cherry-pick(#30226): chore: migrate to the testserver.initialize

packages/playwright-core/src/server/trace/viewer/traceViewer.ts

@@ -222,7 +222,7 @@ class StdinServer implements Transport {
   }
 
   async dispatch(method: string, params: any) {
-    if (method === 'ready') {
+    if (method === 'initialize') {
       if (this._traceUrl)
         this._loadTrace(this._traceUrl);
     }

packages/playwright/src/isomorphic/testServerConnection.ts

@@ -64,10 +64,7 @@ export class TestServerConnection implements TestServerInterface, TestServerInte
     });
     const pingInterval = setInterval(() => this._sendMessage('ping').catch(() => {}), 30000);
     this._connectedPromise = new Promise<void>((f, r) => {
-      this._ws.addEventListener('open', () => {
-        f();
-        this._ws.send(JSON.stringify({ id: -1, method: 'ready' }));
-      });
+      this._ws.addEventListener('open', () => f());
       this._ws.addEventListener('error', r);
     });
     this._ws.addEventListener('close', () => {
@@ -76,10 +73,6 @@ export class TestServerConnection implements TestServerInterface, TestServerInte
     });
   }
 
-  connect() {
-    return this._connectedPromise;
-  }
-
   private async _sendMessage(method: string, params?: any): Promise<any> {
     const logForTest = (globalThis as any).__logForTest;
     logForTest?.({ method, params });
@@ -110,8 +103,8 @@ export class TestServerConnection implements TestServerInterface, TestServerInte
       this._onLoadTraceRequestedEmitter.fire(params);
   }
 
-  async setSerializer(params: { serializer: string; }): Promise<void> {
-    await this._sendMessage('setSerializer', params);
+  async initialize(params: Parameters<TestServerInterface['initialize']>[0]): ReturnType<TestServerInterface['initialize']> {
+    await this._sendMessage('initialize', params);
   }
 
   async ping(params: Parameters<TestServerInterface['ping']>[0]): ReturnType<TestServerInterface['ping']> {
@@ -130,10 +123,6 @@ export class TestServerConnection implements TestServerInterface, TestServerInte
     this._sendMessageNoReply('watch', params);
   }
 
-  async watchTestDir(params: Parameters<TestServerInterface['watchTestDir']>[0]): ReturnType<TestServerInterface['watchTestDir']> {
-    await this._sendMessage('watchTestDir', params);
-  }
-
   async open(params: Parameters<TestServerInterface['open']>[0]): ReturnType<TestServerInterface['open']> {
     await this._sendMessage('open', params);
   }
@@ -190,11 +179,14 @@ export class TestServerConnection implements TestServerInterface, TestServerInte
     this._sendMessageNoReply('stopTests', params);
   }
 
-  async setInterceptStdio(params: Parameters<TestServerInterface['setInterceptStdio']>[0]): ReturnType<TestServerInterface['setInterceptStdio']> {
-    await this._sendMessage('setInterceptStdio', params);
-  }
-
   async closeGracefully(params: Parameters<TestServerInterface['closeGracefully']>[0]): ReturnType<TestServerInterface['closeGracefully']> {
     await this._sendMessage('closeGracefully', params);
   }
+
+  close() {
+    try {
+      this._ws.close();
+    } catch {
+    }
+  }
 }

packages/playwright/src/isomorphic/testServerInterface.ts

@@ -21,16 +21,19 @@ import type { JsonEvent } from './teleReceiver';
 export type ReportEntry = JsonEvent;
 
 export interface TestServerInterface {
-  setSerializer(params: { serializer: string }): Promise<void>;
+  initialize(params: {
+    serializer?: string,
+    closeOnDisconnect?: boolean,
+    interceptStdio?: boolean,
+    watchTestDirs?: boolean,
+  }): Promise<void>;
 
   ping(params: {}): Promise<void>;
 
   watch(params: {
     fileNames: string[];
   }): Promise<void>;
 
-  watchTestDir(params: {}): Promise<void>;
-
   open(params: { location: reporterTypes.Location }): Promise<void>;
 
   resizeTerminal(params: { cols: number, rows: number }): Promise<void>;
@@ -90,8 +93,6 @@ export interface TestServerInterface {
 
   stopTests(params: {}): Promise<void>;
 
-  setInterceptStdio(params: { intercept: boolean }): Promise<void>;
-
   closeGracefully(params: {}): Promise<void>;
 }
 

packages/playwright/src/runner/testServer.ts

@@ -56,7 +56,7 @@ class TestServer {
   }
 
   async stop() {
-    await this._dispatcher?.setInterceptStdio({ intercept: false });
+    await this._dispatcher?._setInterceptStdio(false);
     await this._dispatcher?.runGlobalTeardown();
   }
 }
@@ -72,13 +72,17 @@ class TestServerDispatcher implements TestServerInterface {
   readonly _dispatchEvent: TestServerInterfaceEventEmitters['dispatchEvent'];
   private _plugins: TestRunnerPluginRegistration[] | undefined;
   private _serializer = require.resolve('./uiModeReporter');
-  private _watchTestDir = false;
+  private _watchTestDirs = false;
+  private _closeOnDisconnect = false;
 
   constructor(configFile: string | undefined) {
     this._configFile = configFile;
     this.transport = {
       dispatch: (method, params) => (this as any)[method](params),
-      onclose: () => {},
+      onclose: () => {
+        if (this._closeOnDisconnect)
+          gracefullyProcessExitDoNotHang(0);
+      },
     };
     this._globalWatcher = new Watcher('deep', () => this._dispatchEvent('listChanged', {}));
     this._testWatcher = new Watcher('flat', events => {
@@ -89,10 +93,6 @@ class TestServerDispatcher implements TestServerInterface {
     this._dispatchEvent = (method, params) => this.transport.sendEvent?.(method, params);
   }
 
-  async setSerializer(params: { serializer: string; }): Promise<void> {
-    this._serializer = params.serializer;
-  }
-
   private async _wireReporter(messageSink: (message: any) => void) {
     return await createReporterForTestServer(this._serializer, messageSink);
   }
@@ -104,7 +104,16 @@ class TestServerDispatcher implements TestServerInterface {
     return { reporter, report };
   }
 
-  async ready() {}
+  async initialize(params: Parameters<TestServerInterface['initialize']>[0]): ReturnType<TestServerInterface['initialize']> {
+    if (params.serializer)
+      this._serializer = params.serializer;
+    if (params.closeOnDisconnect)
+      this._closeOnDisconnect = true;
+    if (params.interceptStdio)
+      await this._setInterceptStdio(true);
+    if (params.watchTestDirs)
+      this._watchTestDirs = true;
+  }
 
   async ping() {}
 
@@ -226,7 +235,7 @@ class TestServerDispatcher implements TestServerInterface {
       projectOutputs.add(result.outDir);
     }
 
-    if (this._watchTestDir)
+    if (this._watchTestDirs)
       this._globalWatcher.update([...projectDirs], [...projectOutputs], false);
     return { report, status };
   }
@@ -295,10 +304,6 @@ class TestServerDispatcher implements TestServerInterface {
     return { status: await run };
   }
 
-  async watchTestDir() {
-    this._watchTestDir = true;
-  }
-
   async watch(params: { fileNames: string[]; }) {
     const files = new Set<string>();
     for (const fileName of params.fileNames) {
@@ -321,10 +326,10 @@ class TestServerDispatcher implements TestServerInterface {
     await this._testRun?.run;
   }
 
-  async setInterceptStdio(params: Parameters<TestServerInterface['setInterceptStdio']>[0]): ReturnType<TestServerInterface['setInterceptStdio']> {
+  async _setInterceptStdio(intercept: boolean) {
     if (process.env.PWTEST_DEBUG)
       return;
-    if (params.intercept) {
+    if (intercept) {
       process.stdout.write = (chunk: string | Buffer) => {
         this._dispatchEvent('stdio', chunkToPayload('stdout', chunk));
         return true;

packages/trace-viewer/src/ui/uiModeView.tsx

@@ -172,8 +172,10 @@ export const UIModeView: React.FC<{}> = ({
     setIsLoading(true);
     setWatchedTreeIds({ value: new Set() });
     (async () => {
-      await testServerConnection.setInterceptStdio({ intercept: true });
-      await testServerConnection.watchTestDir({});
+      await testServerConnection.initialize({
+        interceptStdio: true,
+        watchTestDirs: true
+      });
       const { status } = await testServerConnection.runGlobalSetup({});
       if (status !== 'passed')
         return;

packages/trace-viewer/src/ui/workbenchLoader.tsx

@@ -93,6 +93,7 @@ export const WorkbenchLoader: React.FunctionComponent<{
         setDragOver(false);
         setProcessingErrorMessage(null);
       });
+      testServerConnection.initialize({}).catch(() => {});
     } else if (!newTraceURLs.some(url => url.startsWith('blob:'))) {
       // Don't re-use blob file URLs on page load (results in Fetch error)
       setTraceURLs(newTraceURLs);