playwright/test/chromium/tracing.jest.js
2020-07-17 13:02:50 -07:00

71 lines
3.1 KiB
JavaScript

/**
* 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');
});
});