mirror of
https://github.com/niklasvh/html2canvas.git
synced 2023-08-10 21:13:10 +03:00
288 lines
14 KiB
JavaScript
288 lines
14 KiB
JavaScript
import {expect} from 'chai';
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import parseRefTest from '../scripts/parse-reftest';
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import reftests from './reftests';
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const DOWNLOAD_REFTESTS = true;
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const downloadResult = (filename, data) => {
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const downloadUrl = URL.createObjectURL(new Blob([data], {type: 'text/plain'}));
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const a = document.createElement('a');
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a.href = downloadUrl;
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a.download = filename;
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setTimeout(() => {
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a.click();
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URL.revokeObjectURL(downloadUrl);
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document.body.removeChild(a);
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}, 100);
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document.body.appendChild(a);
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};
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const assertPath = (result, expected, desc) => {
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expect(result.length).to.equal(expected.length, `${desc} path length`);
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expected.forEach((e, i) => {
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const r = result[i];
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expect(r.type).to.equal(e.type, `${desc} type`);
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if (Array.isArray(r)) {
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assertPath(r, e, desc);
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} else {
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switch (r.type) {
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case 'Circle':
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expect(r.x).to.be.closeTo(e.x, 10, `${desc} Circle #${i + 1} x`);
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expect(r.y).to.be.closeTo(e.y, 10, `${desc} Circle #${i + 1} y`);
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expect(r.r).to.equal(e.r, `${desc} Circle #${i + 1} r`);
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break;
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case 'Vector':
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expect(r.x).to.be.closeTo(e.x, 10, `${desc} vector #${i + 1} x`);
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expect(r.y).to.be.closeTo(e.y, 10, `${desc} vector #${i + 1} y`);
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break;
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case 'BezierCurve':
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expect(r.x0).to.be.closeTo(e.x0, 10, `${desc} beziercurve #${i + 1} x0`);
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expect(r.y0).to.be.closeTo(e.y0, 10, `${desc} beziercurve #${i + 1} y0`);
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expect(r.x1).to.be.closeTo(e.x1, 10, `${desc} beziercurve #${i + 1} x1`);
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expect(r.y1).to.be.closeTo(e.y1, 10, `${desc} beziercurve #${i + 1} y1`);
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expect(r.cx0).to.be.closeTo(e.cx0, 10, `${desc} beziercurve #${i + 1} cx0`);
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expect(r.cy0).to.be.closeTo(e.cy0, 10, `${desc} beziercurve #${i + 1} cy0`);
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expect(r.cx1).to.be.closeTo(e.cx1, 10, `${desc} beziercurve #${i + 1} cx1`);
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expect(r.cy1).to.be.closeTo(e.cy1, 10, `${desc} beziercurve #${i + 1} cy1`);
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break;
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default:
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throw new Error(`Unknown path type ${r.type}`);
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}
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}
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});
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};
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(() => {
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const testRunnerUrl = location.href;
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const hasHistoryApi =
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typeof window.history !== 'undefined' && typeof window.history.replaceState !== 'undefined';
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if (typeof reftests === 'undefined') {
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it('Test harness prerequisite check', () => {
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throw new Error(
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'No reftests list defined, run "npm run create-reftest-list" to create it'
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);
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});
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} else {
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Object.keys(reftests).forEach(url => {
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describe(url, function() {
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this.timeout(30000);
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var windowWidth = 800;
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var windowHeight = 600;
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var testContainer = document.createElement('iframe');
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var REFTEST = reftests[url];
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testContainer.width = windowWidth;
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testContainer.height = windowHeight;
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testContainer.style.visibility = 'hidden';
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testContainer.style.position = 'fixed';
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testContainer.style.left = '10000px';
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before(done => {
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testContainer.onload = () => done();
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testContainer.src = url + '?selenium&run=false&reftest&' + Math.random();
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if (hasHistoryApi) {
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// Chrome does not resolve relative background urls correctly inside of a nested iframe
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history.replaceState(null, '', url);
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}
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document.body.appendChild(testContainer);
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});
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after(() => {
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if (hasHistoryApi) {
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history.replaceState(null, '', testRunnerUrl);
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}
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document.body.removeChild(testContainer);
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});
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it('Should render untainted canvas', () => {
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return testContainer.contentWindow
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.html2canvas(testContainer.contentWindow.document.documentElement, {
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removeContainer: true,
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target: [
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new testContainer.contentWindow.html2canvas.CanvasRenderer(),
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new testContainer.contentWindow.RefTestRenderer()
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]
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})
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.then(([canvas, result]) => {
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try {
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canvas
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.getContext('2d')
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.getImageData(0, 0, canvas.width, canvas.height);
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} catch (e) {
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return Promise.reject('Canvas is tainted');
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}
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const delta = 10;
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if (REFTEST) {
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const RESULTS = parseRefTest(result);
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REFTEST.forEach(({action, line, ...args}, i) => {
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const RESULT = RESULTS[i];
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expect(RESULT.action).to.equal(action, `Line ${line}`);
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const desc = `Line ${line} ${action}`;
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switch (action) {
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case 'Window':
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expect(RESULT.width).to.equal(
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args.width,
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`${desc} width`
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);
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expect(RESULT.height).to.be.closeTo(
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args.height,
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delta,
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`${desc} height`
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);
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break;
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case 'Rectangle':
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expect(RESULT.x).to.equal(args.x, `${desc} x`);
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expect(RESULT.y).to.equal(args.y, `${desc} y`);
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expect(RESULT.width).to.equal(
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args.width,
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`${desc} width`
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);
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expect(RESULT.height).to.be.closeTo(
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args.height,
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delta,
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`${desc} height`
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);
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break;
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case 'Fill':
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expect(RESULT.color).to.equal(
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args.color,
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`${desc} color`
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);
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break;
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case 'Opacity':
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expect(RESULT.opacity).to.equal(
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args.opacity,
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`${desc} opacity`
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);
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break;
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case 'Text':
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expect(RESULT.font).to.equal(args.font, `${desc} font`);
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break;
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case 'T':
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expect(RESULT.x).to.be.closeTo(args.x, 10, `${desc} x`);
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expect(RESULT.y).to.be.closeTo(args.y, 10, `${desc} y`);
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expect(RESULT.text).to.equal(args.text, `${desc} text`);
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break;
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case 'Transform':
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expect(RESULT.x).to.be.closeTo(args.x, 10, `${desc} x`);
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expect(RESULT.y).to.be.closeTo(args.y, 10, `${desc} y`);
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expect(RESULT.matrix).to.equal(
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args.matrix,
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`${desc} matrix`
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);
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break;
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case 'Repeat':
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expect(RESULT.x).to.be.closeTo(args.x, 10, `${desc} x`);
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expect(RESULT.y).to.be.closeTo(args.y, 10, `${desc} y`);
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expect(RESULT.width).to.equal(
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args.width,
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`${desc} width`
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);
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expect(RESULT.height).to.equal(
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args.height,
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`${desc} height`
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);
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expect(RESULT.imageSrc).to.equal(
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args.imageSrc,
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`${desc} imageSrc`
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);
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assertPath(RESULT.path, args.path, desc);
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break;
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case 'Gradient':
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expect(RESULT.x).to.be.closeTo(args.x, 10, `${desc} x`);
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expect(RESULT.y).to.be.closeTo(args.y, 10, `${desc} y`);
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expect(RESULT.x0).to.be.closeTo(
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args.x0,
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5,
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`${desc} x0`
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);
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expect(RESULT.y0).to.be.closeTo(
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args.y0,
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5,
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`${desc} y0`
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);
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expect(RESULT.x1).to.be.closeTo(
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args.x1,
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5,
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`${desc} x1`
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);
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expect(RESULT.y1).to.be.closeTo(
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args.y1,
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5,
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`${desc} y1`
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);
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expect(RESULT.stops).to.equal(
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args.stops,
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`${desc} stops`
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);
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expect(RESULT.width).to.equal(
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args.width,
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`${desc} width`
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);
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expect(RESULT.height).to.equal(
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args.height,
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`${desc} height`
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);
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break;
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case 'Draw image':
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expect(RESULT.imageSrc).to.equal(
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args.imageSrc,
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`${desc} stops`
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);
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expect(RESULT.sx).to.equal(args.sx, `${desc} sx`);
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expect(RESULT.sy).to.equal(args.sy, `${desc} sy`);
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expect(RESULT.dx).to.equal(args.dx, `${desc} dx`);
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expect(RESULT.dy).to.equal(args.dy, `${desc} dy`);
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expect(RESULT.sw).to.equal(args.sw, `${desc} sw`);
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expect(RESULT.sh).to.equal(args.sh, `${desc} sh`);
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expect(RESULT.dw).to.equal(args.dw, `${desc} dw`);
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expect(RESULT.dh).to.equal(args.dh, `${desc} dh`);
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break;
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case 'Clip':
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assertPath(RESULT.path, args.path, desc);
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break;
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case 'Shape':
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expect(RESULT.color).to.equal(
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args.color,
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`${desc} color`
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);
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assertPath(RESULT.path, args.path, desc);
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break;
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default:
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console.log(RESULT);
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throw new Error(`Unrecognized action ${action}`);
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}
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});
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} else if (DOWNLOAD_REFTESTS) {
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downloadResult(
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url.slice(url.lastIndexOf('/') + 1).replace(/\.html$/i, '.txt'),
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result
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);
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}
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});
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});
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});
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});
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}
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})();
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