mirror of
https://github.com/ratatui-org/ratatui
synced 2024-11-22 04:33:13 +00:00
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.
112 lines
2.8 KiB
Rust
112 lines
2.8 KiB
Rust
use std::io;
|
|
|
|
use ratatui::{
|
|
backend::TestBackend,
|
|
buffer::Buffer,
|
|
layout::Rect,
|
|
style::{Color, Style, Stylize},
|
|
widgets::{BarChart, Block, Paragraph},
|
|
Terminal,
|
|
};
|
|
|
|
#[test]
|
|
fn barchart_can_be_stylized() {
|
|
let barchart = BarChart::default()
|
|
.on_white()
|
|
.bar_style(Style::new().red())
|
|
.bar_width(2)
|
|
.value_style(Style::new().green())
|
|
.label_style(Style::new().blue())
|
|
.data(&[("A", 1), ("B", 2), ("C", 3)])
|
|
.max(3);
|
|
|
|
let area = Rect::new(0, 0, 9, 5);
|
|
let mut terminal = Terminal::new(TestBackend::new(9, 6)).unwrap();
|
|
terminal
|
|
.draw(|f| {
|
|
f.render_widget(barchart, area);
|
|
})
|
|
.unwrap();
|
|
|
|
let mut expected = Buffer::with_lines([
|
|
" ██ ",
|
|
" ▅▅ ██ ",
|
|
"▂▂ ██ ██ ",
|
|
"1█ 2█ 3█ ",
|
|
"A B C ",
|
|
" ",
|
|
]);
|
|
for y in area.y..area.height {
|
|
// background
|
|
for x in area.x..area.width {
|
|
expected.get_mut(x, y).set_bg(Color::White);
|
|
}
|
|
// bars
|
|
for x in [0, 1, 3, 4, 6, 7] {
|
|
expected.get_mut(x, y).set_fg(Color::Red);
|
|
}
|
|
}
|
|
// values
|
|
for x in 0..3 {
|
|
expected.get_mut(x * 3, 3).set_fg(Color::Green);
|
|
}
|
|
// labels
|
|
for x in 0..3 {
|
|
expected.get_mut(x * 3, 4).set_fg(Color::Blue);
|
|
expected.get_mut(x * 3 + 1, 4).set_fg(Color::Reset);
|
|
}
|
|
terminal.backend().assert_buffer(&expected);
|
|
}
|
|
|
|
#[test]
|
|
fn block_can_be_stylized() -> io::Result<()> {
|
|
let block = Block::bordered()
|
|
.title("Title".light_blue())
|
|
.on_cyan()
|
|
.cyan();
|
|
|
|
let area = Rect::new(0, 0, 8, 3);
|
|
let mut terminal = Terminal::new(TestBackend::new(11, 4))?;
|
|
terminal.draw(|f| {
|
|
f.render_widget(block, area);
|
|
})?;
|
|
|
|
#[rustfmt::skip]
|
|
let mut expected = Buffer::with_lines([
|
|
"┌Title─┐ ",
|
|
"│ │ ",
|
|
"└──────┘ ",
|
|
" ",
|
|
]);
|
|
for x in area.x..area.width {
|
|
for y in area.y..area.height {
|
|
expected
|
|
.get_mut(x, y)
|
|
.set_fg(Color::Cyan)
|
|
.set_bg(Color::Cyan);
|
|
}
|
|
}
|
|
for x in 1..=5 {
|
|
expected.get_mut(x, 0).set_fg(Color::LightBlue);
|
|
}
|
|
terminal.backend().assert_buffer(&expected);
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn paragraph_can_be_stylized() -> io::Result<()> {
|
|
let paragraph = Paragraph::new("Text".cyan());
|
|
|
|
let area = Rect::new(0, 0, 10, 1);
|
|
let mut terminal = Terminal::new(TestBackend::new(10, 1))?;
|
|
terminal.draw(|f| {
|
|
f.render_widget(paragraph, area);
|
|
})?;
|
|
|
|
let mut expected = Buffer::with_lines(["Text "]);
|
|
for x in 0..4 {
|
|
expected.get_mut(x, 0).set_fg(Color::Cyan);
|
|
}
|
|
terminal.backend().assert_buffer(&expected);
|
|
Ok(())
|
|
}
|