mirror of
https://github.com/niklasvh/html2canvas.git
synced 2023-08-10 21:13:10 +03:00
100 lines
3.1 KiB
HTML
100 lines
3.1 KiB
HTML
<html>
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<head>
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<meta charset="utf-8">
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<title>Mocha Tests</title>
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<link rel="stylesheet" href="lib/mocha.css" />
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<script src="../../dist/html2canvas.js"></script>
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<script src="../assets/jquery-1.6.2.js"></script>
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<script src="lib/expect.js"></script>
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<script src="lib/mocha.js"></script>
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<style>
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#block {
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width: 200px;
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height: 200px;
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}
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#green-block {
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width: 200px;
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height: 200px;
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background: green;
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}
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</style>
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</head>
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<body>
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<div id="mocha"></div>
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<div id="block"></div>
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<div id="green-block"></div>
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<script>mocha.setup('bdd')</script>
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<script>
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var Promise = html2canvas.Promise;
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describe("Multiple renders", function() {
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it("render correctly", function(done) {
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this.timeout(10000);
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var d = 0;
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var count = 3;
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for (var i = 0; i < count; i++) {
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html2canvas(document.querySelector('#green-block')).then(function (canvas) {
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expect(canvas.width).to.equal(200);
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expect(canvas.height).to.equal(200);
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validCanvasPixels(canvas);
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canvas.width = canvas.height = 10;
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d++;
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if (d === count) {
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done();
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}
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});
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}
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});
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it("render correctly when non sequential", function(done) {
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this.timeout(10000);
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var d = 0;
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var count = 3;
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for (var i = 0; i < count; i++) {
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html2canvas(document.querySelector('#block'), {onclone: function(document) {
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return new Promise(function(resolve) {
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document.querySelector('#block').style.backgroundColor = 'green';
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setTimeout(function() {
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resolve();
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}, 100);
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});
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}}).then(function (canvas) {
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expect(canvas.width).to.equal(200);
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expect(canvas.height).to.equal(200);
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validCanvasPixels(canvas);
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canvas.width = canvas.height = 10;
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d++;
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if (d === count) {
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done();
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}
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});
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}
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});
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});
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function validCanvasPixels(canvas) {
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var ctx = canvas.getContext("2d");
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var data = ctx.getImageData(0, 0, canvas.width, canvas.height).data;
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for (var i = 0, len = 200*199*4; i < len; i+=4) {
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if (data[i] !== 0 || data[i+1] !== 128 || data[i+2] !== 0 || data[i+3] !== 255) {
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console.log(i, data[i], data[i+1], data[i+2], data[i+3]);
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expect().fail("Invalid canvas data");
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}
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}
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}
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mocha.suite.afterAll(function() {
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document.body.setAttribute('data-complete', 'true');
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});
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mocha.checkLeaks();
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mocha.globals(['jQuery']);
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if (window.mochaPhantomJS) {
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mochaPhantomJS.run();
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}
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else {
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mocha.run();
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}
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</script>
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</body>
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</html>
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