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https://github.com/ratatui/ratatui.git
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2cfe82a47e
- Simplify `assert_buffer_eq!` logic. - Deprecate `assert_buffer_eq!`. - Introduce `TestBackend::assert_buffer_lines`. Also simplify many tests involving buffer comparisons. For the deprecation, just use `assert_eq` instead of `assert_buffer_eq`: ```diff -assert_buffer_eq!(actual, expected); +assert_eq!(actual, expected); ``` --- I noticed `assert_buffer_eq!` creating no test coverage reports and looked into this macro. First I simplified it. Then I noticed a bunch of `assert_eq!(buffer, …)` and other indirect usages of this macro (like `TestBackend::assert_buffer`). The good thing here is that it's mainly used in tests so not many changes to the library code.
96 lines
4.0 KiB
Rust
96 lines
4.0 KiB
Rust
use ratatui::{
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backend::TestBackend,
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buffer::Buffer,
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style::{Color, Style},
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widgets::{Bar, BarChart, BarGroup, Block},
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Terminal,
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};
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// check that bars fill up correctly up to max value
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#[test]
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fn widgets_barchart_not_full_below_max_value() {
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let backend = TestBackend::new(30, 10);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let barchart = BarChart::default()
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.block(Block::bordered())
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.data(&[("empty", 0), ("half", 50), ("almost", 99), ("full", 100)])
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.max(100)
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.bar_width(7)
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.bar_gap(0);
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f.render_widget(barchart, size);
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})
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.unwrap();
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terminal.backend().assert_buffer_lines([
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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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"│ ██50█████99█████100██│",
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"│ empty half almost full │",
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"└────────────────────────────┘",
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]);
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}
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#[test]
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fn widgets_barchart_group() {
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const TERMINAL_HEIGHT: u16 = 11;
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let backend = TestBackend::new(35, TERMINAL_HEIGHT);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let barchart = BarChart::default()
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.block(Block::bordered())
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.data(
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BarGroup::default().label("Mar".into()).bars(&[
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Bar::default()
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.value(10)
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.label("C1".into())
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.style(Style::default().fg(Color::Red))
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.value_style(Style::default().fg(Color::Blue)),
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Bar::default()
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.value(20)
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.style(Style::default().fg(Color::Green))
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.text_value("20M".to_string()),
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]),
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)
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.data(&vec![("C1", 50), ("C2", 40)])
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.data(&[("C1", 60), ("C2", 90)])
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.data(&[("xx", 10), ("xx", 10)])
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.group_gap(2)
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.bar_width(4)
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.bar_gap(1);
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f.render_widget(barchart, size);
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})
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.unwrap();
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let mut expected = Buffer::with_lines([
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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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"│▆10▆ 20M█ █50█ █40█ █60█ █90█│",
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"│ C1 C1 C2 C1 C2 │",
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"│Mar │",
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"└─────────────────────────────────┘",
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]);
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for y in 1..(TERMINAL_HEIGHT - 3) {
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for x in 1..5 {
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expected.get_mut(x, y).set_fg(Color::Red);
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expected.get_mut(x + 5, y).set_fg(Color::Green);
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}
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}
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expected.get_mut(2, 7).set_fg(Color::Blue);
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expected.get_mut(3, 7).set_fg(Color::Blue);
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terminal.backend().assert_buffer(&expected);
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}
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