diff --git a/dev/a11y_assessments/lib/use_cases/text_button.dart b/dev/a11y_assessments/lib/use_cases/text_button.dart
index ee83bf989f..4932d53d2f 100644
--- a/dev/a11y_assessments/lib/use_cases/text_button.dart
+++ b/dev/a11y_assessments/lib/use_cases/text_button.dart
@@ -26,7 +26,7 @@ class MainWidget extends StatefulWidget {
 }
 
 class MainWidgetState extends State<MainWidget> {
-  double currentSliderValue = 20;
+  int _count = 0;
 
   @override
   Widget build(BuildContext context) {
@@ -39,25 +39,32 @@ class MainWidgetState extends State<MainWidget> {
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: <Widget>[
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                const Text('This is a TextButton:'),
-                TextButton(
-                  onPressed: () {  },
-                  child: const Text('Action'),
-                ),
-              ],
+            MergeSemantics(
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: <Widget>[
+                  const Text('This is a TextButton:'),
+                  TextButton(
+                    onPressed: () {
+                      setState(() { _count++; });
+                    },
+                    child: const Text('Action'),
+                  ),
+                  Text('Clicked $_count time(s).'),
+                ],
+              ),
             ),
-            const Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                Text('This is a disabled TextButton:'),
-                TextButton(
-                  onPressed: null,
-                  child: Text('Action'),
-                ),
-              ],
+            const MergeSemantics(
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: <Widget>[
+                  Text('This is a disabled TextButton:'),
+                  TextButton(
+                    onPressed: null,
+                    child: Text('Action Disabled'),
+                  ),
+                ],
+              ),
             ),
           ],
         ),
diff --git a/dev/a11y_assessments/test/text_button_test.dart b/dev/a11y_assessments/test/text_button_test.dart
index e3cbd1e9ae..46f0444595 100644
--- a/dev/a11y_assessments/test/text_button_test.dart
+++ b/dev/a11y_assessments/test/text_button_test.dart
@@ -10,6 +10,20 @@ import 'test_utils.dart';
 void main() {
   testWidgets('text button can run', (WidgetTester tester) async {
     await pumpsUseCase(tester, TextButtonUseCase());
-    expect(find.text('Action'), findsExactly(2));
+    expect(find.text('Action'), findsOneWidget);
+    expect(find.text('Action Disabled'), findsOneWidget);
+  });
+
+  testWidgets('text button increments correctly when clicked', (WidgetTester tester) async {
+    await pumpsUseCase(tester, TextButtonUseCase());
+
+    expect(find.text('Action'), findsOneWidget);
+    await tester.tap(find.text('Action'));
+    await tester.pumpAndSettle();
+    expect(find.text('Clicked 1 time(s).'), findsOneWidget);
+
+    await tester.tap(find.text('Action'));
+    await tester.pumpAndSettle();
+    expect(find.text('Clicked 2 time(s).'), findsOneWidget);
   });
 }