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Diffstat (limited to 'devtools/client/shared/test/unit/test_cssColor-02.js')
-rw-r--r-- | devtools/client/shared/test/unit/test_cssColor-02.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/devtools/client/shared/test/unit/test_cssColor-02.js b/devtools/client/shared/test/unit/test_cssColor-02.js new file mode 100644 index 000000000..c6a039028 --- /dev/null +++ b/devtools/client/shared/test/unit/test_cssColor-02.js @@ -0,0 +1,45 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ +"use strict"; + +/** + * Test color cycling regression - Bug 1303748. + * + * Values should cycle from a starting value, back to their original values. This can + * potentially be a little flaky due to the precision of different color representations. + */ + +const {require} = Components.utils.import("resource://devtools/shared/Loader.jsm", {}); +const {colorUtils} = require("devtools/shared/css/color"); +const getFixtureColorData = require("resource://test/helper_color_data.js"); + +function run_test() { + getFixtureColorData().forEach(({authored, name, hex, hsl, rgb, cycle}) => { + if (cycle) { + const nameCycled = runCycle(name, cycle); + const hexCycled = runCycle(hex, cycle); + const hslCycled = runCycle(hsl, cycle); + const rgbCycled = runCycle(rgb, cycle); + // Cut down on log output by only reporting a single pass/fail for the color. + ok(nameCycled && hexCycled && hslCycled && rgbCycled, + `${authored} was able to cycle back to the original value`); + } + }); +} + +/** + * Test a color cycle to see if a color cycles back to its original value in a fixed + * number of steps. + * + * @param {string} value - The color value, e.g. "#000". + * @param {integer) times - The number of times it takes to cycle back to the + * original color. + */ +function runCycle(value, times) { + let color = new colorUtils.CssColor(value); + for (let i = 0; i < times; i++) { + color.nextColorUnit(); + color = new colorUtils.CssColor(color.toString()); + } + return color.toString() === value; +} |