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* svg plain examples works * more code reuse in visual tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| (function(exports) { | ||
|
|
||
| exports.getFixture = function(name, original, callback) { | ||
| getImage(getFixtureName(name), original, callback); | ||
| }; | ||
|
|
||
| exports.getAsset = function(name, callback) { | ||
| var finalName = getAssetName(name); | ||
| if (fabric.isLikelyNode) { | ||
| return fs.readFile(finalName, { encoding: 'utf8' }, callback); | ||
| } | ||
| else { | ||
| fabric.util.request(finalName, { | ||
| onComplete: function(xhr) { | ||
| callback(null, xhr.responseText); | ||
| } | ||
| }); | ||
| } | ||
| }; | ||
|
|
||
| function getAbsolutePath(path) { | ||
| var isAbsolute = /^https?:/.test(path); | ||
| if (isAbsolute) { return path; }; | ||
| var imgEl = fabric.document.createElement('img'); | ||
| imgEl.src = path; | ||
| var src = imgEl.src; | ||
| imgEl = null; | ||
| return src; | ||
| } | ||
|
|
||
| function getAssetName(filename) { | ||
| var finalName = '/assets/' + filename + '.svg'; | ||
| return fabric.isLikelyNode ? (__dirname + '/../visual' + finalName) : getAbsolutePath('/test/visual' + finalName); | ||
| } | ||
|
|
||
| function getGoldeName(filename) { | ||
| var finalName = '/golden/' + filename; | ||
| return fabric.isLikelyNode ? (__dirname + '/../visual' + finalName) : getAbsolutePath('/test/visual' + finalName); | ||
| } | ||
|
|
||
| function getFixtureName(filename) { | ||
| var finalName = '/fixtures/' + filename; | ||
| return fabric.isLikelyNode ? (__dirname + '/..' + finalName) : getAbsolutePath('/test' + finalName); | ||
| } | ||
|
|
||
| function getImage(filename, original, callback) { | ||
| if (fabric.isLikelyNode && original) { | ||
| try { | ||
| fs.statSync(filename); | ||
| } | ||
| catch (err) { | ||
| var dataUrl = original.toDataURL().split(',')[1]; | ||
| console.log('creating original for ', filename); | ||
| fs.writeFileSync(filename, dataUrl, { encoding: 'base64' }); | ||
| } | ||
| } | ||
| var img = fabric.document.createElement('img'); | ||
| img.onload = function() { | ||
| img.onload = null; | ||
| callback(img); | ||
| }; | ||
| img.onerror = function(err) { | ||
| img.onerror = null; | ||
| callback(img); | ||
| console.log('Image loading errored', err); | ||
| }; | ||
| img.src = filename; | ||
| } | ||
|
|
||
| exports.visualTestLoop = function(fabricCanvas, QUnit) { | ||
| var _pixelMatch; | ||
| var visualCallback; | ||
| var imageDataToChalk; | ||
| if (fabric.isLikelyNode) { | ||
| _pixelMatch = global.pixelmatch; | ||
| visualCallback = global.visualCallback; | ||
| imageDataToChalk = global.imageDataToChalk; | ||
| } | ||
| else { | ||
| if (window) { | ||
| _pixelMatch = window.pixelmatch; | ||
| visualCallback = window.visualCallback; | ||
| } | ||
| imageDataToChalk = function() { return ''; }; | ||
| } | ||
|
|
||
| var pixelmatchOptions = { | ||
| includeAA: false, | ||
| threshold: 0.095 | ||
| }; | ||
|
|
||
| function beforeEachHandler() { | ||
| fabricCanvas.clipPath = null; | ||
| fabricCanvas.viewportTransform = [1, 0, 0, 1, 0, 0]; | ||
| fabricCanvas.clear(); | ||
| fabricCanvas.renderAll(); | ||
| } | ||
|
|
||
| return function testCallback(testObj) { | ||
| var testName = testObj.test; | ||
| var code = testObj.code; | ||
| var percentage = testObj.percentage; | ||
| var golden = testObj.golden; | ||
| var newModule = testObj.newModule; | ||
| if (newModule) { | ||
| QUnit.module(newModule, { | ||
| beforeEach: beforeEachHandler, | ||
| }); | ||
| } | ||
| QUnit.test(testName, function(assert) { | ||
| var done = assert.async(); | ||
| code(fabricCanvas, function(renderedCanvas) { | ||
| var width = renderedCanvas.width; | ||
| var height = renderedCanvas.height; | ||
| var totalPixels = width * height; | ||
| var imageDataCanvas = renderedCanvas.getContext('2d').getImageData(0, 0, width, height).data; | ||
| var canvas = fabric.document.createElement('canvas'); | ||
| canvas.width = width; | ||
| canvas.height = height; | ||
| var ctx = canvas.getContext('2d'); | ||
| var output = ctx.getImageData(0, 0, width, height); | ||
| getImage(getGoldeName(golden), renderedCanvas, function(goldenImage) { | ||
| ctx.drawImage(goldenImage, 0, 0); | ||
| visualCallback.addArguments({ | ||
| enabled: true, | ||
| golden: canvas, | ||
| fabric: renderedCanvas, | ||
| diff: output | ||
| }); | ||
| var imageDataGolden = ctx.getImageData(0, 0, width, height).data; | ||
| var differentPixels = _pixelMatch(imageDataCanvas, imageDataGolden, output.data, width, height, pixelmatchOptions); | ||
| var percDiff = differentPixels / totalPixels * 100; | ||
| var okDiff = totalPixels * percentage; | ||
| var isOK = differentPixels < okDiff; | ||
| assert.ok( | ||
| isOK, | ||
| testName + ' has too many different pixels ' + differentPixels + '(' + okDiff + ') representing ' + percDiff + '%' | ||
| ); | ||
| if (!isOK) { | ||
| var stringa = imageDataToChalk(output); | ||
| console.log(stringa); | ||
| } | ||
| done(); | ||
| }); | ||
| }); | ||
| }); | ||
| } | ||
| } | ||
| })(typeof window === 'undefined' ? exports : this); |
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