chore: allow passing path to config to the test server (#30068)

packages/playwright/src/program.ts

@@ -108,6 +108,7 @@ function addFindRelatedTestFilesCommand(program: Command) {
 function addTestServerCommand(program: Command) {
   const command = program.command('test-server', { hidden: true });
   command.description('start test server');
+  command.option('-c, --config <file>', `Configuration file, or a test directory with optional "playwright.config.{m,c}?{js,ts}"`);
   command.option('--host <host>', 'Host to start the server on', 'localhost');
   command.option('--port <port>', 'Port to start the server on', '0');
   command.action(opts => runTestServer(opts));

packages/playwright/src/runner/testServer.ts

@@ -24,7 +24,7 @@ import { collectAffectedTestFiles, dependenciesForTestFile } from '../transform/
 import type { FullConfigInternal } from '../common/config';
 import { InternalReporter } from '../reporters/internalReporter';
 import { createReporterForTestServer, createReporters } from './reporters';
-import { TestRun, createTaskRunnerForList, createTaskRunnerForWatch, createTaskRunnerForWatchSetup } from './tasks';
+import { TestRun, createTaskRunnerForList, createTaskRunnerForTestServer, createTaskRunnerForWatchSetup } from './tasks';
 import { open } from 'playwright-core/lib/utilsBundle';
 import ListReporter from '../reporters/list';
 import { Multiplexer } from '../reporters/multiplexer';
@@ -97,7 +97,7 @@ class TestServerDispatcher implements TestServerInterface {
     this._configFile = configFile;
     this.transport = {
       dispatch: (method, params) => (this as any)[method](params),
-      onclose: () => {},
+      onclose: () => gracefullyProcessExitDoNotHang(0),
     };
     this._globalWatcher = new Watcher('deep', () => this._dispatchEvent('listChanged', {}));
     this._testWatcher = new Watcher('flat', events => {
@@ -238,7 +238,7 @@ class TestServerDispatcher implements TestServerInterface {
       timeout: params.timeout,
       reporter: params.reporters ? params.reporters.map(r => [r]) : undefined,
       use: {
-        trace: params.trace === 'on' ? { mode: 'on', sources: false, _live: true } : undefined,
+        trace: params.trace === 'on' ? { mode: 'on', sources: false, _live: true } : (params.trace === 'off' ? 'off' : undefined),
         headless: params.headed ? false : undefined,
         _optionContextReuseMode: params.reuseContext ? 'when-possible' : undefined,
         _optionConnectOptions: params.connectWsEndpoint ? { wsEndpoint: params.connectWsEndpoint } : undefined,
@@ -263,7 +263,7 @@ class TestServerDispatcher implements TestServerInterface {
     const reporters = await createReporters(config, 'test', true);
     reporters.push(await createReporterForTestServer(config, 'test', params.serializer || require.resolve('./uiModeReporter'), e => this._dispatchEvent('report', e)));
     const reporter = new InternalReporter(new Multiplexer(reporters));
-    const taskRunner = createTaskRunnerForWatch(config, reporter);
+    const taskRunner = createTaskRunnerForTestServer(config, reporter);
     const testRun = new TestRun(config, reporter);
     reporter.onConfigure(config.config);
     const stop = new ManualPromise();

tests/playwright-test/ui-mode-test-setup.spec.ts

@@ -50,8 +50,10 @@ test('should run global setup and teardown', async ({ runUITest }) => {
   ]);
 });
 
-test('should teardown on sigint', async ({ runUITest }) => {
+test('should teardown on sigint', async ({ runUITest, nodeVersion }) => {
   test.skip(process.platform === 'win32', 'No sending SIGINT on Windows');
+  test.skip(nodeVersion.major < 18);
+
   const { page, testProcess } = await runUITest({
     'playwright.config.ts': `
       import { defineConfig } from '@playwright/test';
@@ -201,8 +203,9 @@ test('should run part of the setup only', async ({ runUITest }) => {
 
 for (const useWeb of [true, false]) {
   test.describe(`web-mode: ${useWeb}`, () => {
-    test('should run teardown with SIGINT', async ({ runUITest }) => {
+    test('should run teardown with SIGINT', async ({ runUITest, nodeVersion }) => {
       test.skip(process.platform === 'win32', 'No sending SIGINT on Windows');
+      test.skip(nodeVersion.major < 18);
       const { page, testProcess } = await runUITest({
         'playwright.config.ts': `
           import { defineConfig } from '@playwright/test';