Function test_plot_subplots

tests/test_plot.rs:208–244

()

#[test]
fn test_plot_subplots() -> Result<(), StrError> {
    // curve object and options
    let mut curve = Curve::new();

    // draw curve
    let x = &[1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0];
    let y = &[1.0, 4.0, 9.0, 16.0, 25.0, 36.0, 49.0, 64.0];
    curve.draw(x, y);

    // params for super title
    let mut params = SuperTitleParams::new();
    params.set_align_vertical("bottom");

    // configure plot
    let mut plot = Plot::new();
    plot.set_super_title("\"$\\int$ Plot's Owner Says $\\mathrm{d}\\sigma$\": This is the \"super title\", \\n followed by a very long text to see \\n if this whole thing will be wrapped or not \\n we hope that it gets wrapped and beautifully formatted.\"", Some(&params))
        .set_horizontal_gap(0.5)
        .set_vertical_gap(0.5)
        .set_gaps(0.3, 0.3);

    // add curve to subplots
    plot.set_subplot(2, 2, 1).set_title("\"Owner's First\"").add(&curve);
    plot.set_subplot(2, 2, 2).set_title("\"Owner's Second\"").add(&curve);
    plot.set_subplot(2, 2, 3).set_title("\"Owner's Third\"").add(&curve);
    plot.set_subplot(2, 2, 4).set_title("\"Owner's Fourth\"").add(&curve);

    // save figure
    let path = Path::new(OUT_DIR).join("integ_plot_subplots.svg");
    plot.save(&path)?;

    // check number of lines
    let file = File::open(path).map_err(|_| "cannot open file")?;
    let buffered = BufReader::new(file);
    let lines_iter = buffered.lines();
    assert!(lines_iter.count() > 1450);
    Ok(())
}

#[test]
fn test_plot_log() -> Result<(), StrError> {