add test to enforce mutable lists

flutter · Aug 12, 2024 · 260e00f · 260e00f
1 parent 4b00343
commit 260e00f
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/...ared_preferences/shared_preferences/example/integration_test/shared_preferences_test.dart b/...ared_preferences/shared_preferences/example/integration_test/shared_preferences_test.dart
@@ -218,6 +218,15 @@ void main() {
         expect(await preferences.getStringList(listKey), testList);
       });
 
+      testWidgets('getStringList returns mutable list', (WidgetTester _) async {
+        final SharedPreferencesAsync preferences = await getPreferences();
+
+        await preferences.setStringList(listKey, testList);
+        final List<String>? list = await preferences.getStringList(listKey);
+        list?.add('value');
+        expect(list?.length, testList.length + 1);
+      });
+
       testWidgets('getAll', (WidgetTester _) async {
         final SharedPreferencesAsync preferences = await getPreferences();
         await Future.wait(<Future<void>>[