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test.js
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test.js
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import { test } from 'uvu'
import * as assert from 'uvu/assert'
import { convert, sort, sortFn } from './color-sorter.js'
test('it exposes a basic sort function', () => {
assert.is(typeof sort, 'function')
})
test('it exposes a convert function', () => {
assert.is(typeof convert, 'function')
})
test('it exposes a sortFn', () => {
assert.is(typeof sortFn, 'function')
})
test('the convert fn converts colors to an HSLA object', () => {
const colors = [
'red',
'hsla(0, 100%, 50%, 1)',
'hsl(0, 100%, 50%)',
'rgb(255, 0, 0)',
'rgba(255, 0, 0, 1)'
].map(color => convert(color))
colors.forEach(color => {
assert.equal(color, {
hue: 0,
saturation: 100,
lightness: 50,
alpha: 1,
authored: color.authored
})
})
})
test('Colors are sorted by Hue', () => {
const colors = [
'hsl(0, 100%, 50%)',
'hsl(200, 100%, 50%)',
'hsl(50, 100%, 50%)',
'hsl(10, 100%, 50%)',
'hsl(100, 100%, 50%)'
]
const expected = [
'hsl(0, 100%, 50%)',
'hsl(10, 100%, 50%)',
'hsl(50, 100%, 50%)',
'hsl(100, 100%, 50%)',
'hsl(200, 100%, 50%)'
]
const actual = sort(colors)
assert.equal(actual, expected)
})
test('Colors are sorted by Hue, then by saturation', () => {
const colors = [
'hsl(0, 100%, 50%)',
'hsl(0, 50%, 50%)',
'hsl(50, 20%, 50%)',
'hsl(50, 100%, 50%)'
]
const expected = [
'hsl(0, 50%, 50%)',
'hsl(0, 100%, 50%)',
'hsl(50, 20%, 50%)',
'hsl(50, 100%, 50%)'
]
const actual = sort(colors)
assert.equal(actual, expected)
})
test('Grey-ish values are shifted to the end (lightest first)', () => {
const colors = [
'hsl(0, 0, 0)', // Black
'hsl(0, 100%, 50%)', // Red,
'hsl(0, 0, 100%)', // White
'hsl(240, 100%, 50%)' // Blue
]
const expected = [
'hsl(0, 100%, 50%)', // Red
'hsl(240, 100%, 50%)', // Blue
'hsl(0, 0, 0)', // Black
'hsl(0, 0, 100%)' // White
]
const actual = sort(colors)
assert.equal(actual, expected)
})
test('Grey-ish colors are sorted by Lightness', () => {
// The key here is that saturation (the middle value in HSL)
// equals 0
const colors = [
'#000',
'#fff',
'#eee',
'#555',
'#222'
]
const expected = [
'#fff',
'#eee',
'#555',
'#222',
'#000'
]
const actual = sort(colors)
assert.equal(actual, expected)
})
test('Grey-ish colors are sorted by Lightness, then by Alpha', () => {
const colors = [
'hsla(0, 0, 20%, 1)',
'hsla(0, 0, 10%, 1)',
'hsla(0, 0, 10%, 0)',
'hsla(0, 0, 0, 0)'
]
const expected = [
'hsla(0, 0, 0, 0)',
'hsla(0, 0, 10%, 0)',
'hsla(0, 0, 10%, 1)',
'hsla(0, 0, 20%, 1)'
]
const actual = sort(colors)
assert.equal(actual, expected)
})
test('Fully transparent colors are sorted along their opaque companions', () => {
const colors = ['rgba(255, 0, 0, 0)', 'hsla(0, 100%, 50%, 0.1)', 'red']
const actual = sort(colors)
const expected = ['red', 'hsla(0, 100%, 50%, 0.1)', 'rgba(255, 0, 0, 0)']
assert.equal(actual, expected)
})
test('smoke test', () => {
const colors = [
'#4b4747',
'#d70c0b',
'#f00',
'#f22b24',
'#ff6930',
'#eb6c1e',
'#eb6d1e',
'#f57917',
'#ff8a0a',
'#f7a336',
'#feb95a',
'#eca920',
'#f1c15d',
'#f1c260',
'#ff0',
'#c8d05b',
'#ccd557',
'#d2ff52',
'#10ac47',
'#04a03b',
'#03fff3',
'#25bbc3',
'#38d7df',
'#15b8ec',
'#00adea',
'#8e34c9',
'#9a3dd1',
'#cd66f6',
'#fff',
'rgba(255,255,255,0.2)',
'rgba(255,255,255,0.07)',
'#f9f9f9',
'#f4f4f4',
'#f2f2f2',
'#e4e4e4',
'#ddd',
'#c0c0c0',
'#666',
'#4a4a4a',
'#1d1d1d',
'#0d0d0d',
'#000',
'rgba(0,0,0,0.8)',
'rgba(0,0,0,0.6)',
'rgba(0,0,0,0.4)',
'rgba(0,0,0,0.1)',
'rgba(0,0,0,0.05)'
]
const expected = [...colors]
const actual = sort(colors)
assert.equal(actual, expected)
})
test.run()