Integration testing in Flutter - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Flutter integration test package.

Flutter

import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/[1].dart';

Drag options to blanks, or click blank then click option'

Aintegration

Bintegration_test

Ctest_integration

Dintegration_test_flutter

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'flutter_test' instead of 'integration_test'.

Misspelling the package name.

The correct import for Flutter integration testing is 'integration_test'.

2fill in blank

medium

Complete the code to initialize the integration test binding.

Flutter

void main() {
  final binding = [1].ensureInitialized();
}

Drag options to blanks, or click blank then click option'

AIntegrationTestWidgetsFlutterBinding

BFlutterBinding

CTestWidgetsFlutterBinding

DWidgetsFlutterBinding

Attempts:

3 left

💡 Hint

Common Mistakes

Using WidgetsFlutterBinding which is for unit/widget tests.

Forgetting to call ensureInitialized().

IntegrationTestWidgetsFlutterBinding is used to initialize integration testing in Flutter.

3fill in blank

hard

Fix the error in the test function declaration for integration testing.

Flutter

testWidgets('tap on button changes text', (WidgetTester [1]) async {
  // test code
});

Drag options to blanks, or click blank then click option'

Atest

Bcontext

Cwidget

Dtester

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'context' which is not a parameter here.

Using 'widget' or 'test' which are invalid parameter names.

The parameter name for the testWidgets callback is conventionally 'tester'.

4fill in blank

hard

Fill both blanks to pump the app and wait for animations to settle.

Flutter

await [1].pumpWidget(MyApp());
await [2].pumpAndSettle();

Drag options to blanks, or click blank then click option'

Atester

BwidgetTester

CtestController

DappTester

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names for the same tester object.

Forgetting to await asynchronous calls.

The 'tester' object is used to pump widgets and wait for animations in integration tests.

5fill in blank

hard

Fill all three blanks to find a button by key, tap it, and verify text change.

Flutter

final button = find.byKey(const Key('[1]'));
await tester.tap(button);
await tester.[2]();
expect(find.text('[3]'), findsOneWidget);

Drag options to blanks, or click blank then click option'

Aincrement

BpumpAndSettle

CClicked!

Dsubmit

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong key strings that don't match the widget.

Forgetting to wait after tapping before checking text.

Expecting wrong text that doesn't appear after tap.

The button key is 'increment', after tapping we wait with pumpAndSettle, then expect the text 'Clicked!'.