chroma-js
Version:
JavaScript library for color conversions
50 lines (44 loc) • 2.19 kB
JavaScript
require('es6-shim');
const vows = require('vows');
const assert = require('assert');
const chroma = require('../index');
vows
.describe('Some tests for chroma.lch()')
.addBatch({
'lch grayscale': {
topic: (((() => {
const result = [];
for (let l of [0,100,25,50,75]) {
result.push([l,0,0]);
}
return result;
})())),
'black'(t) { return assert.equal(chroma.lch(t[0]).hex(), '#000000'); },
'white'(t) { return assert.equal(chroma.lch(t[1]).hex(), '#ffffff'); },
'gray 1'(t) { return assert.equal(chroma.lch(t[2]).hex(), '#3b3b3b'); },
'gray 2'(t) { return assert.equal(chroma.lch(t[3]).hex(), '#777777'); },
'gray 3'(t) { return assert.equal(chroma.lch(t[4]).hex(), '#b9b9b9'); }
},
'lch hues': {
topic: (([0,60,120,180,240,300].map((h) => [50,70,h]))),
'red-ish'(t) { return assert.equal(chroma.lch(t[0]).hex(), '#dc2c7a'); },
'yellow-ish'(t) { return assert.equal(chroma.lch(t[1]).hex(), '#bd5c00'); },
'green-ish'(t) { return assert.equal(chroma.lch(t[2]).hex(), '#548400'); },
'teal-ish'(t) { return assert.equal(chroma.lch(t[3]).hex(), '#009175'); },
'blue-ish'(t) { return assert.equal(chroma.lch(t[4]).hex(), '#008cde'); },
'purple-ish'(t) { return assert.equal(chroma.lch(t[5]).hex(), '#6f67df'); }
},
'clipping': {
topic: (((() => {
const result1 = [];
for (l of [20,40,60,80,100]) {
result1.push(chroma.hcl(50, 40, l));
}
return result1;
})())),
'20-clipped'(t) { return assert.equal(t[0].clipped(), true); },
'40-not clipped'(t) { return assert.equal(t[1].clipped(), false); },
'60-not clipped'(t) { return assert.equal(t[2].clipped(), false); },
'80-clipped'(t) { return assert.equal(t[3].clipped(), true); },
'100-clipped'(t) { return assert.equal(t[4].clipped(), true); }
}}).export(module);