playwright/tests/playwright-test/playwright.ct-dev-server.spec.ts

/**
 * 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, expect, playwrightCtConfigText } from './playwright-test-fixtures';

test.describe.configure({ mode: 'parallel' });

test('should run dev-server and use it for tests', async ({ writeFiles, runInlineTest, startCLICommand }) => {
  await writeFiles({
    'playwright.config.ts': playwrightCtConfigText,
    'playwright/index.html': `<script type="module" src="./index.ts"></script>`,
    'playwright/index.ts': ``,
    'src/button.tsx': `
      export const Button = () => <button>Button</button>;
    `,
    'src/button.test.tsx': `
      import { test, expect } from '@playwright/experimental-ct-react';
      import { Button } from './button';

      test('pass', async ({ mount }) => {
        const component = await mount(<Button></Button>);
        await expect(component).toHaveText('Button', { timeout: 1 });
      });
    `,
  });

  const devServerProcess = await startCLICommand({}, 'dev-server');
  await devServerProcess.waitForOutput('Dev Server listening on');

  const result = await runInlineTest({}, { workers: 1 });
  expect(result.exitCode).toBe(0);
  expect(result.passed).toBe(1);
  expect(result.output).toContain('Dev Server is already running at');

  await devServerProcess.kill();
});