Merge 0816232c1c5159d46ea5013f78f72f6f72024147 into a1324407893b603fe6b55ce7c4ee385938291ae1

The module system changed, modules now need to be loaded explicitly

.github/workflows/lint.yml

@@ -13,10 +13,10 @@ jobs:
 
     - uses: actions/checkout@v2
 
-    - name: Set up Python 3.7
+    - name: Set up Python 3.11
       uses: actions/setup-python@v2
       with:
-        python-version: 3.7
+        python-version: 3.11
 
     - name: Cache dependencies
       uses: actions/cache@v2

.github/workflows/test-devel_release.yml

@@ -8,7 +8,7 @@ jobs:
     - name: Create directories
       run: cd ~/; mkdir -p .local/ go/
     - name: Cache dependencies
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         key: 3-${{ runner.os }}-anope-devel_release
         path: '~/.cache
@@ -16,28 +16,28 @@ jobs:
           ${ github.workspace }/anope
 
           '
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.11
     - name: Checkout Anope
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: anope
-        ref: 2.0.9
+        ref: '2.0'
         repository: anope/anope
     - name: Build Anope
       run: |
         cd $GITHUB_WORKSPACE/anope/
-        cp $GITHUB_WORKSPACE/data/anope/* .
-        CFLAGS=-O0 ./Config -quick
-        make -C build -j 4
-        make -C build install
+        sudo apt-get install ninja-build --no-install-recommends
+        mkdir build && cd build
+        cmake -DCMAKE_INSTALL_PREFIX=$HOME/.local/ -DPROGRAM_NAME=anope -DUSE_PCH=ON -GNinja ..
+        ninja install
     - name: Make artefact tarball
       run: cd ~; tar -czf artefacts-anope.tar.gz .local/ go/
     - name: Upload build artefacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: installed-anope
         path: ~/artefacts-*.tar.gz
@@ -47,13 +47,13 @@ jobs:
     steps:
     - name: Create directories
       run: cd ~/; mkdir -p .local/ go/
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.11
     - name: Checkout InspIRCd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: inspircd
         ref: insp3
@@ -61,18 +61,13 @@ jobs:
     - name: Build InspIRCd
       run: |
         cd $GITHUB_WORKSPACE/inspircd/
-
-        # Insp3 <= 3.16.0 and Insp4 <= 4.0.0a21 don't support -DINSPIRCD_UNLIMITED_MAINLOOP
-        patch src/inspircd.cpp < $GITHUB_WORKSPACE/patches/inspircd_mainloop.patch || true
-
         ./configure --prefix=$HOME/.local/inspircd --development
-
         CXXFLAGS=-DINSPIRCD_UNLIMITED_MAINLOOP make -j 4
         make install
     - name: Make artefact tarball
       run: cd ~; tar -czf artefacts-inspircd.tar.gz .local/ go/
     - name: Upload build artefacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: installed-inspircd
         path: ~/artefacts-*.tar.gz
@@ -86,9 +81,9 @@ jobs:
     - test-inspircd-atheme
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Download Artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         path: artifacts
     - name: Install dashboard dependencies
@@ -113,13 +108,13 @@ jobs:
     - build-inspircd
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.11
     - name: Download build artefacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: installed-inspircd
         path: '~'
@@ -130,14 +125,14 @@ jobs:
     - name: Install irctest dependencies
       run: |-
         python -m pip install --upgrade pip
-        pip install pytest pytest-xdist -r requirements.txt
+        pip install pytest pytest-xdist pytest-timeout -r requirements.txt
     - name: Test with pytest
-      run: PYTEST_ARGS='--junit-xml pytest.xml' PATH=$HOME/.local/bin:$PATH  PATH=~/.local/inspircd/sbin:~/.local/inspircd/bin:$PATH
+      run: PYTEST_ARGS='--junit-xml pytest.xml --timeout 300' PATH=$HOME/.local/bin:$PATH  PATH=~/.local/inspircd/sbin:~/.local/inspircd/bin:~/.local/inspircd:$PATH
         make inspircd
       timeout-minutes: 30
     - if: always()
       name: Publish results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: pytest-results_inspircd_devel_release
         path: pytest.xml
@@ -147,18 +142,18 @@ jobs:
     - build-anope
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.11
     - name: Download build artefacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: installed-inspircd
         path: '~'
     - name: Download build artefacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: installed-anope
         path: '~'
@@ -169,14 +164,14 @@ jobs:
     - name: Install irctest dependencies
       run: |-
         python -m pip install --upgrade pip
-        pip install pytest pytest-xdist -r requirements.txt
+        pip install pytest pytest-xdist pytest-timeout -r requirements.txt
     - name: Test with pytest
-      run: PYTEST_ARGS='--junit-xml pytest.xml' PATH=$HOME/.local/bin:$PATH  PATH=~/.local/inspircd/sbin:~/.local/inspircd/bin:$PATH  make
+      run: PYTEST_ARGS='--junit-xml pytest.xml --timeout 300' PATH=$HOME/.local/bin:$PATH  PATH=~/.local/inspircd/sbin:~/.local/inspircd/bin:~/.local/inspircd:$PATH  make
         inspircd-anope
       timeout-minutes: 30
     - if: always()
       name: Publish results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: pytest-results_inspircd-anope_devel_release
         path: pytest.xml
@@ -185,13 +180,13 @@ jobs:
     - build-inspircd
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.11
     - name: Download build artefacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: installed-inspircd
         path: '~'
@@ -202,14 +197,14 @@ jobs:
     - name: Install irctest dependencies
       run: |-
         python -m pip install --upgrade pip
-        pip install pytest pytest-xdist -r requirements.txt
+        pip install pytest pytest-xdist pytest-timeout -r requirements.txt
     - name: Test with pytest
-      run: PYTEST_ARGS='--junit-xml pytest.xml' PATH=$HOME/.local/bin:$PATH  PATH=~/.local/inspircd/sbin:~/.local/inspircd/bin:$PATH
+      run: PYTEST_ARGS='--junit-xml pytest.xml --timeout 300' PATH=$HOME/.local/bin:$PATH  PATH=~/.local/inspircd/sbin:~/.local/inspircd/bin:~/.local/inspircd:$PATH
         make inspircd-atheme
       timeout-minutes: 30
     - if: always()
       name: Publish results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: pytest-results_inspircd-atheme_devel_release
         path: pytest.xml

Makefile

@@ -35,22 +35,18 @@ INSPIRCD_SELECTORS := \
 	and not strict \
 	$(EXTRA_SELECTORS)
 
-# HelpTestCase fails because it returns NOTICEs instead of numerics
 IRCU2_SELECTORS := \
 	not Ergo \
 	and not deprecated \
 	and not strict \
 	$(EXTRA_SELECTORS)
 
-# same justification as ircu2
-# lusers "unregistered" tests fail because 
 NEFARIOUS_SELECTORS := \
 	not Ergo \
 	and not deprecated \
 	and not strict \
 	$(EXTRA_SELECTORS)
 
-# same justification as ircu2
 SNIRCD_SELECTORS := \
 	not Ergo \
 	and not deprecated \
@@ -87,6 +83,19 @@ LIMNORIA_SELECTORS := \
 	(foo or not foo) \
 	$(EXTRA_SELECTORS)
 
+# Tests marked with arbitrary_client_tags or react_tag can't pass because Sable does not support client tags yet
+# Tests marked with private_chathistory can't pass because Sable does not implement CHATHISTORY for DMs
+
+SABLE_SELECTORS := \
+	not Ergo \
+	and not deprecated \
+	and not strict \
+	and not arbitrary_client_tags \
+	and not react_tag \
+	and not private_chathistory \
+	and not list and not lusers and not time and not info \
+	$(EXTRA_SELECTORS)
+
 SOLANUM_SELECTORS := \
 	not Ergo \
 	and not deprecated \
@@ -118,9 +127,9 @@ UNREALIRCD_SELECTORS := \
 	and not private_chathistory \
 	$(EXTRA_SELECTORS)
 
-.PHONY: all flakes bahamut charybdis ergo inspircd ircu2 snircd irc2 mammon nefarious limnoria sopel solanum unrealircd
+.PHONY: all flakes bahamut charybdis ergo inspircd ircu2 snircd irc2 mammon nefarious limnoria sable sopel solanum unrealircd
 
-all: flakes bahamut charybdis ergo inspircd ircu2 snircd irc2 mammon nefarious limnoria sopel solanum unrealircd
+all: flakes bahamut charybdis ergo inspircd ircu2 snircd irc2 mammon nefarious limnoria sable sopel solanum unrealircd
 
 flakes:
 	find irctest/ -name "*.py" -not -path "irctest/scram/*" -print0 | xargs -0 pyflakes3
@@ -249,6 +258,12 @@ ngircd-atheme:
 		-m 'services' \
 		-k "$(NGIRCD_SELECTORS)"
 
+sable:
+	$(PYTEST) $(PYTEST_ARGS) \
+		--controller=irctest.controllers.sable \
+		-n 20 \
+		-k '$(SABLE_SELECTORS)'
+
 solanum:
 	$(PYTEST) $(PYTEST_ARGS) \
 		--controller=irctest.controllers.solanum \

README.md

@@ -3,16 +3,30 @@
 This project aims at testing interoperability of software using the
 IRC protocol, by running them against common test suites.
 
+It is also used while editing [the "Modern" specification](https://modern.ircdocs.horse/)
+to check behavior of a large selection of servers at once.
+
 ## The big picture
 
 This project contains:
 
-* IRC protocol test cases
-* small wrappers around existing software to run tests on them
+* IRC protocol test cases, primarily checking conformance to
+  [the "Modern" specification](https://modern.ircdocs.horse/) and
+  [IRCv3 extensions](https://ircv3.net/irc/), but also
+  [RFC 1459](https://datatracker.ietf.org/doc/html/rfc1459) and
+  [RFC 2812](https://datatracker.ietf.org/doc/html/rfc2812).
+  Most of them are for servers but also some for clients.
+  Only the client-server protocol is tested; server-server protocols are out of scope.
+* Small wrappers around existing software to run tests on them.
+  So far this is restricted to headless software (servers, service packages,
+  and clients bots).
 
 Wrappers run software in temporary directories, so running `irctest` should
 have no side effect.
 
+Test results for the latest version of each supported software, and respective logs,
+are [published daily](https://dashboard.irctest.limnoria.net/).
+
 ## Prerequisites
 
 Install irctest and dependencies:
@@ -20,7 +34,7 @@ Install irctest and dependencies:
 ```
 sudo apt install faketime  # Optional, but greatly speeds up irctest/server_tests/list.py
 cd ~
-git clone https://github.com/ProgVal/irctest.git
+git clone https://github.com/progval/irctest.git
 cd irctest
 pip3 install --user -r requirements.txt
 ```
@@ -40,18 +54,23 @@ You can usually invoke it with `python3 -m pytest` command; which can often
 be called by the `pytest` or `pytest-3` commands (if not, alias them if you
 are planning to use them often).
 
+After installing `pytest-xdist`, you can also pass `pytest` the `-n 10` option
+to run `10` tests in parallel.
+
 The rest of this README assumes `pytest` works.
 
 ## Test selection
 
 A major feature of pytest that irctest heavily relies on is test selection.
 Using the `-k` option, you can select and deselect tests based on their names
-and/or markers (listed in `pytest.ini`).
 For example, you can run `LUSERS`-related tests with `-k lusers`.
-Or only tests based on RFC1459 with `-k rfc1459`.
+
+Using the `-m` option, you can select and deselect and them based on their markers
+(listed in `pytest.ini`).
+For example, you can run only tests based on RFC1459 with `-m rfc1459`.
 
 By default, all tests run; even niche ones. So you probably always want to
-use these options: `-k 'not Ergo and not deprecated and not strict`.
+use these options: `-m 'not Ergo and not deprecated and not strict`.
 This excludes:
 
 * `Ergo`-specific tests (included as Ergo uses irctest as its official
@@ -63,6 +82,10 @@ This excludes:
 
 ## Running tests
 
+This list is non-exhaustive, see `workflows.yml` for software not listed here.
+If software you want to test is not listed their either, please open an issue
+or pull request to add support for it.
+
 ### Servers
 
 #### Ergo:
@@ -89,20 +112,6 @@ make install
 pytest --controller irctest.controllers.solanum -k 'not Ergo and not deprecated and not strict'
 ```
 
-#### Charybdis:
-
-```
-cd /tmp/
-git clone https://github.com/atheme/charybdis.git
-cd charybdis
-./autogen.sh
-./configure --prefix=$HOME/.local/
-make -j 4
-make install
-cd ~/irctest
-pytest --controller irctest.controllers.charybdis -k 'not Ergo and not deprecated and not strict'
-```
-
 #### InspIRCd:
 
 ```
@@ -123,14 +132,6 @@ cd ~/irctest
 pytest --controller irctest.controllers.inspircd -k 'not Ergo and not deprecated and not strict'
 ```
 
-#### Mammon:
-
-```
-pip3 install --user git+https://github.com/mammon-ircd/mammon.git
-cd ~/irctest
-pytest --controller irctest.controllers.mammon -k 'not Ergo and not deprecated and not strict'
-```
-
 #### UnrealIRCd:
 
 ```
@@ -147,8 +148,8 @@ pytest --controller irctest.controllers.unreal -k 'not Ergo and not deprecated a
 
 ### Servers with services
 
-Besides Ergo (that has built-in services), most server controllers can optionally run
-service packages.
+Besides Ergo (that has built-in services) and Sable (that ships its own services),
+most server controllers can optionally run service packages.
 
 #### Atheme:
 

data/anope/config.cache

@@ -1,8 +0,0 @@
-INSTDIR="$HOME/.local/"
-RUNGROUP=""
-UMASK=077
-DEBUG="yes"
-USE_PCH="yes"
-EXTRA_INCLUDE_DIRS=""
-EXTRA_LIB_DIRS=""
-EXTRA_CONFIG_ARGS=""

irctest/basecontrollers.py

@@ -1,7 +1,8 @@
 from __future__ import annotations
 
+import contextlib
 import dataclasses
-import multiprocessing
+import json
 import os
 from pathlib import Path
 import shutil
@@ -10,23 +11,13 @@ import subprocess
 import tempfile
 import textwrap
 import time
-from typing import (
-    IO,
-    Any,
-    Callable,
-    Dict,
-    List,
-    MutableMapping,
-    Optional,
-    Set,
-    Tuple,
-    Type,
-)
+from typing import IO, Any, Callable, Dict, Iterator, List, Optional, Set, Tuple, Type
 
 import irctest
 
 from . import authentication, tls
 from .client_mock import ClientMock
+from .irc_utils.filelock import FileLock
 from .irc_utils.junkdrawer import find_hostname_and_port
 from .irc_utils.message_parser import Message
 from .runner import NotImplementedByController
@@ -47,6 +38,14 @@ class TestCaseControllerConfig:
     chathistory: bool = False
     """Whether to enable chathistory features."""
 
+    account_registration_before_connect: bool = False
+    """Whether draft/account-registration should be allowed before completing
+    connection registration (NICK + USER + CAP END)"""
+
+    account_registration_requires_email: bool = False
+    """Whether an email address must be provided when using draft/account-registration.
+    This does not imply servers must validate it."""
+
     ergo_roleplay: bool = False
     """Whether to enable the Ergo role-play commands."""
 
@@ -68,43 +67,39 @@ class _BaseController:
 
     supports_sts: bool
     supported_sasl_mechanisms: Set[str]
+
     proc: Optional[subprocess.Popen]
 
-    _used_ports: Set[Tuple[str, int]]
-    """``(hostname, port))`` used by this controller."""
-    # the following need to be shared between processes in case we are running in
-    # parallel (with pytest-xdist)
-    # The dicts are used as a set of (hostname, port), because _manager.set() doesn't
-    # exist.
-    _manager = multiprocessing.Manager()
-    _port_lock = _manager.Lock()
-    """Lock for access to ``_all_used_ports`` and ``_available_ports``."""
-    _all_used_ports: MutableMapping[Tuple[str, int], None] = _manager.dict()
-    """``(hostname, port)`` used by all controllers."""
-    _available_ports: MutableMapping[Tuple[str, int], None] = _manager.dict()
-    """``(hostname, port)`` available to any controller."""
+    _used_ports_path = Path(tempfile.gettempdir()) / "irctest_ports.json"
+    _port_lock = FileLock(Path(tempfile.gettempdir()) / "irctest_ports.json.lock")
 
     def __init__(self, test_config: TestCaseControllerConfig):
         self.test_config = test_config
         self.proc = None
-        self._used_ports = set()
+        self._own_ports: Set[Tuple[str, int]] = set()
+
+    @contextlib.contextmanager
+    def _used_ports(self) -> Iterator[Set[Tuple[str, int]]]:
+        with self._port_lock:
+            if not self._used_ports_path.exists():
+                self._used_ports_path.write_text("[]")
+            used_ports = {
+                (h, p) for (h, p) in json.loads(self._used_ports_path.read_text())
+            }
+            yield used_ports
+            self._used_ports_path.write_text(json.dumps(list(used_ports)))
 
     def get_hostname_and_port(self) -> Tuple[str, int]:
-        with self._port_lock:
-            try:
-                # try to get a known available port
-                ((hostname, port), _) = self._available_ports.popitem()
-            except KeyError:
-                # if there aren't any, iterate while we get a fresh one.
-                while True:
-                    (hostname, port) = find_hostname_and_port()
-                    if (hostname, port) not in self._all_used_ports:
-                        # double-checking in self._used_ports to prevent collisions
-                        # between controllers starting at the same time.
-                        break
+        with self._used_ports() as used_ports:
+            while True:
+                (hostname, port) = find_hostname_and_port()
+                if (hostname, port) not in used_ports:
+                    # double-checking in self._used_ports to prevent collisions
+                    # between controllers starting at the same time.
+                    break
 
-            # Make this port unavailable to other processes
-            self._all_used_ports[(hostname, port)] = None
+            used_ports.add((hostname, port))
+            self._own_ports.add((hostname, port))
 
         return (hostname, port)
 
@@ -130,10 +125,10 @@ class _BaseController:
         if self.proc:
             self.kill_proc()
 
-        # move this controller's ports from _all_used_ports to _available_ports
-        for hostname, port in self._used_ports:
-            del self._all_used_ports[(hostname, port)]
-            self._available_ports[(hostname, port)] = None
+        with self._used_ports() as used_ports:
+            for hostname, port in list(self._own_ports):
+                used_ports.remove((hostname, port))
+                self._own_ports.remove((hostname, port))
 
 
 class DirectoryBasedController(_BaseController):
@@ -248,6 +243,12 @@ class BaseServerController(_BaseController):
     extban_mute_char: Optional[str] = None
     """Character used for the 'mute' extban"""
     nickserv = "NickServ"
+    sync_sleep_time = 0.0
+    """How many seconds to sleep before clients synchronously get messages.
+
+    This can be 0 for servers answering all commands in order (all but Sable as of
+    this writing), as irctest emits a PING, waits for a PONG, and captures all messages
+    between the two."""
 
     def __init__(self, *args: Any, **kwargs: Any):
         super().__init__(*args, **kwargs)
@@ -296,7 +297,7 @@ class BaseServerController(_BaseController):
                         time.sleep(0.01)
 
                         c.send(b" ")  # Triggers BrokenPipeError
-                except BrokenPipeError:
+                except (BrokenPipeError, ConnectionResetError):
                     # ircu2 cuts the connection without a message if registration
                     # is not complete.
                     pass
@@ -350,13 +351,17 @@ class BaseServicesController(_BaseController):
         c.connect(self.server_controller.hostname, self.server_controller.port)
         c.sendLine("NICK chkNS")
         c.sendLine("USER chk chk chk chk")
-        for msg in c.getMessages(synchronize=False):
-            if msg.command == "PING":
-                # Hi Unreal
-                c.sendLine("PONG :" + msg.params[0])
-        c.getMessages()
+        time.sleep(self.server_controller.sync_sleep_time)
+        got_end_of_motd = False
+        while not got_end_of_motd:
+            for msg in c.getMessages(synchronize=False):
+                if msg.command == "PING":
+                    # Hi Unreal
+                    c.sendLine("PONG :" + msg.params[0])
+                if msg.command in ("376", "422"):  # RPL_ENDOFMOTD / ERR_NOMOTD
+                    got_end_of_motd = True
 
-        timeout = time.time() + 3
+        timeout = time.time() + 10
         while True:
             c.sendLine(f"PRIVMSG {self.server_controller.nickserv} :help")
 
@@ -365,11 +370,19 @@ class BaseServicesController(_BaseController):
                 if msg.command == "401":
                     # NickServ not available yet
                     pass
+                elif msg.command in ("MODE", "221"):  # RPL_UMODEIS
+                    pass
+                elif msg.command == "396":  # RPL_VISIBLEHOST
+                    pass
                 elif msg.command == "NOTICE":
-                    # NickServ is available
-                    assert "nickserv" in (msg.prefix or "").lower(), msg
-                    print("breaking")
-                    break
+                    assert msg.prefix is not None
+                    if "!" not in msg.prefix and "." in msg.prefix:
+                        # Server notice
+                        pass
+                    else:
+                        # NickServ is available
+                        assert "nickserv" in (msg.prefix or "").lower(), msg
+                        break
                 else:
                     assert False, f"unexpected reply from NickServ: {msg}"
             else:

irctest/cases.py

@@ -160,6 +160,7 @@ class _IrcTestCase(Generic[TController]):
     def messageDiffers(
         self,
         msg: Message,
+        command: Union[str, None, patma.Operator] = None,
         params: Optional[List[Union[str, None, patma.Operator]]] = None,
         target: Optional[str] = None,
         tags: Optional[
@@ -186,6 +187,14 @@ class _IrcTestCase(Generic[TController]):
                     msg=msg,
                 )
 
+        if command is not None and not patma.match_string(msg.command, command):
+            fail_msg = (
+                fail_msg or "expected command to match {expects}, got {got}: {msg}"
+            )
+            return fail_msg.format(
+                *extra_format, got=msg.command, expects=command, msg=msg
+            )
+
         if prefix is not None and not patma.match_string(msg.prefix, prefix):
             fail_msg = (
                 fail_msg or "expected prefix to match {expects}, got {got}: {msg}"
@@ -214,7 +223,7 @@ class _IrcTestCase(Generic[TController]):
                     or "expected nick to be {expects}, got {got} instead: {msg}"
                 )
                 return fail_msg.format(
-                    *extra_format, got=got_nick, expects=nick, param=key, msg=msg
+                    *extra_format, got=got_nick, expects=nick, msg=msg
                 )
 
         return None
@@ -585,9 +594,13 @@ class BaseServerTestCase(
         del self.clients[name]
 
     def getMessages(self, client: TClientName, **kwargs: Any) -> List[Message]:
+        if kwargs.get("synchronize", True):
+            time.sleep(self.controller.sync_sleep_time)
         return self.clients[client].getMessages(**kwargs)
 
     def getMessage(self, client: TClientName, **kwargs: Any) -> Message:
+        if kwargs.get("synchronize", True):
+            time.sleep(self.controller.sync_sleep_time)
         return self.clients[client].getMessage(**kwargs)
 
     def getRegistrationMessage(self, client: TClientName) -> Message:
@@ -798,7 +811,7 @@ def xfailIf(
     def decorator(f: Callable[..., _TReturn]) -> Callable[..., _TReturn]:
         @functools.wraps(f)
         def newf(self: _TSelf, *args: Any, **kwargs: Any) -> _TReturn:
-            if condition(self):
+            if condition(self, *args, **kwargs):
                 try:
                     return f(self, *args, **kwargs)
                 except Exception:
@@ -815,7 +828,10 @@ def xfailIf(
 def xfailIfSoftware(
     names: List[str], reason: str
 ) -> Callable[[Callable[..., _TReturn]], Callable[..., _TReturn]]:
-    return xfailIf(lambda testcase: testcase.controller.software_name in names, reason)
+    def pred(testcase: _IrcTestCase, *args: Any, **kwargs: Any) -> bool:
+        return testcase.controller.software_name in names
+
+    return xfailIf(pred, reason)
 
 
 def mark_services(cls: TClass) -> TClass:

irctest/controllers/anope_services.py

@@ -1,7 +1,8 @@
+import functools
 from pathlib import Path
 import shutil
 import subprocess
-from typing import Type
+from typing import Tuple, Type
 
 from irctest.basecontrollers import BaseServicesController, DirectoryBasedController
 
@@ -48,6 +49,8 @@ module {{
     client = "NickServ"
     forceemail = no
     passlen = 1000  # Some tests need long passwords
+    maxpasslen = 1000
+    minpasslen = 1
 }}
 command {{ service = "NickServ"; name = "HELP"; command = "generic/help"; }}
 
@@ -63,17 +66,28 @@ options {{
     warningtimeout = 4h
 }}
 
-module {{ name = "m_sasl" }}
-module {{ name = "enc_sha256" }}
+module {{ name = "{module_prefix}sasl" }}
+module {{ name = "enc_bcrypt" }}
 module {{ name = "ns_cert" }}
 
 """
 
 
+@functools.lru_cache()
+def installed_version() -> Tuple[int, ...]:
+    output = subprocess.run(
+        ["anope", "--version"], stdout=subprocess.PIPE, universal_newlines=True
+    ).stdout
+    (anope, version, *trailing) = output.split()[0].split("-")
+    assert anope == "Anope"
+    return tuple(map(int, version.split(".")))
+
+
 class AnopeController(BaseServicesController, DirectoryBasedController):
     """Collaborator for server controllers that rely on Anope"""
 
     software_name = "Anope"
+    software_version = None
 
     def run(self, protocol: str, server_hostname: str, server_port: int) -> None:
         self.create_config()
@@ -88,32 +102,46 @@ class AnopeController(BaseServicesController, DirectoryBasedController):
             "ngircd",
         )
 
+        assert self.directory
+        services_path = shutil.which("anope")
+        assert services_path
+
+        # Rewrite Anope 2.0 module names for 2.1
+        if not self.software_version:
+            self.software_version = installed_version()
+        if self.software_version >= (2, 1, 0):
+            if protocol == "charybdis":
+                protocol = "solanum"
+            elif protocol == "inspircd3":
+                protocol = "inspircd"
+            elif protocol == "unreal4":
+                protocol = "unrealircd"
+
         with self.open_file("conf/services.conf") as fd:
             fd.write(
                 TEMPLATE_CONFIG.format(
                     protocol=protocol,
                     server_hostname=server_hostname,
                     server_port=server_port,
+                    module_prefix="" if self.software_version >= (2, 1, 2) else "m_",
                 )
             )
 
         with self.open_file("conf/empty_file") as fd:
             pass
 
-        assert self.directory
-        services_path = shutil.which("services")
-        assert services_path
-
         # Config and code need to be in the same directory, *obviously*
         (self.directory / "lib").symlink_to(Path(services_path).parent.parent / "lib")
+        (self.directory / "modules").symlink_to(
+            Path(services_path).parent.parent / "modules"
+        )
 
         self.proc = subprocess.Popen(
             [
-                "services",
-                "-n",  # don't fork
-                "--config=services.conf",  # can't be an absolute path
-                # "--logdir",
-                # f"/tmp/services-{server_port}.log",
+                "anope",
+                "--config=services.conf",  # can't be an absolute path in 2.0
+                "--nofork",  # don't fork
+                "--nopid",  # don't write a pid
             ],
             cwd=self.directory,
             # stdout=subprocess.DEVNULL,

irctest/controllers/base_hybrid.py

@@ -1,3 +1,4 @@
+from pathlib import Path
 import shutil
 import subprocess
 from typing import Optional
@@ -51,6 +52,8 @@ class BaseHybridController(BaseServerController, DirectoryBasedController):
             )
         else:
             ssl_config = ""
+        binary_path = shutil.which(self.binary_name)
+        assert binary_path, f"Could not find '{binary_path}' executable"
         with self.open_file("server.conf") as fd:
             fd.write(
                 (self.template_config).format(
@@ -60,6 +63,7 @@ class BaseHybridController(BaseServerController, DirectoryBasedController):
                     services_port=services_port,
                     password_field=password_field,
                     ssl_config=ssl_config,
+                    install_prefix=Path(binary_path).parent.parent,
                 )
             )
         assert self.directory

irctest/controllers/ergo.py

@@ -14,6 +14,7 @@ BASE_CONFIG = {
         "name": "My.Little.Server",
         "listeners": {},
         "max-sendq": "16k",
+        "casemapping": "ascii",
         "connection-limits": {
             "enabled": True,
             "cidr-len-ipv4": 32,
@@ -57,6 +58,11 @@ BASE_CONFIG = {
             "enabled": True,
             "method": "strict",
         },
+        "login-throttling": {
+            "enabled": True,
+            "duration": "1m",
+            "max-attempts": 3,
+        },
     },
     "channels": {"registration": {"enabled": True}},
     "datastore": {"path": None},
@@ -166,6 +172,16 @@ class ErgoController(BaseServerController, DirectoryBasedController):
         if enable_roleplay:
             config["roleplay"] = {"enabled": True}
 
+        if self.test_config.account_registration_before_connect:
+            config["accounts"]["registration"]["allow-before-connect"] = True  # type: ignore
+        if self.test_config.account_registration_requires_email:
+            config["accounts"]["registration"]["email-verification"] = {  # type: ignore
+                "enabled": True,
+                "sender": "test@example.com",
+                "require-tls": True,
+                "helo-domain": "example.com",
+            }
+
         if self.test_config.ergo_config:
             self.test_config.ergo_config(config)
 
@@ -211,9 +227,6 @@ class ErgoController(BaseServerController, DirectoryBasedController):
         username: str,
         password: Optional[str] = None,
     ) -> None:
-        # XXX: Move this somewhere else when
-        # https://github.com/ircv3/ircv3-specifications/pull/152 becomes
-        # part of the specification
         if not case.run_services:
             # Ergo does not actually need this, but other controllers do, so we
             # are checking it here as well for tests that aren't tested with other

irctest/controllers/hybrid.py

@@ -3,6 +3,9 @@ from typing import Set, Type
 from .base_hybrid import BaseHybridController
 
 TEMPLATE_CONFIG = """
+module_base_path = "{install_prefix}/lib/ircd-hybrid/modules";
+.include "./reference.modules.conf"
+
 serverinfo {{
     name = "My.Little.Server";
     sid = "42X";

irctest/controllers/inspircd.py

@@ -48,9 +48,7 @@ TEMPLATE_CONFIG = """
     sendpass="password"
     >
 <module name="spanningtree">
-<module name="services_account">
 <module name="hidechans">  # Anope errors when missing
-<module name="svshold">  # Atheme raises a warning when missing
 <sasl requiressl="no"
       target="services.example.org">
 
@@ -71,14 +69,10 @@ TEMPLATE_CONFIG = """
 <module name="ircv3_servertime">
 <module name="monitor">
 <module name="m_muteban">  # for testing mute extbans
-<module name="namesx"> # For multi-prefix
 <module name="sasl">
 <module name="uhnames">  # For userhost-in-names
-
-# HELP/HELPOP
 <module name="alias">  # for the HELP alias
-<module name="{help_module_name}">
-<include file="examples/{help_module_name}.conf.example">
+{version_config}
 
 # Misc:
 <log method="file" type="*" level="debug" target="/tmp/ircd-{port}.log">
@@ -90,6 +84,26 @@ TEMPLATE_SSL_CONFIG = """
 <openssl certfile="{pem_path}" keyfile="{key_path}" dhfile="{dh_path}" hash="sha1">
 """
 
+TEMPLATE_V3_CONFIG = """
+<module name="namesx"> # For multi-prefix
+<module name="services_account">
+<module name="svshold">  # Atheme raises a warning when missing
+
+# HELP/HELPOP
+<module name="helpop">
+<include file="examples/helpop.conf.example">
+"""
+
+TEMPLATE_V4_CONFIG = """
+<module name="account">
+<module name="multiprefix"> # For multi-prefix
+<module name="services">
+
+# HELP/HELPOP
+<module name="help">
+<include file="examples/help.example.conf">
+"""
+
 
 @functools.lru_cache()
 def installed_version() -> int:
@@ -98,12 +112,14 @@ def installed_version() -> int:
         return 3
     if output.startswith("InspIRCd-4"):
         return 4
-    else:
-        assert False, f"unexpected version: {output}"
+    if output.startswith("InspIRCd-5"):
+        return 5
+    assert False, f"unexpected version: {output}"
 
 
 class InspircdController(BaseServerController, DirectoryBasedController):
     software_name = "InspIRCd"
+    software_version = installed_version()
     supported_sasl_mechanisms = {"PLAIN"}
     supports_sts = False
     extban_mute_char = "m"
@@ -140,9 +156,9 @@ class InspircdController(BaseServerController, DirectoryBasedController):
             ssl_config = ""
 
         if installed_version() == 3:
-            help_module_name = "helpop"
-        elif installed_version() == 4:
-            help_module_name = "help"
+            version_config = TEMPLATE_V3_CONFIG
+        elif installed_version() >= 4:
+            version_config = TEMPLATE_V4_CONFIG
         else:
             assert False, f"unexpected version: {installed_version()}"
 
@@ -155,7 +171,7 @@ class InspircdController(BaseServerController, DirectoryBasedController):
                     services_port=services_port,
                     password_field=password_field,
                     ssl_config=ssl_config,
-                    help_module_name=help_module_name,
+                    version_config=version_config,
                 )
             )
         assert self.directory

irctest/controllers/ngircd.py

@@ -23,10 +23,14 @@ TEMPLATE_CONFIG = """
 
 [Options]
     MorePrivacy = no  # by default, always replies to WHOWAS with ERR_WASNOSUCHNICK
+    PAM = no
 
 [Operator]
     Name = operuser
     Password = operpassword
+
+[Limits]
+    MaxNickLength = 32  # defaults to 9
 """
 
 

irctest/controllers/sable.py

@@ -0,0 +1,499 @@
+import os
+from pathlib import Path
+import shutil
+import signal
+import subprocess
+import tempfile
+import time
+from typing import Optional, Type
+
+from irctest.basecontrollers import (
+    BaseServerController,
+    BaseServicesController,
+    DirectoryBasedController,
+    NotImplementedByController,
+)
+from irctest.cases import BaseServerTestCase
+from irctest.exceptions import NoMessageException
+from irctest.patma import ANYSTR
+
+GEN_CERTS = """
+mkdir -p useless_openssl_data/
+
+cat > openssl.cnf <<EOF
+[ ca ]
+default_ca	= CA_default		# The default ca section
+
+[ CA_default ]
+new_certs_dir = useless_openssl_data/
+database = useless_openssl_data/db
+policy = policy_anything
+serial = useless_openssl_data/serial
+copy_extensions = copy
+email_in_dn = no
+rand_serial = no
+
+[ policy_anything ]
+countryName		       = optional
+stateOrProvinceName	   = optional
+localityName		   = optional
+organizationName	   = optional
+organizationalUnitName	= optional
+commonName		       = supplied
+emailAddress		   = optional
+
+[ usr_cert ]
+subjectAltName=subject:copy
+EOF
+
+rm -f useless_openssl_data/db
+touch useless_openssl_data/db
+echo 01 > useless_openssl_data/serial
+
+# Generate CA
+openssl req -x509 -nodes -newkey rsa:2048 -batch \
+    -subj "/CN=Test CA" \
+    -outform PEM -out ca_cert.pem \
+    -keyout ca_cert.key
+
+for server in $*; do
+    openssl genrsa -traditional \
+        -out $server.key \
+        2048
+    openssl req -nodes -batch -new \
+        -addext "subjectAltName = DNS:$server" \
+        -key $server.key \
+        -outform PEM -out server_$server.req
+    openssl ca -config openssl.cnf -days 3650 -md sha512 -batch \
+        -subj /CN=$server \
+        -keyfile ca_cert.key -cert ca_cert.pem \
+        -in server_$server.req \
+        -out $server.pem
+    openssl x509 -sha1 -in $server.pem -fingerprint -noout \
+        | sed "s/.*=//" | sed "s/://g" | tr '[:upper:]' '[:lower:]' > $server.pem.sha1
+done
+
+rm -r useless_openssl_data/
+"""
+
+_certs_dir = None
+
+
+def certs_dir() -> Path:
+    global _certs_dir
+    if _certs_dir is None:
+        certs_dir = tempfile.TemporaryDirectory()
+        (Path(certs_dir.name) / "gen_certs.sh").write_text(GEN_CERTS)
+        subprocess.run(
+            ["bash", "gen_certs.sh", "My.Little.Server", "My.Little.Services"],
+            cwd=certs_dir.name,
+            check=True,
+        )
+        _certs_dir = certs_dir
+    return Path(_certs_dir.name)
+
+
+NETWORK_CONFIG = """
+{
+    "fanout": 1,
+    "ca_file": "%(certs_dir)s/ca_cert.pem",
+
+    "peers": [
+        { "name": "My.Little.Services", "address": "%(services_hostname)s:%(services_port)s", "fingerprint": "%(services_cert_sha1)s" },
+        { "name": "My.Little.Server", "address": "%(server1_hostname)s:%(server1_port)s", "fingerprint": "%(server1_cert_sha1)s" }
+    ]
+}
+"""
+
+NETWORK_CONFIG_CONFIG = """
+{
+    "opers": [
+        {
+            "name": "operuser",
+            // echo -n "operpassword" | openssl passwd -6 -stdin
+            "hash": "$6$z5yA.OfGliDoi/R2$BgSsguS6bxAsPSCygDisgDw5JZuo5.88eU3Hyc7/4OaNpeKIxWGjOggeHzOl0xLiZg1vfwxXjOTFN14wG5vNI."
+        }
+    ],
+
+    "alias_users": [
+        %(services_alias_users)s
+    ],
+
+    "default_roles": {
+        "builtin:op": [
+            "always_send",
+            "op_self", "op_grant", "voice_self", "voice_grant",
+            "receive_op", "receive_voice", "receive_opmod",
+            "topic", "kick", "set_simple_mode", "set_key",
+            "rename",
+            "ban_view", "ban_add", "ban_remove_any",
+            "quiet_view", "quiet_add", "quiet_remove_any",
+            "exempt_view", "exempt_add", "exempt_remove_any",
+            "invite_self", "invite_other",
+            "invex_view", "invex_add", "invex_remove_any"
+        ],
+        "builtin:voice": [
+            "always_send",
+            "voice_self",
+            "receive_voice",
+            "ban_view", "quiet_view"
+        ],
+        "builtin:all": [
+            "ban_view", "quiet_view"
+        ]
+    },
+
+    "debug_mode": true
+}
+"""
+
+SERVICES_ALIAS_USERS = """
+        {
+            "nick": "ChanServ",
+            "user": "ChanServ",
+            "host": "services.",
+            "realname": "Channel services compatibility layer",
+            "command_alias": "CS"
+        },
+        {
+            "nick": "NickServ",
+            "user": "NickServ",
+            "host": "services.",
+            "realname": "Account services compatibility layer",
+            "command_alias": "NS"
+        }
+"""
+
+SERVER_CONFIG = """
+{
+    "server_id": 1,
+    "server_name": "My.Little.Server",
+
+    "management": {
+        "address": "%(server1_management_hostname)s:%(server1_management_port)s",
+        "client_ca": "%(certs_dir)s/ca_cert.pem",
+        "authorised_fingerprints": [
+            { "name": "user1", "fingerprint": "435bc6db9f22e84ba5d9652432154617c9509370" },
+        ],
+    },
+
+    "server": {
+        "listeners": [
+            { "address": "%(c2s_hostname)s:%(c2s_port)s" },
+        ],
+    },
+
+    "event_log": {
+        "event_expiry": 300, // five minutes, for local testing
+    },
+
+    "tls_config": {
+        "key_file": "%(certs_dir)s/My.Little.Server.key",
+        "cert_file": "%(certs_dir)s/My.Little.Server.pem",
+    },
+
+    "node_config": {
+        "listen_addr": "%(server1_hostname)s:%(server1_port)s",
+        "cert_file": "%(certs_dir)s/My.Little.Server.pem",
+        "key_file": "%(certs_dir)s/My.Little.Server.key",
+    },
+
+    "log": {
+        "dir": "log/server1/",
+
+        "module-levels": {
+            "": "debug",
+            "sable_ircd": "trace",
+        },
+
+        "targets": [
+            {
+                "target": "stdout",
+                "level": "trace",
+                "modules": [ "sable", "audit", "client_listener" ],
+            },
+        ],
+    },
+}
+"""
+
+SERVICES_CONFIG = """
+{
+    "server_id": 99,
+    "server_name": "My.Little.Services",
+
+    "management": {
+        "address": "%(services_management_hostname)s:%(services_management_port)s",
+        "client_ca": "%(certs_dir)s/ca_cert.pem",
+        "authorised_fingerprints": [
+            { "name": "user1", "fingerprint": "435bc6db9f22e84ba5d9652432154617c9509370" }
+        ]
+    },
+
+    "server": {
+        "database": "test_database.json",
+        "default_roles": {
+            "builtin:founder": [
+                "founder", "access_view", "access_edit", "role_view", "role_edit",
+                "op_self", "op_grant",
+                "voice_self", "voice_grant",
+                "always_send",
+                "invite_self", "invite_other",
+                "receive_op", "receive_voice", "receive_opmod",
+                "topic", "kick", "set_simple_mode", "set_key",
+                "rename",
+                "ban_view", "ban_add", "ban_remove_any",
+                "quiet_view", "quiet_add", "quiet_remove_any",
+                "exempt_view", "exempt_add", "exempt_remove_any",
+                "invex_view", "invex_add", "invex_remove_any"
+            ],
+            "builtin:op": [
+                "always_send",
+                "receive_op", "receive_voice", "receive_opmod",
+                "topic", "kick", "set_simple_mode", "set_key",
+                "rename",
+                "ban_view", "ban_add", "ban_remove_any",
+                "quiet_view", "quiet_add", "quiet_remove_any",
+                "exempt_view", "exempt_add", "exempt_remove_any",
+                "invex_view", "invex_add", "invex_remove_any"
+            ],
+            "builtin:voice": [
+                "always_send", "voice_self", "receive_voice"
+            ]
+        },
+
+        "password_hash": {
+            "algorithm": "bcrypt", // Only "bcrypt" is supported for now
+            "cost": 4,  // Exponentially faster than the default 12
+        },
+
+    },
+
+    "event_log": {
+        "event_expiry": 300, // five minutes, for local testing
+    },
+
+    "tls_config": {
+        "key_file": "%(certs_dir)s/My.Little.Services.key",
+        "cert_file": "%(certs_dir)s/My.Little.Services.pem"
+    },
+
+    "node_config": {
+        "listen_addr": "%(services_hostname)s:%(services_port)s",
+        "cert_file": "%(certs_dir)s/My.Little.Services.pem",
+        "key_file": "%(certs_dir)s/My.Little.Services.key"
+    },
+
+    "log": {
+        "dir": "log/services/",
+
+        "module-levels": {
+            "": "debug"
+        },
+
+        "targets": [
+            {
+                "target": "stdout",
+                "level": "debug",
+                "modules": [ "sable_services" ]
+            }
+        ]
+    }
+}
+"""
+
+
+class SableController(BaseServerController, DirectoryBasedController):
+    software_name = "Sable"
+    supported_sasl_mechanisms = {"PLAIN"}
+    sync_sleep_time = 0.1
+    """Sable processes commands very quickly, but responses for commands changing the
+    state may be sent after later commands for messages which don't."""
+
+    def run(
+        self,
+        hostname: str,
+        port: int,
+        *,
+        password: Optional[str],
+        ssl: bool,
+        run_services: bool,
+        faketime: Optional[str],
+    ) -> None:
+        if password is not None:
+            raise NotImplementedByController("PASS command")
+        if ssl:
+            raise NotImplementedByController("SSL")
+        if self.test_config.account_registration_before_connect:
+            raise NotImplementedByController("account-registration with before-connect")
+        if self.test_config.account_registration_requires_email:
+            raise NotImplementedByController("account-registration with email-required")
+
+        assert self.proc is None
+        self.port = port
+        self.create_config()
+
+        assert self.directory
+
+        (self.directory / "configs").mkdir()
+
+        c2s_hostname = hostname
+        c2s_port = port
+        del hostname, port
+        # base controller expects this to check for NickServ presence itself
+        self.hostname = c2s_hostname
+        self.port = c2s_port
+
+        (server1_hostname, server1_port) = self.get_hostname_and_port()
+        (services_hostname, services_port) = self.get_hostname_and_port()
+
+        # Sable requires inbound connections to match the configured hostname,
+        # so we can't configure 0.0.0.0
+        server1_hostname = services_hostname = "127.0.0.1"
+
+        (
+            server1_management_hostname,
+            server1_management_port,
+        ) = self.get_hostname_and_port()
+        (
+            services_management_hostname,
+            services_management_port,
+        ) = self.get_hostname_and_port()
+
+        self.template_vars = dict(
+            certs_dir=certs_dir(),
+            c2s_hostname=c2s_hostname,
+            c2s_port=c2s_port,
+            server1_hostname=server1_hostname,
+            server1_port=server1_port,
+            server1_cert_sha1=(certs_dir() / "My.Little.Server.pem.sha1")
+            .read_text()
+            .strip(),
+            server1_management_hostname=server1_management_hostname,
+            server1_management_port=server1_management_port,
+            services_hostname=services_hostname,
+            services_port=services_port,
+            services_cert_sha1=(certs_dir() / "My.Little.Services.pem.sha1")
+            .read_text()
+            .strip(),
+            services_management_hostname=services_management_hostname,
+            services_management_port=services_management_port,
+            services_alias_users=SERVICES_ALIAS_USERS if run_services else "",
+        )
+
+        with self.open_file("configs/network.conf") as fd:
+            fd.write(NETWORK_CONFIG % self.template_vars)
+        with self.open_file("configs/network_config.conf") as fd:
+            fd.write(NETWORK_CONFIG_CONFIG % self.template_vars)
+        with self.open_file("configs/server1.conf") as fd:
+            fd.write(SERVER_CONFIG % self.template_vars)
+
+        if faketime and shutil.which("faketime"):
+            faketime_cmd = ["faketime", "-f", faketime]
+            self.faketime_enabled = True
+        else:
+            faketime_cmd = []
+
+        self.proc = subprocess.Popen(
+            [
+                *faketime_cmd,
+                "sable_ircd",
+                "--foreground",
+                "--server-conf",
+                self.directory / "configs/server1.conf",
+                "--network-conf",
+                self.directory / "configs/network.conf",
+                "--bootstrap-network",
+                self.directory / "configs/network_config.conf",
+            ],
+            cwd=self.directory,
+            preexec_fn=os.setsid,
+            env={"RUST_BACKTRACE": "1", **os.environ},
+        )
+        self.pgroup_id = os.getpgid(self.proc.pid)
+
+        if run_services:
+            self.services_controller = SableServicesController(self.test_config, self)
+            self.services_controller.run(
+                protocol="sable",
+                server_hostname=services_hostname,
+                server_port=services_port,
+            )
+
+    def kill_proc(self) -> None:
+        os.killpg(self.pgroup_id, signal.SIGKILL)
+        super().kill_proc()
+
+    def registerUser(
+        self,
+        case: BaseServerTestCase,  # type: ignore
+        username: str,
+        password: Optional[str] = None,
+    ) -> None:
+        # XXX: Move this somewhere else when
+        # https://github.com/ircv3/ircv3-specifications/pull/152 becomes
+        # part of the specification
+        if not case.run_services:
+            raise ValueError(
+                "Attempted to register a nick, but `run_services` it not True."
+            )
+        assert password
+        client = case.addClient(show_io=True)
+        case.sendLine(client, "NICK " + username)
+        case.sendLine(client, "USER r e g :user")
+        while case.getRegistrationMessage(client).command != "001":
+            pass
+        case.getMessages(client)
+        case.sendLine(
+            client,
+            f"REGISTER * * {password}",
+        )
+        for _ in range(100):
+            time.sleep(0.1)
+            try:
+                msg = case.getMessage(client)
+            except NoMessageException:
+                continue
+            case.assertMessageMatch(
+                msg, command="REGISTER", params=["SUCCESS", username, ANYSTR]
+            )
+            break
+        else:
+            raise NoMessageException()
+        case.sendLine(client, "QUIT")
+        case.assertDisconnected(client)
+
+
+class SableServicesController(BaseServicesController):
+    server_controller: SableController
+    software_name = "Sable Services"
+
+    def run(self, protocol: str, server_hostname: str, server_port: int) -> None:
+        assert protocol == "sable"
+        assert self.server_controller.directory is not None
+
+        with self.server_controller.open_file("configs/services.conf") as fd:
+            fd.write(SERVICES_CONFIG % self.server_controller.template_vars)
+
+        self.proc = subprocess.Popen(
+            [
+                "sable_services",
+                "--foreground",
+                "--server-conf",
+                self.server_controller.directory / "configs/services.conf",
+                "--network-conf",
+                self.server_controller.directory / "configs/network.conf",
+            ],
+            cwd=self.server_controller.directory,
+            preexec_fn=os.setsid,
+            env={"RUST_BACKTRACE": "1", **os.environ},
+        )
+        self.pgroup_id = os.getpgid(self.proc.pid)
+
+    def kill_proc(self) -> None:
+        os.killpg(self.pgroup_id, signal.SIGKILL)
+        super().kill_proc()
+
+
+def get_irctest_controller_class() -> Type[SableController]:
+    return SableController

irctest/dashboard/format.py

@@ -245,8 +245,19 @@ def build_test_table(
                 # TODO: only hash test parameter
                 row_anchor = md5sum(row_anchor)
 
+            doc = docstring(
+                getattr(getattr(module, class_name), test_name.split("[")[0])
+            )
             row = HTML.tr(
-                HTML.th(HTML.a(test_name, href=f"#{row_anchor}"), class_="test-name"),
+                HTML.th(
+                    HTML.details(
+                        HTML.summary(HTML.a(test_name, href=f"#{row_anchor}")),
+                        doc,
+                    )
+                    if doc
+                    else HTML.a(test_name, href=f"#{row_anchor}"),
+                    class_="test-name",
+                ),
                 id=row_anchor,
             )
             rows.append(row)

irctest/irc_utils/ambiguities.py

@@ -1,23 +0,0 @@
-"""
-Handles ambiguities of RFCs.
-"""
-
-from typing import List
-
-
-def normalize_namreply_params(params: List[str]) -> List[str]:
-    # So… RFC 2812 says:
-    #       "( "=" / "*" / "@" ) <channel>
-    #       :[ "@" / "+" ] <nick> *( " " [ "@" / "+" ] <nick> )
-    # but spaces seem to be missing (eg. before the colon), so we
-    # don't know if there should be one before the <channel> and its
-    # prefix.
-    # So let's normalize this to “with space”, and strip spaces at the
-    # end of the nick list.
-    params = list(params)  # copy the list
-    if len(params) == 3:
-        assert params[1][0] in "=*@", params
-        params.insert(1, params[1][0])
-        params[2] = params[2][1:]
-    params[3] = params[3].rstrip()
-    return params

irctest/irc_utils/filelock.py

@@ -0,0 +1,18 @@
+"""
+Compatibility layer for filelock ( https://pypi.org/project/filelock/ );
+commonly packaged by Linux distributions but might not be available
+in some environments.
+"""
+
+import contextlib
+import os
+from typing import Any, ContextManager
+
+if os.getenv("PYTEST_XDIST_WORKER"):
+    # running under pytest-xdist; filelock is required for reliability
+    from filelock import FileLock
+else:
+    # normal test execution, no port races
+
+    def FileLock(*args: Any, **kwargs: Any) -> ContextManager[None]:
+        return contextlib.nullcontext()

irctest/irc_utils/junkdrawer.py

@@ -13,7 +13,7 @@ def ircv3_timestamp_to_unixtime(timestamp: str) -> float:
 
 
 def random_name(base: str) -> str:
-    return base + "-" + secrets.token_hex(8)
+    return base + "-" + secrets.token_hex(5)
 
 
 def find_hostname_and_port() -> Tuple[str, int]:

irctest/irc_utils/message_parser.py

@@ -15,7 +15,7 @@ TAG_ESCAPE = [
 unescape_tag_value = MultipleReplacer(dict(map(lambda x: (x[1], x[0]), TAG_ESCAPE)))
 
 # TODO: validate host
-tag_key_validator = re.compile(r"\+?(\S+/)?[a-zA-Z0-9-]+")
+tag_key_validator = re.compile(r"^\+?(\S+/)?[a-zA-Z0-9-]+$")
 
 
 def parse_tags(s: str) -> Dict[str, Optional[str]]:

irctest/patma.py

@@ -1,6 +1,7 @@
 """Pattern-matching utilities"""
 
 import dataclasses
+import itertools
 import re
 from typing import Dict, List, Optional, Union
 
@@ -27,6 +28,14 @@ class _AnyOptStr(Operator):
         return "ANYOPTSTR"
 
 
+@dataclasses.dataclass(frozen=True)
+class OptStrRe(Operator):
+    regexp: str
+
+    def __repr__(self) -> str:
+        return f"OptStrRe(r'{self.regexp}')"
+
+
 @dataclasses.dataclass(frozen=True)
 class StrRe(Operator):
     regexp: str
@@ -97,10 +106,15 @@ def match_string(got: Optional[str], expected: Union[str, Operator, None]) -> bo
     elif isinstance(expected, _AnyStr) and got is not None:
         return True
     elif isinstance(expected, StrRe):
-        if got is None or not re.match(expected.regexp, got):
+        if got is None or not re.match(expected.regexp + "$", got):
+            return False
+    elif isinstance(expected, OptStrRe):
+        if got is None:
+            return True
+        if not re.match(expected.regexp + "$", got):
             return False
     elif isinstance(expected, NotStrRe):
-        if got is None or re.match(expected.regexp, got):
+        if got is None or re.match(expected.regexp + "$", got):
             return False
     elif isinstance(expected, InsensitiveStr):
         if got is None or got.lower() != expected.string.lower():
@@ -128,11 +142,19 @@ def match_list(
         nb_remaining_items = len(got) - len(expected)
         expected += [remainder.item] * max(nb_remaining_items, remainder.min_length)
 
-    if len(got) != len(expected):
+    nb_optionals = 0
+    for expected_value in expected:
+        if isinstance(expected_value, (_AnyOptStr, OptStrRe)):
+            nb_optionals += 1
+        else:
+            if nb_optionals > 0:
+                raise NotImplementedError("Optional values in non-final position")
+
+    if not (len(expected) - nb_optionals <= len(got) <= len(expected)):
         return False
     return all(
         match_string(got_value, expected_value)
-        for (got_value, expected_value) in zip(got, expected)
+        for (got_value, expected_value) in itertools.zip_longest(got, expected)
     )
 
 

irctest/self_tests/cases.py

@@ -13,6 +13,7 @@ from irctest.patma import (
     ANYSTR,
     ListRemainder,
     NotStrRe,
+    OptStrRe,
     RemainingKeys,
     StrRe,
 )
@@ -172,7 +173,7 @@ MESSAGE_SPECS: List[Tuple[Dict, List[str], List[str], List[str]]] = [
         ],
         # and they each error with:
         [
-            "expected command to be PRIVMSG, got PRIVMG",
+            "expected command to match PRIVMSG, got PRIVMG",
             "expected tags to match {'tag1': 'bar', RemainingKeys(ANYSTR): ANYOPTSTR}, got {'tag1': 'value1'}",
             "expected params to match ['#chan', 'hello'], got ['#chan', 'hello2']",
             "expected params to match ['#chan', 'hello'], got ['#chan2', 'hello']",
@@ -205,7 +206,7 @@ MESSAGE_SPECS: List[Tuple[Dict, List[str], List[str], List[str]]] = [
         ],
         # and they each error with:
         [
-            "expected command to be PRIVMSG, got PRIVMG",
+            "expected command to match PRIVMSG, got PRIVMG",
             "expected tags to match {StrRe(r'tag[12]'): 'bar', RemainingKeys(ANYSTR): ANYOPTSTR}, got {'tag1': 'value1'}",
             "expected params to match ['#chan', 'hello'], got ['#chan', 'hello2']",
             "expected params to match ['#chan', 'hello'], got ['#chan2', 'hello']",
@@ -234,12 +235,34 @@ MESSAGE_SPECS: List[Tuple[Dict, List[str], List[str], List[str]]] = [
         ],
         # and they each error with:
         [
-            "expected command to be PRIVMSG, got PRIVMG",
+            "expected command to match PRIVMSG, got PRIVMG",
             "expected tags to match {'tag1': 'bar', RemainingKeys(NotStrRe(r'tag2')): ANYOPTSTR}, got {'tag1': 'value1'}",
             "expected tags to match {'tag1': 'bar', RemainingKeys(NotStrRe(r'tag2')): ANYOPTSTR}, got {'tag1': 'bar', 'tag2': ''}",
             "expected tags to match {'tag1': 'bar', RemainingKeys(NotStrRe(r'tag2')): ANYOPTSTR}, got {'tag1': 'bar', 'tag2': 'baz'}",
         ]
     ),
+    (
+        # the specification:
+        dict(
+            command="004",
+            params=["nick", "...", OptStrRe("[a-zA-Z]+")],
+        ),
+        # matches:
+        [
+            "004 nick ... abc",
+            "004 nick ...",
+        ],
+        # and does not match:
+        [
+            "004 nick ... 123",
+            "004 nick ... :",
+        ],
+        # and they each error with:
+        [
+            "expected params to match ['nick', '...', OptStrRe(r'[a-zA-Z]+')], got ['nick', '...', '123']",
+            "expected params to match ['nick', '...', OptStrRe(r'[a-zA-Z]+')], got ['nick', '...', '']",
+        ]
+    ),
     (
         # the specification:
         dict(
@@ -322,7 +345,7 @@ MESSAGE_SPECS: List[Tuple[Dict, List[str], List[str], List[str]]] = [
         ],
         # and they each error with:
         [
-            "expected command to be PING, got PONG"
+            "expected command to match PING, got PONG"
         ]
     ),
 ]

irctest/server_tests/account_registration.py

@@ -9,15 +9,75 @@ from irctest.patma import ANYSTR
 REGISTER_CAP_NAME = "draft/account-registration"
 
 
+@cases.mark_services
+@cases.mark_specifications("IRCv3")
+class RegisterTestCase(cases.BaseServerTestCase):
+    def testRegisterDefaultName(self):
+        """
+        "If <account> is *, then this value is the user’s current nickname."
+        """
+        self.connectClient(
+            "bar", name="bar", capabilities=[REGISTER_CAP_NAME], skip_if_cap_nak=True
+        )
+        self.sendLine("bar", "CAP LS 302")
+        caps = self.getCapLs("bar")
+        self.assertIn(REGISTER_CAP_NAME, caps)
+        self.assertNotIn("email-required", (caps[REGISTER_CAP_NAME] or "").split(","))
+        self.sendLine("bar", "REGISTER * * shivarampassphrase")
+        msgs = self.getMessages("bar")
+        register_response = [msg for msg in msgs if msg.command == "REGISTER"][0]
+        self.assertMessageMatch(register_response, params=["SUCCESS", ANYSTR, ANYSTR])
+
+    def testRegisterSameName(self):
+        """
+        Requested account name is the same as the nick
+        """
+        self.connectClient(
+            "bar", name="bar", capabilities=[REGISTER_CAP_NAME], skip_if_cap_nak=True
+        )
+        self.sendLine("bar", "CAP LS 302")
+        caps = self.getCapLs("bar")
+        self.assertIn(REGISTER_CAP_NAME, caps)
+        self.assertNotIn("email-required", (caps[REGISTER_CAP_NAME] or "").split(","))
+        self.sendLine("bar", "REGISTER bar * shivarampassphrase")
+        msgs = self.getMessages("bar")
+        register_response = [msg for msg in msgs if msg.command == "REGISTER"][0]
+        self.assertMessageMatch(register_response, params=["SUCCESS", ANYSTR, ANYSTR])
+
+    def testRegisterDifferentName(self):
+        """
+        Requested account name differs from the nick
+        """
+        self.connectClient(
+            "bar", name="bar", capabilities=[REGISTER_CAP_NAME], skip_if_cap_nak=True
+        )
+        self.sendLine("bar", "CAP LS 302")
+        caps = self.getCapLs("bar")
+        self.assertIn(REGISTER_CAP_NAME, caps)
+        self.assertNotIn("email-required", (caps[REGISTER_CAP_NAME] or "").split(","))
+        self.sendLine("bar", "REGISTER foo * shivarampassphrase")
+        if "custom-account-name" in (caps[REGISTER_CAP_NAME] or "").split(","):
+            msgs = self.getMessages("bar")
+            register_response = [msg for msg in msgs if msg.command == "REGISTER"][0]
+            self.assertMessageMatch(
+                register_response, params=["SUCCESS", ANYSTR, ANYSTR]
+            )
+        else:
+            self.assertMessageMatch(
+                self.getMessage("bar"),
+                command="FAIL",
+                params=["REGISTER", "ACCOUNT_NAME_MUST_BE_NICK", "foo", ANYSTR],
+            )
+
+
 @cases.mark_services
 @cases.mark_specifications("IRCv3")
 class RegisterBeforeConnectTestCase(cases.BaseServerTestCase):
     @staticmethod
     def config() -> cases.TestCaseControllerConfig:
         return cases.TestCaseControllerConfig(
-            ergo_config=lambda config: config["accounts"]["registration"].update(
-                {"allow-before-connect": True}
-            )
+            account_registration_requires_email=False,
+            account_registration_before_connect=True,
         )
 
     def testBeforeConnect(self):
@@ -26,7 +86,7 @@ class RegisterBeforeConnectTestCase(cases.BaseServerTestCase):
         self.sendLine("bar", "CAP LS 302")
         caps = self.getCapLs("bar")
         self.assertIn(REGISTER_CAP_NAME, caps)
-        self.assertIn("before-connect", caps[REGISTER_CAP_NAME])
+        self.assertIn("before-connect", caps[REGISTER_CAP_NAME] or "")
         self.sendLine("bar", "NICK bar")
         self.sendLine("bar", "REGISTER * * shivarampassphrase")
         msgs = self.getMessages("bar")
@@ -40,9 +100,8 @@ class RegisterBeforeConnectDisallowedTestCase(cases.BaseServerTestCase):
     @staticmethod
     def config() -> cases.TestCaseControllerConfig:
         return cases.TestCaseControllerConfig(
-            ergo_config=lambda config: config["accounts"]["registration"].update(
-                {"allow-before-connect": False}
-            )
+            account_registration_requires_email=False,
+            account_registration_before_connect=False,
         )
 
     def testBeforeConnect(self):
@@ -51,7 +110,7 @@ class RegisterBeforeConnectDisallowedTestCase(cases.BaseServerTestCase):
         self.sendLine("bar", "CAP LS 302")
         caps = self.getCapLs("bar")
         self.assertIn(REGISTER_CAP_NAME, caps)
-        self.assertEqual(caps[REGISTER_CAP_NAME], None)
+        self.assertNotIn("before-connect", caps[REGISTER_CAP_NAME] or "")
         self.sendLine("bar", "NICK bar")
         self.sendLine("bar", "REGISTER * * shivarampassphrase")
         msgs = self.getMessages("bar")
@@ -64,21 +123,12 @@ class RegisterBeforeConnectDisallowedTestCase(cases.BaseServerTestCase):
 
 @cases.mark_services
 @cases.mark_specifications("IRCv3")
-class RegisterEmailVerifiedTestCase(cases.BaseServerTestCase):
+class RegisterEmailVerifiedBeforeConnectTestCase(cases.BaseServerTestCase):
     @staticmethod
     def config() -> cases.TestCaseControllerConfig:
         return cases.TestCaseControllerConfig(
-            ergo_config=lambda config: config["accounts"]["registration"].update(
-                {
-                    "email-verification": {
-                        "enabled": True,
-                        "sender": "test@example.com",
-                        "require-tls": True,
-                        "helo-domain": "example.com",
-                    },
-                    "allow-before-connect": True,
-                }
-            )
+            account_registration_requires_email=True,
+            account_registration_before_connect=True,
         )
 
     def testBeforeConnect(self):
@@ -89,10 +139,8 @@ class RegisterEmailVerifiedTestCase(cases.BaseServerTestCase):
         self.sendLine("bar", "CAP LS 302")
         caps = self.getCapLs("bar")
         self.assertIn(REGISTER_CAP_NAME, caps)
-        self.assertEqual(
-            set(caps[REGISTER_CAP_NAME].split(",")),
-            {"before-connect", "email-required"},
-        )
+        self.assertIn("email-required", caps[REGISTER_CAP_NAME] or "")
+        self.assertIn("before-connect", caps[REGISTER_CAP_NAME] or "")
         self.sendLine("bar", "NICK bar")
         self.sendLine("bar", "REGISTER * * shivarampassphrase")
         msgs = self.getMessages("bar")
@@ -101,10 +149,25 @@ class RegisterEmailVerifiedTestCase(cases.BaseServerTestCase):
             fail_response, params=["REGISTER", "INVALID_EMAIL", ANYSTR, ANYSTR]
         )
 
+
+@cases.mark_services
+@cases.mark_specifications("IRCv3")
+class RegisterEmailVerifiedAfterConnectTestCase(cases.BaseServerTestCase):
+    @staticmethod
+    def config() -> cases.TestCaseControllerConfig:
+        return cases.TestCaseControllerConfig(
+            account_registration_before_connect=False,
+            account_registration_requires_email=True,
+        )
+
     def testAfterConnect(self):
         self.connectClient(
             "bar", name="bar", capabilities=[REGISTER_CAP_NAME], skip_if_cap_nak=True
         )
+        self.sendLine("bar", "CAP LS 302")
+        caps = self.getCapLs("bar")
+        self.assertIn(REGISTER_CAP_NAME, caps)
+        self.assertIn("email-required", caps[REGISTER_CAP_NAME] or "")
         self.sendLine("bar", "REGISTER * * shivarampassphrase")
         msgs = self.getMessages("bar")
         fail_response = [msg for msg in msgs if msg.command == "FAIL"][0]
@@ -119,9 +182,8 @@ class RegisterNoLandGrabsTestCase(cases.BaseServerTestCase):
     @staticmethod
     def config() -> cases.TestCaseControllerConfig:
         return cases.TestCaseControllerConfig(
-            ergo_config=lambda config: config["accounts"]["registration"].update(
-                {"allow-before-connect": True}
-            )
+            account_registration_requires_email=False,
+            account_registration_before_connect=True,
         )
 
     def testBeforeConnect(self):

irctest/server_tests/away.py

@@ -11,13 +11,14 @@ from irctest.numerics import (
     RPL_USERHOST,
     RPL_WHOISUSER,
 )
-from irctest.patma import StrRe
+from irctest.patma import ANYSTR, StrRe
 
 
 class AwayTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("RFC2812", "Modern")
     def testAway(self):
         self.connectClient("bar")
+        self.getMessages(1)
         self.sendLine(1, "AWAY :I'm not here right now")
         replies = self.getMessages(1)
         self.assertIn(RPL_NOWAWAY, [msg.command for msg in replies])
@@ -29,6 +30,7 @@ class AwayTestCase(cases.BaseServerTestCase):
             command=RPL_AWAY,
             params=["qux", "bar", "I'm not here right now"],
         )
+        self.getMessages(1)
 
         self.sendLine(1, "AWAY")
         replies = self.getMessages(1)
@@ -47,12 +49,16 @@ class AwayTestCase(cases.BaseServerTestCase):
         """
         self.connectClient("bar")
         self.sendLine(1, "AWAY :I'm not here right now")
-        replies = self.getMessages(1)
-        self.assertIn(RPL_NOWAWAY, [msg.command for msg in replies])
+        self.assertMessageMatch(
+            self.getMessage(1), command=RPL_NOWAWAY, params=["bar", ANYSTR]
+        )
+        self.assertEqual(self.getMessages(1), [])
 
         self.sendLine(1, "AWAY")
-        replies = self.getMessages(1)
-        self.assertIn(RPL_UNAWAY, [msg.command for msg in replies])
+        self.assertMessageMatch(
+            self.getMessage(1), command=RPL_UNAWAY, params=["bar", ANYSTR]
+        )
+        self.assertEqual(self.getMessages(1), [])
 
     @cases.mark_specifications("Modern")
     def testAwayPrivmsg(self):

irctest/server_tests/away_notify.py

@@ -3,6 +3,8 @@
 """
 
 from irctest import cases
+from irctest.numerics import RPL_NOWAWAY, RPL_UNAWAY
+from irctest.patma import ANYSTR, StrRe
 
 
 class AwayNotifyTestCase(cases.BaseServerTestCase):
@@ -20,13 +22,28 @@ class AwayNotifyTestCase(cases.BaseServerTestCase):
         self.getMessages(1)
 
         self.sendLine(2, "AWAY :i'm going away")
-        self.getMessages(2)
+        self.assertMessageMatch(
+            self.getMessage(2), command=RPL_NOWAWAY, params=["bar", ANYSTR]
+        )
+        self.assertEqual(self.getMessages(2), [])
 
         awayNotify = self.getMessage(1)
-        self.assertMessageMatch(awayNotify, command="AWAY", params=["i'm going away"])
-        self.assertTrue(
-            awayNotify.prefix.startswith("bar!"),
-            "Unexpected away-notify source: %s" % (awayNotify.prefix,),
+        self.assertMessageMatch(
+            awayNotify,
+            prefix=StrRe("bar!.*"),
+            command="AWAY",
+            params=["i'm going away"],
+        )
+
+        self.sendLine(2, "AWAY")
+        self.assertMessageMatch(
+            self.getMessage(2), command=RPL_UNAWAY, params=["bar", ANYSTR]
+        )
+        self.assertEqual(self.getMessages(2), [])
+
+        awayNotify = self.getMessage(1)
+        self.assertMessageMatch(
+            awayNotify, prefix=StrRe("bar!.*"), command="AWAY", params=[]
         )
 
     @cases.mark_capabilities("away-notify")
@@ -45,7 +62,11 @@ class AwayNotifyTestCase(cases.BaseServerTestCase):
         self.getMessages(2)
 
         self.joinChannel(2, "#chan")
-        self.getMessages(2)
+        self.assertNotIn(
+            "AWAY",
+            [m.command for m in self.getMessages(2)],
+            "joining user got their own away status when they joined",
+        )
 
         messages = [msg for msg in self.getMessages(1) if msg.command == "AWAY"]
         self.assertEqual(

irctest/server_tests/buffering.py

@@ -86,10 +86,10 @@ class BufferingTestCase(cases.BaseServerTestCase):
             if messages and ERR_INPUTTOOLONG in (m.command for m in messages):
                 # https://defs.ircdocs.horse/defs/numerics.html#err-inputtoolong-417
                 self.assertGreater(
-                    len(line + payload + "\r\n"),
+                    len((line + payload + "\r\n").encode()),
                     512 - overhead,
-                    "Got ERR_INPUTTOOLONG for a messag that should fit "
-                    "withing 512 characters.",
+                    "Got ERR_INPUTTOOLONG for a message that should fit "
+                    "within 512 characters.",
                 )
                 continue
 
@@ -125,11 +125,24 @@ class BufferingTestCase(cases.BaseServerTestCase):
                     f"expected payload to be a prefix of {payload!r}, "
                     f"but got {payload!r}",
                 )
+            if self.controller.software_name == "Ergo":
+                self.assertTrue(
+                    payload_intact,
+                    f"Ergo should not truncate messages: {repr(line + payload)}, {repr(received_line)}",
+                )
 
     def get_overhead(self, client1, client2, colon):
-        self.sendLine(client1, f"PRIVMSG nick2 {colon}a\r\n")
+        """Compute the overhead added to client1's message:
+                          PRIVMSG nick2 a\r\n
+        :nick1!~user@host PRIVMSG nick2 :a\r\n
+        So typically client1's NUH length plus either 2 or 3 bytes
+        (the initial colon, the space between source and command, and possibly
+        a colon preceding the trailing).
+        """
+        outgoing = f"PRIVMSG nick2 {colon}a\r\n"
+        self.sendLine(client1, outgoing)
         line = self._getLine(client2)
-        return len(line) - len(f"PRIVMSG nick2 {colon}a\r\n")
+        return len(line) - len(outgoing.encode())
 
     def _getLine(self, client) -> bytes:
         line = b""

irctest/server_tests/cap.py

@@ -90,7 +90,7 @@ class CapTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("IRCv3")
     @cases.xfailIfSoftware(
         ["ngIRCd"],
-        "ngIRCd does not support userhost-in-names",
+        "does not support userhost-in-names",
     )
     def testReqTwo(self):
         """Tests requesting two capabilities at once"""
@@ -132,7 +132,7 @@ class CapTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("IRCv3")
     @cases.xfailIfSoftware(
         ["ngIRCd"],
-        "ngIRCd does not support userhost-in-names",
+        "does not support userhost-in-names",
     )
     def testReqOneThenOne(self):
         """Tests requesting two capabilities in different messages"""
@@ -184,7 +184,7 @@ class CapTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("IRCv3")
     @cases.xfailIfSoftware(
         ["ngIRCd"],
-        "ngIRCd does not support userhost-in-names",
+        "does not support userhost-in-names",
     )
     def testReqPostRegistration(self):
         """Tests requesting more capabilities after CAP END"""
@@ -300,7 +300,8 @@ class CapTestCase(cases.BaseServerTestCase):
         """  # noqa
         self.addClient(1)
         self.sendLine(1, "CAP LS 302")
-        self.assertIn("multi-prefix", self.getCapLs(1))
+        if "multi-prefix" not in self.getCapLs(1):
+            raise CapabilityNotSupported("multi-prefix")
         self.sendLine(1, "CAP REQ :foo multi-prefix bar")
         m = self.getRegistrationMessage(1)
         self.assertMessageMatch(

irctest/server_tests/chathistory.py

@@ -46,7 +46,7 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
         result = []
         for msg in inner_msgs:
             if (
-                msg.command == "PRIVMSG"
+                msg.command in ("PRIVMSG", "TOPIC")
                 and batch_tag is not None
                 and msg.tags.get("batch") == batch_tag
             ):
@@ -58,6 +58,16 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
     def config() -> cases.TestCaseControllerConfig:
         return cases.TestCaseControllerConfig(chathistory=True)
 
+    def _supports_msgid(self):
+        return "msgid" in self.server_support.get(
+            "MSGREFTYPES", "msgid,timestamp"
+        ).split(",")
+
+    def _supports_timestamp(self):
+        return "timestamp" in self.server_support.get(
+            "MSGREFTYPES", "msgid,timestamp"
+        ).split(",")
+
     @skip_ngircd
     def testInvalidTargets(self):
         bar, pw = random_name("bar"), random_name("pw")
@@ -220,6 +230,47 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
         self.validate_echo_messages(NUM_MESSAGES, echo_messages)
         self.validate_chathistory(subcommand, echo_messages, 1, chname)
 
+    @skip_ngircd
+    def testChathistoryNoEventPlayback(self):
+        """Tests that non-messages don't appear in the chat history when event-playback
+        is not enabled."""
+
+        self.connectClient(
+            "bar",
+            capabilities=[
+                "message-tags",
+                "server-time",
+                "echo-message",
+                "batch",
+                "labeled-response",
+                "sasl",
+                CHATHISTORY_CAP,
+            ],
+            skip_if_cap_nak=True,
+        )
+        chname = "#chan" + secrets.token_hex(12)
+        self.joinChannel(1, chname)
+        self.getMessages(1)
+        self.getMessages(1)
+
+        NUM_MESSAGES = 10
+        echo_messages = []
+        for i in range(NUM_MESSAGES):
+            self.sendLine(1, "TOPIC %s :this is topic %d" % (chname, i))
+            self.getMessages(1)
+            self.sendLine(1, "PRIVMSG %s :this is message %d" % (chname, i))
+            echo_messages.extend(
+                msg.to_history_message() for msg in self.getMessages(1)
+            )
+            time.sleep(0.002)
+
+        self.validate_echo_messages(NUM_MESSAGES, echo_messages)
+        self.sendLine(1, "CHATHISTORY LATEST %s * 100" % chname)
+        (batch_open, *messages, batch_close) = self.getMessages(1)
+        self.assertMessageMatch(batch_open, command="BATCH")
+        self.assertMessageMatch(batch_close, command="BATCH")
+        self.assertEqual([msg for msg in messages if msg.command != "PRIVMSG"], [])
+
     @pytest.mark.parametrize("subcommand", SUBCOMMANDS)
     @skip_ngircd
     def testChathistoryEventPlayback(self, subcommand):
@@ -244,21 +295,27 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
         NUM_MESSAGES = 10
         echo_messages = []
         for i in range(NUM_MESSAGES):
+            self.sendLine(1, "TOPIC %s :this is topic %d" % (chname, i))
+            echo_messages.extend(
+                msg.to_history_message() for msg in self.getMessages(1)
+            )
+            time.sleep(0.002)
+
             self.sendLine(1, "PRIVMSG %s :this is message %d" % (chname, i))
             echo_messages.extend(
                 msg.to_history_message() for msg in self.getMessages(1)
             )
             time.sleep(0.002)
 
-        self.validate_echo_messages(NUM_MESSAGES, echo_messages)
+        self.validate_echo_messages(NUM_MESSAGES * 2, echo_messages)
         self.validate_chathistory(subcommand, echo_messages, 1, chname)
 
     @pytest.mark.parametrize("subcommand", SUBCOMMANDS)
     @pytest.mark.private_chathistory
     @skip_ngircd
     def testChathistoryDMs(self, subcommand):
-        c1 = "foo" + secrets.token_hex(12)
-        c2 = "bar" + secrets.token_hex(12)
+        c1 = random_name("foo")
+        c2 = random_name("bar")
         self.controller.registerUser(self, c1, "sesame1")
         self.controller.registerUser(self, c2, "sesame2")
         self.connectClient(
@@ -313,7 +370,7 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
         self.validate_chathistory(subcommand, echo_messages, 1, c2)
         self.validate_chathistory(subcommand, echo_messages, 2, c1)
 
-        c3 = "baz" + secrets.token_hex(12)
+        c3 = random_name("baz")
         self.connectClient(
             c3,
             capabilities=[
@@ -413,178 +470,201 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
         result = self.validate_chathistory_batch(self.getMessages(user), chname)
         self.assertEqual(echo_messages[-1:], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY LATEST %s msgid=%s %d"
-            % (chname, echo_messages[4].msgid, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[5:], result)
+        if self._supports_msgid():
+            self.sendLine(
+                user,
+                "CHATHISTORY LATEST %s msgid=%s %d"
+                % (chname, echo_messages[4].msgid, INCLUSIVE_LIMIT),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[5:], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY LATEST %s timestamp=%s %d"
-            % (chname, echo_messages[4].time, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[5:], result)
+        if self._supports_timestamp():
+            self.sendLine(
+                user,
+                "CHATHISTORY LATEST %s timestamp=%s %d"
+                % (chname, echo_messages[4].time, INCLUSIVE_LIMIT),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[5:], result)
 
     def _validate_chathistory_BEFORE(self, echo_messages, user, chname):
         INCLUSIVE_LIMIT = len(echo_messages) * 2
-        self.sendLine(
-            user,
-            "CHATHISTORY BEFORE %s msgid=%s %d"
-            % (chname, echo_messages[6].msgid, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[:6], result)
+        if self._supports_msgid():
+            self.sendLine(
+                user,
+                "CHATHISTORY BEFORE %s msgid=%s %d"
+                % (chname, echo_messages[6].msgid, INCLUSIVE_LIMIT),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[:6], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY BEFORE %s timestamp=%s %d"
-            % (chname, echo_messages[6].time, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[:6], result)
+        if self._supports_timestamp():
+            self.sendLine(
+                user,
+                "CHATHISTORY BEFORE %s timestamp=%s %d"
+                % (chname, echo_messages[6].time, INCLUSIVE_LIMIT),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[:6], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY BEFORE %s timestamp=%s %d"
-            % (chname, echo_messages[6].time, 2),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[4:6], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY BEFORE %s timestamp=%s %d"
+                % (chname, echo_messages[6].time, 2),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[4:6], result)
 
     def _validate_chathistory_AFTER(self, echo_messages, user, chname):
         INCLUSIVE_LIMIT = len(echo_messages) * 2
-        self.sendLine(
-            user,
-            "CHATHISTORY AFTER %s msgid=%s %d"
-            % (chname, echo_messages[3].msgid, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[4:], result)
+        if self._supports_msgid():
+            self.sendLine(
+                user,
+                "CHATHISTORY AFTER %s msgid=%s %d"
+                % (chname, echo_messages[3].msgid, INCLUSIVE_LIMIT),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[4:], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY AFTER %s timestamp=%s %d"
-            % (chname, echo_messages[3].time, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[4:], result)
+        if self._supports_timestamp():
+            self.sendLine(
+                user,
+                "CHATHISTORY AFTER %s timestamp=%s %d"
+                % (chname, echo_messages[3].time, INCLUSIVE_LIMIT),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[4:], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY AFTER %s timestamp=%s %d" % (chname, echo_messages[3].time, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[4:7], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY AFTER %s timestamp=%s %d"
+                % (chname, echo_messages[3].time, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[4:7], result)
 
     def _validate_chathistory_BETWEEN(self, echo_messages, user, chname):
         INCLUSIVE_LIMIT = len(echo_messages) * 2
-        # BETWEEN forwards and backwards
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
-            % (
-                chname,
-                echo_messages[0].msgid,
-                echo_messages[-1].msgid,
-                INCLUSIVE_LIMIT,
-            ),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[1:-1], result)
+        if self._supports_msgid():
+            # BETWEEN forwards and backwards
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
+                % (
+                    chname,
+                    echo_messages[0].msgid,
+                    echo_messages[-1].msgid,
+                    INCLUSIVE_LIMIT,
+                ),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[1:-1], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
-            % (
-                chname,
-                echo_messages[-1].msgid,
-                echo_messages[0].msgid,
-                INCLUSIVE_LIMIT,
-            ),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[1:-1], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
+                % (
+                    chname,
+                    echo_messages[-1].msgid,
+                    echo_messages[0].msgid,
+                    INCLUSIVE_LIMIT,
+                ),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[1:-1], result)
 
-        # BETWEEN forwards and backwards with a limit, should get
-        # different results this time
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
-            % (chname, echo_messages[0].msgid, echo_messages[-1].msgid, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[1:4], result)
+            # BETWEEN forwards and backwards with a limit, should get
+            # different results this time
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
+                % (chname, echo_messages[0].msgid, echo_messages[-1].msgid, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[1:4], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
-            % (chname, echo_messages[-1].msgid, echo_messages[0].msgid, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[-4:-1], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s msgid=%s msgid=%s %d"
+                % (chname, echo_messages[-1].msgid, echo_messages[0].msgid, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[-4:-1], result)
 
-        # same stuff again but with timestamps
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
-            % (chname, echo_messages[0].time, echo_messages[-1].time, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[1:-1], result)
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
-            % (chname, echo_messages[-1].time, echo_messages[0].time, INCLUSIVE_LIMIT),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[1:-1], result)
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
-            % (chname, echo_messages[0].time, echo_messages[-1].time, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[1:4], result)
-        self.sendLine(
-            user,
-            "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
-            % (chname, echo_messages[-1].time, echo_messages[0].time, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[-4:-1], result)
+        if self._supports_timestamp():
+            # same stuff again but with timestamps
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
+                % (
+                    chname,
+                    echo_messages[0].time,
+                    echo_messages[-1].time,
+                    INCLUSIVE_LIMIT,
+                ),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[1:-1], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
+                % (
+                    chname,
+                    echo_messages[-1].time,
+                    echo_messages[0].time,
+                    INCLUSIVE_LIMIT,
+                ),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[1:-1], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
+                % (chname, echo_messages[0].time, echo_messages[-1].time, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[1:4], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY BETWEEN %s timestamp=%s timestamp=%s %d"
+                % (chname, echo_messages[-1].time, echo_messages[0].time, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[-4:-1], result)
 
     def _validate_chathistory_AROUND(self, echo_messages, user, chname):
-        self.sendLine(
-            user,
-            "CHATHISTORY AROUND %s msgid=%s %d" % (chname, echo_messages[7].msgid, 1),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual([echo_messages[7]], result)
+        if self._supports_msgid():
+            self.sendLine(
+                user,
+                "CHATHISTORY AROUND %s msgid=%s %d"
+                % (chname, echo_messages[7].msgid, 1),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual([echo_messages[7]], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY AROUND %s msgid=%s %d" % (chname, echo_messages[7].msgid, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertEqual(echo_messages[6:9], result)
+            self.sendLine(
+                user,
+                "CHATHISTORY AROUND %s msgid=%s %d"
+                % (chname, echo_messages[7].msgid, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertEqual(echo_messages[6:9], result)
 
-        self.sendLine(
-            user,
-            "CHATHISTORY AROUND %s timestamp=%s %d"
-            % (chname, echo_messages[7].time, 3),
-        )
-        result = self.validate_chathistory_batch(self.getMessages(user), chname)
-        self.assertIn(echo_messages[7], result)
+        if self._supports_timestamp():
+            self.sendLine(
+                user,
+                "CHATHISTORY AROUND %s timestamp=%s %d"
+                % (chname, echo_messages[7].time, 3),
+            )
+            result = self.validate_chathistory_batch(self.getMessages(user), chname)
+            self.assertIn(echo_messages[7], result)
 
     @pytest.mark.arbitrary_client_tags
     @skip_ngircd
     def testChathistoryTagmsg(self):
-        c1 = "foo" + secrets.token_hex(12)
-        c2 = "bar" + secrets.token_hex(12)
+        c1 = random_name("foo")
+        c2 = random_name("bar")
         chname = "#chan" + secrets.token_hex(12)
         self.controller.registerUser(self, c1, "sesame1")
         self.controller.registerUser(self, c2, "sesame2")
@@ -683,8 +763,8 @@ class ChathistoryTestCase(cases.BaseServerTestCase):
     @skip_ngircd
     def testChathistoryDMClientOnlyTags(self):
         # regression test for Ergo #1411
-        c1 = "foo" + secrets.token_hex(12)
-        c2 = "bar" + secrets.token_hex(12)
+        c1 = random_name("foo")
+        c2 = random_name("bar")
         self.controller.registerUser(self, c1, "sesame1")
         self.controller.registerUser(self, c2, "sesame2")
         self.connectClient(

irctest/server_tests/chmodes/ban.py

@@ -7,14 +7,18 @@ and ban exception (`Modern <https://modern.ircdocs.horse/#exception-channel-mode
 """
 
 from irctest import cases, runner
-from irctest.numerics import ERR_BANNEDFROMCHAN, RPL_BANLIST, RPL_ENDOFBANLIST
+from irctest.numerics import (
+    ERR_BANNEDFROMCHAN,
+    ERR_CANNOTSENDTOCHAN,
+    RPL_BANLIST,
+    RPL_ENDOFBANLIST,
+)
 from irctest.patma import ANYSTR, StrRe
 
 
 class BanModeTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("RFC1459", "RFC2812", "Modern")
-    def testBan(self):
-        """Basic ban operation"""
+    def testBanJoin(self):
         self.connectClient("chanop", name="chanop")
         self.joinChannel("chanop", "#chan")
         self.getMessages("chanop")
@@ -32,6 +36,55 @@ class BanModeTestCase(cases.BaseServerTestCase):
         self.sendLine("bar", "JOIN #chan")
         self.assertMessageMatch(self.getMessage("bar"), command="JOIN")
 
+    @cases.mark_specifications("Modern")
+    def testBanPrivmsg(self):
+        """
+        TODO: this checks the following quote is false:
+
+        "If `<target>` is a channel name and the client is [banned](#ban-channel-mode)
+        and not covered by a [ban exception](#ban-exception-channel-mode), the
+        message will not be delivered and the command will silently fail."
+        -- https://modern.ircdocs.horse/#privmsg-message
+
+        to check https://github.com/ircdocs/modern-irc/pull/201
+        """
+        self.connectClient("chanop", name="chanop")
+        self.joinChannel("chanop", "#chan")
+        self.getMessages("chanop")
+
+        self.connectClient("Bar", name="bar")
+        self.getMessages("bar")
+        self.sendLine("bar", "JOIN #chan")
+        self.getMessages("bar")
+        self.getMessages("chanop")
+
+        self.sendLine("chanop", "MODE #chan +b bar!*@*")
+        self.assertMessageMatch(self.getMessage("chanop"), command="MODE")
+        self.getMessages("chanop")
+        self.getMessages("bar")
+
+        self.sendLine("bar", "PRIVMSG #chan :hello world")
+        self.assertMessageMatch(
+            self.getMessage("bar"),
+            command=ERR_CANNOTSENDTOCHAN,
+            params=["Bar", "#chan", ANYSTR],
+        )
+        self.assertEqual(self.getMessages("bar"), [])
+        self.assertEqual(self.getMessages("chanop"), [])
+
+        self.sendLine("chanop", "MODE #chan -b bar!*@*")
+        self.assertMessageMatch(self.getMessage("chanop"), command="MODE")
+        self.getMessages("chanop")
+        self.getMessages("bar")
+
+        self.sendLine("bar", "PRIVMSG #chan :hello again")
+        self.assertEqual(self.getMessages("bar"), [])
+        self.assertMessageMatch(
+            self.getMessage("chanop"),
+            command="PRIVMSG",
+            params=["#chan", "hello again"],
+        )
+
     @cases.mark_specifications("Modern")
     def testBanList(self):
         """`RPL_BANLIST <https://modern.ircdocs.horse/#rplbanlist-367>`_"""

irctest/server_tests/chmodes/key.py

@@ -44,8 +44,8 @@ class KeyTestCase(cases.BaseServerTestCase):
 
     @pytest.mark.parametrize(
         "key",
-        ["passphrase with spaces", "long" * 100, ""],
-        ids=["spaces", "long", "empty"],
+        ["passphrase with spaces", "long" * 100, "", " "],
+        ids=["spaces", "long", "empty", "only-space"],
     )
     @cases.mark_specifications("RFC2812", "Modern")
     def testKeyValidation(self, key):
@@ -84,6 +84,8 @@ class KeyTestCase(cases.BaseServerTestCase):
                 "ngIRCd does not validate channel keys: "
                 "https://github.com/ngircd/ngircd/issues/290"
             )
+        if key == " " and self.controller.software_name == "irc2":
+            pytest.xfail("irc2 rewrites non-empty keys that contain only spaces")
 
         self.connectClient("bar")
         self.joinChannel(1, "#chan")

irctest/server_tests/chmodes/modeis.py

@@ -0,0 +1,67 @@
+from irctest import cases
+from irctest.numerics import RPL_CHANNELCREATED, RPL_CHANNELMODEIS
+from irctest.patma import ANYSTR, ListRemainder, StrRe
+
+
+class RplChannelModeIsTestCase(cases.BaseServerTestCase):
+    @cases.mark_specifications("Modern")
+    def testChannelModeIs(self):
+        """Test RPL_CHANNELMODEIS and RPL_CHANNELCREATED as responses to
+        `MODE #channel`:
+        <https://modern.ircdocs.horse/#rplcreationtime-329>
+        <https://modern.ircdocs.horse/#rplchannelmodeis-324>
+        """
+        expected_numerics = {RPL_CHANNELMODEIS, RPL_CHANNELCREATED}
+        if self.controller.software_name in ("irc2", "Sable"):
+            # irc2 and Sable don't use timestamps for conflict resolution,
+            # consequently they don't store the channel creation timestamp
+            # and don't send RPL_CHANNELCREATED
+            expected_numerics = {RPL_CHANNELMODEIS}
+
+        self.connectClient("chanop", name="chanop")
+        self.joinChannel("chanop", "#chan")
+        # i, n, and t are specified by RFC1459; some of them may be on by default,
+        # but after this, at least those three should be enabled:
+        self.sendLine("chanop", "MODE #chan +int")
+        self.getMessages("chanop")
+
+        self.sendLine("chanop", "MODE #chan")
+        messages = self.getMessages("chanop")
+        self.assertEqual(expected_numerics, {msg.command for msg in messages})
+        for message in messages:
+            if message.command == RPL_CHANNELMODEIS:
+                # the final parameters are the mode string (e.g. `+int`),
+                # and then optionally any mode parameters (in case the ircd
+                # lists a mode that takes a parameter)
+                self.assertMessageMatch(
+                    message,
+                    command=RPL_CHANNELMODEIS,
+                    params=["chanop", "#chan", ListRemainder(ANYSTR, min_length=1)],
+                )
+                final_param = message.params[2]
+                self.assertEqual(final_param[0], "+")
+                enabled_modes = list(final_param[1:])
+                break
+
+        self.assertLessEqual({"i", "n", "t"}, set(enabled_modes))
+
+        # remove all the modes listed by RPL_CHANNELMODEIS
+        self.sendLine("chanop", f"MODE #chan -{''.join(enabled_modes)}")
+        response = self.getMessage("chanop")
+        # we should get something like: MODE #chan -int
+        self.assertMessageMatch(
+            response, command="MODE", params=["#chan", StrRe("^-.*")]
+        )
+        self.assertEqual(set(response.params[1][1:]), set(enabled_modes))
+
+        self.sendLine("chanop", "MODE #chan")
+        messages = self.getMessages("chanop")
+        self.assertEqual(expected_numerics, {msg.command for msg in messages})
+        # all modes have been disabled; the correct representation of this is `+`
+        for message in messages:
+            if message.command == RPL_CHANNELMODEIS:
+                self.assertMessageMatch(
+                    message,
+                    command=RPL_CHANNELMODEIS,
+                    params=["chanop", "#chan", "+"],
+                )

irctest/server_tests/chmodes/no_ctcp.py

@@ -0,0 +1,31 @@
+from irctest import cases
+from irctest.numerics import ERR_CANNOTSENDTOCHAN
+
+
+class NoCTCPChannelModeTestCase(cases.BaseServerTestCase):
+    @cases.mark_specifications("Ergo")
+    def testNoCTCPChannelMode(self):
+        """Test Ergo's +C channel mode that blocks CTCPs."""
+        self.connectClient("bar")
+        self.joinChannel(1, "#chan")
+        self.sendLine(1, "MODE #chan +C")
+        self.getMessages(1)
+
+        self.connectClient("qux")
+        self.joinChannel(2, "#chan")
+        self.getMessages(2)
+
+        self.sendLine(1, "PRIVMSG #chan :\x01ACTION hi\x01")
+        self.getMessages(1)
+        ms = self.getMessages(2)
+        self.assertEqual(len(ms), 1)
+        self.assertMessageMatch(
+            ms[0], command="PRIVMSG", params=["#chan", "\x01ACTION hi\x01"]
+        )
+
+        self.sendLine(1, "PRIVMSG #chan :\x01PING 1473523796 918320\x01")
+        ms = self.getMessages(1)
+        self.assertEqual(len(ms), 1)
+        self.assertMessageMatch(ms[0], command=ERR_CANNOTSENDTOCHAN)
+        ms = self.getMessages(2)
+        self.assertEqual(ms, [])

irctest/server_tests/chmodes/operator.py

@@ -0,0 +1,147 @@
+from irctest import cases
+from irctest.numerics import (
+    ERR_CHANOPRIVSNEEDED,
+    ERR_NOSUCHCHANNEL,
+    ERR_NOSUCHNICK,
+    ERR_NOTONCHANNEL,
+    ERR_USERNOTINCHANNEL,
+)
+
+
+class ChannelOperatorModeTestCase(cases.BaseServerTestCase):
+    """Test various error and success cases around the channel operator mode:
+    <https://modern.ircdocs.horse/#channel-operators>
+    <https://modern.ircdocs.horse/#mode-message>
+    """
+
+    def setupNicks(self):
+        """Set up a standard set of three nicknames and two channels
+        for testing channel-user MODE interactions."""
+        # first nick to join the channel is privileged:
+        self.connectClient("chanop", name="chanop")
+        self.joinChannel("chanop", "#chan")
+
+        self.connectClient("unprivileged", name="unprivileged")
+        self.joinChannel("unprivileged", "#chan")
+        self.getMessages("chanop")
+
+        self.connectClient("unrelated", name="unrelated")
+        self.joinChannel("unrelated", "#unrelated")
+        self.joinChannel("unprivileged", "#unrelated")
+        self.getMessages("unrelated")
+
+    @cases.mark_specifications("Modern")
+    @cases.xfailIfSoftware(["irc2"], "broken in irc2")
+    def testChannelOperatorModeSenderPrivsNeeded(self):
+        """Test that +o from a channel member without the necessary privileges
+        fails as expected."""
+        self.setupNicks()
+        # sender is a channel member but without the necessary privileges:
+        self.sendLine("unprivileged", "MODE #chan +o unprivileged")
+        messages = self.getMessages("unprivileged")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(messages[0], command=ERR_CHANOPRIVSNEEDED)
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeTargetNotInChannel(self):
+        """Test that +o targeting a user not present in the channel fails
+        as expected."""
+        self.setupNicks()
+        # sender is a chanop, but target nick is not in the channel:
+        self.sendLine("chanop", "MODE #chan +o unrelated")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(messages[0], command=ERR_USERNOTINCHANNEL)
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeTargetDoesNotExist(self):
+        """Test that +o targeting a nonexistent nick fails as expected."""
+        self.setupNicks()
+        # sender is a chanop, but target nick does not exist:
+        self.sendLine("chanop", "MODE #chan +o nobody")
+        messages = self.getMessages("chanop")
+        # ERR_NOSUCHNICK is typical, Bahamut additionally sends ERR_USERNOTINCHANNEL
+        if self.controller.software_name != "Bahamut":
+            self.assertEqual(len(messages), 1)
+            self.assertMessageMatch(messages[0], command=ERR_NOSUCHNICK)
+        else:
+            self.assertLessEqual(len(messages), 2)
+            commands = {message.command for message in messages}
+            self.assertLessEqual({ERR_NOSUCHNICK}, commands)
+            self.assertLessEqual(commands, {ERR_NOSUCHNICK, ERR_USERNOTINCHANNEL})
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeChannelDoesNotExist(self):
+        """Test that +o targeting a nonexistent channel fails as expected."""
+        self.setupNicks()
+        # target channel does not exist, but target nick does:
+        self.sendLine("chanop", "MODE #nonexistentchan +o chanop")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        # Modern: "If <target> is a channel that does not exist on the network,
+        # the ERR_NOSUCHCHANNEL (403) numeric is returned."
+        # However, Unreal and ngircd send 401 ERR_NOSUCHNICK here instead:
+        if self.controller.software_name not in ("UnrealIRCd", "ngIRCd"):
+            self.assertEqual(messages[0].command, ERR_NOSUCHCHANNEL)
+        else:
+            self.assertIn(messages[0].command, [ERR_NOSUCHCHANNEL, ERR_NOSUCHNICK])
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeChannelAndTargetDoNotExist(self):
+        """Test that +o targeting a nonexistent channel and nickname
+        fails as expected."""
+        self.setupNicks()
+        # neither target channel nor target nick exist:
+        self.sendLine("chanop", "MODE #nonexistentchan +o nobody")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertIn(
+            messages[0].command,
+            [ERR_NOSUCHCHANNEL, ERR_NOTONCHANNEL, ERR_NOSUCHNICK, ERR_USERNOTINCHANNEL],
+        )
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeSenderNonMember(self):
+        """Test that +o where the sender is not a channel member
+        fails as expected."""
+        self.setupNicks()
+        # sender is not a channel member, target nick exists and is a channel member:
+        self.sendLine("chanop", "MODE #unrelated +o unprivileged")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertIn(messages[0].command, [ERR_NOTONCHANNEL, ERR_CHANOPRIVSNEEDED])
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeSenderAndTargetNonMembers(self):
+        """Test that +o where neither the sender nor the target is a channel
+        member fails as expected."""
+        self.setupNicks()
+        # sender is not a channel member, target nick exists but is not a channel member:
+        self.sendLine("chanop", "MODE #unrelated +o chanop")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertIn(
+            messages[0].command,
+            [ERR_NOTONCHANNEL, ERR_CHANOPRIVSNEEDED, ERR_USERNOTINCHANNEL],
+        )
+
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorModeSuccess(self):
+        """Tests a successful grant of +o in a channel."""
+        self.setupNicks()
+
+        self.sendLine("chanop", "MODE #chan +o unprivileged")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(
+            messages[0],
+            command="MODE",
+            params=["#chan", "+o", "unprivileged"],
+        )
+        messages = self.getMessages("unprivileged")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(
+            messages[0],
+            command="MODE",
+            params=["#chan", "+o", "unprivileged"],
+        )

irctest/server_tests/confusables.py

@@ -12,8 +12,8 @@ class ConfusablesTestCase(cases.BaseServerTestCase):
     @staticmethod
     def config() -> cases.TestCaseControllerConfig:
         return cases.TestCaseControllerConfig(
-            ergo_config=lambda config: config["accounts"].update(
-                {"nick-reservation": {"enabled": True, "method": "strict"}}
+            ergo_config=lambda config: config["server"].update(
+                {"casemapping": "precis"},
             )
         )
 

irctest/server_tests/connection_registration.py

@@ -5,10 +5,12 @@ Tests section 4.1 of RFC 1459.
 TODO: cross-reference Modern and RFC 2812 too
 """
 
+import time
+
 from irctest import cases
 from irctest.client_mock import ConnectionClosed
 from irctest.numerics import ERR_NEEDMOREPARAMS, ERR_PASSWDMISMATCH
-from irctest.patma import ANYSTR, StrRe
+from irctest.patma import ANYLIST, ANYSTR, OptStrRe, StrRe
 
 
 class PasswordedConnectionRegistrationTestCase(cases.BaseServerTestCase):
@@ -83,6 +85,92 @@ class PasswordedConnectionRegistrationTestCase(cases.BaseServerTestCase):
 
 
 class ConnectionRegistrationTestCase(cases.BaseServerTestCase):
+    def testConnectionRegistration(self):
+        self.addClient()
+        self.sendLine(1, "NICK foo")
+        self.sendLine(1, "USER foo * * :foo")
+
+        for numeric in ("001", "002", "003"):
+            self.assertMessageMatch(
+                self.getRegistrationMessage(1),
+                command=numeric,
+                params=["foo", ANYSTR],
+            )
+
+        self.assertMessageMatch(
+            self.getRegistrationMessage(1),
+            command="004",  # RPL_MYINFO
+            params=[
+                "foo",
+                "My.Little.Server",
+                ANYSTR,  # version
+                StrRe("[a-zA-Z]+"),  # user modes
+                StrRe("[a-zA-Z]+"),  # channel modes
+                OptStrRe("[a-zA-Z]+"),  # channel modes with parameter
+            ],
+        )
+
+        # ISUPPORT
+        m = self.getRegistrationMessage(1)
+        while True:
+            self.assertMessageMatch(
+                m,
+                command="005",
+                params=["foo", *ANYLIST],
+            )
+            m = self.getRegistrationMessage(1)
+            if m.command != "005":
+                break
+
+        if m.command in ("042", "396"):  # RPL_YOURID / RPL_VISIBLEHOST, non-standard
+            m = self.getRegistrationMessage(1)
+
+        # LUSERS
+        while m.command in ("250", "251", "252", "253", "254", "255", "265", "266"):
+            m = self.getRegistrationMessage(1)
+
+        if m.command == "375":  # RPL_MOTDSTART
+            self.assertMessageMatch(
+                m,
+                command="375",
+                params=["foo", ANYSTR],
+            )
+            while (m := self.getRegistrationMessage(1)).command == "372":
+                self.assertMessageMatch(
+                    m,
+                    command="372",  # RPL_MOTD
+                    params=["foo", ANYSTR],
+                )
+            self.assertMessageMatch(
+                m,
+                command="376",  # RPL_ENDOFMOTD
+                params=["foo", ANYSTR],
+            )
+        else:
+            self.assertMessageMatch(
+                m,
+                command="422",  # ERR_NOMOTD
+                params=["foo", ANYSTR],
+            )
+
+        # User mode
+        if m.command == "MODE":
+            self.assertMessageMatch(
+                m,
+                command="MODE",
+                params=["foo", ANYSTR, *ANYLIST],
+            )
+            m = self.getRegistrationMessage(1)
+        elif m.command == "221":  # RPL_UMODEIS
+            self.assertMessageMatch(
+                m,
+                command="221",
+                params=["foo", ANYSTR, *ANYLIST],
+            )
+            m = self.getRegistrationMessage(1)
+        else:
+            print("Warning: missing MODE")
+
     @cases.mark_specifications("RFC1459")
     def testQuitDisconnects(self):
         """“The server must close the connection to a client which sends a
@@ -133,7 +221,7 @@ class ConnectionRegistrationTestCase(cases.BaseServerTestCase):
         self.assertNotEqual(
             m.command,
             "001",
-            "Received 001 after registering with the nick of a " "registered user.",
+            "Received 001 after registering with the nick of a registered user.",
         )
 
     def testEarlyNickCollision(self):
@@ -206,3 +294,58 @@ class ConnectionRegistrationTestCase(cases.BaseServerTestCase):
             command=ERR_NEEDMOREPARAMS,
             params=[StrRe(r"(\*|foo)"), "USER", ANYSTR],
         )
+
+    def testNonutf8Realname(self):
+        self.addClient()
+        self.sendLine(1, "NICK foo")
+        line = b"USER username * * :i\xe8rc\xe9\r\n"
+        print("1 -> S (repr): " + repr(line))
+        self.clients[1].conn.sendall(line)
+        for _ in range(10):
+            time.sleep(1)
+            d = self.clients[1].conn.recv(10000)
+            self.assertTrue(d, "Server closed connection")
+            print("S -> 1 (repr): " + repr(d))
+            if b" 001 " in d:
+                break
+            if b"ERROR " in d or b" FAIL " in d:
+                # Rejected; nothing more to test.
+                return
+            for line in d.split(b"\r\n"):
+                if line.startswith(b"PING "):
+                    line = line.replace(b"PING", b"PONG") + b"\r\n"
+                    print("1 -> S (repr): " + repr(line))
+                    self.clients[1].conn.sendall(line)
+        else:
+            self.assertTrue(False, "stuck waiting")
+        self.sendLine(1, "WHOIS foo")
+        time.sleep(3)  # for ngIRCd
+        d = self.clients[1].conn.recv(10000)
+        print("S -> 1 (repr): " + repr(d))
+        self.assertIn(b"username", d)
+
+    def testNonutf8Username(self):
+        self.addClient()
+        self.sendLine(1, "NICK foo")
+        self.sendLine(1, "USER 😊😊😊😊😊😊😊😊😊😊 * * :realname")
+        for _ in range(10):
+            time.sleep(1)
+            d = self.clients[1].conn.recv(10000)
+            self.assertTrue(d, "Server closed connection")
+            print("S -> 1 (repr): " + repr(d))
+            if b" 001 " in d:
+                break
+            if b" 468" in d or b"ERROR " in d:
+                # Rejected; nothing more to test.
+                return
+            for line in d.split(b"\r\n"):
+                if line.startswith(b"PING "):
+                    line = line.replace(b"PING", b"PONG") + b"\r\n"
+                    print("1 -> S (repr): " + repr(line))
+                    self.clients[1].conn.sendall(line)
+        else:
+            self.assertTrue(False, "stuck waiting")
+        self.sendLine(1, "WHOIS foo")
+        d = self.clients[1].conn.recv(10000)
+        print("S -> 1 (repr): " + repr(d))
+        self.assertIn(b"realname", d)

irctest/server_tests/echo_message.py

@@ -32,6 +32,9 @@ class EchoMessageTestCase(cases.BaseServerTestCase):
 
         self.sendLine(1, "JOIN #chan")
 
+        # Synchronize
+        self.getMessages(1)
+
         if not solo:
             self.connectClient("qux", capabilities=capabilities)
             self.sendLine(2, "JOIN #chan")

irctest/server_tests/isupport.py

@@ -9,6 +9,38 @@ from irctest import cases, runner
 
 
 class IsupportTestCase(cases.BaseServerTestCase):
+    @cases.mark_specifications("Modern")
+    @cases.mark_isupport("PREFIX")
+    def testParameters(self):
+        """https://modern.ircdocs.horse/#rplisupport-005"""
+
+        # <https://modern.ircdocs.horse/#connection-registration>
+        # "Upon successful completion of the registration process,
+        #  the server MUST send, in this order:
+        #  [...]
+        #  5. at least one RPL_ISUPPORT (005) numeric to the client."
+        welcome_005s = [
+            msg for msg in self.connectClient("foo") if msg.command == "005"
+        ]
+        self.assertGreaterEqual(len(welcome_005s), 1)
+        for msg in welcome_005s:
+            # first parameter is the client's nickname;
+            # last parameter is a human-readable trailing, typically
+            # "are supported by this server"
+            self.assertGreaterEqual(len(msg.params), 3)
+            self.assertEqual(msg.params[0], "foo")
+            # "As the maximum number of message parameters to any reply is 15,
+            # the maximum number of RPL_ISUPPORT tokens that can be advertised
+            # is 13."
+            self.assertLessEqual(len(msg.params), 15)
+            for param in msg.params[1:-1]:
+                self.validateIsupportParam(param)
+
+    def validateIsupportParam(self, param):
+        if not param.isascii():
+            raise ValueError("Invalid non-ASCII 005 parameter", param)
+        # TODO add more validation
+
     @cases.mark_specifications("Modern")
     @cases.mark_isupport("PREFIX")
     def testPrefix(self):
@@ -24,7 +56,8 @@ class IsupportTestCase(cases.BaseServerTestCase):
             return
 
         m = re.match(
-            r"\((?P<modes>[a-zA-Z]+)\)(?P<prefixes>\S+)", self.server_support["PREFIX"]
+            r"^\((?P<modes>[a-zA-Z]+)\)(?P<prefixes>\S+)$",
+            self.server_support["PREFIX"],
         )
         self.assertTrue(
             m,
@@ -85,5 +118,5 @@ class IsupportTestCase(cases.BaseServerTestCase):
         parts = self.server_support["TARGMAX"].split(",")
         for part in parts:
             self.assertTrue(
-                re.match("[A-Z]+:[0-9]*", part), "Invalid TARGMAX key:value: %r", part
+                re.match("^[A-Z]+:[0-9]*$", part), "Invalid TARGMAX key:value: %r", part
             )

irctest/server_tests/join.py

@@ -6,7 +6,6 @@ The JOIN command  (`RFC 1459
 """
 
 from irctest import cases, runner
-from irctest.irc_utils import ambiguities
 from irctest.numerics import (
     ERR_BADCHANMASK,
     ERR_FORBIDDENCHANNEL,
@@ -61,6 +60,7 @@ class JoinTestCase(cases.BaseServerTestCase):
             ),
         )
 
+    @cases.xfailIfSoftware(["Bahamut", "irc2"], "trailing space on RPL_NAMREPLY")
     @cases.mark_specifications("RFC2812")
     def testJoinNamreply(self):
         """“353    RPL_NAMREPLY
@@ -75,33 +75,23 @@ class JoinTestCase(cases.BaseServerTestCase):
 
         for m in self.getMessages(1):
             if m.command == "353":
-                self.assertIn(
-                    len(m.params),
-                    (3, 4),
-                    m,
-                    fail_msg="RPL_NAM_REPLY with number of arguments "
-                    "<3 or >4: {msg}",
+                self.assertMessageMatch(
+                    m, params=["foo", StrRe(r"[=\*@]"), "#chan", StrRe("[@+]?foo")]
                 )
-                params = ambiguities.normalize_namreply_params(m.params)
-                self.assertIn(
-                    params[1],
-                    "=*@",
+
+        self.connectClient("bar")
+        self.sendLine(2, "JOIN #chan")
+
+        for m in self.getMessages(2):
+            if m.command == "353":
+                self.assertMessageMatch(
                     m,
-                    fail_msg="Bad channel prefix: {item} not in {list}: {msg}",
-                )
-                self.assertEqual(
-                    params[2],
-                    "#chan",
-                    m,
-                    fail_msg="Bad channel name: {got} instead of " "{expects}: {msg}",
-                )
-                self.assertIn(
-                    params[3],
-                    {"foo", "@foo", "+foo"},
-                    m,
-                    fail_msg="Bad user list: should contain only user "
-                    '"foo" with an optional "+" or "@" prefix, but got: '
-                    "{msg}",
+                    params=[
+                        "bar",
+                        StrRe(r"[=\*@]"),
+                        "#chan",
+                        StrRe("([@+]?foo bar|bar [@+]?foo)"),
+                    ],
                 )
 
     def testJoinTwice(self):
@@ -115,34 +105,8 @@ class JoinTestCase(cases.BaseServerTestCase):
         # if the join is successful, or has an error among the given set.
         for m in self.getMessages(1):
             if m.command == "353":
-                self.assertIn(
-                    len(m.params),
-                    (3, 4),
-                    m,
-                    fail_msg="RPL_NAM_REPLY with number of arguments "
-                    "<3 or >4: {msg}",
-                )
-                params = ambiguities.normalize_namreply_params(m.params)
-                self.assertIn(
-                    params[1],
-                    "=*@",
-                    m,
-                    fail_msg="Bad channel prefix: {item} not in {list}: {msg}",
-                )
-                self.assertEqual(
-                    params[2],
-                    "#chan",
-                    m,
-                    fail_msg="Bad channel name: {got} instead of " "{expects}: {msg}",
-                )
-                self.assertIn(
-                    params[3],
-                    {"foo", "@foo", "+foo"},
-                    m,
-                    fail_msg='Bad user list after user "foo" joined twice '
-                    "the same channel: should contain only user "
-                    '"foo" with an optional "+" or "@" prefix, but got: '
-                    "{msg}",
+                self.assertMessageMatch(
+                    m, params=["foo", StrRe(r"[=\*@]"), "#chan", StrRe("[@+]?foo")]
                 )
 
     def testJoinPartiallyInvalid(self):
@@ -236,3 +200,78 @@ class JoinTestCase(cases.BaseServerTestCase):
             fail_msg="Expected 1 error when joining channels '#valid' and 'inv@lid', "
             "got {got}",
         )
+
+    @cases.mark_specifications("RFC1459", "RFC2812", "Modern")
+    def testJoinKey(self):
+        """Joins a single channel with a key"""
+        self.connectClient("chanop")
+        self.joinChannel(1, "#chan")
+        self.sendLine(1, "MODE #chan +k key")
+        self.getMessages(1)
+
+        self.connectClient("joiner")
+        self.sendLine(2, "JOIN #chan key")
+        self.assertMessageMatch(
+            self.getMessage(2),
+            command="JOIN",
+            params=["#chan"],
+        )
+
+    @cases.mark_specifications("RFC1459", "RFC2812", "Modern")
+    def testJoinKeys(self):
+        """Joins two channels, both with keys"""
+        self.connectClient("chanop")
+        if self.targmax.get("JOIN", "1000") == "1":
+            raise runner.OptionalExtensionNotSupported("Multi-target JOIN")
+        self.joinChannel(1, "#chan1")
+        self.sendLine(1, "MODE #chan1 +k key1")
+        self.getMessages(1)
+        self.joinChannel(1, "#chan2")
+        self.sendLine(1, "MODE #chan2 +k key2")
+        self.getMessages(1)
+
+        self.connectClient("joiner")
+        self.sendLine(2, "JOIN #chan1,#chan2 key1,key2")
+        self.assertMessageMatch(
+            self.getMessage(2),
+            command="JOIN",
+            params=["#chan1"],
+        )
+        self.assertMessageMatch(
+            [
+                msg
+                for msg in self.getMessages(2)
+                if msg.command not in {RPL_NAMREPLY, RPL_ENDOFNAMES}
+            ][0],
+            command="JOIN",
+            params=["#chan2"],
+        )
+
+    @cases.mark_specifications("RFC1459", "RFC2812", "Modern")
+    def testJoinManySingleKey(self):
+        """Joins two channels, the first one has a key."""
+        self.connectClient("chanop")
+        if self.targmax.get("JOIN", "1000") == "1":
+            raise runner.OptionalExtensionNotSupported("Multi-target JOIN")
+        self.joinChannel(1, "#chan1")
+        self.sendLine(1, "MODE #chan1 +k key1")
+        self.getMessages(1)
+        self.joinChannel(1, "#chan2")
+        self.getMessages(1)
+
+        self.connectClient("joiner")
+        self.sendLine(2, "JOIN #chan1,#chan2 key1")
+        self.assertMessageMatch(
+            self.getMessage(2),
+            command="JOIN",
+            params=["#chan1"],
+        )
+        self.assertMessageMatch(
+            [
+                msg
+                for msg in self.getMessages(2)
+                if msg.command not in {RPL_NAMREPLY, RPL_ENDOFNAMES}
+            ][0],
+            command="JOIN",
+            params=["#chan2"],
+        )

irctest/server_tests/messages.py

@@ -13,6 +13,7 @@ class PrivmsgTestCase(cases.BaseServerTestCase):
         """<https://tools.ietf.org/html/rfc2812#section-3.3.1>"""
         self.connectClient("foo")
         self.sendLine(1, "JOIN #chan")
+        self.getMessages(1)  # synchronize
         self.connectClient("bar")
         self.sendLine(2, "JOIN #chan")
         self.getMessages(2)  # synchronize
@@ -53,6 +54,28 @@ class PrivmsgTestCase(cases.BaseServerTestCase):
         # ERR_NOSUCHNICK: 401 <sender> <recipient> :No such nick
         self.assertMessageMatch(msg, command="401", params=["foo", "bar", ANYSTR])
 
+    @cases.mark_specifications("RFC1459", "RFC2812", "Modern")
+    @cases.xfailIfSoftware(
+        ["irc2"],
+        "replies with ERR_NEEDMOREPARAMS instead of ERR_NOTEXTTOSEND",
+    )
+    def testEmptyPrivmsg(self):
+        self.connectClient("foo")
+        self.sendLine(1, "JOIN #chan")
+        self.getMessages(1)  # synchronize
+        self.connectClient("bar")
+        self.sendLine(2, "JOIN #chan")
+        self.getMessages(2)  # synchronize
+        self.getMessages(1)  # synchronize
+        self.sendLine(1, "PRIVMSG #chan :")
+
+        self.assertMessageMatch(
+            self.getMessage(1),
+            command="412",  # ERR_NOTEXTTOSEND
+            params=["foo", ANYSTR],
+        )
+        self.assertEqual(self.getMessages(2), [])
+
 
 class NoticeTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("RFC1459", "RFC2812")

irctest/server_tests/monitor.py

@@ -8,6 +8,7 @@ import pytest
 from irctest import cases, runner
 from irctest.client_mock import NoMessageException
 from irctest.numerics import (
+    ERR_ERRONEUSNICKNAME,
     RPL_ENDOFMONLIST,
     RPL_MONLIST,
     RPL_MONOFFLINE,
@@ -190,14 +191,15 @@ class MonitorTestCase(_BaseMonitorTestCase):
         self.check_server_support()
         self.sendLine(1, "MONITOR + *!username@localhost")
         self.sendLine(1, "MONITOR + *!username@127.0.0.1")
+        expected_command = StrRe(f"({RPL_MONOFFLINE}|{ERR_ERRONEUSNICKNAME})")
         try:
             m = self.getMessage(1)
-            self.assertMessageMatch(m, command="731")
+            self.assertMessageMatch(m, command=expected_command)
         except NoMessageException:
             pass
         else:
             m = self.getMessage(1)
-            self.assertMessageMatch(m, command="731")
+            self.assertMessageMatch(m, command=expected_command)
         self.connectClient("bar")
         try:
             m = self.getMessage(1)

irctest/server_tests/multi_prefix.py

@@ -24,11 +24,6 @@ class MultiPrefixTestCase(cases.BaseServerTestCase):
 
         self.sendLine(1, "NAMES #chan")
         reply = self.getMessage(1)
-        self.assertMessageMatch(
-            reply,
-            command="353",
-            fail_msg="Expected NAMES response (353) with @+foo, got: {msg}",
-        )
         self.assertMessageMatch(
             reply,
             command="353",
@@ -47,9 +42,57 @@ class MultiPrefixTestCase(cases.BaseServerTestCase):
             8,
             "Expected WHO response (352) with 8 params, got: {msg}".format(msg=msg),
         )
-        self.assertTrue(
-            "@+" in msg.params[6],
+        self.assertIn(
+            "@+",
+            msg.params[6],
             'Expected WHO response (352) with "@+" in param 7, got: {msg}'.format(
                 msg=msg
             ),
         )
+
+    @cases.xfailIfSoftware(
+        ["irc2", "Bahamut"], "irc2 and Bahamut send a trailing space"
+    )
+    def testNoMultiPrefix(self):
+        """When not requested, only the highest prefix should be sent"""
+        self.connectClient("foo")
+        self.joinChannel(1, "#chan")
+        self.sendLine(1, "MODE #chan +v foo")
+        self.getMessages(1)
+
+        # TODO(dan): Make sure +v is voice
+
+        self.sendLine(1, "NAMES #chan")
+        reply = self.getMessage(1)
+        self.assertMessageMatch(
+            reply,
+            command="353",
+            params=["foo", ANYSTR, "#chan", "@foo"],
+            fail_msg="Expected NAMES response (353) with @foo, got: {msg}",
+        )
+        self.getMessages(1)
+
+        self.sendLine(1, "WHO #chan")
+        msg = self.getMessage(1)
+        self.assertEqual(
+            msg.command, "352", msg, fail_msg="Expected WHO response (352), got: {msg}"
+        )
+        self.assertGreaterEqual(
+            len(msg.params),
+            8,
+            "Expected WHO response (352) with 8 params, got: {msg}".format(msg=msg),
+        )
+        self.assertIn(
+            "@",
+            msg.params[6],
+            'Expected WHO response (352) with "@" in param 7, got: {msg}'.format(
+                msg=msg
+            ),
+        )
+        self.assertNotIn(
+            "+",
+            msg.params[6],
+            'Expected WHO response (352) with no "+" in param 7, got: {msg}'.format(
+                msg=msg
+            ),
+        )

irctest/server_tests/multiline.py

@@ -3,7 +3,7 @@
 """
 
 from irctest import cases
-from irctest.patma import ANYDICT, StrRe
+from irctest.patma import ANYDICT, ANYSTR, StrRe
 
 CAP_NAME = "draft/multiline"
 BATCH_TYPE = "draft/multiline"
@@ -135,3 +135,86 @@ class MultilineTestCase(cases.BaseServerTestCase):
         self.assertIn("+client-only-tag", fallback_relay[0].tags)
         self.assertIn("+client-only-tag", fallback_relay[1].tags)
         self.assertEqual(fallback_relay[0].tags["msgid"], msgid)
+
+    @cases.mark_capabilities("draft/multiline")
+    def testInvalidBatchTag(self):
+        """Test that an unexpected change of batch tag results in
+        FAIL BATCH MULTILINE_INVALID."""
+
+        self.connectClient(
+            "alice", capabilities=(base_caps + [CAP_NAME]), skip_if_cap_nak=True
+        )
+        self.joinChannel(1, "#test")
+
+        # invalid batch tag:
+        self.sendLine(1, "BATCH +123 %s #test" % (BATCH_TYPE,))
+        self.sendLine(1, "@batch=231 PRIVMSG #test :hi")
+        self.assertMessageMatch(
+            self.getMessage(1),
+            command="FAIL",
+            params=["BATCH", "MULTILINE_INVALID", ANYSTR],
+        )
+
+    @cases.mark_capabilities("draft/multiline")
+    def testInvalidBlankConcatTag(self):
+        """Test that the concat tag on a blank message results in
+        FAIL BATCH MULTILINE_INVALID."""
+
+        self.connectClient(
+            "alice", capabilities=(base_caps + [CAP_NAME]), skip_if_cap_nak=True
+        )
+        self.joinChannel(1, "#test")
+
+        # cannot send the concat tag with a blank message:
+        self.sendLine(1, "BATCH +123 %s #test" % (BATCH_TYPE,))
+        self.sendLine(1, "@batch=123 PRIVMSG #test :hi")
+        self.sendLine(1, "@batch=123;%s PRIVMSG #test :" % (CONCAT_TAG,))
+        self.assertMessageMatch(
+            self.getMessage(1),
+            command="FAIL",
+            params=["BATCH", "MULTILINE_INVALID", ANYSTR],
+        )
+
+    @cases.mark_specifications("Ergo")
+    def testLineLimit(self):
+        """This is an Ergo-specific test for line limit enforcement
+        in multiline messages. Right now it hardcodes the same limits as in
+        the Ergo controller; we can generalize it in future for other multiline
+        implementations.
+        """
+
+        self.connectClient(
+            "alice", capabilities=(base_caps + [CAP_NAME]), skip_if_cap_nak=False
+        )
+        self.joinChannel(1, "#test")
+
+        # line limit exceeded
+        self.sendLine(1, "BATCH +123 %s #test" % (BATCH_TYPE,))
+        for i in range(33):
+            self.sendLine(1, "@batch=123 PRIVMSG #test hi")
+        self.assertMessageMatch(
+            self.getMessage(1),
+            command="FAIL",
+            params=["BATCH", "MULTILINE_MAX_LINES", "32", ANYSTR],
+        )
+
+    @cases.mark_specifications("Ergo")
+    def testByteLimit(self):
+        """This is an Ergo-specific test for line limit enforcement
+        in multiline messages (see testLineLimit).
+        """
+
+        self.connectClient(
+            "alice", capabilities=(base_caps + [CAP_NAME]), skip_if_cap_nak=False
+        )
+        self.joinChannel(1, "#test")
+
+        # byte limit exceeded
+        self.sendLine(1, "BATCH +234 %s #test" % (BATCH_TYPE,))
+        for i in range(11):
+            self.sendLine(1, "@batch=234 PRIVMSG #test " + ("x" * 400))
+        self.assertMessageMatch(
+            self.getMessage(1),
+            command="FAIL",
+            params=["BATCH", "MULTILINE_MAX_BYTES", "4096", ANYSTR],
+        )

irctest/server_tests/names.py

@@ -11,7 +11,7 @@ from irctest.patma import ANYSTR, StrRe
 
 
 class NamesTestCase(cases.BaseServerTestCase):
-    def _testNames(self, symbol):
+    def _testNames(self, symbol: bool, allow_trailing_space: bool):
         self.connectClient("nick1")
         self.sendLine(1, "JOIN #chan")
         self.getMessages(1)
@@ -31,7 +31,10 @@ class NamesTestCase(cases.BaseServerTestCase):
                 "nick1",
                 *(["="] if symbol else []),
                 "#chan",
-                StrRe("(nick2 @nick1|@nick1 nick2)"),
+                StrRe(
+                    "(nick2 @nick1|@nick1 nick2)"
+                    + (" ?" if allow_trailing_space else "")
+                ),
             ],
         )
 
@@ -44,20 +47,59 @@ class NamesTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("RFC1459", deprecated=True)
     def testNames1459(self):
         """
-        https://modern.ircdocs.horse/#names-message
         https://datatracker.ietf.org/doc/html/rfc1459#section-4.2.5
-        https://datatracker.ietf.org/doc/html/rfc2812#section-3.2.5
         """
-        self._testNames(symbol=False)
+        self._testNames(symbol=False, allow_trailing_space=True)
 
-    @cases.mark_specifications("RFC1459", "RFC2812", "Modern")
+    @cases.mark_specifications("RFC2812", "Modern")
     def testNames2812(self):
         """
-        https://modern.ircdocs.horse/#names-message
-        https://datatracker.ietf.org/doc/html/rfc1459#section-4.2.5
         https://datatracker.ietf.org/doc/html/rfc2812#section-3.2.5
         """
-        self._testNames(symbol=True)
+        self._testNames(symbol=True, allow_trailing_space=True)
+
+    @cases.mark_specifications("Modern")
+    @cases.xfailIfSoftware(
+        ["Bahamut", "irc2"], "Bahamut and irc2 send a trailing space in RPL_NAMREPLY"
+    )
+    def testNamesModern(self):
+        """
+        https://modern.ircdocs.horse/#names-message
+        """
+        self._testNames(symbol=True, allow_trailing_space=False)
+
+    @cases.mark_specifications("RFC2812", "Modern")
+    def testNames2812Secret(self):
+        """The symbol sent for a secret channel is `@` instead of `=`:
+        https://datatracker.ietf.org/doc/html/rfc2812#section-3.2.5
+        https://modern.ircdocs.horse/#rplnamreply-353
+        """
+        self.connectClient("nick1")
+        self.sendLine(1, "JOIN #chan")
+        # enable secret channel mode
+        self.sendLine(1, "MODE #chan +s")
+        self.getMessages(1)
+        self.sendLine(1, "NAMES #chan")
+        messages = self.getMessages(1)
+        self.assertMessageMatch(
+            messages[0],
+            command=RPL_NAMREPLY,
+            params=["nick1", "@", "#chan", StrRe("@nick1 ?")],
+        )
+        self.assertMessageMatch(
+            messages[1],
+            command=RPL_ENDOFNAMES,
+            params=["nick1", "#chan", ANYSTR],
+        )
+
+        self.connectClient("nick2")
+        self.sendLine(2, "JOIN #chan")
+        namreplies = [msg for msg in self.getMessages(2) if msg.command == RPL_NAMREPLY]
+        self.assertNotEqual(len(namreplies), 0)
+        for msg in namreplies:
+            self.assertMessageMatch(
+                msg, command=RPL_NAMREPLY, params=["nick2", "@", "#chan", ANYSTR]
+            )
 
     def _testNamesMultipleChannels(self, symbol):
         self.connectClient("nick1")

irctest/server_tests/quit.py

@@ -10,7 +10,6 @@ TODO: cross-reference RFC 1459 and Modern
 import time
 
 from irctest import cases
-from irctest.numerics import ERR_CANNOTSENDTOCHAN
 from irctest.patma import StrRe
 
 
@@ -40,31 +39,3 @@ class ChannelQuitTestCase(cases.BaseServerTestCase):
         m = self.getMessage(1)
         self.assertMessageMatch(m, command="QUIT", params=[StrRe(".*qux out.*")])
         self.assertTrue(m.prefix.startswith("qux"))  # nickmask of quitter
-
-
-class NoCTCPTestCase(cases.BaseServerTestCase):
-    @cases.mark_specifications("Ergo")
-    def testQuit(self):
-        self.connectClient("bar")
-        self.joinChannel(1, "#chan")
-        self.sendLine(1, "MODE #chan +C")
-        self.getMessages(1)
-
-        self.connectClient("qux")
-        self.joinChannel(2, "#chan")
-        self.getMessages(2)
-
-        self.sendLine(1, "PRIVMSG #chan :\x01ACTION hi\x01")
-        self.getMessages(1)
-        ms = self.getMessages(2)
-        self.assertEqual(len(ms), 1)
-        self.assertMessageMatch(
-            ms[0], command="PRIVMSG", params=["#chan", "\x01ACTION hi\x01"]
-        )
-
-        self.sendLine(1, "PRIVMSG #chan :\x01PING 1473523796 918320\x01")
-        ms = self.getMessages(1)
-        self.assertEqual(len(ms), 1)
-        self.assertMessageMatch(ms[0], command=ERR_CANNOTSENDTOCHAN)
-        ms = self.getMessages(2)
-        self.assertEqual(ms, [])

irctest/server_tests/regressions.py

@@ -42,14 +42,21 @@ class RegressionsTestCase(cases.BaseServerTestCase):
         self.getMessages(1)
         self.getMessages(2)
 
-        # case change: both alice and bob should get a successful nick line
+        # 'alice' is claimed, so 'Alice' is reserved and Bob cannot take it:
+        self.sendLine(2, "NICK Alice")
+        ms = self.getMessages(2)
+        self.assertEqual(len(ms), 1)
+        self.assertMessageMatch(ms[0], command=ERR_NICKNAMEINUSE)
+
+        # but alice can change case to 'Alice'; both alice and bob should get
+        # a successful NICK line
         self.sendLine(1, "NICK Alice")
         ms = self.getMessages(1)
         self.assertEqual(len(ms), 1)
-        self.assertMessageMatch(ms[0], command="NICK", params=["Alice"])
+        self.assertMessageMatch(ms[0], nick="alice", command="NICK", params=["Alice"])
         ms = self.getMessages(2)
         self.assertEqual(len(ms), 1)
-        self.assertMessageMatch(ms[0], command="NICK", params=["Alice"])
+        self.assertMessageMatch(ms[0], nick="alice", command="NICK", params=["Alice"])
 
         # no responses, either to the user or to friends, from a no-op nick change
         self.sendLine(1, "NICK Alice")
@@ -190,3 +197,27 @@ class RegressionsTestCase(cases.BaseServerTestCase):
         self.sendLine(2, "USER u s e r")
         reply = self.getRegistrationMessage(2)
         self.assertMessageMatch(reply, command=RPL_WELCOME)
+
+    @cases.mark_specifications("IRCv3")
+    def testLabeledNick(self):
+        """
+        InspIRCd up to 3.16.1 used the new nick as source of NICK changes
+
+        https://github.com/inspircd/inspircd/issues/2067
+
+        https://github.com/inspircd/inspircd/commit/83f01b36a11734fd91a4e7aad99c15463858fe4a
+        """
+        self.connectClient(
+            "alice",
+            capabilities=["batch", "labeled-response"],
+            skip_if_cap_nak=True,
+        )
+
+        self.sendLine(1, "@label=abc NICK alice2")
+        self.assertMessageMatch(
+            self.getMessage(1),
+            nick="alice",
+            command="NICK",
+            params=["alice2"],
+            tags={"label": "abc", **ANYDICT},
+        )

irctest/server_tests/sasl.py

@@ -1,7 +1,7 @@
 import base64
 
 from irctest import cases, runner, scram
-from irctest.numerics import ERR_SASLFAIL
+from irctest.numerics import ERR_SASLFAIL, RPL_LOGGEDIN, RPL_SASLMECHS
 from irctest.patma import ANYSTR
 
 
@@ -48,11 +48,37 @@ class SaslTestCase(cases.BaseServerTestCase):
         m = self.getRegistrationMessage(1)
         self.assertMessageMatch(
             m,
-            command="900",
+            command=RPL_LOGGEDIN,
             params=[ANYSTR, ANYSTR, "jilles", ANYSTR],
             fail_msg="Unexpected reply to correct SASL authentication: {msg}",
         )
 
+    @cases.mark_specifications("IRCv3")
+    @cases.skipUnlessHasMechanism("PLAIN")
+    def testPlainFailure(self):
+        """PLAIN authentication with incorrect username/password."""
+        self.controller.registerUser(self, "jilles", "sesame")
+        self.addClient()
+        self.requestCapabilities(1, ["sasl"], skip_if_cap_nak=False)
+        self.sendLine(1, "AUTHENTICATE PLAIN")
+        m = self.getRegistrationMessage(1)
+        self.assertMessageMatch(
+            m,
+            command="AUTHENTICATE",
+            params=["+"],
+            fail_msg="Sent “AUTHENTICATE PLAIN”, server should have "
+            "replied with “AUTHENTICATE +”, but instead sent: {msg}",
+        )
+        # password 'millet'
+        self.sendLine(1, "AUTHENTICATE amlsbGVzAGppbGxlcwBtaWxsZXQ=")
+        m = self.getRegistrationMessage(1)
+        self.assertMessageMatch(
+            m,
+            command=ERR_SASLFAIL,
+            params=[ANYSTR, ANYSTR],
+            fail_msg="Unexpected reply to incorrect SASL authentication: {msg}",
+        )
+
     @cases.mark_specifications("IRCv3")
     @cases.skipUnlessHasMechanism("PLAIN")
     def testPlainNonAscii(self):
@@ -161,11 +187,11 @@ class SaslTestCase(cases.BaseServerTestCase):
         self.requestCapabilities(1, ["sasl"], skip_if_cap_nak=False)
         self.sendLine(1, "AUTHENTICATE FOO")
         m = self.getRegistrationMessage(1)
-        while m.command == "908":  # RPL_SASLMECHS
+        while m.command == RPL_SASLMECHS:
             m = self.getRegistrationMessage(1)
         self.assertMessageMatch(
             m,
-            command="904",
+            command=ERR_SASLFAIL,
             fail_msg="Did not reply with 904 to “AUTHENTICATE FOO”: {msg}",
         )
 

irctest/server_tests/topic.py

@@ -11,13 +11,29 @@ from irctest.numerics import ERR_CHANOPRIVSNEEDED, RPL_NOTOPIC, RPL_TOPIC, RPL_T
 
 class TopicTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("RFC1459", "RFC2812")
-    def testTopic(self):
+    def testTopicRfc(self):
         """“Once a user has joined a channel, he receives information about
         all commands his server receives affecting the channel.  This
         includes […] TOPIC”
         -- <https://tools.ietf.org/html/rfc1459#section-4.2.1>
         and <https://tools.ietf.org/html/rfc2812#section-3.2.1>
         """
+        self._testTopic(assert_echo=False)
+
+    @cases.mark_specifications("Modern")
+    def testTopicModern(self):
+        """ "If the topic of a channel is changed or cleared, every client in that
+        channel (including the author of the topic change) will receive a TOPIC command
+        with the new topic as argument (or an empty argument if the topic was cleared)
+        alerting them to how the topic has changed.
+
+        Clients joining the channel in the future will receive a RPL_TOPIC numeric (or
+        lack thereof) accordingly."
+        -- https://modern.ircdocs.horse/#topic-message
+        """
+        self._testTopic(assert_echo=True)
+
+    def _testTopic(self, assert_echo: bool):
         self.connectClient("foo")
         self.joinChannel(1, "#chan")
 
@@ -41,35 +57,12 @@ class TopicTestCase(cases.BaseServerTestCase):
                 )
             self.assertMessageMatch(m, command="TOPIC")
         except client_mock.NoMessageException:
+            self.assertFalse(assert_echo, "TOPIC was not echoed back to the author")
             # The RFCs do not say TOPIC must be echoed
             pass
         m = self.getMessage(2)
         self.assertMessageMatch(m, command="TOPIC", params=["#chan", "T0P1C"])
 
-    @cases.mark_specifications("Modern")
-    def testTopicUnchanged(self):
-        """"If the topic of a channel is changed or cleared, every client in that
-        channel (including the author of the topic change) will receive a TOPIC command"
-        -- https://modern.ircdocs.horse/#topic-message
-        """
-        self.connectClient("foo")
-        self.joinChannel(1, "#chan")
-
-        self.connectClient("bar")
-        self.joinChannel(2, "#chan")
-
-        # clear waiting msgs about cli 2 joining the channel
-        self.getMessages(1)
-        self.getMessages(2)
-
-        self.sendLine(1, "TOPIC #chan :T0P1C")
-        self.getMessages(1)
-        self.getMessages(2)
-
-        self.sendLine(1, "TOPIC #chan :T0P1C")
-        self.assertEqual(self.getMessages(2), [], "Unchanged topic was transmitted")
-        self.assertEqual(self.getMessages(1), [], "Unchanged topic was echoed")
-
     @cases.mark_specifications("RFC1459", "RFC2812")
     def testTopicMode(self):
         """“Once a user has joined a channel, he receives information about

irctest/server_tests/utf8.py

@@ -5,6 +5,7 @@
 """
 
 from irctest import cases, runner
+from irctest.numerics import ERR_ERRONEUSNICKNAME
 from irctest.patma import ANYSTR
 
 
@@ -46,3 +47,88 @@ class Utf8TestCase(cases.BaseServerTestCase):
 
         if m.command in ("FAIL", "WARN"):
             self.assertMessageMatch(m, params=["PRIVMSG", "INVALID_UTF8", ANYSTR])
+
+    def testNonutf8Realname(self):
+        self.connectClient("foo")
+        if "UTF8ONLY" not in self.server_support:
+            raise runner.IsupportTokenNotSupported("UTF8ONLY")
+
+        self.addClient()
+        self.sendLine(2, "NICK bar")
+        self.clients[2].conn.sendall(b"USER username * * :i\xe8rc\xe9\r\n")
+
+        d = b""
+        while True:
+            try:
+                buf = self.clients[2].conn.recv(1024)
+            except TimeoutError:
+                break
+            if d and not buf:
+                break
+            d += buf
+        if b"FAIL " in d or b"ERROR " in d or b"468 " in d:  # ERR_INVALIDUSERNAME
+            return  # nothing more to test
+        self.assertIn(b"001 ", d)
+
+        self.sendLine(2, "WHOIS bar")
+        self.getMessages(2)
+
+    def testNonutf8Username(self):
+        self.connectClient("foo")
+        if "UTF8ONLY" not in self.server_support:
+            raise runner.IsupportTokenNotSupported("UTF8ONLY")
+
+        self.addClient()
+        self.sendLine(2, "NICK bar")
+        self.clients[2].conn.sendall(b"USER \xe8rc\xe9 * * :readlname\r\n")
+
+        d = b""
+        while True:
+            try:
+                buf = self.clients[2].conn.recv(1024)
+            except TimeoutError:
+                break
+            if d and not buf:
+                break
+            d += buf
+        if b"FAIL " in d or b"ERROR " in d or b"468 " in d:  # ERR_INVALIDUSERNAME
+            return  # nothing more to test
+        self.assertIn(b"001 ", d)
+
+        self.sendLine(2, "WHOIS bar")
+        self.getMessages(2)
+
+
+class ErgoUtf8NickEnabledTestCase(cases.BaseServerTestCase):
+    @staticmethod
+    def config() -> cases.TestCaseControllerConfig:
+        return cases.TestCaseControllerConfig(
+            ergo_config=lambda config: config["server"].update(
+                {"casemapping": "precis"},
+            )
+        )
+
+    @cases.mark_specifications("Ergo")
+    def testUtf8NonAsciiNick(self):
+        """Ergo accepts certain non-ASCII UTF8 nicknames if PRECIS is enabled."""
+        self.connectClient("Işıl")
+        self.joinChannel(1, "#test")
+
+        self.connectClient("Claire")
+        self.joinChannel(2, "#test")
+
+        self.sendLine(1, "PRIVMSG #test :hi there")
+        self.getMessages(1)
+        self.assertMessageMatch(
+            self.getMessage(2), nick="Işıl", params=["#test", "hi there"]
+        )
+
+
+class ErgoUtf8NickDisabledTestCase(cases.BaseServerTestCase):
+    @cases.mark_specifications("Ergo")
+    def testUtf8NonAsciiNick(self):
+        """Ergo rejects non-ASCII nicknames in its default configuration."""
+        self.addClient(1)
+        self.sendLine(1, "USER u s e r")
+        self.sendLine(1, "NICK Işıl")
+        self.assertMessageMatch(self.getMessage(1), command=ERR_ERRONEUSNICKNAME)

irctest/server_tests/who.py

@@ -60,7 +60,7 @@ class BaseWhoTestCase:
                     "*",  # no chan
                     StrRe("~?" + self.username),
                     StrRe(host_re),
-                    "My.Little.Server",
+                    StrRe(r"(My.Little.Server|\*)"),
                     "coolNick",
                     flags,
                     StrRe(realname_regexp(self.realname)),
@@ -76,7 +76,7 @@ class BaseWhoTestCase:
                     "#chan",
                     StrRe("~?" + self.username),
                     StrRe(host_re),
-                    "My.Little.Server",
+                    StrRe(r"(My.Little.Server|\*)"),
                     "coolNick",
                     flags + "@",
                     StrRe(realname_regexp(self.realname)),
@@ -87,7 +87,7 @@ class BaseWhoTestCase:
 class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
     @cases.mark_specifications("Modern")
     def testWhoStar(self):
-        if self.controller.software_name == "Bahamut":
+        if self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
@@ -118,7 +118,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
     )
     @cases.mark_specifications("Modern")
     def testWhoNick(self, mask):
-        if "*" in mask and self.controller.software_name == "Bahamut":
+        if "*" in mask and self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
@@ -148,7 +148,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
         ids=["username", "realname-mask", "hostname"],
     )
     def testWhoUsernameRealName(self, mask):
-        if "*" in mask and self.controller.software_name == "Bahamut":
+        if "*" in mask and self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
@@ -201,7 +201,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
     )
     @cases.mark_specifications("Modern")
     def testWhoNickAway(self, mask):
-        if "*" in mask and self.controller.software_name == "Bahamut":
+        if "*" in mask and self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
@@ -228,9 +228,14 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
     @pytest.mark.parametrize(
         "mask", ["coolNick", "coolnick", "coolni*"], ids=["exact", "casefolded", "mask"]
     )
+    @cases.xfailIfSoftware(
+        ["Sable"],
+        "Sable does not advertise oper status in WHO: "
+        "https://github.com/Libera-Chat/sable/pull/77",
+    )
     @cases.mark_specifications("Modern")
     def testWhoNickOper(self, mask):
-        if "*" in mask and self.controller.software_name == "Bahamut":
+        if "*" in mask and self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
@@ -262,9 +267,14 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
     @pytest.mark.parametrize(
         "mask", ["coolNick", "coolnick", "coolni*"], ids=["exact", "casefolded", "mask"]
     )
+    @cases.xfailIfSoftware(
+        ["Sable"],
+        "Sable does not advertise oper status in WHO: "
+        "https://github.com/Libera-Chat/sable/pull/77",
+    )
     @cases.mark_specifications("Modern")
     def testWhoNickAwayAndOper(self, mask):
-        if "*" in mask and self.controller.software_name == "Bahamut":
+        if "*" in mask and self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
@@ -298,18 +308,11 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
     @pytest.mark.parametrize("mask", ["#chan", "#CHAN"], ids=["exact", "casefolded"])
     @cases.mark_specifications("Modern")
     def testWhoChan(self, mask):
-        if "*" in mask and self.controller.software_name == "Bahamut":
+        if "*" in mask and self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self._init()
 
-        self.sendLine(1, "OPER operuser operpassword")
-        self.assertIn(
-            RPL_YOUREOPER,
-            [m.command for m in self.getMessages(1)],
-            fail_msg="OPER failed",
-        )
-
         self.sendLine(1, "AWAY :be right back")
         self.getMessages(1)
         self.getMessages(2)
@@ -333,9 +336,9 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
                 "#chan",
                 StrRe("~?" + self.username),
                 StrRe(host_re),
-                "My.Little.Server",
+                StrRe(r"(My.Little.Server|\*)"),
                 "coolNick",
-                "G*@",
+                "G@",
                 StrRe(realname_regexp(self.realname)),
             ],
         )
@@ -348,7 +351,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
                 "#chan",
                 ANYSTR,
                 ANYSTR,
-                "My.Little.Server",
+                StrRe(r"(My.Little.Server|\*)"),
                 "otherNick",
                 "H",
                 StrRe("[0-9]+ .*"),
@@ -395,7 +398,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
                     chan,
                     ANYSTR,
                     ANYSTR,
-                    "My.Little.Server",
+                    StrRe(r"(My.Little.Server|\*)"),
                     "coolNick",
                     ANYSTR,
                     ANYSTR,
@@ -410,7 +413,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
                     chan,
                     ANYSTR,
                     ANYSTR,
-                    "My.Little.Server",
+                    StrRe(r"(My.Little.Server|\*)"),
                     "otherNick",
                     ANYSTR,
                     ANYSTR,
@@ -476,7 +479,7 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
                 StrRe("~?myusernam"),
                 ANYSTR,
                 ANYSTR,
-                "My.Little.Server",
+                StrRe(r"(My.Little.Server|\*)"),
                 "coolNick",
                 StrRe("H@?"),
                 ANYSTR,  # hopcount
@@ -493,6 +496,46 @@ class WhoTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
             params=["otherNick", InsensitiveStr("coolNick"), ANYSTR],
         )
 
+    @pytest.mark.parametrize("char", "cuihsnfdlaor")
+    @cases.xfailIf(
+        lambda self, char: bool(
+            char == "l" and self.controller.software_name == "ircu2"
+        ),
+        "https://github.com/UndernetIRC/ircu2/commit/17c539103abbd0055b2297e17854cd0756c85d62",
+    )
+    @cases.xfailIf(
+        lambda self, char: bool(
+            char == "l" and self.controller.software_name == "Nefarious"
+        ),
+        "https://github.com/evilnet/nefarious2/pull/73",
+    )
+    def testWhoxOneChar(self, char):
+        self._init()
+        if "WHOX" not in self.server_support:
+            raise runner.IsupportTokenNotSupported("WHOX")
+
+        self.sendLine(2, f"WHO coolNick %{char}")
+        messages = self.getMessages(2)
+
+        self.assertEqual(len(messages), 2, "Unexpected number of messages")
+
+        (reply, end) = messages
+
+        self.assertMessageMatch(
+            reply,
+            command=RPL_WHOSPCRPL,
+            params=[
+                "otherNick",
+                StrRe(".+"),
+            ],
+        )
+
+        self.assertMessageMatch(
+            end,
+            command=RPL_ENDOFWHO,
+            params=["otherNick", InsensitiveStr("coolNick"), ANYSTR],
+        )
+
     def testWhoxToken(self):
         """https://github.com/ircv3/ircv3-specifications/pull/482"""
         self._init()
@@ -589,7 +632,7 @@ class WhoServicesTestCase(BaseWhoTestCase, cases.BaseServerTestCase):
 class WhoInvisibleTestCase(cases.BaseServerTestCase):
     @cases.mark_specifications("Modern")
     def testWhoInvisible(self):
-        if self.controller.software_name == "Bahamut":
+        if self.controller.software_name in ("Bahamut",):
             raise runner.OptionalExtensionNotSupported("WHO mask")
 
         self.connectClient("evan", name="evan")

irctest/server_tests/whois.py

@@ -8,6 +8,7 @@ import pytest
 
 from irctest import cases
 from irctest.numerics import (
+    ERR_NOSUCHNICK,
     RPL_AWAY,
     RPL_ENDOFWHOIS,
     RPL_WHOISACCOUNT,
@@ -56,6 +57,7 @@ class _WhoisTestMixin(cases.BaseServerTestCase):
                 [m.command for m in self.getMessages(1)],
                 fail_msg="OPER failed",
             )
+            self.getMessages(1)  # make sure we did get all oper-up messages
 
         self.sendLine(1, "WHOIS nick2")
 
@@ -95,7 +97,9 @@ class _WhoisTestMixin(cases.BaseServerTestCase):
                     params=[
                         "nick1",
                         "nick2",
-                        StrRe("(@#chan1 @#chan2|@#chan2 @#chan1)"),
+                        # trailing space was required by the RFCs, and Modern explicitly
+                        # allows it
+                        StrRe("(@#chan1 @#chan2|@#chan2 @#chan1) ?"),
                     ],
                 )
             elif m.command == RPL_WHOISSPECIAL:
@@ -195,18 +199,45 @@ class WhoisTestCase(_WhoisTestMixin, cases.BaseServerTestCase):
 
         self.connectClient("otherNick")
         self.getMessages(2)
-        self.sendLine(2, f"WHOIS {server} coolnick")
+        self.sendLine(2, f"WHOIS {server} {nick}")
         messages = self.getMessages(2)
         whois_user = messages[0]
-        self.assertEqual(whois_user.command, RPL_WHOISUSER)
-        #  "<client> <nick> <username> <host> * :<realname>"
-        self.assertEqual(whois_user.params[1], nick)
-        self.assertIn(whois_user.params[2], ("~" + username, username))
+        self.assertMessageMatch(
+            whois_user,
+            command=RPL_WHOISUSER,
+            # "<client> <nick> <username> <host> * :<realname>"
+            params=[
+                "otherNick",
+                nick,
+                StrRe("~?" + username),
+                ANYSTR,
+                ANYSTR,
+                realname,
+            ],
+        )
         # dumb regression test for oragono/oragono#355:
         self.assertNotIn(
             whois_user.params[3], [nick, username, "~" + username, realname]
         )
-        self.assertEqual(whois_user.params[5], realname)
+
+    @cases.mark_specifications("RFC2812")
+    @cases.xfailIfSoftware(["Sable"], "https://github.com/Libera-Chat/sable/issues/101")
+    def testWhoisMissingUser(self):
+        """Test WHOIS on a nonexistent nickname."""
+        self.connectClient("qux", name="qux")
+        self.sendLine("qux", "WHOIS bar")
+        messages = self.getMessages("qux")
+        self.assertEqual(len(messages), 2)
+        self.assertMessageMatch(
+            messages[0],
+            command=ERR_NOSUCHNICK,
+            params=["qux", "bar", ANYSTR],
+        )
+        self.assertMessageMatch(
+            messages[1],
+            command=RPL_ENDOFWHOIS,
+            params=["qux", "bar", ANYSTR],
+        )
 
     @pytest.mark.parametrize(
         "away,oper",

irctest/server_tests/whowas.py

@@ -7,6 +7,7 @@ The WHOSWAS command  (`RFC 1459
 TODO: cross-reference Modern
 """
 
+import time
 
 import pytest
 
@@ -144,6 +145,8 @@ class WhowasTestCase(cases.BaseServerTestCase):
         except ConnectionClosed:
             pass
 
+        time.sleep(1)  # Ergo may take a little while to record the nick as free
+
         self.connectClient("nick2", ident="ident3")
         self.sendLine(3, "QUIT :bye")
         try:
@@ -151,6 +154,9 @@ class WhowasTestCase(cases.BaseServerTestCase):
         except ConnectionClosed:
             pass
 
+        if self.controller.software_name == "Sable":
+            time.sleep(1)  # may take a little while to record the historical user
+
         self.sendLine(1, whowas_command)
 
         messages = self.getMessages(1)

make_workflows.py

@@ -65,7 +65,7 @@ def get_install_steps(*, software_config, software_id, version_flavor):
         install_steps = [
             {
                 "name": f"Checkout {name}",
-                "uses": "actions/checkout@v3",
+                "uses": "actions/checkout@v4",
                 "with": {
                     "repository": software_config["repository"],
                     "ref": ref,
@@ -94,7 +94,7 @@ def get_build_job(*, software_config, software_id, version_flavor):
         cache = [
             {
                 "name": "Cache dependencies",
-                "uses": "actions/cache@v3",
+                "uses": "actions/cache@v4",
                 "with": {
                     "path": f"~/.cache\n${{ github.workspace }}/{path}\n",
                     "key": "3-${{ runner.os }}-"
@@ -123,10 +123,10 @@ def get_build_job(*, software_config, software_id, version_flavor):
                 "run": "cd ~/; mkdir -p .local/ go/",
             },
             *cache,
-            {"uses": "actions/checkout@v3"},
+            {"uses": "actions/checkout@v4"},
             {
                 "name": "Set up Python 3.11",
-                "uses": "actions/setup-python@v4",
+                "uses": "actions/setup-python@v5",
                 "with": {"python-version": 3.11},
             },
             *install_steps,
@@ -151,6 +151,7 @@ def get_test_job(*, config, test_config, test_id, version_flavor, jobs):
             env += (
                 f"PATH={software_config['prefix']}/sbin"
                 f":{software_config['prefix']}/bin"
+                f":{software_config['prefix']}"
                 f":$PATH "
             )
 
@@ -159,7 +160,7 @@ def get_test_job(*, config, test_config, test_id, version_flavor, jobs):
             downloads.append(
                 {
                     "name": "Download build artefacts",
-                    "uses": "actions/download-artifact@v3",
+                    "uses": "actions/download-artifact@v4",
                     "with": {"name": f"installed-{software_id}", "path": "~"},
                 }
             )
@@ -194,10 +195,10 @@ def get_test_job(*, config, test_config, test_id, version_flavor, jobs):
         "runs-on": "ubuntu-22.04",
         "needs": needs,
         "steps": [
-            {"uses": "actions/checkout@v3"},
+            {"uses": "actions/checkout@v4"},
             {
                 "name": "Set up Python 3.11",
-                "uses": "actions/setup-python@v4",
+                "uses": "actions/setup-python@v5",
                 "with": {"python-version": 3.11},
             },
             *downloads,
@@ -211,7 +212,7 @@ def get_test_job(*, config, test_config, test_id, version_flavor, jobs):
                 "name": "Install irctest dependencies",
                 "run": script(
                     "python -m pip install --upgrade pip",
-                    "pip install pytest pytest-xdist -r requirements.txt",
+                    "pip install pytest pytest-xdist pytest-timeout -r requirements.txt",
                     *(
                         software_config["extra_deps"]
                         if "extra_deps" in software_config
@@ -223,7 +224,7 @@ def get_test_job(*, config, test_config, test_id, version_flavor, jobs):
                 "name": "Test with pytest",
                 "timeout-minutes": 30,
                 "run": (
-                    f"PYTEST_ARGS='--junit-xml pytest.xml' "
+                    f"PYTEST_ARGS='--junit-xml pytest.xml --timeout 300' "
                     f"PATH=$HOME/.local/bin:$PATH "
                     f"{env}make {test_id}"
                 ),
@@ -231,7 +232,7 @@ def get_test_job(*, config, test_config, test_id, version_flavor, jobs):
             {
                 "name": "Publish results",
                 "if": "always()",
-                "uses": "actions/upload-artifact@v3",
+                "uses": "actions/upload-artifact@v4",
                 "with": {
                     "name": f"pytest-results_{test_id}_{version_flavor.value}",
                     "path": "pytest.xml",
@@ -250,7 +251,7 @@ def upload_steps(software_id):
         },
         {
             "name": "Upload build artefacts",
-            "uses": "actions/upload-artifact@v3",
+            "uses": "actions/upload-artifact@v4",
             "with": {
                 "name": f"installed-{software_id}",
                 "path": "~/artefacts-*.tar.gz",
@@ -311,10 +312,10 @@ def generate_workflow(config: dict, version_flavor: VersionFlavor):
         # this job then
         "if": "success() || failure()",
         "steps": [
-            {"uses": "actions/checkout@v3"},
+            {"uses": "actions/checkout@v4"},
             {
                 "name": "Download Artifacts",
-                "uses": "actions/download-artifact@v3",
+                "uses": "actions/download-artifact@v4",
                 "with": {"path": "artifacts"},
             },
             {

mypy.ini

@@ -1,5 +1,5 @@
 [mypy]
-python_version = 3.7
+python_version = 3.8
 warn_return_any = True
 warn_unused_configs = True
 

patches/inspircd_mainloop.patch

@@ -1,25 +0,0 @@
-When a client registers (ie. sends USER+NICK), InspIRCd does not
-immediately answers with 001. Instead it waits for the next iteration
-of the main loop to call `DoBackgroundUserStuff`.
-
-However, this main loop executes only once a second. This is usually
-fine, but makes irctest considerably slower, as irctest uses hundreds
-of very short-lived connections.
-
-This patch removes the frequency limitation of the main loop to make
-InspIRCd more responsive.
-
-diff --git a/src/inspircd.cpp b/src/inspircd.cpp
-index 5760e631b..1da0285fb 100644
---- a/src/inspircd.cpp
-+++ b/src/inspircd.cpp
-@@ -680,7 +680,7 @@ void InspIRCd::Run()
-		 * timing using this event, so we dont have to
-		 * time this exactly).
-		 */
--		if (TIME.tv_sec != OLDTIME)
-+		if (true)
-		{
-			CollectStats();
-			CheckTimeSkip(OLDTIME, TIME.tv_sec);
-

pyproject.toml

@@ -1,5 +1,5 @@
 [tool.black]
-target-version = ['py37']
+target-version = ['py38']
 exclude = 'irctest/scram/*'
 
 [tool.isort]

requirements.txt

@@ -1,3 +1,5 @@
+pytest
+
 # The following dependencies are actually optional:
 ecdsa
-pytest
+filelock

workflows.yml

@@ -134,9 +134,9 @@ software:
         path: ergo
         prefix: ~/go
         pre_deps:
-            - uses: actions/setup-go@v2
+            - uses: actions/setup-go@v3
               with:
-                  go-version: '^1.21.0'
+                  go-version: '^1.22.0'
             - run: go version
         separate_build_job: false
         build_script: |
@@ -148,7 +148,7 @@ software:
         name: InspIRCd
         repository: inspircd/inspircd
         refs: &inspircd_refs
-            stable: v3.15.0
+            stable: v3.17.1
             release: null
             devel: master
             devel_release: insp3
@@ -158,12 +158,7 @@ software:
         separate_build_job: true
         build_script: &inspircd_build_script |
             cd $GITHUB_WORKSPACE/inspircd/
-
-            # Insp3 <= 3.16.0 and Insp4 <= 4.0.0a21 don't support -DINSPIRCD_UNLIMITED_MAINLOOP
-            patch src/inspircd.cpp < $GITHUB_WORKSPACE/patches/inspircd_mainloop.patch || true
-
             ./configure --prefix=$HOME/.local/inspircd --development
-
             CXXFLAGS=-DINSPIRCD_UNLIMITED_MAINLOOP make -j 4
             make install
     irc2:
@@ -235,7 +230,7 @@ software:
         name: ngircd
         repository: ngircd/ngircd
         refs:
-            stable: rel-26.1
+            stable: 3e3f6cbeceefd9357b53b27c2386bb39306ab353 # three years ahead of rel-26.1
             release: null
             devel: master
             devel_release: null
@@ -250,6 +245,34 @@ software:
             make -j 4
             make install
 
+    sable:
+        name: Sable
+        repository: Libera-Chat/sable
+        refs:
+            stable: e9701e5e8d0c4f278ddd61ce7285f4918ecf99e9
+            release: null
+            devel: master
+            devel_release: null
+        path: sable
+        prefix: "$GITHUB_WORKSPACE/sable/target/debug"
+        pre_deps:
+            - name: Install rust toolchain
+              uses: actions-rs/toolchain@v1
+              with:
+                  toolchain: nightly
+                  profile: minimal
+                  override: true
+            - name: Enable Cargo cache
+              uses: Swatinem/rust-cache@v2
+              with:
+                workspaces: "sable -> target"
+                cache-on-failure: true
+            - run: rustc --version
+        separate_build_job: false
+        build_script: |
+            cd $GITHUB_WORKSPACE/sable/
+            cargo build
+
     snircd:
         name: snircd
         repository: quakenet/snircd
@@ -320,16 +343,16 @@ software:
         separate_build_job: true
         path: anope
         refs:
-            stable: "2.0.9"
-            release: "2.0.9"
-            devel: "2.0.9"
-            devel_release: "2.0.9"
+            stable: "2.0.14"
+            release: "2.1.1"
+            devel: "2.1"
+            devel_release: "2.0"
         build_script: |
             cd $GITHUB_WORKSPACE/anope/
-            cp $GITHUB_WORKSPACE/data/anope/* .
-            CFLAGS=-O0 ./Config -quick
-            make -C build -j 4
-            make -C build install
+            sudo apt-get install ninja-build --no-install-recommends
+            mkdir build && cd build
+            cmake -DCMAKE_INSTALL_PREFIX=$HOME/.local/ -DPROGRAM_NAME=anope -DUSE_PCH=ON -GNinja ..
+            ninja install
 
     dlk:
         name: Dlk
@@ -337,8 +360,8 @@ software:
         separate_build_job: false
         path: Dlk-Services
         refs:
-            stable: &dlk_stable "6db51ea03f039c48fd20427c04cec8ff98df7878"
-            release: *dlk_stable
+            stable: null  # disabled because flaky, and hard to debug with all the PHP 8 warnings
+            release: &dlk_stable "6db51ea03f039c48fd20427c04cec8ff98df7878"
             devel: "main"
             devel_release: *dlk_stable
         build_script: |
@@ -366,7 +389,7 @@ software:
                   run: pip install limnoria cryptography pyxmpp2-scram
             devel:
                 - name: Install dependencies
-                  run: pip install git+https://github.com/ProgVal/Limnoria.git@testing cryptography pyxmpp2-scram
+                  run: pip install git+https://github.com/progval/Limnoria.git@master cryptography pyxmpp2-scram
             devel_release: null
 
     sopel:
@@ -454,6 +477,9 @@ tests:
     nefarious:
         software: [nefarious]
 
+    sable:
+        software: [sable]
+
     # doesn't build because it can't find liblex for some reason
     #snircd:
     #    software: [snircd]