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Diffstat (limited to 'node_modules/chroma-js/test/colors-test.coffee')
| -rw-r--r-- | node_modules/chroma-js/test/colors-test.coffee | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/node_modules/chroma-js/test/colors-test.coffee b/node_modules/chroma-js/test/colors-test.coffee new file mode 100644 index 0000000000..3d5342a34e --- /dev/null +++ b/node_modules/chroma-js/test/colors-test.coffee @@ -0,0 +1,118 @@ +require 'es6-shim' +vows = require 'vows' +assert = require 'assert' +chroma = require '../chroma' + + +vows + .describe('Some tests for chroma.color()') + + .addBatch + + 'named colors': + topic: chroma 'red' + 'hex': (topic) -> assert.equal topic.hex(), '#ff0000' + 'rgb': (topic) -> assert.deepEqual topic.rgb(), [255,0,0] + + 'hex colors': + topic: chroma '#f00' + 'name': (topic) -> assert.equal topic.name(), 'red' + 'hex': (topic) -> assert.equal topic.hex(), '#ff0000' + 'rgb': (topic) -> assert.deepEqual topic.rgb(), [255,0,0] + + 'hex color, no #': + topic: chroma 'F00' + 'name': (topic) -> assert.equal topic.name(), 'red' + 'hex': (topic) -> assert.equal topic.hex(), '#ff0000' + 'rgb': (topic) -> assert.deepEqual topic.rgb(), [255,0,0] + + 'gl color': + topic: chroma.gl 1,0,0 + 'name': (topic) -> assert.equal topic.name(), 'red' + 'hex': (topic) -> assert.equal topic.hex(), '#ff0000' + 'rgb': (topic) -> assert.deepEqual topic.rgb(), [255,0,0] + + 'gl color w/ alpha': + topic: chroma.gl 0,0,1,0.5 + 'rgba': (topic) -> assert.deepEqual topic.rgba(), [0,0,255,0.5] + + 'modify colors': + topic: chroma 'F00' + 'darken': (topic) -> assert.equal topic.darken(10).hex(), '#dd0000' + 'darker': (topic) -> assert.equal topic.darker(10).hex(), '#dd0000' + 'brighten': (topic) -> assert.equal topic.brighten(10).hex(), '#ff3e20' + 'brighter': (topic) -> assert.equal topic.brighter(10).hex(), '#ff3e20' + 'saturate': (topic) -> assert.equal topic.saturate().hex(), '#ff0000' + 'desaturate': (topic) -> assert.equal topic.desaturate().hex(), '#ec3d23' + + 'parsing css color rgb': + topic: chroma 'rgb(255,0,0)' + 'hex': (topic) -> assert.equal topic.hex(), '#ff0000' + + 'parsing rgba css color': + topic: chroma 'rgba(128,0,128,0.5)' + 'hex': (topic) -> assert.equal topic.hex(), '#800080' + 'alpha': (topic) -> assert.equal topic.alpha(), 0.5 + 'css': (topic) -> assert.equal topic.css(), 'rgba(128,0,128,0.5)' + + 'parsing hsla css color': + topic: chroma 'hsla(240,100%,50%,0.5)' + 'hex': (topic) -> assert.equal topic.hex(), '#0000ff' + 'alpha': (topic) -> assert.equal topic.alpha(), 0.5 + 'css': (topic) -> assert.equal topic.css(), 'rgba(0,0,255,0.5)' + + 'hsla color': + topic: chroma 'lightsalmon' + 'css (default)': (topic) -> assert.equal topic.css(), 'rgb(255,160,122)' + 'css (rgb)': (topic) -> assert.equal topic.css('rgb'), 'rgb(255,160,122)' + 'css (hsl)': (topic) -> assert.equal chroma(topic.css('hsl')).name(), 'lightsalmon' + 'css (rgb-css)': (topic) -> assert.equal chroma(topic.css('rgb')).name(), 'lightsalmon' + + 'rgb color': + topic: chroma 255,0,0 + 'hex': (topic) -> assert.equal topic.hex(), '#ff0000' + + 'hsv black': + topic: chroma('black').hsv() + 'hue is NaN': (topic) -> assert isNaN topic[0] + 'but hue is defined': (topic) -> assert topic[0]? + + 'interpolate in hsv': + topic: chroma.interpolate 'white', 'black', 0.5, 'hsv' + 'hex': (topic) -> assert.equal topic.hex(), '#808080' + + 'hsl black': + topic: chroma('black').hsl() + 'hue is NaN': (topic) -> assert isNaN topic[0] + 'but hue is defined': (topic) -> assert topic[0]? + 'sat is 0': (topic) -> assert.equal topic[1], 0 + 'lightness is 0': (topic) -> assert.equal topic[2], 0 + + 'interpolate in hsl': + topic: chroma.interpolate 'lightyellow', 'navy', 0.5, 'hsl' + 'hex': (topic) -> assert.equal topic.hex(), '#31ff98' + + 'premultiply': + topic: chroma 'rgba(32, 48, 96, 0.5)' + 'premultiply rgba': (topic) -> assert.deepEqual topic.premultiply().rgba(), [16, 24, 48, 0.5] + 'premultiply hex': (topic) -> assert.equal topic.premultiply().hex(), '#101830' + + 'toString': + topic: chroma '#adff2f' + 'explicit': (topic) -> assert.equal topic.toString(), 'greenyellow' + 'implicit': (topic) -> assert.equal ''+topic, 'greenyellow' + 'implicit2': (topic) -> assert.equal String(topic), 'greenyellow' + + 'constructing with array, but no mode': + topic: chroma [255, 0, 0] + 'falls back to rgb': (topic) -> assert.equal topic.hex(), chroma([255, 0, 0],'rgb').hex() + + 'css rgb colors': + topic: chroma.scale("YlGnBu")(0.3).css() + 'have rounded rgb() values': (topic) -> assert.equal topic, 'rgb(170,222,183)' + + 'css rgba colors': + topic: chroma.scale("YlGnBu")(0.3).alpha(0.675).css() + 'dont round alpha value': (topic) -> assert.equal topic, 'rgba(170,222,183,0.675)' + + .export(module) |