Hot reload for Flutter integration test?
Almost.
It is partly possible with the integration_test package.
With the run
command you can at least 🔥Hot Restart - which saves a lot of time when writing the tests.
You are able to make changes to both your project and your test code and have the changes reflected.
From terminal execute:
flutter run integration_test/tests/your_test.dart
You should then be able to Hot Restart (with terminal focused) by pressing SHIFT + r
.
It is also possible to add the test file you want to test to your IDEs run configuration and run or DEBUG it from there like a "normal" project.
Example bogus "your_test.dart" test:
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
void main() {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();
testWidgets('Test test testing', (WidgetTester tester) async {
expect(true, isTrue);
});
}
Comments
-
Christopher over 1 year
I have setted up Flutter Integration Testing on my project as defined here: https://flutter.dev/docs/testing/integration-tests
I used the following devDepencendies:
integration_test: ^1.0.0 flutter_test: sdk: flutter flutter_driver: sdk: flutter
The test driver is just a C&P from project page:
import 'package:integration_test/integration_test_driver.dart'; Future<void> main() => integrationDriver();
The final test:
void main() { IntegrationTestWidgetsFlutterBinding.ensureInitialized(); testWidgets('CPCSA-TC-016: Vehicle Card with no alert', (WidgetTester tester) async { app.main(); // Execute test code. }); }
Finally I run my tests with
flutter drive --driver=test_driver/integration_test.dart --target=integration_test/test.dart
Which is basically fine, but it compiles at every execution and this is very time consuming. Is there a chance that I can run the integration test and have the same hot reload feature as I would have for regular development? How to achieve this?
Or is there any other workaround? I am thinking about writing the test code as unit/widget test first and just port it into integration tests once the execution is correct.