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8412d973c0
Closes https://github.com/microsoft/playwright/issues/22211 Currently, when the server notifies the UI about changed files, the UI determines what files to re-run based on an old test list. By listing tests before that, we make sure that the test list is up-to-date, and that added tests are included in the next run. I've also removed the `listChanged` event as discussed in the team sync. The event isn't used anywhere and fires in exactly the same cases where `testFilesChanged` fired, so i've folded them into one another. This allowed simplifying `Watcher`.
97 lines
3.4 KiB
TypeScript
97 lines
3.4 KiB
TypeScript
/**
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* Copyright (c) Microsoft Corporation.
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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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import { test as baseTest, expect } from './ui-mode-fixtures';
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import { TestServerConnection } from '../../packages/playwright/lib/isomorphic/testServerConnection';
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class TestServerConnectionUnderTest extends TestServerConnection {
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events: [string, any][] = [];
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constructor(wsUrl: string) {
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super(wsUrl);
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this.onTestFilesChanged(params => this.events.push(['testFilesChanged', params]));
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this.onStdio(params => this.events.push(['stdio', params]));
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this.onLoadTraceRequested(params => this.events.push(['loadTraceRequested', params]));
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}
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}
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const test = baseTest.extend<{ testServerConnection: TestServerConnectionUnderTest }>({
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testServerConnection: async ({ startCLICommand }, use, testInfo) => {
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testInfo.skip(!globalThis.WebSocket, 'WebSocket not available prior to Node 22.4.0');
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const testServerProcess = await startCLICommand({}, 'test-server');
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await testServerProcess.waitForOutput('Listening on');
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const line = testServerProcess.output.split('\n').find(l => l.includes('Listening on'));
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const wsEndpoint = line!.split(' ')[2];
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await use(new TestServerConnectionUnderTest(wsEndpoint));
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await testServerProcess.kill();
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}
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});
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test('file watching', async ({ testServerConnection, writeFiles }, testInfo) => {
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await writeFiles({
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'utils.ts': `
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export const expected = 42;
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`,
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'a.test.ts': `
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import { test } from '@playwright/test';
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import { expected } from "./utils";
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test('foo', () => {
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expect(123).toBe(expected);
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});
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`,
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});
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const tests = await testServerConnection.listTests({});
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expect(tests.report.map(e => e.method)).toEqual(['onConfigure', 'onProject', 'onBegin', 'onEnd']);
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await testServerConnection.watch({ fileNames: [testInfo.outputPath('a.test.ts')] });
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await writeFiles({
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'utils.ts': `
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export const expected = 123;
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`,
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});
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await expect.poll(() => testServerConnection.events).toHaveLength(1);
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expect(testServerConnection.events).toEqual([
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['testFilesChanged', { testFiles: [testInfo.outputPath('a.test.ts')] }]
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]);
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});
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test('stdio interception', async ({ testServerConnection, writeFiles }) => {
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await testServerConnection.initialize({ interceptStdio: true });
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await writeFiles({
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'a.test.ts': `
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import { test, expect } from '@playwright/test';
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test('foo', () => {
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console.log("this goes to stdout");
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console.error("this goes to stderr");
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expect(true).toBe(true);
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});
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`,
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});
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const tests = await testServerConnection.runTests({ trace: 'on' });
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expect(tests).toEqual({ status: 'passed' });
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await expect.poll(() => testServerConnection.events).toEqual(expect.arrayContaining([
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['stdio', { type: 'stderr', text: 'this goes to stderr\n' }],
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['stdio', { type: 'stdout', text: 'this goes to stdout\n' }]
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]));
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}); |