diff --git a/irctest/server_tests/test_readq.py b/irctest/server_tests/test_readq.py
new file mode 100644
index 0000000..e5abf31
--- /dev/null
+++ b/irctest/server_tests/test_readq.py
@@ -0,0 +1,19 @@
+from irctest import cases
+
+
+class ReadqTestCase(cases.BaseServerTestCase):
+    """Test responses to DoS attacks using long lines."""
+
+    @cases.SpecificationSelector.requiredBySpecification('Oragono')
+    def testReadqTags(self):
+        self.connectClient('mallory', name='mallory', capabilities=['message-tags'])
+        self.joinChannel('mallory', '#test')
+        self.sendLine('mallory', 'PRIVMSG #test ' + 'a' * 16384)
+        self.assertDisconnected('mallory')
+
+    @cases.SpecificationSelector.requiredBySpecification('Oragono')
+    def testReadqNoTags(self):
+        self.connectClient('mallory', name='mallory')
+        self.joinChannel('mallory', '#test')
+        self.sendLine('mallory', 'PRIVMSG #test ' + 'a' * 16384)
+        self.assertDisconnected('mallory')