maplibre-gl/src/style-spec/util/color_spaces.test.ts

BSD licensed community fork of mapbox-gl, a WebGL interactive maps library

import * as colorSpaces from './color_spaces';
import Color from './color';

describe('color spaces', () => {
    test('#hclToRgb zero', () => {
        const hclColor = {h: 0, c: 0, l: 0, alpha: null};
        const rgbColor = new Color(0, 0, 0, null);
        expect(colorSpaces.hcl.reverse(hclColor)).toEqual(rgbColor);
    });

    test('#hclToRgb', () => {
        const hclColor = {h: 20, c: 20, l: 20, alpha: null};
        const rgbColor = new Color(76.04087881379073, 36.681898967046166, 39.08743507357837, null);
        expect(colorSpaces.hcl.reverse(hclColor)).toEqual(rgbColor);
    });

    test('#rgbToHcl zero', () => {
        const hclColor = {h: 0, c: 0, l: 0, alpha: null};
        const rgbColor = new Color(0, 0, 0, null);
        expect(colorSpaces.hcl.forward(rgbColor)).toEqual(hclColor);
    });

    test('#rgbToHcl', () => {
        const hclColor = {h: 158.19859051364818, c: 0.0000029334887311101764, l: 6.318928745123017, alpha: null};
        const rgbColor = new Color(20, 20, 20, null);
        expect(colorSpaces.hcl.forward(rgbColor)).toEqual(hclColor);
    });
});