home_act_test.dart

void main() {
  group('Home widget Test -', () {
    testWidgets("Testing home Widgets", (tester) async {
      //we call our helper function to return a materal app.
      await tester.pumpWidget(createHomeScreen());
      //We find a widget of type of TextFormField and according to our 
      //UI we expect to have 2 of that type.
      //If less or more are found, the test fails
      expect(find.byType(TextFormField), findsNWidgets(2));
      expect(find.byType(TextButton), findsOneWidget);
      expect(find.byType(IconButton), findsOneWidget);
      expect(find.byType(Form), findsOneWidget);
      expect(find.byIcon(Icons.favorite_border_outlined), findsOneWidget);
    });
    testWidgets('Testing Navigation To Favorites Page', (tester) async {
      await tester.pumpWidget(createHomeScreen());
      //we tell the tester to tap the icon button it finds
      await tester.tap(find.byType(IconButton));
      //so that the state of the app can be updated
      await tester.pumpAndSettle();
      //we confirm that our screen navigated to the expected onr
      expect(find.byType(FavoritesPage), findsOneWidget);
    });
  });

  group('Home Add Note Tests', () {
    testWidgets("Empty Inputs on Text Fields", (tester) async {
      await tester.pumpWidget(createHomeScreen());
      await tester.tap(find.byType(TextButton));
      await tester.pumpAndSettle(const Duration(seconds: 2));
      expect(
          find.descendant(
              of: find.byType(TextFormField).at(0),
              matching: find.text('Please Enter a Title')),
          findsOneWidget);

      expect(
          find.descendant(
              of: find.byType(TextFormField).at(1),
              matching: find.text('Please Enter a Description')),
          findsOneWidget);
    });

    testWidgets("Check Space Input On Text Fields", (tester) async {
      await tester.pumpWidget(createHomeScreen());
      //we find all text inputs and select the first and second
      //then we instruct the tester to input blank space into the field
      await tester.enterText(find.byType(TextFormField).at(0), '  ');
      await tester.enterText(find.byType(TextFormField).at(1), '  ');
      await tester.tap(find.byType(TextButton));
      await tester.pumpAndSettle();
      expect(find.text('Please Fill All Details'), findsOneWidget);
    });

    testWidgets("Check On Adding Note", (tester) async {
      await tester.pumpWidget(createHomeScreen());
      //we find all text inputs and select the first and second
      //we input text into the fields
      await tester.enterText(
          find.byType(TextFormField).at(0), 'GoodMorning Buddy');
      await tester.enterText(find.byType(TextFormField).at(1), 'Happy Coding');
      await tester.tap(find.byType(TextButton));
      await tester.pumpAndSettle();
      //we check whether the snackbar with the following text is displayed
      expect(find.text('Note Added'), findsOneWidget);

      TextField textField =
          find.byType(TextField).at(0).evaluate().first.widget as TextField;
      //we also confirm the input fields are cleared after input
      expect(textField.controller!.text, '');
    });
  });
}