tui-rs/tests/chart.rs

use tui::backend::TestBackend;
use tui::layout::Rect;
use tui::style::{Color, Style};
use tui::widgets::{Axis, Block, Borders, Chart, Dataset, Marker};
use tui::Terminal;

#[test]
fn zero_axes_ok() {
    let backend = TestBackend::new(100, 100);
    let mut terminal = Terminal::new(backend).unwrap();

    terminal
        .draw(|mut f| {
            let datasets = [Dataset::default()
                .marker(Marker::Braille)
                .style(Style::default().fg(Color::Magenta))
                .data(&[(0.0, 0.0)])];
            let chart = Chart::default()
                .block(Block::default().title("Plot").borders(Borders::ALL))
                .x_axis(Axis::default().bounds([0.0, 0.0]).labels(&["0.0", "1.0"]))
                .y_axis(Axis::default().bounds([0.0, 1.0]).labels(&["0.0", "1.0"]))
                .datasets(&datasets);
            f.render_widget(
                chart,
                Rect {
                    x: 0,
                    y: 0,
                    width: 100,
                    height: 100,
                },
            );
        })
        .unwrap();
}