Plumbing flags required for running tests with the DDC module system.

dwds/CHANGELOG.md

@@ -3,6 +3,7 @@
 - Add `FrontendServerLegacyStrategyProvider` and update bootstrap generation logic for `LegacyStrategy` - [#2285](https://github.com/dart-lang/webdev/pull/2285)
 - Tolerate failures to detect a dart execution context. - [#2286](https://github.com/dart-lang/webdev/pull/2286)
 - Fix a null cast error when debugging a `Class` from VS Code. - [#2303](https://github.com/dart-lang/webdev/pull/2303)
+- Enabling tests that run with the DDC module system and exposing `utilities/ddc_names.dart` - [#2295](https://github.com/dart-lang/webdev/pull/2295)
 
 ## 22.1.0
 - Update `package:vm_service` constraint to `^13.0.0`. - [#2265](https://github.com/dart-lang/webdev/pull/2265)

dwds/lib/expression_compiler.dart

@@ -7,4 +7,5 @@ export 'src/services/expression_compiler.dart'
         ExpressionCompilationResult,
         ExpressionCompiler,
         CompilerOptions,
+        ModuleFormat,
         ModuleInfo;

dwds/lib/src/loaders/legacy.dart

@@ -181,7 +181,11 @@ class LegacyStrategy extends LoadStrategy {
     return '''
 $_baseUrlScript
 var scripts = ${const JsonEncoder.withIndent(" ").convert(scripts)};
-window.\$dartLoader.loadScripts(scripts);
+window.\$dartLoader.loadConfig.loadScriptFn = function(loader) {
+  loader.addScriptsToQueue(scripts, null);
+  loader.loadEnqueuedModules();
+};
+window.\$dartLoader.loader.nextAttempt();
 ''';
   }
 

dwds/lib/src/services/chrome_proxy_service.dart

@@ -187,7 +187,7 @@ class ChromeProxyService implements VmServiceInterface {
         'with sound null safety: $soundNullSafety');
 
     final compilerOptions = CompilerOptions(
-      moduleFormat: moduleFormat,
+      moduleFormat: ModuleFormat.values.byName(moduleFormat),
       soundNullSafety: soundNullSafety,
       canaryFeatures: canaryFeatures,
       experiments: experiments,

dwds/lib/src/services/expression_compiler.dart

@@ -4,7 +4,7 @@
 
 /// Options passed to DDC and the expression compiler.
 class CompilerOptions {
-  final String moduleFormat;
+  final ModuleFormat moduleFormat;
   final bool soundNullSafety;
   final bool canaryFeatures;
   final List<String> experiments;
@@ -17,6 +17,9 @@ class CompilerOptions {
   });
 }
 
+/// Indicates the module system DDC is targeting.
+enum ModuleFormat { amd, ddc, es6 }
+
 /// Result of compilation of dart expression to JavaScript
 class ExpressionCompilationResult {
   final bool isError;

dwds/lib/src/services/expression_compiler_service.dart

@@ -89,7 +89,7 @@ class _Compiler {
       '--asset-server-port',
       '$port',
       '--module-format',
-      compilerOptions.moduleFormat,
+      compilerOptions.moduleFormat.name,
       if (verbose) '--verbose',
       compilerOptions.soundNullSafety
           ? '--sound-null-safety'

dwds/lib/utilities.dart

@@ -0,0 +1,5 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+export 'src/utilities/ddc_names.dart';

dwds/test/devtools_test.dart

@@ -32,110 +32,115 @@ void main() {
 
   final context = TestContext(TestProject.testWithSoundNullSafety, provider);
 
-  group('Injected client', () {
-    setUp(() async {
-      await context.setUp(
-        debugSettings: TestDebugSettings.withDevTools(context),
-      );
-      await context.webDriver.driver.keyboard.sendChord([Keyboard.alt, 'd']);
-      // Wait for DevTools to actually open.
-      await Future.delayed(const Duration(seconds: 2));
-    });
-
-    tearDown(() async {
-      await context.tearDown();
-    });
-
-    test(
-      'can launch devtools',
-      () async {
-        final windows = await context.webDriver.windows.toList();
-        await context.webDriver.driver.switchTo.window(windows.last);
-        expect(await context.webDriver.pageSource, contains('DevTools'));
-        expect(await context.webDriver.currentUrl, contains('ide=Dwds'));
-        // TODO(https://github.com/dart-lang/webdev/issues/1888): Re-enable.
-      },
-      skip: Platform.isWindows,
-    );
-
-    test('can not launch devtools for the same app in multiple tabs', () async {
-      final appUrl = await context.webDriver.currentUrl;
-      // Open a new tab, select it, and navigate to the app
-      await context.webDriver.driver
-          .execute("window.open('$appUrl', '_blank');", []);
-      await Future.delayed(const Duration(seconds: 2));
-      final newAppWindow = await context.webDriver.windows.last;
-      await newAppWindow.setAsActive();
+  group(
+    'Injected client',
+    () {
+      setUp(() async {
+        await context.setUp(
+          debugSettings: TestDebugSettings.withDevTools(context),
+        );
+        await context.webDriver.driver.keyboard.sendChord([Keyboard.alt, 'd']);
+        // Wait for DevTools to actually open.
+        await Future.delayed(const Duration(seconds: 2));
+      });
 
-      // Wait for the page to be ready before trying to open DevTools again.
-      await _waitForPageReady(context);
+      tearDown(() async {
+        await context.tearDown();
+      });
 
-      // Try to open devtools and check for the alert.
-      await context.webDriver.driver.keyboard.sendChord([Keyboard.alt, 'd']);
-      await Future.delayed(const Duration(seconds: 2));
-      final alert = context.webDriver.driver.switchTo.alert;
-      expect(alert, isNotNull);
-      expect(
-        await alert.text,
-        contains('This app is already being debugged in a different tab'),
+      test(
+        'can launch devtools',
+        () async {
+          final windows = await context.webDriver.windows.toList();
+          await context.webDriver.driver.switchTo.window(windows.last);
+          expect(await context.webDriver.pageSource, contains('DevTools'));
+          expect(await context.webDriver.currentUrl, contains('ide=Dwds'));
+          // TODO(https://github.com/dart-lang/webdev/issues/1888): Re-enable.
+        },
+        skip: Platform.isWindows,
       );
-      await alert.accept();
 
-      var windows = await context.webDriver.windows.toList();
-      for (final window in windows) {
-        if (window.id != newAppWindow.id) {
-          await window.setAsActive();
-          await window.close();
-        }
-      }
+      test('can not launch devtools for the same app in multiple tabs',
+          () async {
+        final appUrl = await context.webDriver.currentUrl;
+        // Open a new tab, select it, and navigate to the app
+        await context.webDriver.driver
+            .execute("window.open('$appUrl', '_blank');", []);
+        await Future.delayed(const Duration(seconds: 2));
+        final newAppWindow = await context.webDriver.windows.last;
+        await newAppWindow.setAsActive();
 
-      await newAppWindow.setAsActive();
-      await context.webDriver.driver.keyboard.sendChord([Keyboard.alt, 'd']);
-      await Future.delayed(const Duration(seconds: 2));
-      windows = await context.webDriver.windows.toList();
-      final devToolsWindow =
-          windows.firstWhere((window) => window != newAppWindow);
-      await devToolsWindow.setAsActive();
-      expect(await context.webDriver.pageSource, contains('DevTools'));
-    });
+        // Wait for the page to be ready before trying to open DevTools again.
+        await _waitForPageReady(context);
 
-    test(
-      'destroys and recreates the isolate during a page refresh',
-      () async {
-        // This test is the same as one in reload_test, but runs here when there
-        // is a connected client (DevTools) since it can behave differently.
-        // https://github.com/dart-lang/webdev/pull/901#issuecomment-586438132
-        final client = context.debugConnection.vmService;
-        await client.streamListen('Isolate');
-        context.makeEditToDartEntryFile(
-          toReplace: 'Hello World!',
-          replaceWith: 'Bonjour le monde!',
-        );
-        await context.waitForSuccessfulBuild(propagateToBrowser: true);
-
-        final eventsDone = expectLater(
-          client.onIsolateEvent,
-          emitsThrough(
-            emitsInOrder([
-              _hasKind(EventKind.kIsolateExit),
-              _hasKind(EventKind.kIsolateStart),
-              _hasKind(EventKind.kIsolateRunnable),
-            ]),
-          ),
+        // Try to open devtools and check for the alert.
+        await context.webDriver.driver.keyboard.sendChord([Keyboard.alt, 'd']);
+        await Future.delayed(const Duration(seconds: 2));
+        final alert = context.webDriver.driver.switchTo.alert;
+        expect(alert, isNotNull);
+        expect(
+          await alert.text,
+          contains('This app is already being debugged in a different tab'),
         );
+        await alert.accept();
 
-        await context.webDriver.driver.refresh();
+        var windows = await context.webDriver.windows.toList();
+        for (final window in windows) {
+          if (window.id != newAppWindow.id) {
+            await window.setAsActive();
+            await window.close();
+          }
+        }
 
-        await eventsDone;
-        // Re-set the edited file:
-        context.makeEditToDartEntryFile(
-          toReplace: 'Bonjour le monde!',
-          replaceWith: 'Hello World!',
-        );
-      },
-      skip: 'https://github.com/dart-lang/webdev/issues/1888',
-    );
-  });
+        await newAppWindow.setAsActive();
+        await context.webDriver.driver.keyboard.sendChord([Keyboard.alt, 'd']);
+        await Future.delayed(const Duration(seconds: 2));
+        windows = await context.webDriver.windows.toList();
+        final devToolsWindow =
+            windows.firstWhere((window) => window != newAppWindow);
+        await devToolsWindow.setAsActive();
+        expect(await context.webDriver.pageSource, contains('DevTools'));
+      });
+
+      test(
+        'destroys and recreates the isolate during a page refresh',
+        () async {
+          // This test is the same as one in reload_test, but runs here when there
+          // is a connected client (DevTools) since it can behave differently.
+          // https://github.com/dart-lang/webdev/pull/901#issuecomment-586438132
+          final client = context.debugConnection.vmService;
+          await client.streamListen('Isolate');
+          context.makeEditToDartEntryFile(
+            toReplace: 'Hello World!',
+            replaceWith: 'Bonjour le monde!',
+          );
+          await context.waitForSuccessfulBuild(propagateToBrowser: true);
+
+          final eventsDone = expectLater(
+            client.onIsolateEvent,
+            emitsThrough(
+              emitsInOrder([
+                _hasKind(EventKind.kIsolateExit),
+                _hasKind(EventKind.kIsolateStart),
+                _hasKind(EventKind.kIsolateRunnable),
+              ]),
+            ),
+          );
+
+          await context.webDriver.driver.refresh();
+
+          await eventsDone;
+          // Re-set the edited file:
+          context.makeEditToDartEntryFile(
+            toReplace: 'Bonjour le monde!',
+            replaceWith: 'Hello World!',
+          );
+        },
+        skip: 'https://github.com/dart-lang/webdev/issues/1888',
+      );
+    },
+    timeout: Timeout.factor(2),
+  );
 
   group('Injected client without a DevTools server', () {
     setUp(() async {
@@ -193,6 +198,7 @@ void main() {
     },
     tags: ['extension'],
     skip: 'https://github.com/dart-lang/webdev/issues/2114',
+    timeout: Timeout.factor(2),
   );
 }
 

dwds/test/evaluate_common.dart

@@ -71,6 +71,7 @@ void testAll({
         await context.setUp(
           testSettings: TestSettings(
             compilationMode: compilationMode,
+            moduleFormat: provider.ddcModuleFormat,
             enableExpressionEvaluation: true,
             useDebuggerModuleNames: useDebuggerModuleNames,
             verboseCompiler: debug,
@@ -821,6 +822,7 @@ void testAll({
       await context.setUp(
         testSettings: TestSettings(
           compilationMode: compilationMode,
+          moduleFormat: provider.ddcModuleFormat,
           enableExpressionEvaluation: false,
           verboseCompiler: debug,
         ),

dwds/test/expression_compiler_service_test.dart

@@ -80,7 +80,7 @@ void main() async {
       );
 
       final compilerOptions = CompilerOptions(
-        moduleFormat: 'amd',
+        moduleFormat: ModuleFormat.amd,
         soundNullSafety: true,
         canaryFeatures: false,
         experiments: const <String>[],