/** * Copyright 2017 Google Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ const fs = require('fs'); const path = require('path'); const {FFOX, CHROMIUM, WEBKIT, OUTPUT_DIR, CHANNEL} = testOptions; registerFixture('outputFile', async ({parallelIndex}, test) => { const outputFile = path.join(OUTPUT_DIR, `trace-${parallelIndex}.json`); await test(outputFile); if (fs.existsSync(outputFile)) fs.unlinkSync(outputFile); }); describe.skip(!CHROMIUM)('Chromium.startTracing', function() { it('should output a trace', async({browser, page, server, outputFile}) => { await browser.startTracing(page, {screenshots: true, path: outputFile}); await page.goto(server.PREFIX + '/grid.html'); await browser.stopTracing(); expect(fs.existsSync(outputFile)).toBe(true); }); it('should run with custom categories if provided', async({browser, page, outputFile}) => { await browser.startTracing(page, {path: outputFile, categories: ['disabled-by-default-v8.cpu_profiler.hires']}); await browser.stopTracing(); const traceJson = JSON.parse(fs.readFileSync(outputFile).toString()); expect(traceJson.metadata['trace-config']).toContain('disabled-by-default-v8.cpu_profiler.hires', 'Does not contain expected category'); }); it('should throw if tracing on two pages', async({browser, page, outputFile}) => { await browser.startTracing(page, {path: outputFile}); const newPage = await browser.newPage(); let error = null; await browser.startTracing(newPage, {path: outputFile}).catch(e => error = e); await newPage.close(); expect(error).toBeTruthy(); await browser.stopTracing(); }); it('should return a buffer', async({browser, page, server, outputFile}) => { await browser.startTracing(page, {screenshots: true, path: outputFile}); await page.goto(server.PREFIX + '/grid.html'); const trace = await browser.stopTracing(); const buf = fs.readFileSync(outputFile); expect(trace.toString()).toEqual(buf.toString(), 'Tracing buffer mismatch'); }); it('should work without options', async({browser, page, server}) => { await browser.startTracing(page); await page.goto(server.PREFIX + '/grid.html'); const trace = await browser.stopTracing(); expect(trace).toBeTruthy(); }); it('should support a buffer without a path', async({browser, page, server}) => { await browser.startTracing(page, {screenshots: true}); await page.goto(server.PREFIX + '/grid.html'); const trace = await browser.stopTracing(); expect(trace.toString()).toContain('screenshot', 'Does not contain screenshot'); }); });