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chore: allow reusing browser between the tests #22191

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Merged
merged 1 commit into from
Apr 4, 2023
Merged

chore: allow reusing browser between the tests #22191

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1 change: 1 addition & 0 deletions packages/playwright-core/src/remote/playwrightConnection.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -282,4 +282,5 @@ const defaultLaunchOptions: LaunchOptions = {

const optionsThatAllowBrowserReuse: (keyof LaunchOptions)[] = [
'headless',
'tracesDir',
];
63 changes: 63 additions & 0 deletions tests/playwright-test/playwright.reuse.browser.spec.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,63 @@
/**
* 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 { test as baseTest, expect } from './playwright-test-fixtures';
import { RunServer } from '../config/remoteServer';
import type { PlaywrightServer } from '../config/remoteServer';

const test = baseTest.extend<{ runServer: () => Promise<PlaywrightServer> }>({
runServer: async ({ childProcess }, use) => {
let server: PlaywrightServer | undefined;
await use(async () => {
const runServer = new RunServer();
await runServer._start(childProcess);
server = runServer;
return server;
});
if (server) {
await server.close();
// Give any connected browsers a chance to disconnect to avoid
// poisoning next test with quasy-alive browsers.
await new Promise(f => setTimeout(f, 1000));
}
},
});

test('should reuse browser', async ({ runInlineTest, runServer }) => {
const server = await runServer();
const result = await runInlineTest({
'src/a.test.ts': `
import { test, expect } from '@playwright/test';
test('a', async ({ browser }) => {
console.log('%%' + process.env.TEST_WORKER_INDEX + ':' + browser._guid);
});
`,
'src/b.test.ts': `
import { test, expect } from '@playwright/test';
test('b', async ({ browser }) => {
console.log('%%' + process.env.TEST_WORKER_INDEX + ':' + browser._guid);
});
`,
}, { workers: 2 }, { PW_TEST_REUSE_CONTEXT: '1', PW_TEST_CONNECT_WS_ENDPOINT: server.wsEndpoint() });

expect(result.exitCode).toBe(0);
expect(result.passed).toBe(2);
expect(result.outputLines).toHaveLength(2);
const [workerIndex1, guid1] = result.outputLines[0].split(':');
const [workerIndex2, guid2] = result.outputLines[1].split(':');
expect(guid2).toBe(guid1);
expect(workerIndex2).not.toBe(workerIndex1);
});