playwright/tests/channels.spec.ts

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/**
* Copyright 2017 Google Inc. All rights reserved.
* Modifications copyright (c) Microsoft Corporation.
*
* 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.
*/
import domain from 'domain';
import { test as it, expect } from './config/playwrightTest';
it('should scope context handles', async ({browserType, browserOptions, server}) => {
const browser = await browserType.launch(browserOptions);
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const GOLDEN_PRECONDITION = {
_guid: '',
objects: [
{ _guid: 'android', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [
{ _guid: 'browser', objects: [] }
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] },
{ _guid: 'electron', objects: [] },
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{ _guid: 'Playwright', objects: [] },
{ _guid: 'selectors', objects: [] },
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]
};
await expectScopeState(browser, GOLDEN_PRECONDITION);
const context = await browser.newContext();
const page = await context.newPage();
await page.goto(server.EMPTY_PAGE);
await expectScopeState(browser, {
_guid: '',
objects: [
{ _guid: 'android', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [
{ _guid: 'browser', objects: [
{ _guid: 'browser-context', objects: [
{ _guid: 'frame', objects: [] },
{ _guid: 'page', objects: [
{ _guid: 'request', objects: [] },
{ _guid: 'response', objects: [] },
]},
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]},
] },
] },
{ _guid: 'electron', objects: [] },
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{ _guid: 'Playwright', objects: [] },
{ _guid: 'selectors', objects: [] },
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]
});
await context.close();
await expectScopeState(browser, GOLDEN_PRECONDITION);
await browser.close();
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});
it('should scope CDPSession handles', async ({browserType, browserOptions, browserName}) => {
it.skip(browserName !== 'chromium');
const browser = await browserType.launch(browserOptions);
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const GOLDEN_PRECONDITION = {
_guid: '',
objects: [
{ _guid: 'android', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [
{ _guid: 'browser', objects: [] }
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] },
{ _guid: 'electron', objects: [] },
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{ _guid: 'Playwright', objects: [] },
{ _guid: 'selectors', objects: [] },
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]
};
await expectScopeState(browserType, GOLDEN_PRECONDITION);
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const session = await browser.newBrowserCDPSession();
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await expectScopeState(browserType, {
_guid: '',
objects: [
{ _guid: 'android', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [
{ _guid: 'browser', objects: [
{ _guid: 'cdp-session', objects: [] },
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] },
] },
{ _guid: 'electron', objects: [] },
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{ _guid: 'Playwright', objects: [] },
{ _guid: 'selectors', objects: [] },
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]
});
await session.detach();
await expectScopeState(browserType, GOLDEN_PRECONDITION);
await browser.close();
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});
it('should scope browser handles', async ({browserType, browserOptions}) => {
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const GOLDEN_PRECONDITION = {
_guid: '',
objects: [
{ _guid: 'android', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'electron', objects: [] },
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{ _guid: 'Playwright', objects: [] },
{ _guid: 'selectors', objects: [] },
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]
};
await expectScopeState(browserType, GOLDEN_PRECONDITION);
const browser = await browserType.launch(browserOptions);
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await browser.newContext();
await expectScopeState(browserType, {
_guid: '',
objects: [
{ _guid: 'android', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [] },
{ _guid: 'browser-type', objects: [
{
_guid: 'browser', objects: [
{ _guid: 'browser-context', objects: [] }
]
},
]
},
{ _guid: 'electron', objects: [] },
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{ _guid: 'Playwright', objects: [] },
{ _guid: 'selectors', objects: [] },
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]
});
await browser.close();
await expectScopeState(browserType, GOLDEN_PRECONDITION);
});
it('should work with the domain module', async ({ browserType, browserOptions, server, isFirefox }) => {
const local = domain.create();
local.run(() => { });
let err;
local.on('error', e => err = e);
const browser = await browserType.launch(browserOptions);
const page = await browser.newPage();
expect(await page.evaluate(() => 1 + 1)).toBe(2);
// At the time of writing, we used to emit 'error' event for WebSockets,
// which failed with 'domain' module.
let callback;
const result = new Promise(f => callback = f);
page.on('websocket', ws => ws.on('socketerror', callback));
page.evaluate(port => {
new WebSocket('ws://localhost:' + port + '/bogus-ws');
}, server.PORT);
const message = await result;
if (isFirefox)
expect(message).toBe('CLOSE_ABNORMAL');
else
expect(message).toContain(': 400');
await browser.close();
if (err)
throw err;
});
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async function expectScopeState(object, golden) {
golden = trimGuids(golden);
const remoteState = trimGuids(await object._channel.debugScopeState());
const localState = trimGuids(object._connection._debugScopeState());
expect(localState).toEqual(golden);
expect(remoteState).toEqual(golden);
}
function compareObjects(a, b) {
if (a._guid !== b._guid)
return a._guid.localeCompare(b._guid);
return a.objects.length - b.objects.length;
}
function trimGuids(object) {
if (Array.isArray(object))
return object.map(trimGuids).sort(compareObjects);
if (typeof object === 'object') {
const result = {};
for (const key in object)
result[key] = trimGuids(object[key]);
return result;
}
if (typeof object === 'string')
return object ? object.match(/[^@]+/)[0] : '';
return object;
}