[flutter_tool] Usage refactor cleanup (#37186)

packages/flutter_tools/lib/src/doctor.dart

@@ -334,6 +334,15 @@ class GroupedValidator extends DoctorValidator {
 
   final List<DoctorValidator> subValidators;
 
+  List<ValidationResult> _subResults;
+
+  /// Subvalidator results.
+  ///
+  /// To avoid losing information when results are merged, the subresults are
+  /// cached on this field when they are available. The results are in the same
+  /// order as the subvalidator list.
+  List<ValidationResult> get subResults => _subResults;
+
   @override
   String get slowWarning => _currentSlowWarning;
   String _currentSlowWarning = 'Initializing...';
@@ -356,6 +365,7 @@ class GroupedValidator extends DoctorValidator {
 
   ValidationResult _mergeValidationResults(List<ValidationResult> results) {
     assert(results.isNotEmpty, 'Validation results should not be empty');
+    _subResults = results;
     ValidationType mergedType = results[0].type;
     final List<ValidationMessage> mergedMessages = <ValidationMessage>[];
     String statusInfo;

packages/flutter_tools/lib/src/reporting/events.dart

@@ -90,12 +90,27 @@ class HotEvent extends UsageEvent {
 /// An event that reports the result of a [DoctorValidator]
 class DoctorResultEvent extends UsageEvent {
   DoctorResultEvent({
-    @required DoctorValidator validator,
-    @required ValidationResult result
-  }) : super('doctorResult.${validator.runtimeType.toString()}',
+    @required this.validator,
+    @required this.result,
+  }) : super('doctorResult.${validator.runtimeType}',
              result.typeStr);
-  // TODO(zra): Override send() to detect a GroupedValidator and send separate
-  // events for each sub-validator.
+
+  final DoctorValidator validator;
+  final ValidationResult result;
+
+  @override
+  void send() {
+    if (validator is! GroupedValidator) {
+      flutterUsage.sendEvent(category, parameter);
+      return;
+    }
+    final GroupedValidator group = validator;
+    for (int i = 0; i < group.subValidators.length; i++) {
+      final DoctorValidator v = group.subValidators[i];
+      final ValidationResult r = group.subResults[i];
+      DoctorResultEvent(validator: v, result: r).send();
+    }
+  }
 }
 
 /// An event that reports success or failure of a pub get.

packages/flutter_tools/test/general.shard/commands/doctor_test.dart

@@ -276,6 +276,22 @@ void main() {
       Platform: _kNoColorOutputPlatform,
       Usage: () => mockUsage,
     });
+
+    testUsingContext('events for grouped validators are properly decomposed', () async {
+      await FakeGroupedDoctor().diagnose(verbose: false);
+
+      expect(
+        verify(mockUsage.sendEvent('doctorResult.PassingGroupedValidator', captureAny)).captured,
+        <dynamic>['installed', 'installed', 'installed'],
+      );
+      expect(
+        verify(mockUsage.sendEvent('doctorResult.MissingGroupedValidator', captureAny)).captured,
+        <dynamic>['missing'],
+      );
+    }, overrides: <Type, Generator>{
+      Platform: _kNoColorOutputPlatform,
+      Usage: () => mockUsage,
+    });
   });
 
   group('doctor with fake validators', () {

packages/flutter_tools/test/general.shard/resident_runner_test.dart

@@ -52,6 +52,7 @@ void main() {
     // DevFS Mocks
     when(mockDevFS.lastCompiled).thenReturn(DateTime(2000));
     when(mockDevFS.sources).thenReturn(<Uri>[]);
+    when(mockDevFS.baseUri).thenReturn(Uri());
     when(mockDevFS.destroy()).thenAnswer((Invocation invocation) async { });
     when(mockDevFS.assetPathsToEvict).thenReturn(<String>{});
     // FlutterDevice Mocks.
@@ -80,6 +81,7 @@ void main() {
     ]);
     when(mockFlutterDevice.device).thenReturn(mockDevice);
     when(mockFlutterView.uiIsolate).thenReturn(mockIsolate);
+    when(mockFlutterView.runFromSource(any, any, any)).thenAnswer((Invocation invocation) async {});
     when(mockFlutterDevice.stopEchoingDeviceLog()).thenAnswer((Invocation invocation) async { });
     when(mockFlutterDevice.observatoryUris).thenReturn(<Uri>[
       testUri,
@@ -189,9 +191,6 @@ void main() {
     Usage: () => MockUsage(),
   }));
 
-
-  // Need one for hot restart as well.
-
   test('ResidentRunner can send target platform to analytics from hot reload', () => testbed.run(() async {
     when(mockDevice.sdkNameAndVersion).thenAnswer((Invocation invocation) async {
       return 'Example';
@@ -221,6 +220,36 @@ void main() {
     Usage: () => MockUsage(),
   }));
 
+  test('ResidentRunner can send target platform to analytics from full restart', () => testbed.run(() async {
+    when(mockDevice.sdkNameAndVersion).thenAnswer((Invocation invocation) async {
+      return 'Example';
+    });
+    when(mockDevice.targetPlatform).thenAnswer((Invocation invocation) async {
+      return TargetPlatform.android_arm;
+    });
+    when(mockDevice.isLocalEmulator).thenAnswer((Invocation invocation) async {
+      return false;
+    });
+    when(mockDevice.supportsHotRestart).thenReturn(true);
+    final Completer<DebugConnectionInfo> onConnectionInfo = Completer<DebugConnectionInfo>.sync();
+    final Completer<void> onAppStart = Completer<void>.sync();
+    unawaited(residentRunner.attach(
+      appStartedCompleter: onAppStart,
+      connectionInfoCompleter: onConnectionInfo,
+    ));
+
+    final OperationResult result = await residentRunner.restart(fullRestart: true);
+    expect(result.fatal, false);
+    expect(result.code, 0);
+    expect(verify(flutterUsage.sendEvent('hot', 'restart',
+                  parameters: captureAnyNamed('parameters'))).captured[0],
+      containsPair(cdKey(CustomDimensions.hotEventTargetPlatform),
+                   getNameForTargetPlatform(TargetPlatform.android_arm))
+    );
+  }, overrides: <Type, Generator>{
+    Usage: () => MockUsage(),
+  }));
+
   test('ResidentRunner Can handle an RPC exception from hot restart', () => testbed.run(() async {
     when(mockDevice.sdkNameAndVersion).thenAnswer((Invocation invocation) async {
       return 'Example';