test.js

'use strict';

var assert = require('assert');
var Colr = require('./index');

describe('Colr', function () {

  var colr;

  var tests = {

    fromHex: {
      convert: {

        toHex: [
          ['#bada55', '#bada55'],
          ['abc',     '#aabbcc'],
          ['#010203', '#010203'],
          ['000',     '#000000'],
          ['fff',     '#ffffff'],
        ],

        toRgb: [
          ['#000000',[0,0,0]],
          ['#00003f',[0,0,63]],
          ['#00007f',[0,0,127]],
          ['#0000bf',[0,0,191]],
          ['#0000ff',[0,0,255]],
          ['#003f00',[0,63,0]],
          ['#003f3f',[0,63,63]],
          ['#003f7f',[0,63,127]],
          ['#003fbf',[0,63,191]],
          ['#003fff',[0,63,255]],
          ['#007f00',[0,127,0]],
          ['#007f3f',[0,127,63]],
          ['#007f7f',[0,127,127]],
          ['#007fbf',[0,127,191]],
          ['#007fff',[0,127,255]],
          ['#00bf00',[0,191,0]],
          ['#00bf3f',[0,191,63]],
          ['#00bf7f',[0,191,127]],
          ['#00bfbf',[0,191,191]],
          ['#00bfff',[0,191,255]],
          ['#00ff00',[0,255,0]],
          ['#00ff3f',[0,255,63]],
          ['#00ff7f',[0,255,127]],
          ['#00ffbf',[0,255,191]],
          ['#00ffff',[0,255,255]],
          ['#3f0000',[63,0,0]],
          ['#3f003f',[63,0,63]],
          ['#3f007f',[63,0,127]],
          ['#3f00bf',[63,0,191]],
          ['#3f00ff',[63,0,255]],
          ['#3f3f00',[63,63,0]],
          ['#3f3f3f',[63,63,63]],
          ['#3f3f7f',[63,63,127]],
          ['#3f3fbf',[63,63,191]],
          ['#3f3fff',[63,63,255]],
          ['#3f7f00',[63,127,0]],
          ['#3f7f3f',[63,127,63]],
          ['#3f7f7f',[63,127,127]],
          ['#3f7fbf',[63,127,191]],
          ['#3f7fff',[63,127,255]],
          ['#3fbf00',[63,191,0]],
          ['#3fbf3f',[63,191,63]],
          ['#3fbf7f',[63,191,127]],
          ['#3fbfbf',[63,191,191]],
          ['#3fbfff',[63,191,255]],
          ['#3fff00',[63,255,0]],
          ['#3fff3f',[63,255,63]],
          ['#3fff7f',[63,255,127]],
          ['#3fffbf',[63,255,191]],
          ['#3fffff',[63,255,255]],
          ['#7f0000',[127,0,0]],
          ['#7f003f',[127,0,63]],
          ['#7f007f',[127,0,127]],
          ['#7f00bf',[127,0,191]],
          ['#7f00ff',[127,0,255]],
          ['#7f3f00',[127,63,0]],
          ['#7f3f3f',[127,63,63]],
          ['#7f3f7f',[127,63,127]],
          ['#7f3fbf',[127,63,191]],
          ['#7f3fff',[127,63,255]],
          ['#7f7f00',[127,127,0]],
          ['#7f7f3f',[127,127,63]],
          ['#7f7f7f',[127,127,127]],
          ['#7f7fbf',[127,127,191]],
          ['#7f7fff',[127,127,255]],
          ['#7fbf00',[127,191,0]],
          ['#7fbf3f',[127,191,63]],
          ['#7fbf7f',[127,191,127]],
          ['#7fbfbf',[127,191,191]],
          ['#7fbfff',[127,191,255]],
          ['#7fff00',[127,255,0]],
          ['#7fff3f',[127,255,63]],
          ['#7fff7f',[127,255,127]],
          ['#7fffbf',[127,255,191]],
          ['#7fffff',[127,255,255]],
          ['#bf0000',[191,0,0]],
          ['#bf003f',[191,0,63]],
          ['#bf007f',[191,0,127]],
          ['#bf00bf',[191,0,191]],
          ['#bf00ff',[191,0,255]],
          ['#bf3f00',[191,63,0]],
          ['#bf3f3f',[191,63,63]],
          ['#bf3f7f',[191,63,127]],
          ['#bf3fbf',[191,63,191]],
          ['#bf3fff',[191,63,255]],
          ['#bf7f00',[191,127,0]],
          ['#bf7f3f',[191,127,63]],
          ['#bf7f7f',[191,127,127]],
          ['#bf7fbf',[191,127,191]],
          ['#bf7fff',[191,127,255]],
          ['#bfbf00',[191,191,0]],
          ['#bfbf3f',[191,191,63]],
          ['#bfbf7f',[191,191,127]],
          ['#bfbfbf',[191,191,191]],
          ['#bfbfff',[191,191,255]],
          ['#bfff00',[191,255,0]],
          ['#bfff3f',[191,255,63]],
          ['#bfff7f',[191,255,127]],
          ['#bfffbf',[191,255,191]],
          ['#bfffff',[191,255,255]],
          ['#ff0000',[255,0,0]],
          ['#ff003f',[255,0,63]],
          ['#ff007f',[255,0,127]],
          ['#ff00bf',[255,0,191]],
          ['#ff00ff',[255,0,255]],
          ['#ff3f00',[255,63,0]],
          ['#ff3f3f',[255,63,63]],
          ['#ff3f7f',[255,63,127]],
          ['#ff3fbf',[255,63,191]],
          ['#ff3fff',[255,63,255]],
          ['#ff7f00',[255,127,0]],
          ['#ff7f3f',[255,127,63]],
          ['#ff7f7f',[255,127,127]],
          ['#ff7fbf',[255,127,191]],
          ['#ff7fff',[255,127,255]],
          ['#ffbf00',[255,191,0]],
          ['#ffbf3f',[255,191,63]],
          ['#ffbf7f',[255,191,127]],
          ['#ffbfbf',[255,191,191]],
          ['#ffbfff',[255,191,255]],
          ['#ffff00',[255,255,0]],
          ['#ffff3f',[255,255,63]],
          ['#ffff7f',[255,255,127]],
          ['#ffffbf',[255,255,191]],
          ['#ffffff',[255,255,255]],
        ],

      },

      alter: {
        lighten: [
          [50, '#000000', '#808080'],
          [50, '#aabbcc', '#ffffff'],
          [50, '#332211', '#d0a273'],
        ],
        darken: [
          [50, '#FFFFFF', '#808080'],
          [50, '#aabbcc', '#2d3c4a'],
          [50, '#332211', '#000000'],
        ]
      },

      fail: [
        '#01', '01', 'ab', 'abcdex'
      ]
    },

    fromGrayscale: {
      convert: {

        toRgb: [
          [0,[0,0,0]],
          [3,[3,3,3]],
          [6,[6,6,6]],
          [9,[9,9,9]],
          [12,[12,12,12]],
          [15,[15,15,15]],
          [18,[18,18,18]],
          [21,[21,21,21]],
          [24,[24,24,24]],
          [27,[27,27,27]],
          [30,[30,30,30]],
          [33,[33,33,33]],
          [36,[36,36,36]],
          [39,[39,39,39]],
          [42,[42,42,42]],
          [45,[45,45,45]],
          [48,[48,48,48]],
          [51,[51,51,51]],
          [54,[54,54,54]],
          [57,[57,57,57]],
          [60,[60,60,60]],
          [63,[63,63,63]],
          [66,[66,66,66]],
          [69,[69,69,69]],
          [72,[72,72,72]],
          [75,[75,75,75]],
          [78,[78,78,78]],
          [81,[81,81,81]],
          [84,[84,84,84]],
          [87,[87,87,87]],
          [90,[90,90,90]],
          [93,[93,93,93]],
          [96,[96,96,96]],
          [99,[99,99,99]],
          [102,[102,102,102]],
          [105,[105,105,105]],
          [108,[108,108,108]],
          [111,[111,111,111]],
          [114,[114,114,114]],
          [117,[117,117,117]],
          [120,[120,120,120]],
          [123,[123,123,123]],
          [126,[126,126,126]],
          [129,[129,129,129]],
          [132,[132,132,132]],
          [135,[135,135,135]],
          [138,[138,138,138]],
          [141,[141,141,141]],
          [144,[144,144,144]],
          [147,[147,147,147]],
          [150,[150,150,150]],
          [153,[153,153,153]],
          [156,[156,156,156]],
          [159,[159,159,159]],
          [162,[162,162,162]],
          [165,[165,165,165]],
          [168,[168,168,168]],
          [171,[171,171,171]],
          [174,[174,174,174]],
          [177,[177,177,177]],
          [180,[180,180,180]],
          [183,[183,183,183]],
          [186,[186,186,186]],
          [189,[189,189,189]],
          [192,[192,192,192]],
          [195,[195,195,195]],
          [198,[198,198,198]],
          [201,[201,201,201]],
          [204,[204,204,204]],
          [207,[207,207,207]],
          [210,[210,210,210]],
          [213,[213,213,213]],
          [216,[216,216,216]],
          [219,[219,219,219]],
          [222,[222,222,222]],
          [225,[225,225,225]],
          [228,[228,228,228]],
          [231,[231,231,231]],
          [234,[234,234,234]],
          [237,[237,237,237]],
          [240,[240,240,240]],
          [243,[243,243,243]],
          [246,[246,246,246]],
          [249,[249,249,249]],
          [252,[252,252,252]],
          [255,[255,255,255]]
        ],

      },

      fail: [
      ]
    },

    fromRgb: {

      convert: {

        toRgb: [
          [[10, 20, 30], [10, 20, 30]],
          [[0, 128, 255], [0, 128, 255]],
          [[-1, 128, 256], [0, 128, 255]],
          [[20, 30, 40], [20, 30, 40]],
          [[-1, 128, 256], [0, 128, 255]],
          [[-0.5, 128, 255.5], [0, 128, 255]],
        ],

        toHex: [
          [[0,0,0],'#000000'],
          [[0,0,63],'#00003f'],
          [[0,0,127],'#00007f'],
          [[0,0,191],'#0000bf'],
          [[0,0,255],'#0000ff'],
          [[0,63,0],'#003f00'],
          [[0,63,63],'#003f3f'],
          [[0,63,127],'#003f7f'],
          [[0,63,191],'#003fbf'],
          [[0,63,255],'#003fff'],
          [[0,127,0],'#007f00'],
          [[0,127,63],'#007f3f'],
          [[0,127,127],'#007f7f'],
          [[0,127,191],'#007fbf'],
          [[0,127,255],'#007fff'],
          [[0,191,0],'#00bf00'],
          [[0,191,63],'#00bf3f'],
          [[0,191,127],'#00bf7f'],
          [[0,191,191],'#00bfbf'],
          [[0,191,255],'#00bfff'],
          [[0,255,0],'#00ff00'],
          [[0,255,63],'#00ff3f'],
          [[0,255,127],'#00ff7f'],
          [[0,255,191],'#00ffbf'],
          [[0,255,255],'#00ffff'],
          [[63,0,0],'#3f0000'],
          [[63,0,63],'#3f003f'],
          [[63,0,127],'#3f007f'],
          [[63,0,191],'#3f00bf'],
          [[63,0,255],'#3f00ff'],
          [[63,63,0],'#3f3f00'],
          [[63,63,63],'#3f3f3f'],
          [[63,63,127],'#3f3f7f'],
          [[63,63,191],'#3f3fbf'],
          [[63,63,255],'#3f3fff'],
          [[63,127,0],'#3f7f00'],
          [[63,127,63],'#3f7f3f'],
          [[63,127,127],'#3f7f7f'],
          [[63,127,191],'#3f7fbf'],
          [[63,127,255],'#3f7fff'],
          [[63,191,0],'#3fbf00'],
          [[63,191,63],'#3fbf3f'],
          [[63,191,127],'#3fbf7f'],
          [[63,191,191],'#3fbfbf'],
          [[63,191,255],'#3fbfff'],
          [[63,255,0],'#3fff00'],
          [[63,255,63],'#3fff3f'],
          [[63,255,127],'#3fff7f'],
          [[63,255,191],'#3fffbf'],
          [[63,255,255],'#3fffff'],
          [[127,0,0],'#7f0000'],
          [[127,0,63],'#7f003f'],
          [[127,0,127],'#7f007f'],
          [[127,0,191],'#7f00bf'],
          [[127,0,255],'#7f00ff'],
          [[127,63,0],'#7f3f00'],
          [[127,63,63],'#7f3f3f'],
          [[127,63,127],'#7f3f7f'],
          [[127,63,191],'#7f3fbf'],
          [[127,63,255],'#7f3fff'],
          [[127,127,0],'#7f7f00'],
          [[127,127,63],'#7f7f3f'],
          [[127,127,127],'#7f7f7f'],
          [[127,127,191],'#7f7fbf'],
          [[127,127,255],'#7f7fff'],
          [[127,191,0],'#7fbf00'],
          [[127,191,63],'#7fbf3f'],
          [[127,191,127],'#7fbf7f'],
          [[127,191,191],'#7fbfbf'],
          [[127,191,255],'#7fbfff'],
          [[127,255,0],'#7fff00'],
          [[127,255,63],'#7fff3f'],
          [[127,255,127],'#7fff7f'],
          [[127,255,191],'#7fffbf'],
          [[127,255,255],'#7fffff'],
          [[191,0,0],'#bf0000'],
          [[191,0,63],'#bf003f'],
          [[191,0,127],'#bf007f'],
          [[191,0,191],'#bf00bf'],
          [[191,0,255],'#bf00ff'],
          [[191,63,0],'#bf3f00'],
          [[191,63,63],'#bf3f3f'],
          [[191,63,127],'#bf3f7f'],
          [[191,63,191],'#bf3fbf'],
          [[191,63,255],'#bf3fff'],
          [[191,127,0],'#bf7f00'],
          [[191,127,63],'#bf7f3f'],
          [[191,127,127],'#bf7f7f'],
          [[191,127,191],'#bf7fbf'],
          [[191,127,255],'#bf7fff'],
          [[191,191,0],'#bfbf00'],
          [[191,191,63],'#bfbf3f'],
          [[191,191,127],'#bfbf7f'],
          [[191,191,191],'#bfbfbf'],
          [[191,191,255],'#bfbfff'],
          [[191,255,0],'#bfff00'],
          [[191,255,63],'#bfff3f'],
          [[191,255,127],'#bfff7f'],
          [[191,255,191],'#bfffbf'],
          [[191,255,255],'#bfffff'],
          [[255,0,0],'#ff0000'],
          [[255,0,63],'#ff003f'],
          [[255,0,127],'#ff007f'],
          [[255,0,191],'#ff00bf'],
          [[255,0,255],'#ff00ff'],
          [[255,63,0],'#ff3f00'],
          [[255,63,63],'#ff3f3f'],
          [[255,63,127],'#ff3f7f'],
          [[255,63,191],'#ff3fbf'],
          [[255,63,255],'#ff3fff'],
          [[255,127,0],'#ff7f00'],
          [[255,127,63],'#ff7f3f'],
          [[255,127,127],'#ff7f7f'],
          [[255,127,191],'#ff7fbf'],
          [[255,127,255],'#ff7fff'],
          [[255,191,0],'#ffbf00'],
          [[255,191,63],'#ffbf3f'],
          [[255,191,127],'#ffbf7f'],
          [[255,191,191],'#ffbfbf'],
          [[255,191,255],'#ffbfff'],
          [[255,255,0],'#ffff00'],
          [[255,255,63],'#ffff3f'],
          [[255,255,127],'#ffff7f'],
          [[255,255,191],'#ffffbf'],
          [[255,255,255],'#ffffff'],
        ],

        toGrayscale: [
          [[0,0,0],0],
          [[0,0,63],7.18],
          [[0,0,127],14.47],
          [[0,0,191],21.77],
          [[0,0,255],29.07],
          [[0,63,0],36.98],
          [[0,63,63],44.16],
          [[0,63,127],51.45],
          [[0,63,191],58.75],
          [[0,63,255],66.05],
          [[0,127,0],74.54],
          [[0,127,63],81.73],
          [[0,127,127],89.02],
          [[0,127,191],96.32],
          [[0,127,255],103.61],
          [[0,191,0],112.11],
          [[0,191,63],119.29],
          [[0,191,127],126.59],
          [[0,191,191],133.89],
          [[0,191,255],141.18],
          [[0,255,0],149.68],
          [[0,255,63],156.86],
          [[0,255,127],164.16],
          [[0,255,191],171.45],
          [[0,255,255],178.75],
          [[63,0,0],18.83],
          [[63,0,63],26.01],
          [[63,0,127],33.31],
          [[63,0,191],40.61],
          [[63,0,255],47.9],
          [[63,63,0],55.81],
          [[63,63,63],63],
          [[63,63,127],70.29],
          [[63,63,191],77.59],
          [[63,63,255],84.88],
          [[63,127,0],93.38],
          [[63,127,63],100.56],
          [[63,127,127],107.86],
          [[63,127,191],115.16],
          [[63,127,255],122.45],
          [[63,191,0],130.95],
          [[63,191,63],138.13],
          [[63,191,127],145.43],
          [[63,191,191],152.72],
          [[63,191,255],160.02],
          [[63,255,0],168.52],
          [[63,255,63],175.7],
          [[63,255,127],183],
          [[63,255,191],190.29],
          [[63,255,255],197.59],
          [[127,0,0],37.97],
          [[127,0,63],45.15],
          [[127,0,127],52.45],
          [[127,0,191],59.74],
          [[127,0,255],67.04],
          [[127,63,0],74.95],
          [[127,63,63],82.13],
          [[127,63,127],89.43],
          [[127,63,191],96.72],
          [[127,63,255],104.02],
          [[127,127,0],112.52],
          [[127,127,63],119.7],
          [[127,127,127],127],
          [[127,127,191],134.29],
          [[127,127,255],141.59],
          [[127,191,0],150.09],
          [[127,191,63],157.27],
          [[127,191,127],164.56],
          [[127,191,191],171.86],
          [[127,191,255],179.16],
          [[127,255,0],187.65],
          [[127,255,63],194.84],
          [[127,255,127],202.13],
          [[127,255,191],209.43],
          [[127,255,255],216.72],
          [[191,0,0],57.1],
          [[191,0,63],64.29],
          [[191,0,127],71.58],
          [[191,0,191],78.88],
          [[191,0,255],86.17],
          [[191,63,0],94.09],
          [[191,63,63],101.27],
          [[191,63,127],108.56],
          [[191,63,191],115.86],
          [[191,63,255],123.16],
          [[191,127,0],131.65],
          [[191,127,63],138.84],
          [[191,127,127],146.13],
          [[191,127,191],153.43],
          [[191,127,255],160.72],
          [[191,191,0],169.22],
          [[191,191,63],176.4],
          [[191,191,127],183.7],
          [[191,191,191],191],
          [[191,191,255],198.29],
          [[191,255,0],206.79],
          [[191,255,63],213.97],
          [[191,255,127],221.27],
          [[191,255,191],228.56],
          [[191,255,255],235.86],
          [[255,0,0],76.24],
          [[255,0,63],83.42],
          [[255,0,127],90.72],
          [[255,0,191],98.01],
          [[255,0,255],105.31],
          [[255,63,0],113.22],
          [[255,63,63],120.4],
          [[255,63,127],127.7],
          [[255,63,191],135],
          [[255,63,255],142.29],
          [[255,127,0],150.79],
          [[255,127,63],157.97],
          [[255,127,127],165.27],
          [[255,127,191],172.56],
          [[255,127,255],179.86],
          [[255,191,0],188.36],
          [[255,191,63],195.54],
          [[255,191,127],202.84],
          [[255,191,191],210.13],
          [[255,191,255],217.43],
          [[255,255,0],225.93],
          [[255,255,63],233.11],
          [[255,255,127],240.4],
          [[255,255,191],247.7],
          [[255,255,255],255]
        ],

        toHsl: [
          [[0,0,0],[0,0,0]],
          [[0,0,63],[240,100,12.35]],
          [[0,0,127],[240,100,24.9]],
          [[0,0,191],[240,100,37.45]],
          [[0,0,255],[240,100,50]],
          [[0,63,0],[120,100,12.35]],
          [[0,63,63],[180,100,12.35]],
          [[0,63,127],[210.23,100,24.9]],
          [[0,63,191],[220.2,100,37.45]],
          [[0,63,255],[225.17,100,50]],
          [[0,127,0],[120,100,24.9]],
          [[0,127,63],[149.76,100,24.9]],
          [[0,127,127],[180,100,24.9]],
          [[0,127,191],[200.1,100,37.45]],
          [[0,127,255],[210.11,100,50]],
          [[0,191,0],[120,100,37.45]],
          [[0,191,63],[139.79,100,37.45]],
          [[0,191,127],[159.89,100,37.45]],
          [[0,191,191],[180,100,37.45]],
          [[0,191,255],[195.05,100,50]],
          [[0,255,0],[120,100,50]],
          [[0,255,63],[134.82,100,50]],
          [[0,255,127],[149.88,100,50]],
          [[0,255,191],[164.94,100,50]],
          [[0,255,255],[180,100,50]],
          [[63,0,0],[0,100,12.35]],
          [[63,0,63],[300,100,12.35]],
          [[63,0,127],[269.76,100,24.9]],
          [[63,0,191],[259.79,100,37.45]],
          [[63,0,255],[254.82,100,50]],
          [[63,63,0],[60,100,12.35]],
          [[63,63,63],[0,0,24.7]],
          [[63,63,127],[240,33.68,37.25]],
          [[63,63,191],[240,50.39,49.8]],
          [[63,63,255],[240,100,62.35]],
          [[63,127,0],[90.23,100,24.9]],
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          [[360,0,0],[360,0,0]],
          [[360,0,25],[360,0,25]],
          [[360,0,50],[360,0,50]],
          [[360,0,75],[360,0,75]],
          [[360,0,100],[360,0,100]],
          [[360,25,0],[360,0,0]],
          [[360,25,25],[360,40,31.25]],
          [[360,25,50],[360,40,62.5]],
          [[360,25,75],[360,15.38,81.25]],
          [[360,25,100],[360,0,100]],
          [[360,50,0],[360,0,0]],
          [[360,50,25],[360,66.66,37.5]],
          [[360,50,50],[360,66.66,75]],
          [[360,50,75],[360,28.57,87.5]],
          [[360,50,100],[360,0,100]],
          [[360,75,0],[360,0,0]],
          [[360,75,25],[360,85.71,43.75]],
          [[360,75,50],[360,85.71,87.5]],
          [[360,75,75],[360,40,93.75]],
          [[360,75,100],[360,0,100]],
          [[360,100,0],[360,0,0]],
          [[360,100,25],[360,100,50]],
          [[360,100,50],[360,100,100]],
          [[360,100,75],[360,50,100]],
          [[360,100,100],[360,0,100]]
        ],

      }
    },

    fromHsv: {

      convert: {

        toRgb: [
          [[0,0,0],[0,0,0]],
          [[0,0,25],[63.75,63.75,63.75]],
          [[0,0,50],[127.5,127.5,127.5]],
          [[0,0,75],[191.25,191.25,191.25]],
          [[0,0,100],[255,255,255]],
          [[0,25,0],[0,0,0]],
          [[0,25,25],[63.75,47.81,47.81]],
          [[0,25,50],[127.5,95.62,95.62]],
          [[0,25,75],[191.25,143.43,143.43]],
          [[0,25,100],[255,191.25,191.25]],
          [[0,50,0],[0,0,0]],
          [[0,50,25],[63.75,31.87,31.87]],
          [[0,50,50],[127.5,63.75,63.75]],
          [[0,50,75],[191.25,95.62,95.62]],
          [[0,50,100],[255,127.5,127.5]],
          [[0,75,0],[0,0,0]],
          [[0,75,25],[63.75,15.93,15.93]],
          [[0,75,50],[127.5,31.87,31.87]],
          [[0,75,75],[191.25,47.81,47.81]],
          [[0,75,100],[255,63.75,63.75]],
          [[0,100,0],[0,0,0]],
          [[0,100,25],[63.75,0,0]],
          [[0,100,50],[127.5,0,0]],
          [[0,100,75],[191.25,0,0]],
          [[0,100,100],[255,0,0]],
          [[90,0,0],[0,0,0]],
          [[90,0,25],[63.75,63.75,63.75]],
          [[90,0,50],[127.5,127.5,127.5]],
          [[90,0,75],[191.25,191.25,191.25]],
          [[90,0,100],[255,255,255]],
          [[90,25,0],[0,0,0]],
          [[90,25,25],[55.78,63.75,47.81]],
          [[90,25,50],[111.56,127.5,95.62]],
          [[90,25,75],[167.34,191.25,143.43]],
          [[90,25,100],[223.12,255,191.25]],
          [[90,50,0],[0,0,0]],
          [[90,50,25],[47.81,63.75,31.87]],
          [[90,50,50],[95.62,127.5,63.75]],
          [[90,50,75],[143.43,191.25,95.62]],
          [[90,50,100],[191.25,255,127.5]],
          [[90,75,0],[0,0,0]],
          [[90,75,25],[39.84,63.75,15.93]],
          [[90,75,50],[79.68,127.5,31.87]],
          [[90,75,75],[119.53,191.25,47.81]],
          [[90,75,100],[159.37,255,63.75]],
          [[90,100,0],[0,0,0]],
          [[90,100,25],[31.87,63.75,0]],
          [[90,100,50],[63.75,127.5,0]],
          [[90,100,75],[95.62,191.25,0]],
          [[90,100,100],[127.5,255,0]],
          [[180,0,0],[0,0,0]],
          [[180,0,25],[63.75,63.75,63.75]],
          [[180,0,50],[127.5,127.5,127.5]],
          [[180,0,75],[191.25,191.25,191.25]],
          [[180,0,100],[255,255,255]],
          [[180,25,0],[0,0,0]],
          [[180,25,25],[47.81,63.75,63.75]],
          [[180,25,50],[95.62,127.5,127.5]],
          [[180,25,75],[143.43,191.25,191.25]],
          [[180,25,100],[191.25,255,255]],
          [[180,50,0],[0,0,0]],
          [[180,50,25],[31.87,63.75,63.75]],
          [[180,50,50],[63.75,127.5,127.5]],
          [[180,50,75],[95.62,191.25,191.25]],
          [[180,50,100],[127.5,255,255]],
          [[180,75,0],[0,0,0]],
          [[180,75,25],[15.93,63.75,63.75]],
          [[180,75,50],[31.87,127.5,127.5]],
          [[180,75,75],[47.81,191.25,191.25]],
          [[180,75,100],[63.75,255,255]],
          [[180,100,0],[0,0,0]],
          [[180,100,25],[0,63.75,63.75]],
          [[180,100,50],[0,127.5,127.5]],
          [[180,100,75],[0,191.25,191.25]],
          [[180,100,100],[0,255,255]],
          [[270,0,0],[0,0,0]],
          [[270,0,25],[63.75,63.75,63.75]],
          [[270,0,50],[127.5,127.5,127.5]],
          [[270,0,75],[191.25,191.25,191.25]],
          [[270,0,100],[255,255,255]],
          [[270,25,0],[0,0,0]],
          [[270,25,25],[55.78,47.81,63.75]],
          [[270,25,50],[111.56,95.62,127.5]],
          [[270,25,75],[167.34,143.43,191.25]],
          [[270,25,100],[223.12,191.25,255]],
          [[270,50,0],[0,0,0]],
          [[270,50,25],[47.81,31.87,63.75]],
          [[270,50,50],[95.62,63.75,127.5]],
          [[270,50,75],[143.43,95.62,191.25]],
          [[270,50,100],[191.25,127.5,255]],
          [[270,75,0],[0,0,0]],
          [[270,75,25],[39.84,15.93,63.75]],
          [[270,75,50],[79.68,31.87,127.5]],
          [[270,75,75],[119.53,47.81,191.25]],
          [[270,75,100],[159.37,63.75,255]],
          [[270,100,0],[0,0,0]],
          [[270,100,25],[31.87,0,63.75]],
          [[270,100,50],[63.75,0,127.5]],
          [[270,100,75],[95.62,0,191.25]],
          [[270,100,100],[127.5,0,255]],
          [[360,0,0],[0,0,0]],
          [[360,0,25],[63.75,63.75,63.75]],
          [[360,0,50],[127.5,127.5,127.5]],
          [[360,0,75],[191.25,191.25,191.25]],
          [[360,0,100],[255,255,255]],
          [[360,25,0],[0,0,0]],
          [[360,25,25],[63.75,47.81,47.81]],
          [[360,25,50],[127.5,95.62,95.62]],
          [[360,25,75],[191.25,143.43,143.43]],
          [[360,25,100],[255,191.25,191.25]],
          [[360,50,0],[0,0,0]],
          [[360,50,25],[63.75,31.87,31.87]],
          [[360,50,50],[127.5,63.75,63.75]],
          [[360,50,75],[191.25,95.62,95.62]],
          [[360,50,100],[255,127.5,127.5]],
          [[360,75,0],[0,0,0]],
          [[360,75,25],[63.75,15.93,15.93]],
          [[360,75,50],[127.5,31.87,31.87]],
          [[360,75,75],[191.25,47.81,47.81]],
          [[360,75,100],[255,63.75,63.75]],
          [[360,100,0],[0,0,0]],
          [[360,100,25],[63.75,0,0]],
          [[360,100,50],[127.5,0,0]],
          [[360,100,75],[191.25,0,0]],
          [[360,100,100],[255,0,0]]
        ],

        toHsl: [
          [[0,0,0],[0,0,0]],
          [[0,0,25],[0,0,25]],
          [[0,0,50],[0,0,50]],
          [[0,0,75],[0,0,75]],
          [[0,0,100],[0,0,100]],
          [[0,25,0],[0,0,0]],
          [[0,25,25],[0,14.28,21.87]],
          [[0,25,50],[0,14.28,43.75]],
          [[0,25,75],[0,27.27,65.62]],
          [[0,25,100],[0,100,87.5]],
          [[0,50,0],[0,0,0]],
          [[0,50,25],[0,33.33,18.75]],
          [[0,50,50],[0,33.33,37.5]],
          [[0,50,75],[0,42.85,56.25]],
          [[0,50,100],[0,100,75]],
          [[0,75,0],[0,0,0]],
          [[0,75,25],[0,60,15.62]],
          [[0,75,50],[0,60,31.25]],
          [[0,75,75],[0,60,46.87]],
          [[0,75,100],[0,100,62.5]],
          [[0,100,0],[0,0,0]],
          [[0,100,25],[0,100,12.5]],
          [[0,100,50],[0,100,25]],
          [[0,100,75],[0,100,37.5]],
          [[0,100,100],[0,100,50]],
          [[90,0,0],[90,0,0]],
          [[90,0,25],[90,0,25]],
          [[90,0,50],[90,0,50]],
          [[90,0,75],[90,0,75]],
          [[90,0,100],[90,0,100]],
          [[90,25,0],[90,0,0]],
          [[90,25,25],[90,14.28,21.87]],
          [[90,25,50],[90,14.28,43.75]],
          [[90,25,75],[90,27.27,65.62]],
          [[90,25,100],[90,100,87.5]],
          [[90,50,0],[90,0,0]],
          [[90,50,25],[90,33.33,18.75]],
          [[90,50,50],[90,33.33,37.5]],
          [[90,50,75],[90,42.85,56.25]],
          [[90,50,100],[90,100,75]],
          [[90,75,0],[90,0,0]],
          [[90,75,25],[90,60,15.62]],
          [[90,75,50],[90,60,31.25]],
          [[90,75,75],[90,60,46.87]],
          [[90,75,100],[90,100,62.5]],
          [[90,100,0],[90,0,0]],
          [[90,100,25],[90,100,12.5]],
          [[90,100,50],[90,100,25]],
          [[90,100,75],[90,100,37.5]],
          [[90,100,100],[90,100,50]],
          [[180,0,0],[180,0,0]],
          [[180,0,25],[180,0,25]],
          [[180,0,50],[180,0,50]],
          [[180,0,75],[180,0,75]],
          [[180,0,100],[180,0,100]],
          [[180,25,0],[180,0,0]],
          [[180,25,25],[180,14.28,21.87]],
          [[180,25,50],[180,14.28,43.75]],
          [[180,25,75],[180,27.27,65.62]],
          [[180,25,100],[180,100,87.5]],
          [[180,50,0],[180,0,0]],
          [[180,50,25],[180,33.33,18.75]],
          [[180,50,50],[180,33.33,37.5]],
          [[180,50,75],[180,42.85,56.25]],
          [[180,50,100],[180,100,75]],
          [[180,75,0],[180,0,0]],
          [[180,75,25],[180,60,15.62]],
          [[180,75,50],[180,60,31.25]],
          [[180,75,75],[180,60,46.87]],
          [[180,75,100],[180,100,62.5]],
          [[180,100,0],[180,0,0]],
          [[180,100,25],[180,100,12.5]],
          [[180,100,50],[180,100,25]],
          [[180,100,75],[180,100,37.5]],
          [[180,100,100],[180,100,50]],
          [[270,0,0],[270,0,0]],
          [[270,0,25],[270,0,25]],
          [[270,0,50],[270,0,50]],
          [[270,0,75],[270,0,75]],
          [[270,0,100],[270,0,100]],
          [[270,25,0],[270,0,0]],
          [[270,25,25],[270,14.28,21.87]],
          [[270,25,50],[270,14.28,43.75]],
          [[270,25,75],[270,27.27,65.62]],
          [[270,25,100],[270,100,87.5]],
          [[270,50,0],[270,0,0]],
          [[270,50,25],[270,33.33,18.75]],
          [[270,50,50],[270,33.33,37.5]],
          [[270,50,75],[270,42.85,56.25]],
          [[270,50,100],[270,100,75]],
          [[270,75,0],[270,0,0]],
          [[270,75,25],[270,60,15.62]],
          [[270,75,50],[270,60,31.25]],
          [[270,75,75],[270,60,46.87]],
          [[270,75,100],[270,100,62.5]],
          [[270,100,0],[270,0,0]],
          [[270,100,25],[270,100,12.5]],
          [[270,100,50],[270,100,25]],
          [[270,100,75],[270,100,37.5]],
          [[270,100,100],[270,100,50]],
          [[360,0,0],[360,0,0]],
          [[360,0,25],[360,0,25]],
          [[360,0,50],[360,0,50]],
          [[360,0,75],[360,0,75]],
          [[360,0,100],[360,0,100]],
          [[360,25,0],[360,0,0]],
          [[360,25,25],[360,14.28,21.87]],
          [[360,25,50],[360,14.28,43.75]],
          [[360,25,75],[360,27.27,65.62]],
          [[360,25,100],[360,100,87.5]],
          [[360,50,0],[360,0,0]],
          [[360,50,25],[360,33.33,18.75]],
          [[360,50,50],[360,33.33,37.5]],
          [[360,50,75],[360,42.85,56.25]],
          [[360,50,100],[360,100,75]],
          [[360,75,0],[360,0,0]],
          [[360,75,25],[360,60,15.62]],
          [[360,75,50],[360,60,31.25]],
          [[360,75,75],[360,60,46.87]],
          [[360,75,100],[360,100,62.5]],
          [[360,100,0],[360,0,0]],
          [[360,100,25],[360,100,12.5]],
          [[360,100,50],[360,100,25]],
          [[360,100,75],[360,100,37.5]],
          [[360,100,100],[360,100,50]]
        ]

      }
    }

  };


  describe('Convert', function () {
    for (var from in tests) {
      var test = tests[from];
        for (var to in test.convert) {
          itShouldConvert(from, to, test.convert[to]);
        }
    }

    function itShouldConvert (from, to, tests) {
      it('should convert '+from+' to '+to, function () {
        tests.forEach(function (test) {
          var input = test[0];
          var expected = test[1];
          var actual;

          var fromSimple = (from === 'fromHex' || from === 'fromGrayscale');
          var toSimple = (to === 'toHex' || to === 'toGrayscale');

          var fromArray = from + 'Array';
          var fromObject = from + 'Object';
          var toArray = to + 'Array';
          var toObject = to + 'Object';
          var toRawArray = toArray.replace('to', 'toRaw');
          var toRawObject = toObject.replace('to', 'toRaw');

          if (fromSimple && toSimple) {
            // fromHex().toGrayscale()
            actual = Colr[from](input)[to]();
            compare(actual, expected);
          }

          if (fromSimple && ! toSimple) {
            // fromHex().toRgbArray()
            actual = Colr[from](input)[toArray]();
            compare(actual, round(expected));

            // fromHex().toRgbObject()
            actual = Colr[from](input)[toObject]();
            compare(actual, arr2obj(to, round(expected)));

            // fromHex().toRawRgbArray()
            actual = Colr[from](input)[toRawArray]();
            compare(round2(actual), expected);

            // fromHex().toRawRgbObject()
            actual = Colr[from](input)[toRawObject]();
            compare(round2(actual), arr2obj(to, expected));
          }

          if (! fromSimple && toSimple) {
            // fromRgb().toHex()
            actual = Colr[from].apply(null, input)[to]();
            compare(round2(actual), expected);

            // fromRgbArray().toHex()
            actual = Colr[fromArray](input)[to]();
            compare(round2(actual), expected);

            // fromRgbObject().toHex()
            actual = Colr[fromObject](arr2obj(from, input))[to]();
            compare(round2(actual), expected);
          }

          if (! fromSimple && ! toSimple) {
            // fromRgb().toRgbArray()
            actual = Colr[from].apply(null, input)[toArray]();
            compare(actual, round(expected));

            // fromRgb().toRgbObject()
            actual = Colr[from].apply(null, input)[toObject]();
            compare(actual, arr2obj(to, round(expected)));

            // fromRgb().toRawRgbArray()
            actual = Colr[from].apply(null, input)[toRawArray]();
            compare(round2(actual), expected);

            // fromRgb().toRawRgbObject()
            actual = Colr[from].apply(null, input)[toRawObject]();
            compare(round2(actual), arr2obj(to, expected));

            // fromRgbArray().toRgbArray()
            actual = Colr[fromArray](input)[toArray]();
            compare(actual, round(expected));

            // fromRgbArray().toRgbObject()
            actual = Colr[fromArray](input)[toObject]();
            compare(actual, round(arr2obj(to, expected)));

            // fromRgbArray().toRawRgbArray()
            actual = Colr[fromArray](input)[toRawArray]();
            compare(round2(actual), expected);

            // fromRgbArray().toRawRgbObject()
            actual = Colr[fromArray](input)[toRawObject]();
            compare(round2(actual), arr2obj(to, expected));

            // fromRgbObject().toRgbArray()
            actual = Colr[fromObject](arr2obj(from, input))[toArray]();
            compare(actual, round(expected));

            // fromRgbObject().toRgbObject()
            actual = Colr[fromObject](arr2obj(from, input))[toObject]();
            compare(actual, round(arr2obj(to, expected)));

            // fromRgbObject().toRawRgbArray()
            actual = Colr[fromObject](arr2obj(from, input))[toRawArray]();
            compare(round2(actual), expected);

            // fromRgbObject().toRawRgbObject()
            actual = Colr[fromObject](arr2obj(from, input))[toRawObject]();
            compare(round2(actual), arr2obj(to, expected));
          }
        });
      });
    }
  });

  describe('Alter', function () {
    for (var from in tests) {
      var test = tests[from];
      for (var method in test.alter) {
        itShouldAlter(method, test.alter[method]);
      }
    }

    function itShouldAlter (method, tests) {
      it('should alter using '+method, function () {
        tests.forEach(function (test) {
          var amount = test[0];
          var input = test[1];
          var expected = test[2];
          var actual = Colr.fromHex(input)[method](amount).toHex();
          compare(actual, expected);
        });
      });
    }
  });

  describe('Error Detection', function () {
    for (var from in tests) {
      var test = tests[from];
      if (test.fail) {
        itShouldFail(from, test.fail);
      }
    }

    function itShouldFail (type, tests) {
      it('should fail using '+type, function () {
        tests.forEach(function (input) {
          assert.throws(function () {
            Colr[from](input);
          });
        });
      });
    }
  });



  /*
   * MISC
   */

  it('should clone a color', function () {
    var a = Colr.fromHex('aaa');
    var b = a.clone();
    var c = b.clone();

    a.lighten(20);
    b.darken(20);
    c.lighten(30);

    compare(a.toHex(), '#dddddd');
    compare(b.toHex(), '#777777');
    compare(c.toHex(), '#f6f6f6');
  });


  /*
   * UTILS
   */

  function compare (actual, expected) {
    if (typeof expected === 'object') {
      assert.deepEqual(actual, expected);
    } else {
      assert.equal(actual, expected);
    }
  }

  function round (n) {
    if (Array.isArray(n)) {
      return n.map(Math.round);
    } else if (typeof n === 'object') {
      for (var key in n) {
        n[key] = Math.round(n[key]);
      }
    } else if (typeof n === 'number') {
      return Math.round(n);
    }
    return n;
  }

  function round2 (n) {
    if (Array.isArray(n)) {
      return n.map(function (n) { return Math.floor(n * 100) / 100; });
    } else if (typeof n === 'object') {
      for (var key in n) {
        n[key] = Math.floor(n[key] * 100) / 100;
      }
    } else if (typeof n === 'number') {
      return Math.floor(n * 100) / 100;
    }
    return n;
  }

  function arr2obj(type, arr) {
    type = type.toLowerCase();
    if (type.indexOf('rgb') > -1) {
      return { r: arr[0], g: arr[1], b: arr[2] };
    }
    if (type.indexOf('hsl') > -1) {
      return { h: arr[0], s: arr[1], l: arr[2] };
    }
    if (type.indexOf('hsv') > -1) {
      return { h: arr[0], s: arr[1], v: arr[2] };
    }
  }


});