ratatui/tests/widgets_barchart.rs
EdJoPaTo f97e07c08a
feat(frame): replace Frame::size() with Frame::area() (#1293)
Area is the more correct term for the result of this method.
The Frame::size() method is marked as deprecated and will be
removed around Ratatui version 0.30 or later.

Fixes: https://github.com/ratatui-org/ratatui/pull/1254#issuecomment-2268061409
2024-08-05 20:15:14 -07:00

93 lines
4 KiB
Rust

use ratatui::{
backend::TestBackend,
buffer::Buffer,
style::{Color, Style},
widgets::{Bar, BarChart, BarGroup, Block},
Terminal,
};
// check that bars fill up correctly up to max value
#[test]
fn widgets_barchart_not_full_below_max_value() {
let backend = TestBackend::new(30, 10);
let mut terminal = Terminal::new(backend).unwrap();
terminal
.draw(|f| {
let barchart = BarChart::default()
.block(Block::bordered())
.data(&[("empty", 0), ("half", 50), ("almost", 99), ("full", 100)])
.max(100)
.bar_width(7)
.bar_gap(0);
f.render_widget(barchart, f.area());
})
.unwrap();
terminal.backend().assert_buffer_lines([
"┌────────────────────────────┐",
"│ ▇▇▇▇▇▇▇███████│",
"│ ██████████████│",
"│ ██████████████│",
"│ ▄▄▄▄▄▄▄██████████████│",
"│ █████████████████████│",
"│ █████████████████████│",
"│ ██50█████99█████100██│",
"│ empty half almost full │",
"└────────────────────────────┘",
]);
}
#[test]
fn widgets_barchart_group() {
const TERMINAL_HEIGHT: u16 = 11;
let backend = TestBackend::new(35, TERMINAL_HEIGHT);
let mut terminal = Terminal::new(backend).unwrap();
terminal
.draw(|f| {
let barchart = BarChart::default()
.block(Block::bordered())
.data(
BarGroup::default().label("Mar".into()).bars(&[
Bar::default()
.value(10)
.label("C1".into())
.style(Style::default().fg(Color::Red))
.value_style(Style::default().fg(Color::Blue)),
Bar::default()
.value(20)
.style(Style::default().fg(Color::Green))
.text_value("20M".to_string()),
]),
)
.data(&vec![("C1", 50), ("C2", 40)])
.data(&[("C1", 60), ("C2", 90)])
.data(&[("xx", 10), ("xx", 10)])
.group_gap(2)
.bar_width(4)
.bar_gap(1);
f.render_widget(barchart, f.area());
})
.unwrap();
let mut expected = Buffer::with_lines([
"┌─────────────────────────────────┐",
"│ ████│",
"│ ████│",
"│ ▅▅▅▅ ████│",
"│ ▇▇▇▇ ████ ████│",
"│ ████ ████ ████ ████│",
"│ ▄▄▄▄ ████ ████ ████ ████│",
"│▆10▆ 20M█ █50█ █40█ █60█ █90█│",
"│ C1 C1 C2 C1 C2 │",
"│Mar │",
"└─────────────────────────────────┘",
]);
for y in 1..(TERMINAL_HEIGHT - 3) {
for x in 1..5 {
expected.get_mut(x, y).set_fg(Color::Red);
expected.get_mut(x + 5, y).set_fg(Color::Green);
}
}
expected.get_mut(2, 7).set_fg(Color::Blue);
expected.get_mut(3, 7).set_fg(Color::Blue);
terminal.backend().assert_buffer(&expected);
}