cherry-pick(#21976): chore(ui): do not print global setup epilogue

Author: pavelfeldman

packages/playwright-test/src/reporters/base.ts

@@ -124,6 +124,8 @@ export class BaseReporter implements Reporter {
   protected generateStartingMessage() {
     const jobs = Math.min(this.config.workers, this.config._internal.maxConcurrentTestGroups);
     const shardDetails = this.config.shard ? `, shard ${this.config.shard.current} of ${this.config.shard.total}` : '';
+    if (!this.totalTestCount)
+      return '';
     return '\n' + colors.dim('Running ') + this.totalTestCount + colors.dim(` test${this.totalTestCount !== 1 ? 's' : ''} using `) + jobs + colors.dim(` worker${jobs !== 1 ? 's' : ''}${shardDetails}`);
   }
 

packages/playwright-test/src/reporters/list.ts

@@ -47,8 +47,11 @@ class ListReporter extends BaseReporter {
 
   override onBegin(config: FullConfig, suite: Suite) {
     super.onBegin(config, suite);
-    console.log(this.generateStartingMessage());
-    console.log();
+    const startingMessage = this.generateStartingMessage();
+    if (startingMessage) {
+      console.log(startingMessage);
+      console.log();
+    }
   }
 
   onTestBegin(test: TestCase, result: TestResult) {

packages/playwright-test/src/runner/uiMode.ts

@@ -28,6 +28,7 @@ import { createTaskRunnerForList, createTaskRunnerForWatch, createTaskRunnerForW
 import { chokidar } from '../utilsBundle';
 import type { FSWatcher } from 'chokidar';
 import { open } from '../utilsBundle';
+import ListReporter from '../reporters/list';
 
 class UIMode {
   private _config: FullConfigInternal;
@@ -66,7 +67,7 @@ class UIMode {
   }
 
   async runGlobalSetup(): Promise<FullResult['status']> {
-    const reporter = await createReporter(this._config, 'run');
+    const reporter = new Multiplexer([new ListReporter()]);
     const taskRunner = createTaskRunnerForWatchSetup(this._config, reporter);
     reporter.onConfigure(this._config);
     const context: TaskRunnerState = {

tests/playwright-test/exit-code.spec.ts

@@ -163,7 +163,6 @@ test('should exit with code 0 with --pass-with-no-tests', async ({ runInlineTest
     `,
   }, undefined, undefined, { additionalArgs: ['--pass-with-no-tests'] });
   expect(result.exitCode).toBe(0);
-  expect(result.output).toContain(`Running 0 tests using 0 workers`);
 });
 
 test('should exit with code 1 when config is not found', async ({ runInlineTest }) => {