Vendor dependencies
Let's see how I like this workflow.
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7500 changed files with 1665121 additions and 99 deletions
200
vendor/tui/tests/widgets_list.rs
vendored
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200
vendor/tui/tests/widgets_list.rs
vendored
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@ -0,0 +1,200 @@
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use tui::{
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backend::TestBackend,
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buffer::Buffer,
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layout::Rect,
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style::{Color, Style},
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symbols,
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text::Spans,
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widgets::{Block, Borders, List, ListItem, ListState},
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Terminal,
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};
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#[test]
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fn widgets_list_should_highlight_the_selected_item() {
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let backend = TestBackend::new(10, 3);
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let mut terminal = Terminal::new(backend).unwrap();
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let mut state = ListState::default();
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state.select(Some(1));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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];
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let list = List::new(items)
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.highlight_style(Style::default().bg(Color::Yellow))
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.highlight_symbol(">> ");
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let mut expected = Buffer::with_lines(vec![" Item 1 ", ">> Item 2 ", " Item 3 "]);
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for x in 0..10 {
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expected.get_mut(x, 1).set_bg(Color::Yellow);
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}
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terminal.backend().assert_buffer(&expected);
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}
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#[test]
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fn widgets_list_should_truncate_items() {
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let backend = TestBackend::new(10, 2);
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let mut terminal = Terminal::new(backend).unwrap();
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struct TruncateTestCase<'a> {
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selected: Option<usize>,
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items: Vec<ListItem<'a>>,
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expected: Buffer,
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}
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let cases = vec![
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// An item is selected
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TruncateTestCase {
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selected: Some(0),
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items: vec![
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ListItem::new("A very long line"),
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ListItem::new("A very long line"),
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],
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expected: Buffer::with_lines(vec![
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format!(">> A ve{} ", symbols::line::VERTICAL),
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format!(" A ve{} ", symbols::line::VERTICAL),
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]),
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},
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// No item is selected
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TruncateTestCase {
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selected: None,
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items: vec![
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ListItem::new("A very long line"),
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ListItem::new("A very long line"),
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],
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expected: Buffer::with_lines(vec![
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format!("A very {} ", symbols::line::VERTICAL),
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format!("A very {} ", symbols::line::VERTICAL),
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]),
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},
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];
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for case in cases {
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let mut state = ListState::default();
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state.select(case.selected);
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terminal
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.draw(|f| {
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let list = List::new(case.items.clone())
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.block(Block::default().borders(Borders::RIGHT))
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.highlight_symbol(">> ");
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f.render_stateful_widget(list, Rect::new(0, 0, 8, 2), &mut state);
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})
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.unwrap();
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terminal.backend().assert_buffer(&case.expected);
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}
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}
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#[test]
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fn widgets_list_should_clamp_offset_if_items_are_removed() {
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let backend = TestBackend::new(10, 4);
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let mut terminal = Terminal::new(backend).unwrap();
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let mut state = ListState::default();
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// render with 6 items => offset will be at 2
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state.select(Some(5));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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];
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let list = List::new(items).highlight_symbol(">> ");
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![" Item 2 ", " Item 3 ", " Item 4 ", ">> Item 5 "]);
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terminal.backend().assert_buffer(&expected);
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// render again with 1 items => check offset is clamped to 1
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state.select(Some(1));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![ListItem::new("Item 3")];
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let list = List::new(items).highlight_symbol(">> ");
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![" Item 3 ", " ", " ", " "]);
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terminal.backend().assert_buffer(&expected);
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}
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#[test]
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fn widgets_list_should_display_multiline_items() {
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let backend = TestBackend::new(10, 6);
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let mut terminal = Terminal::new(backend).unwrap();
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let mut state = ListState::default();
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state.select(Some(1));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new(vec![Spans::from("Item 1"), Spans::from("Item 1a")]),
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ListItem::new(vec![Spans::from("Item 2"), Spans::from("Item 2b")]),
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ListItem::new(vec![Spans::from("Item 3"), Spans::from("Item 3c")]),
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];
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let list = List::new(items)
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.highlight_style(Style::default().bg(Color::Yellow))
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.highlight_symbol(">> ");
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let mut expected = Buffer::with_lines(vec![
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" Item 1 ",
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" Item 1a",
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">> Item 2 ",
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" Item 2b",
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" Item 3 ",
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" Item 3c",
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]);
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for x in 0..10 {
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expected.get_mut(x, 2).set_bg(Color::Yellow);
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expected.get_mut(x, 3).set_bg(Color::Yellow);
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}
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terminal.backend().assert_buffer(&expected);
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}
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#[test]
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fn widgets_list_should_repeat_highlight_symbol() {
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let backend = TestBackend::new(10, 6);
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let mut terminal = Terminal::new(backend).unwrap();
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let mut state = ListState::default();
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state.select(Some(1));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new(vec![Spans::from("Item 1"), Spans::from("Item 1a")]),
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ListItem::new(vec![Spans::from("Item 2"), Spans::from("Item 2b")]),
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ListItem::new(vec![Spans::from("Item 3"), Spans::from("Item 3c")]),
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];
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let list = List::new(items)
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.highlight_style(Style::default().bg(Color::Yellow))
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let mut expected = Buffer::with_lines(vec![
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" Item 1 ",
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" Item 1a",
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">> Item 2 ",
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">> Item 2b",
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" Item 3 ",
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" Item 3c",
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]);
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for x in 0..10 {
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expected.get_mut(x, 2).set_bg(Color::Yellow);
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expected.get_mut(x, 3).set_bg(Color::Yellow);
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}
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terminal.backend().assert_buffer(&expected);
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}
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