ratatui/tests/widgets_barchart.rs
2023-03-17 17:03:49 +01:00

40 lines
1.7 KiB
Rust

use ratatui::backend::TestBackend;
use ratatui::buffer::Buffer;
use ratatui::widgets::{BarChart, Block, Borders};
use ratatui::Terminal;
#[test]
fn widgets_barchart_not_full_below_max_value() {
let test_case = |expected| {
let backend = TestBackend::new(30, 10);
let mut terminal = Terminal::new(backend).unwrap();
terminal
.draw(|f| {
let size = f.size();
let barchart = BarChart::default()
.block(Block::default().borders(Borders::ALL))
.data(&[("empty", 0), ("half", 50), ("almost", 99), ("full", 100)])
.max(100)
.bar_width(7)
.bar_gap(0);
f.render_widget(barchart, size);
})
.unwrap();
terminal.backend().assert_buffer(&expected);
};
// check that bars fill up correctly up to max value
test_case(Buffer::with_lines(vec![
"┌────────────────────────────┐",
"│ ▇▇▇▇▇▇▇███████│",
"│ ██████████████│",
"│ ██████████████│",
"│ ▄▄▄▄▄▄▄██████████████│",
"│ █████████████████████│",
"│ █████████████████████│",
"│ ██50█████99█████100██│",
"│empty half almost full │",
"└────────────────────────────┘",
]));
}