Cover more test/widgets tests with leak tracking #9 (flutter#135054)

Author: ksokolovskyi

packages/flutter/test/widgets/selection_container_test.dart

@@ -5,6 +5,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 void main() {
 
@@ -20,9 +21,11 @@ void main() {
     );
   }
 
-  testWidgets('updates its registrar and delegate based on the number of selectables', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('updates its registrar and delegate based on the number of selectables', (WidgetTester tester) async {
     final TestSelectionRegistrar registrar = TestSelectionRegistrar();
     final TestContainerDelegate delegate = TestContainerDelegate();
+    addTearDown(delegate.dispose);
+
     await pumpContainer(
       tester,
       SelectionContainer(
@@ -42,9 +45,11 @@ void main() {
     expect(delegate.selectables.length, 3);
   });
 
-  testWidgets('disabled container', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('disabled container', (WidgetTester tester) async {
     final TestSelectionRegistrar registrar = TestSelectionRegistrar();
     final TestContainerDelegate delegate = TestContainerDelegate();
+    addTearDown(delegate.dispose);
+
     await pumpContainer(
       tester,
       SelectionContainer(
@@ -65,10 +70,13 @@ void main() {
     expect(delegate.selectables.length, 0);
   });
 
-  testWidgets('Swapping out container delegate does not crash', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Swapping out container delegate does not crash', (WidgetTester tester) async {
     final TestSelectionRegistrar registrar = TestSelectionRegistrar();
     final TestContainerDelegate delegate = TestContainerDelegate();
+    addTearDown(delegate.dispose);
     final TestContainerDelegate childDelegate = TestContainerDelegate();
+    addTearDown(childDelegate.dispose);
+
     await pumpContainer(
       tester,
       SelectionContainer(
@@ -90,6 +98,8 @@ void main() {
     expect(delegate.value.hasContent, isTrue);
 
     final TestContainerDelegate newDelegate = TestContainerDelegate();
+    addTearDown(newDelegate.dispose);
+
     await pumpContainer(
       tester,
       SelectionContainer(
@@ -112,10 +122,13 @@ void main() {
     expect(tester.takeException(), isNull);
   });
 
-  testWidgets('Can update within one frame', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Can update within one frame', (WidgetTester tester) async {
     final TestSelectionRegistrar registrar = TestSelectionRegistrar();
     final TestContainerDelegate delegate = TestContainerDelegate();
+    addTearDown(delegate.dispose);
     final TestContainerDelegate childDelegate = TestContainerDelegate();
+    addTearDown(childDelegate.dispose);
+
     await pumpContainer(
       tester,
       SelectionContainer(
@@ -139,9 +152,11 @@ void main() {
     expect(delegate.value.hasContent, isTrue);
   });
 
-  testWidgets('selection container registers itself if there is a selectable child', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('selection container registers itself if there is a selectable child', (WidgetTester tester) async {
     final TestSelectionRegistrar registrar = TestSelectionRegistrar();
     final TestContainerDelegate delegate = TestContainerDelegate();
+    addTearDown(delegate.dispose);
+
     await pumpContainer(
       tester,
       SelectionContainer(
@@ -181,9 +196,10 @@ void main() {
     expect(registrar.selectables.length, 0);
   });
 
-  testWidgets('selection container gets registrar from context if not provided', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('selection container gets registrar from context if not provided', (WidgetTester tester) async {
     final TestSelectionRegistrar registrar = TestSelectionRegistrar();
     final TestContainerDelegate delegate = TestContainerDelegate();
+    addTearDown(delegate.dispose);
 
     await pumpContainer(
       tester,

packages/flutter/test/widgets/semantics_10_test.dart

@@ -6,11 +6,12 @@ import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('can cease to be semantics boundary after markNeedsSemanticsUpdate() has already been called once', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('can cease to be semantics boundary after markNeedsSemanticsUpdate() has already been called once', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     await tester.pumpWidget(

packages/flutter/test/widgets/semantics_11_test.dart

@@ -6,11 +6,12 @@ import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('markNeedsSemanticsUpdate() called on non-boundary with non-boundary parent', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('markNeedsSemanticsUpdate() called on non-boundary with non-boundary parent', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     await tester.pumpWidget(

packages/flutter/test/widgets/semantics_1_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('Semantics 1', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Semantics 1', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     // smoketest

packages/flutter/test/widgets/semantics_2_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('Semantics 2', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Semantics 2', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     // this test is the same as the test in Semantics 1, but

packages/flutter/test/widgets/semantics_3_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('Semantics 3', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Semantics 3', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     // implicit annotators

packages/flutter/test/widgets/semantics_4_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('Semantics 4', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Semantics 4', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     //    O

packages/flutter/test/widgets/semantics_5_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('Semantics 5', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Semantics 5', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     await tester.pumpWidget(

packages/flutter/test/widgets/semantics_6_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('can change semantics in a branch blocked by BlockSemantics', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('can change semantics in a branch blocked by BlockSemantics', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     final TestSemantics expectedSemantics = TestSemantics.root(

packages/flutter/test/widgets/semantics_7_test.dart

@@ -5,11 +5,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
-  testWidgets('Semantics 7 - Merging', (WidgetTester tester) async {
+  testWidgetsWithLeakTracking('Semantics 7 - Merging', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
 
     String label;