File: parser.rs

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rust-csscolorparser 0.7.2-1
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use csscolorparser::{parse, Color};

#[test]
fn parser() {
    let test_data = [
        ("transparent", [0, 0, 0, 0]),
        ("TRANSPARENT", [0, 0, 0, 0]),
        ("#ff00ff64", [255, 0, 255, 100]),
        ("ff00ff64", [255, 0, 255, 100]),
        ("rgb(247,179,99)", [247, 179, 99, 255]),
        ("rgb(50% 50% 50%)", [128, 128, 128, 255]),
        ("rgb(247,179,99,0.37)", [247, 179, 99, 94]),
        ("hsl(270 0% 50%)", [128, 128, 128, 255]),
        ("hwb(0 50% 50%)", [128, 128, 128, 255]),
        ("hsv(0 0% 50%)", [128, 128, 128, 255]),
        ("hsv(0 0% 100%)", [255, 255, 255, 255]),
        ("hsv(0 0% 19%)", [48, 48, 48, 255]),
    ];

    for (s, expected) in test_data {
        let a = parse(s).unwrap().to_rgba8();
        let b = s.parse::<Color>().unwrap().to_rgba8();
        let c = Color::from_html(s).unwrap().to_rgba8();
        assert_eq!(expected, a);
        assert_eq!(expected, b);
        assert_eq!(expected, c);
    }

    #[cfg(feature = "lab")]
    {
        let test_data = [
            ("lab(0% 0 0)", [0, 0, 0, 255]),
            ("lab(100% 0 0)", [255, 255, 255, 255]),
            ("lab(0% 0 0 / 0.5)", [0, 0, 0, 128]),
            ("lch(0% 0 0)", [0, 0, 0, 255]),
            ("lch(100% 0 0)", [255, 255, 255, 255]),
            ("lch(0% 0 0 / 0.5)", [0, 0, 0, 128]),
        ];

        for (s, expected) in test_data {
            assert_eq!(expected, parse(s).unwrap().to_rgba8());
        }
    }
}

#[test]
fn equal() {
    let test_data = [
        ("transparent", "rgb(0,0,0,0%)"),
        ("#FF9900", "#f90"),
        ("#aabbccdd", "#ABCD"),
        ("#BAD455", "BAD455"),
        ("rgb(0 255 127 / 75%)", "rgb(0,255,127,0.75)"),
        ("hwb(180 0% 60%)", "hwb(180,0%,60%)"),
        ("hwb(290 30% 0%)", "hwb(290 0.3 0)"),
        ("hsl(180,50%,27%)", "hsl(180,0.5,0.27)"),
        ("rgb(255, 165, 0)", "hsl(38.824 100% 50%)"),
        ("#7654CD", "rgb(46.27% 32.94% 80.39%)"),
        //#[cfg(feature = "lab")]
        //("#7654CD", "lab(44.36% 36.05 -58.99)"),
    ];

    for (a, b) in test_data {
        let c1 = parse(a).unwrap();
        let c2 = parse(b).unwrap();
        assert_eq!(c1.to_rgba8(), c2.to_rgba8(), "{:?}", [a, b]);
    }
}

#[test]
fn black() {
    let data = [
        "#000",
        "#000f",
        "#000000",
        "#000000ff",
        "000",
        "000f",
        "000000",
        "000000ff",
        "rgb(0,0,0)",
        "rgb(0% 0% 0%)",
        "rgb(0 0 0 100%)",
        "hsl(270,100%,0%)",
        "hwb(90 0% 100%)",
        "hwb(120deg 0% 100% 100%)",
        "hsv(120 100% 0%)",
        "oklab(0 0 0)",
        "oklch(0 0 180)",
    ];

    let black = [0, 0, 0, 255];

    for s in data {
        let c = parse(s).unwrap().to_rgba8();
        assert_eq!(black, c);
    }
}

#[test]
fn red() {
    let data = [
        "#f00",
        "#f00f",
        "#ff0000",
        "#ff0000ff",
        "f00",
        "f00f",
        "ff0000",
        "ff0000ff",
        "rgb(255,0,0)",
        "rgb(255 0 0)",
        "rgb(700, -99, 0)", // clamp to 0..255
        "rgb(100% 0% 0%)",
        "rgb(200% -10% -100%)", // clamp to 0%..100%
        "rgb(255 0 0 100%)",
        " RGB ( 255 , 0 , 0 ) ",
        "RGB( 255   0   0 )",
        "hsl(0,100%,50%)",
        "hsl(360 100% 50%)",
        "hwb(0 0% 0%)",
        "hwb(360deg 0% 0% 100%)",
        "hwb(360DEG 0% 0% 100%)",
        "hsv(0 100% 100%)",
        "oklab(0.62796, 0.22486, 0.12585)",
        "oklch(0.62796, 0.25768, 29.23388)",
    ];

    let red = [255, 0, 0, 255];

    for s in data {
        let res = parse(s);
        assert!(res.is_ok(), "{:?}", s);
        let c = res.unwrap().to_rgba8();
        assert_eq!(red, c);
    }
}

#[test]
fn lime() {
    let data = [
        "#0f0",
        "#0f0f",
        "#00ff00",
        "#00ff00ff",
        "0f0",
        "0f0f",
        "00ff00",
        "00ff00ff",
        "rgb(0,255,0)",
        "rgb(0% 100% 0%)",
        "rgb(0 255 0 / 100%)",
        "rgba(0,255,0,1)",
        "hsl(120,100%,50%)",
        "hsl(120deg 100% 50%)",
        "hsl(-240 100% 50%)",
        "hsl(-240deg 100% 50%)",
        "hsl(0.3333turn 100% 50%)",
        "hsl(0.3333TURN 100% 50%)",
        "hsl(133.333grad 100% 50%)",
        "hsl(133.333GRAD 100% 50%)",
        "hsl(2.0944rad 100% 50%)",
        "hsl(2.0944RAD 100% 50%)",
        "hsla(120,100%,50%,100%)",
        "hwb(120 0% 0%)",
        "hwb(480deg 0% 0% / 100%)",
        "hsv(120 100% 100%)",
        "oklab(0.86644, -0.23389, 0.1795)",
        "oklch(0.86644, 0.29483, 142.49535)",
    ];

    let lime = [0, 255, 0, 255];

    for s in data {
        let res = parse(s);
        assert!(res.is_ok(), "{:?}", s);
        let c = res.unwrap().to_rgba8();
        assert_eq!(lime, c);
    }
}

#[test]
fn lime_alpha() {
    let data = [
        "#00ff0080",
        "00ff0080",
        "rgb(0,255,0,50%)",
        "rgb(0% 100% 0% / 0.5)",
        "rgba(0%,100%,0%,50%)",
        "hsl(120,100%,50%,0.5)",
        "hsl(120deg 100% 50% / 50%)",
        "hsla(120,100%,50%,0.5)",
        "hwb(120 0% 0% / 50%)",
        "hsv(120 100% 100% / 50%)",
    ];

    let lime_alpha = [0, 255, 0, 128];

    for s in data {
        let c = parse(s).unwrap().to_rgba8();
        assert_eq!(lime_alpha, c);
    }
}

#[cfg(all(feature = "named-colors", feature = "lab"))]
#[test]
fn invalid_format() {
    let test_data = [
        "",
        "bloodred",
        "#78afzd",
        "#fffff",
        "rgb(255,0,0",
        "rgb(0,255,8s)",
        "rgb(100%,z9%,75%)",
        "rgb(255,0,0%)",  // mix format
        "rgb(70%,30%,0)", // mix format
        "cmyk(1 0 0)",
        "rgba(0 0)",
        "hsl(90',100%,50%)",
        "hsl(360,70%,50%,90%,100%)",
        "hsl(deg 100% 50%)",
        "hsl(Xturn 100% 50%)",
        "hsl(Zgrad 100% 50%)",
        "hsl(180 1 x%)",
        "hsl(360,0%,0)", // mix format
        "hsla(360)",
        "hwb(Xrad,50%,50%)",
        "hwb(270 0% 0% 0% 0%)",
        "hwb(360,0,20%)", // mix format
        "hsv(120 100% 100% 1 50%)",
        "hsv(120 XXX 100%)",
        "hsv(120,100%,0.5)", //mix format
        "lab(100%,0)",
        "lab(100% 0 X)",
        "lch(100%,0)",
        "lch(100% 0 X)",
        "oklab(0,0)",
        "oklab(0,0,x,0)",
        "oklch(0,0,0,0,0)",
        "oklch(0,0,0,x)",
        "æ",
        "#ß",
        "rgb(ß,0,0)",
        "\u{1F602}",
        "#\u{1F602}",
        "rgb(\u{1F602},\u{1F602},\u{1F602})",
    ];

    for s in test_data {
        let c = parse(s);
        assert!(c.is_err(), "{:?}", s);
    }

    #[rustfmt::skip]
    let test_data = [
        ("#78afzd",          "invalid hex format"),
        ("rgb(xx,yy,xx)",    "invalid rgb format"),
        ("rgb(255,0)",       "invalid color function"),
        ("hsl(0,100%,2o%)",  "invalid hsl format"),
        ("hsv(360)",         "invalid color function"),
        ("hwb(270,0%,0%,x)", "invalid color function"),
        ("lab(0%)",          "invalid color function"),
        ("lch(0%)",          "invalid color function"),
        ("cmyk(0,0,0,0)",    "invalid color function"),
        ("blood",            "invalid unknown format"),
        ("rgb(255,0,0",      "invalid unknown format"),
        ("x£",               "invalid unknown format"),
        ("x£x",              "invalid unknown format"),
        ("xxx£x",            "invalid unknown format"),
        ("xxxxx£x",          "invalid unknown format"),
        ("\u{1F602}",        "invalid unknown format"),
    ];

    for (s, err_msg) in test_data {
        let c = parse(s);
        assert_eq!(c.unwrap_err().to_string(), err_msg, "{:?}", s);
    }
}