puppeteer/test/mocha-utils.js

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/**
* Copyright 2020 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 {TestServer} = require('../utils/testserver/index');
const path = require('path');
const fs = require('fs');
const puppeteer = require('../');
const utils = require('./utils');
const assertCoverage = require('./coverage-utils');
const setupServer = async() => {
const assetsPath = path.join(__dirname, 'assets');
const cachedPath = path.join(__dirname, 'assets', 'cached');
const port = 8907;
const server = await TestServer.create(assetsPath, port);
server.enableHTTPCache(cachedPath);
server.PORT = port;
server.PREFIX = `http://localhost:${port}`;
server.CROSS_PROCESS_PREFIX = `http://127.0.0.1:${port}`;
server.EMPTY_PAGE = `http://localhost:${port}/empty.html`;
const httpsPort = port + 1;
const httpsServer = await TestServer.createHTTPS(assetsPath, httpsPort);
httpsServer.enableHTTPCache(cachedPath);
httpsServer.PORT = httpsPort;
httpsServer.PREFIX = `https://localhost:${httpsPort}`;
httpsServer.CROSS_PROCESS_PREFIX = `https://127.0.0.1:${httpsPort}`;
httpsServer.EMPTY_PAGE = `https://localhost:${httpsPort}/empty.html`;
return {server, httpsServer};
};
exports.getTestState = () => state;
const product = process.env.PRODUCT || process.env.PUPPETEER_PRODUCT || 'Chromium';
const isHeadless = (process.env.HEADLESS || 'true').trim().toLowerCase() === 'true';
const isFirefox = product === 'firefox';
const isChrome = product === 'Chromium';
const defaultBrowserOptions = {
handleSIGINT: false,
executablePath: process.env.BINARY,
slowMo: false,
headless: isHeadless,
dumpio: !!process.env.DUMPIO,
};
if (defaultBrowserOptions.executablePath) {
console.warn(`WARN: running ${product} tests with ${defaultBrowserOptions.executablePath}`);
} else {
const executablePath = puppeteer.executablePath();
if (!fs.existsSync(executablePath))
throw new Error(`Browser is not downloaded at ${executablePath}. Run 'npm install' and try to re-run tests`);
}
const setupGoldenAssertions = () => {
const suffix = product.toLowerCase();
const GOLDEN_DIR = path.join(__dirname, 'golden-' + suffix);
const OUTPUT_DIR = path.join(__dirname, 'output-' + suffix);
if (fs.existsSync(OUTPUT_DIR))
rm(OUTPUT_DIR);
utils.extendExpectWithToBeGolden(GOLDEN_DIR, OUTPUT_DIR);
};
setupGoldenAssertions();
const state = {};
global.itFailsFirefox = (...args) => {
if (isFirefox)
return xit(...args);
else
return it(...args);
};
global.describeFailsFirefox = (...args) => {
if (isFirefox)
return xdescribe(...args);
else
return describe(...args);
};
global.describeChromeOnly = (...args) => {
if (isChrome)
return describe(...args);
};
if (process.env.COVERAGE)
assertCoverage();
exports.setupTestBrowserHooks = () => {
before(async() => {
const browser = await puppeteer.launch(defaultBrowserOptions);
state.browser = browser;
});
after(async() => {
await state.browser.close();
state.browser = null;
});
};
exports.setupTestPageAndContextHooks = () => {
beforeEach(async() => {
state.context = await state.browser.createIncognitoBrowserContext();
state.page = await state.context.newPage();
});
afterEach(async() => {
await state.context.close();
state.context = null;
state.page = null;
});
};
before(async() => {
const {server, httpsServer} = await setupServer();
state.puppeteer = puppeteer;
state.defaultBrowserOptions = defaultBrowserOptions;
state.server = server;
state.httpsServer = httpsServer;
state.isFirefox = isFirefox;
state.isChrome = isChrome;
state.isHeadless = isHeadless;
state.puppeteerPath = path.resolve(path.join(__dirname, '..'));
});
beforeEach(async() => {
state.server.reset();
state.httpsServer.reset();
});
after(async() => {
await state.server.stop();
state.server = null;
await state.httpsServer.stop();
state.httpsServer = null;
});