17cd8703f9
Rather than maintain our own test runner we should instead lean on the community and use Mocha which is very popular and also our test runner of choice in DevTools too. Note that this commit doesn't remove the TestRunner source as it's still used for other unit tests, but they will be updated in a future PR and then we can remove the TestRunner. The main bulk of this PR is updating the tests as the old TestRunner passed in contextual data via the `it` function callback whereas Mocha does not, so we introduce some helpers for the tests to make it easier.
93 lines
3.3 KiB
JavaScript
93 lines
3.3 KiB
JavaScript
/**
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* Copyright 2018 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const {waitEvent} = require('./utils');
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const expect = require('expect');
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const {getTestState, setupTestBrowserHooks, setupTestPageAndContextHooks} = require('./mocha-utils');
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describeChromeOnly('Target.createCDPSession', function() {
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setupTestBrowserHooks();
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setupTestPageAndContextHooks();
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it('should work', async() => {
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const { page } = getTestState();
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const client = await page.target().createCDPSession();
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await Promise.all([
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client.send('Runtime.enable'),
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client.send('Runtime.evaluate', { expression: 'window.foo = "bar"' })
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]);
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const foo = await page.evaluate(() => window.foo);
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expect(foo).toBe('bar');
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});
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it('should send events', async() => {
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const { page, server } = getTestState();
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const client = await page.target().createCDPSession();
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await client.send('Network.enable');
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const events = [];
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client.on('Network.requestWillBeSent', event => events.push(event));
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await page.goto(server.EMPTY_PAGE);
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expect(events.length).toBe(1);
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});
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it('should enable and disable domains independently', async() => {
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const { page } = getTestState();
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const client = await page.target().createCDPSession();
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await client.send('Runtime.enable');
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await client.send('Debugger.enable');
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// JS coverage enables and then disables Debugger domain.
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await page.coverage.startJSCoverage();
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await page.coverage.stopJSCoverage();
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// generate a script in page and wait for the event.
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const [event] = await Promise.all([
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waitEvent(client, 'Debugger.scriptParsed'),
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page.evaluate('//# sourceURL=foo.js')
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]);
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// expect events to be dispatched.
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expect(event.url).toBe('foo.js');
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});
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it('should be able to detach session', async() => {
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const { page } = getTestState();
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const client = await page.target().createCDPSession();
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await client.send('Runtime.enable');
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const evalResponse = await client.send('Runtime.evaluate', {expression: '1 + 2', returnByValue: true});
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expect(evalResponse.result.value).toBe(3);
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await client.detach();
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let error = null;
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try {
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await client.send('Runtime.evaluate', {expression: '3 + 1', returnByValue: true});
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} catch (e) {
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error = e;
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}
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expect(error.message).toContain('Session closed.');
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});
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it('should throw nice errors', async() => {
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const { page } = getTestState();
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const client = await page.target().createCDPSession();
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const error = await theSourceOfTheProblems().catch(error => error);
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expect(error.stack).toContain('theSourceOfTheProblems');
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expect(error.message).toContain('ThisCommand.DoesNotExist');
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async function theSourceOfTheProblems() {
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await client.send('ThisCommand.DoesNotExist');
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}
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});
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});
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