| // Copyright 2025 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| (async function(testRunner) { |
| const {page, session, dp} = await testRunner.startWithFrameControl( |
| 'Tests sequence of input event processing.'); |
| |
| const RendererTestHelper = |
| await testRunner.loadScript('../helpers/renderer-test-helper.js'); |
| const {httpInterceptor} = |
| await (new RendererTestHelper(testRunner, dp, page)).init(); |
| |
| httpInterceptor.addResponse( |
| `http://example.com/`, |
| `<html> |
| <button style="width: 200px; height: 200px" |
| onclick="window.result = 'PASSED'"> |
| CLICK ME |
| </button> |
| </html>`); |
| |
| await dp.Runtime.enable(); |
| |
| const {virtualTimeTicksBase} = (await dp.Emulation.setVirtualTimePolicy({ |
| policy: 'pause'})).result; |
| await dp.Page.navigate({url: 'http://example.com'}); |
| |
| // This test needs virtual time to consistently expose the problem. |
| const virtualTimeBudget = 1000; |
| dp.Emulation.setVirtualTimePolicy({ |
| policy: 'pauseIfNetworkFetchesPending', |
| budget: virtualTimeBudget}); |
| await dp.Emulation.onceVirtualTimeBudgetExpired(); |
| // Also, one frame to trigger DeferRendererTasksAfterInput logic. |
| await dp.HeadlessExperimental.beginFrame({ |
| frameTimeTicks: virtualTimeTicksBase + virtualTimeBudget, |
| interval: 100, |
| noDisplayUpdates: false |
| }); |
| await dp.Performance.enable(); |
| |
| async function click(x, y) { |
| dp.Input.dispatchMouseEvent({type: 'mouseMoved', x, y}); |
| await dp.Input.dispatchMouseEvent({ |
| type: 'mousePressed', x, y, button: 'left', buttons: 1, clickCount: 1}); |
| return dp.Input.dispatchMouseEvent({ |
| type: 'mouseReleased', x, y, button: 'left', buttons: 0}); |
| } |
| await click(100, 100); |
| |
| // This gets dispatched on the IO thread. |
| await dp.Performance.getMetrics(); |
| testRunner.log(await session.evaluate(`window.result`)); |
| testRunner.completeTest(); |
| }) |
