mirror of
https://github.com/nunocoracao/blowfish.git
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90 lines
3.1 KiB
JavaScript
90 lines
3.1 KiB
JavaScript
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/* IMPORT */
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import {describe} from 'fava';
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import {adjust} from '../../dist/index.js';
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import Color from '../../dist/color/index.js';
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/* MAIN */
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describe ( 'adjust', it => {
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it ( 'increases or decreases the value of any RGB channel of the color', t => {
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const tests = [
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[['rgb(0, 0, 0)', { r: 100 }], 'rgb(100, 0, 0)'],
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[['rgb(0, 0, 0)', { g: 100 }], 'rgb(0, 100, 0)'],
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[['rgb(0, 0, 0)', { b: 100 }], 'rgb(0, 0, 100)'],
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[['rgb(0, 0, 0)', { r: 100, g: 100 }], 'rgb(100, 100, 0)'],
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[['rgb(0, 0, 0)', { r: 100, g: 100, b: 100 }], 'rgb(100, 100, 100)'],
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[['rgb(255, 255, 255)', { r: -100 }], 'rgb(155, 255, 255)'],
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[['rgb(255, 255, 255)', { g: -100 }], 'rgb(255, 155, 255)'],
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[['rgb(255, 255, 255)', { b: -100 }], 'rgb(255, 255, 155)'],
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[['rgb(200, 0, 0)', { r: 100 }], 'rgb(255, 0, 0)'],
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[['rgb(100, 0, 0)', { r: -200 }], 'rgb(0, 0, 0)']
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];
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tests.forEach ( ([ args, output ]) => {
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t.is ( Color.format.rgb.stringify ( Color.parse ( adjust ( ...args ) ) ), output );
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});
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});
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it ( 'increases or decreases the value of any HSL channel of the color', t => {
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const tests = [
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[['hsl(0, 50%, 50%)', { h: 100 }], 'hsl(100, 50%, 50%)'],
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[['hsl(0, 50%, 50%)', { s: 25 }], 'hsl(0, 75%, 50%)'],
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[['hsl(0, 50%, 50%)', { l: 25 }], 'hsl(0, 50%, 75%)'],
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[['hsl(0, 50%, 50%)', { h: 100, s: 25 }], 'hsl(100, 75%, 50%)'],
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[['hsl(0, 50%, 50%)', { h: 100, s: 25, l: 25 }], 'hsl(100, 75%, 75%)'],
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[['hsl(100, 50%, 50%)', { h: -100 }], 'hsl(0, 50%, 50%)'],
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[['hsl(0, 50%, 50%)', { s: -25 }], 'hsl(0, 25%, 50%)'],
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[['hsl(0, 50%, 50%)', { l: -25 }], 'hsl(0, 50%, 25%)'],
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[['hsl(300, 50%, 50%)', { h: 100 }], 'hsl(40, 50%, 50%)'],
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[['hsl(0, 50%, 50%)', { h: -100 }], 'hsl(-100, 50%, 50%)'],
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[['hsl(0, 100%, 50%)', { s: 25 }], 'hsl(0, 100%, 50%)'],
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[['hsl(0, 0%, 50%)', { s: -25 }], 'hsl(0, 0%, 50%)'],
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[['hsla(0, 0%, 50%, .5)', { s: -25 }], 'hsla(0, 0%, 50%, 0.5)']
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];
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tests.forEach ( ([ args, output ]) => {
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t.is ( Color.format.hsl.stringify ( Color.parse ( adjust ( ...args ) ) ), output );
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});
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});
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it ( 'increases or decreases the value of the alpha channel of the color', t => {
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const tests = [
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[['rgba(0, 0, 0, 0)', { a: 0.5 }], 'rgba(0, 0, 0, 0.5)'],
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[['hsla(0, 0%, 0%, 0)', { a: 0.5 }], 'hsla(0, 0%, 0%, 0.5)'],
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[['rgba(0, 0, 0, 0)', { a: 1 }], '#000000'],
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[['rgba(0, 0, 0, 1)', { a: -0.5 }], 'rgba(0, 0, 0, 0.5)'],
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[['rgba(0, 0, 0, 1)', { a: -1 }], 'rgba(0, 0, 0, 0)'],
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[['rgba(0, 0, 0, 0.5)', { a: 1 }], '#000000'],
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[['rgba(0, 0, 0, 0.5)', { a: -1 }], 'rgba(0, 0, 0, 0)']
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];
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tests.forEach ( ([ args, output ]) => {
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t.is ( adjust ( ...args ), output );
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});
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});
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it ( 'throws when setting RGB and HSL channels at the same time', t => {
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const tests = [
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['#000', { r: 10, h: 10 }],
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['#000', { g: 10, l: 10 }],
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['#000', { b: 10, s: 10 }]
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];
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tests.forEach ( args => {
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t.throws ( () => adjust ( ...args ), /cannot.*at the same time/i );
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});
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});
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});
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