Function test_barplot_3

tests/test_barplot.rs:80–108

()

#[test]
fn test_barplot_3() -> Result<(), StrError> {
    // data
    let fruits = [1.0, 2.0, 3.0];
    let prices = [10.0, 20.0, 30.0];
    let errors = [3.0, 2.0, 1.0];

    // barplot object and options
    let mut bar = Barplot::new();
    bar.set_errors(&errors)
        .set_horizontal(true)
        .set_with_text("edge")
        .draw(&fruits, &prices);

    // plot
    let mut plot = Plot::new();
    plot.set_inv_y().add(&bar);

    // save figure
    let path = Path::new(OUT_DIR).join("integ_barplot_3.svg");
    plot.set_title("Fruits").set_label_x("price").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();
    let c = lines_iter.count();
    assert!(c > 660 && c < 700);
    Ok(())
}

#[test]
fn test_barplot_4() -> Result<(), StrError> {