Add tests for backlog rendering
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344
tests/components/backlog.rs
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344
tests/components/backlog.rs
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/*
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* Copyright (C) 2023 Valentin Lorentz
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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use color_eyre::eyre::WrapErr;
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use pretty_assertions::assert_eq;
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use ratatui::prelude::*;
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use ratatrix::buffers::BufferItem;
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use ratatrix::components::Backlog;
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use ratatrix::widgets::Prerender;
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fn rect(x: u16, y: u16, width: u16, height: u16) -> Rect {
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Rect {
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x,
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y,
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width,
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height,
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}
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}
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#[test]
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fn test_single_item() {
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let mut bl = Backlog::default();
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let prerender = Prerender::new();
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let item = BufferItem {
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text: Text::raw("hello"),
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prerender: &prerender,
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};
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let mut buf = Buffer::empty(rect(0, 0, 18, 8));
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bl.draw_items(&mut buf, rect(3, 2, 12, 4), vec![item].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │hello │ ",
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" └──────────┘ ",
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" ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_single_item_cached() {
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let mut bl = Backlog::default();
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let prerender = Prerender::new();
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let item = BufferItem {
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text: Text::raw("hello"),
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prerender: &prerender,
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};
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let mut buf = Buffer::empty(rect(0, 0, 18, 8));
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let area = rect(3, 2, 12, 4);
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bl.draw_items(&mut buf, area, vec![item].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │hello │ ",
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" └──────────┘ ",
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" ",
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" ",
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]);
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assert_eq!(buf, expected);
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assert_eq!(prerender.key(), Some(10));
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let item = BufferItem {
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text: Text::raw("hello"),
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prerender: &prerender,
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};
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bl.draw_items(&mut buf, area, vec![item].into_iter())
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.context("Failed to draw")
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.unwrap();
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_single_item_tight() {
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let mut bl = Backlog::default();
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let prerender = Prerender::new();
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let item = BufferItem {
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text: Text::raw("hello"),
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prerender: &prerender,
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};
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let mut buf = Buffer::empty(rect(0, 0, 13, 7));
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bl.draw_items(&mut buf, rect(3, 2, 7, 3), vec![item].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ",
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" ┌─────┐ ",
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" │hello│ ",
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" └─────┘ ",
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" ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_two_items() {
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let mut bl = Backlog::default();
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let prerender1 = Prerender::new();
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let prerender2 = Prerender::new();
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let item2 = BufferItem {
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text: Text::raw("world"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │hi │ ",
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" │world │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_two_items_scroll() {
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let mut bl = Backlog::default();
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let prerender1 = Prerender::new();
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let prerender2 = Prerender::new();
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let item2 = BufferItem {
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text: Text::raw("world"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │hi │ ",
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" │world │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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bl.scroll_up(1);
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let item2 = BufferItem {
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text: Text::raw("world"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │ │ ",
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" │hi │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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bl.scroll_up(1);
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let item2 = BufferItem {
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text: Text::raw("world"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │ │ ",
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" │ │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_two_items_multiline() {
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let mut bl = Backlog::default();
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let prerender1 = Prerender::new();
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let prerender2 = Prerender::new();
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let item2 = BufferItem {
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text: Text::raw("world\n!"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │hi │ ",
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" │world │ ",
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" │! │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_two_items_tight() {
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let mut bl = Backlog::default();
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let prerender1 = Prerender::new();
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let prerender2 = Prerender::new();
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let item2 = BufferItem {
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text: Text::raw("world"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 9, 6));
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bl.draw_items(&mut buf, rect(1, 1, 7, 4), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌─────┐ ",
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" │hi │ ",
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" │world│ ",
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" └─────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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#[test]
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fn test_cache_moved() {
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let mut bl = Backlog::default();
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let prerender1 = Prerender::new();
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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// Draw once
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │ │ ",
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" │hi │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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// New item added at bottom
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let item1 = BufferItem {
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text: Text::raw("hi"),
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prerender: &prerender1,
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};
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let prerender2 = Prerender::new();
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let item2 = BufferItem {
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text: Text::raw("world"),
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prerender: &prerender2,
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};
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let mut buf = Buffer::empty(rect(0, 0, 14, 7));
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bl.draw_items(&mut buf, rect(1, 1, 12, 5), vec![item2, item1].into_iter())
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.context("Failed to draw")
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.unwrap();
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let expected = Buffer::with_lines(vec![
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" ",
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" ┌──────────┐ ",
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" │ │ ",
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" │hi │ ",
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" │world │ ",
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" └──────────┘ ",
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" ",
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]);
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assert_eq!(buf, expected);
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}
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