| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| (async function(testRunner) { |
| let {page, session, dp} = await testRunner.startWithFrameControl( |
| 'Tests renderer: canvas.'); |
| |
| await dp.Runtime.enable(); |
| await dp.HeadlessExperimental.enable(); |
| |
| let RendererTestHelper = |
| await testRunner.loadScript('../helpers/renderer-test-helper.js'); |
| let {httpInterceptor, frameNavigationHelper, virtualTimeController} = |
| await (new RendererTestHelper(testRunner, dp, page)).init(); |
| |
| httpInterceptor.addResponse( |
| `http://example.com/`, |
| `<html> |
| <body> |
| <canvas id="test_canvas" width="100" height="100" |
| style="position:absolute;left:0px;top:0px"> |
| Oops! Canvas not supported! |
| </canvas> |
| <script> |
| var context = document.getElementById("test_canvas"). |
| getContext("2d"); |
| context.fillStyle = "rgb(255,0,0)"; |
| context.fillRect(25, 25, 50, 50); |
| </script> |
| </body> |
| </html>`); |
| |
| await virtualTimeController.grantInitialTime(500, 1000, |
| null, |
| async () => { |
| const ctx = await virtualTimeController.captureScreenshot(); |
| const rgba = ctx.getImageData(0, 0, 1, 1).data; |
| testRunner.log(`rgba @(0,0): ${rgba}`); |
| // Expected rgba @(25,25): 255,0,0,255 |
| const rgba2 = ctx.getImageData(25, 25, 1, 1).data; |
| testRunner.log(`rgba @(25,25): ${rgba2}`); |
| testRunner.completeTest(); |
| } |
| ); |
| |
| await frameNavigationHelper.navigate('http://example.com/'); |
| }) |
