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/**
* @license
* Copyright 2018 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import expect from 'expect';
import type {Target} from 'puppeteer-core/internal/api/Target.js';
import {isErrorLike} from 'puppeteer-core/internal/util/ErrorLike.js';
import {getTestState, setupTestBrowserHooks} from '../mocha-utils.js';
import {waitEvent} from '../utils.js';
describe('Target.createCDPSession', function () {
setupTestBrowserHooks();
it('should work', async () => {
const {page} = await getTestState();
const client = await page.createCDPSession();
await Promise.all([
client.send('Runtime.enable'),
client.send('Runtime.evaluate', {expression: 'window.foo = "bar"'}),
]);
const foo = await page.evaluate(() => {
return (globalThis as any).foo;
});
expect(foo).toBe('bar');
});
it('should not report created targets for custom CDP sessions', async () => {
const {browser} = await getTestState();
let called = 0;
const handler = async (target: Target) => {
called++;
if (called > 1) {
throw new Error('Too many targets created');
}
await target.createCDPSession();
};
browser.browserContexts()[0]!.on('targetcreated', handler);
await browser.newPage();
browser.browserContexts()[0]!.off('targetcreated', handler);
});
it('should send events', async () => {
const {page, server} = await getTestState();
const client = await page.createCDPSession();
await client.send('Network.enable');
const events: unknown[] = [];
client.on('Network.requestWillBeSent', event => {
events.push(event);
});
await Promise.all([
waitEvent(client, 'Network.requestWillBeSent'),
page.goto(server.EMPTY_PAGE),
]);
expect(events).toHaveLength(1);
});
it('should enable and disable domains independently', async () => {
const {page} = await getTestState();
const client = await page.createCDPSession();
await client.send('Runtime.enable');
await client.send('Debugger.enable');
// JS coverage enables and then disables Debugger domain.
await page.coverage.startJSCoverage();
await page.coverage.stopJSCoverage();
// generate a script in page and wait for the event.
const [event] = await Promise.all([
waitEvent(client, 'Debugger.scriptParsed'),
page.evaluate('//# sourceURL=foo.js'),
]);
// expect events to be dispatched.
expect(event.url).toBe('foo.js');
});
it('should be able to detach session', async () => {
const {page} = await getTestState();
const client = await page.createCDPSession();
await client.send('Runtime.enable');
const evalResponse = await client.send('Runtime.evaluate', {
expression: '1 + 2',
returnByValue: true,
});
expect(evalResponse.result.value).toBe(3);
await client.detach();
let error!: Error;
try {
await client.send('Runtime.evaluate', {
expression: '3 + 1',
returnByValue: true,
});
} catch (error_) {
if (isErrorLike(error_)) {
error = error_ as Error;
}
}
expect(error.message).toContain('Session closed.');
});
it('should throw nice errors', async () => {
const {page} = await getTestState();
const client = await page.createCDPSession();
const error = await theSourceOfTheProblems().catch(error => {
return error;
});
expect(error.stack).toContain('theSourceOfTheProblems');
expect(error.message).toContain('ThisCommand.DoesNotExist');
async function theSourceOfTheProblems() {
// @ts-expect-error This fails in TS as it knows that command does not
// exist but we want to have this tests for our users who consume in JS
// not TS.
await client.send('ThisCommand.DoesNotExist');
}
});
it('should respect custom timeout', async () => {
const {page} = await getTestState();
const client = await page.createCDPSession();
await expect(
client.send(
'Runtime.evaluate',
{
expression: 'new Promise(resolve => {})',
awaitPromise: true,
},
{
timeout: 50,
}
)
).rejects.toThrowError(
`Runtime.evaluate timed out. Increase the 'protocolTimeout' setting in launch/connect calls for a higher timeout if needed.`
);
});
it('should expose the underlying connection', async () => {
const {page} = await getTestState();
const client = await page.createCDPSession();
expect(client.connection()).toBeTruthy();
});
});
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