| // Copyright 2019 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) { |
| var {page, session, dp} = await testRunner.startWithFrameControl( |
| 'Tests that beginFrame correctly reports an error ' + |
| 'with another pending frame.'); |
| |
| await dp.Runtime.enable(); |
| |
| const virtualTimeChunkSize = 100; |
| const virtualTimeTicksBase = (await dp.Emulation.setVirtualTimePolicy({ |
| policy: 'pause' |
| })).result.virtualTimeTicksBase; |
| dp.Emulation.setVirtualTimePolicy( |
| {policy: 'pauseIfNetworkFetchesPending', budget: virtualTimeChunkSize}); |
| |
| await dp.Emulation.onceVirtualTimeBudgetExpired(); |
| const frameTimeTicks = 100; |
| dp.HeadlessExperimental.beginFrame({ |
| frameTimeTicks: virtualTimeTicksBase + frameTimeTicks, |
| interval: virtualTimeChunkSize, |
| noDisplayUpdates: false |
| }); |
| const response = await dp.HeadlessExperimental.beginFrame({ |
| frameTimeTicks: virtualTimeTicksBase + frameTimeTicks, |
| interval: virtualTimeChunkSize, |
| noDisplayUpdates: false |
| }); |
| |
| testRunner.log(`response: ${JSON.stringify(response.error)}`); |
| testRunner.completeTest(); |
| }) |
