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Diffstat (limited to 'packages/taler-wallet-webextension/src/mui/colors/manipulation.test.ts')
-rw-r--r-- | packages/taler-wallet-webextension/src/mui/colors/manipulation.test.ts | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/packages/taler-wallet-webextension/src/mui/colors/manipulation.test.ts b/packages/taler-wallet-webextension/src/mui/colors/manipulation.test.ts new file mode 100644 index 000000000..77b3ec884 --- /dev/null +++ b/packages/taler-wallet-webextension/src/mui/colors/manipulation.test.ts @@ -0,0 +1,305 @@ +import { expect } from 'chai'; +import { + recomposeColor, + hexToRgb, + rgbToHex, + hslToRgb, + darken, + decomposeColor, + emphasize, + alpha, + getContrastRatio, + getLuminance, + lighten, +} from './manipulation'; + +describe('utils/colorManipulator', () => { + describe('recomposeColor', () => { + it('converts a decomposed rgb color object to a string` ', () => { + expect( + recomposeColor({ + type: 'rgb', + values: [255, 255, 255], + }), + ).to.equal('rgb(255, 255, 255)'); + }); + + it('converts a decomposed rgba color object to a string` ', () => { + expect( + recomposeColor({ + type: 'rgba', + values: [255, 255, 255, 0.5], + }), + ).to.equal('rgba(255, 255, 255, 0.5)'); + }); + + it('converts a decomposed hsl color object to a string` ', () => { + expect( + recomposeColor({ + type: 'hsl', + values: [100, 50, 25], + }), + ).to.equal('hsl(100, 50%, 25%)'); + }); + + it('converts a decomposed hsla color object to a string` ', () => { + expect( + recomposeColor({ + type: 'hsla', + values: [100, 50, 25, 0.5], + }), + ).to.equal('hsla(100, 50%, 25%, 0.5)'); + }); + }); + + describe('hexToRgb', () => { + it('converts a short hex color to an rgb color` ', () => { + expect(hexToRgb('#9f3')).to.equal('rgb(153, 255, 51)'); + }); + + it('converts a long hex color to an rgb color` ', () => { + expect(hexToRgb('#a94fd3')).to.equal('rgb(169, 79, 211)'); + }); + + it('converts a long alpha hex color to an argb color` ', () => { + expect(hexToRgb('#111111f8')).to.equal('rgba(17, 17, 17, 0.973)'); + }); + }); + + describe('rgbToHex', () => { + it('converts an rgb color to a hex color` ', () => { + expect(rgbToHex('rgb(169, 79, 211)')).to.equal('#a94fd3'); + }); + + it('converts an rgba color to a hex color` ', () => { + expect(rgbToHex('rgba(169, 79, 211, 1)')).to.equal('#a94fd3ff'); + }); + + it('idempotent', () => { + expect(rgbToHex('#A94FD3')).to.equal('#A94FD3'); + }); + }); + + describe('hslToRgb', () => { + it('converts an hsl color to an rgb color` ', () => { + expect(hslToRgb('hsl(281, 60%, 57%)')).to.equal('rgb(169, 80, 211)'); + }); + + it('converts an hsla color to an rgba color` ', () => { + expect(hslToRgb('hsla(281, 60%, 57%, 0.5)')).to.equal('rgba(169, 80, 211, 0.5)'); + }); + + it('allow to convert values only', () => { + expect(hslToRgb('hsl(281, 60%, 57%)')).to.equal('rgb(169, 80, 211)'); + }); + }); + + describe('decomposeColor', () => { + it('converts an rgb color string to an object with `type` and `value` keys', () => { + const { type, values } = decomposeColor('rgb(255, 255, 255)'); + expect(type).to.equal('rgb'); + expect(values).to.deep.equal([255, 255, 255]); + }); + + it('converts an rgba color string to an object with `type` and `value` keys', () => { + const { type, values } = decomposeColor('rgba(255, 255, 255, 0.5)'); + expect(type).to.equal('rgba'); + expect(values).to.deep.equal([255, 255, 255, 0.5]); + }); + + it('converts an hsl color string to an object with `type` and `value` keys', () => { + const { type, values } = decomposeColor('hsl(100, 50%, 25%)'); + expect(type).to.equal('hsl'); + expect(values).to.deep.equal([100, 50, 25]); + }); + + it('converts an hsla color string to an object with `type` and `value` keys', () => { + const { type, values } = decomposeColor('hsla(100, 50%, 25%, 0.5)'); + expect(type).to.equal('hsla'); + expect(values).to.deep.equal([100, 50, 25, 0.5]); + }); + + it('converts rgba hex', () => { + const decomposed = decomposeColor('#111111f8'); + expect(decomposed).to.deep.equal({ + type: 'rgba', + colorSpace: undefined, + values: [17, 17, 17, 0.973], + }); + }); + }); + + describe('getContrastRatio', () => { + it('returns a ratio for black : white', () => { + expect(getContrastRatio('#000', '#FFF')).to.equal(21); + }); + + it('returns a ratio for black : black', () => { + expect(getContrastRatio('#000', '#000')).to.equal(1); + }); + + it('returns a ratio for white : white', () => { + expect(getContrastRatio('#FFF', '#FFF')).to.equal(1); + }); + + it('returns a ratio for dark-grey : light-grey', () => { + expect(getContrastRatio('#707070', '#E5E5E5')).to.be.approximately(3.93, 0.01); + }); + + it('returns a ratio for black : light-grey', () => { + expect(getContrastRatio('#000', '#888')).to.be.approximately(5.92, 0.01); + }); + }); + + describe('getLuminance', () => { + + it('returns a valid luminance for rgb white ', () => { + expect(getLuminance('rgba(255, 255, 255)')).to.equal(1); + expect(getLuminance('rgb(255, 255, 255)')).to.equal(1); + }); + + it('returns a valid luminance for rgb mid-grey', () => { + expect(getLuminance('rgba(127, 127, 127)')).to.equal(0.212); + expect(getLuminance('rgb(127, 127, 127)')).to.equal(0.212); + }); + + it('returns a valid luminance for an rgb color', () => { + expect(getLuminance('rgb(255, 127, 0)')).to.equal(0.364); + }); + + it('returns a valid luminance from an hsl color', () => { + expect(getLuminance('hsl(100, 100%, 50%)')).to.equal(0.735); + }); + + it('returns an equal luminance for the same color in different formats', () => { + const hsl = 'hsl(100, 100%, 50%)'; + const rgb = 'rgb(85, 255, 0)'; + expect(getLuminance(hsl)).to.equal(getLuminance(rgb)); + }); + + }); + + describe('emphasize', () => { + it('lightens a dark rgb color with the coefficient provided', () => { + expect(emphasize('rgb(1, 2, 3)', 0.4)).to.equal(lighten('rgb(1, 2, 3)', 0.4)); + }); + + it('darkens a light rgb color with the coefficient provided', () => { + expect(emphasize('rgb(250, 240, 230)', 0.3)).to.equal(darken('rgb(250, 240, 230)', 0.3)); + }); + + it('lightens a dark rgb color with the coefficient 0.15 by default', () => { + expect(emphasize('rgb(1, 2, 3)')).to.equal(lighten('rgb(1, 2, 3)', 0.15)); + }); + + it('darkens a light rgb color with the coefficient 0.15 by default', () => { + expect(emphasize('rgb(250, 240, 230)')).to.equal(darken('rgb(250, 240, 230)', 0.15)); + }); + + }); + + describe('alpha', () => { + it('converts an rgb color to an rgba color with the value provided', () => { + expect(alpha('rgb(1, 2, 3)', 0.4)).to.equal('rgba(1, 2, 3, 0.4)'); + }); + + it('updates an rgba color with the alpha value provided', () => { + expect(alpha('rgba(255, 0, 0, 0.2)', 0.5)).to.equal('rgba(255, 0, 0, 0.5)'); + }); + + it('converts an hsl color to an hsla color with the value provided', () => { + expect(alpha('hsl(0, 100%, 50%)', 0.1)).to.equal('hsla(0, 100%, 50%, 0.1)'); + }); + + it('updates an hsla color with the alpha value provided', () => { + expect(alpha('hsla(0, 100%, 50%, 0.2)', 0.5)).to.equal('hsla(0, 100%, 50%, 0.5)'); + }); + + }); + + describe('darken', () => { + it("doesn't modify rgb black", () => { + expect(darken('rgb(0, 0, 0)', 0.1)).to.equal('rgb(0, 0, 0)'); + }); + + it('darkens rgb white to black when coefficient is 1', () => { + expect(darken('rgb(255, 255, 255)', 1)).to.equal('rgb(0, 0, 0)'); + }); + + it('retains the alpha value in an rgba color', () => { + expect(darken('rgba(0, 0, 0, 0.5)', 0.1)).to.equal('rgba(0, 0, 0, 0.5)'); + }); + + it('darkens rgb white by 10% when coefficient is 0.1', () => { + expect(darken('rgb(255, 255, 255)', 0.1)).to.equal('rgb(229, 229, 229)'); + }); + + it('darkens rgb red by 50% when coefficient is 0.5', () => { + expect(darken('rgb(255, 0, 0)', 0.5)).to.equal('rgb(127, 0, 0)'); + }); + + it('darkens rgb grey by 50% when coefficient is 0.5', () => { + expect(darken('rgb(127, 127, 127)', 0.5)).to.equal('rgb(63, 63, 63)'); + }); + + it("doesn't modify rgb colors when coefficient is 0", () => { + expect(darken('rgb(255, 255, 255)', 0)).to.equal('rgb(255, 255, 255)'); + }); + + it('darkens hsl red by 50% when coefficient is 0.5', () => { + expect(darken('hsl(0, 100%, 50%)', 0.5)).to.equal('hsl(0, 100%, 25%)'); + }); + + it("doesn't modify hsl colors when coefficient is 0", () => { + expect(darken('hsl(0, 100%, 50%)', 0)).to.equal('hsl(0, 100%, 50%)'); + }); + + it("doesn't modify hsl colors when l is 0%", () => { + expect(darken('hsl(0, 50%, 0%)', 0.5)).to.equal('hsl(0, 50%, 0%)'); + }); + + }); + + describe('lighten', () => { + it("doesn't modify rgb white", () => { + expect(lighten('rgb(255, 255, 255)', 0.1)).to.equal('rgb(255, 255, 255)'); + }); + + it('lightens rgb black to white when coefficient is 1', () => { + expect(lighten('rgb(0, 0, 0)', 1)).to.equal('rgb(255, 255, 255)'); + }); + + it('retains the alpha value in an rgba color', () => { + expect(lighten('rgba(255, 255, 255, 0.5)', 0.1)).to.equal('rgba(255, 255, 255, 0.5)'); + }); + + it('lightens rgb black by 10% when coefficient is 0.1', () => { + expect(lighten('rgb(0, 0, 0)', 0.1)).to.equal('rgb(25, 25, 25)'); + }); + + it('lightens rgb red by 50% when coefficient is 0.5', () => { + expect(lighten('rgb(255, 0, 0)', 0.5)).to.equal('rgb(255, 127, 127)'); + }); + + it('lightens rgb grey by 50% when coefficient is 0.5', () => { + expect(lighten('rgb(127, 127, 127)', 0.5)).to.equal('rgb(191, 191, 191)'); + }); + + it("doesn't modify rgb colors when coefficient is 0", () => { + expect(lighten('rgb(127, 127, 127)', 0)).to.equal('rgb(127, 127, 127)'); + }); + + it('lightens hsl red by 50% when coefficient is 0.5', () => { + expect(lighten('hsl(0, 100%, 50%)', 0.5)).to.equal('hsl(0, 100%, 75%)'); + }); + + it("doesn't modify hsl colors when coefficient is 0", () => { + expect(lighten('hsl(0, 100%, 50%)', 0)).to.equal('hsl(0, 100%, 50%)'); + }); + + it("doesn't modify hsl colors when `l` is 100%", () => { + expect(lighten('hsl(0, 50%, 100%)', 0.5)).to.equal('hsl(0, 50%, 100%)'); + }); + + }); +}); |