Information:
I have created a sample Flutter unit test to test the login screen where I have email & password as input field and a login button.
Requirement:
Need to test false cases and for that, I have written code as per the below steps.
Open main.dart
Filled the email & password field
onTap event is done on the login button. Over here API will be called and loader is displayed on the screen until API gets a success or failure response.
Need to check if failure dialog is displayed with a message.
Issue/Query:
Now when the API is calling I want to wait when the loader is visible until the loader is gone. So, as of now I just put a manual delay to execute the next code but I want to make it dynamic. So, let me know how we can put dynamic delay based on the loader visible?
Code:
void main() {
group('App Test', () {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();
testWidgets('Login Fail Test', (WidgetTester tester) async {
await app.main();
await tester.pumpAndSettle();
await tester.pump(new Duration(seconds: 2));
final emailField = find.byType(TextFormField).first;
final passwordField = find.byType(TextFormField).last;
final loginButton = find.byType(RaisedButton).first;
await tester.enterText(emailField, 'Test');
await tester.pumpAndSettle();
await tester.pump(new Duration(seconds: 1));
await tester.enterText(passwordField, 'Test123');
await tester.pumpAndSettle();
await tester.pump(new Duration(seconds: 1));
await tester.tap(loginButton);
await tester.pumpAndSettle();
await tester.pump(new Duration(seconds: 3));
final dialog = find.byType(AlertDialog).first;
await tester.element(dialog);
await tester.pumpAndSettle();
await tester.pump(new Duration(seconds: 1));
final dialogButton = find.byType(FlatButton).first;
await tester.tap(dialogButton);
await tester.pumpAndSettle();
await tester.pump(new Duration(seconds: 2));
});
}
I have a file called utils.dart for functionality like this. In this case I use the following function which will basically poll until the finder is valid
// utils.dart
Future<void> pumpUntilFound(
WidgetTester tester,
Finder finder, {
Duration timeout = const Duration(seconds: 10),
}) async {
bool timerDone = false;
final timer = Timer(timeout, () => timerDone = true);
while (timerDone != true) {
await tester.pump();
final found = tester.any(finder);
if (found) {
timerDone = true;
}
}
timer.cancel();
}
You can also make it throw an exception if it times out, but the error messages aren't helpful, so I usually follow it up with an expect
It would look like
// my_test.dart
final fab = find.byKey(const ValueKey('fab'));
await pumpUntilFound(widgetTester, fab);
expect(fab, findsOneWidget);
Try wrapping like this:
testWidgets('test',
(WidgetTester tester) async {
await tester.runAsync(() async {
// test code here
});
});
If you use:
await tester.pumpAndSettle();
And then:
final widget = find.byKey(Key('whatever'));
It will find dinamically
Related
**At the very last bold step please help me with the code every thing is working and at the stage of keyboard it is not working
testWidgets('アカウントをお持ちの方はこちら', (WidgetTester tester) async {
await app.main();
await tester.pumpAndSettle();
await tester.pumpAndSettle(const Duration(seconds: 2));
expect(find.text('アカウントをお持ちの方はこちら'), findsOneWidget);
Finder signinbutton = find.text('アカウントをお持ちの方はこちら');
await tester.tap(signinbutton);
await tester.pumpAndSettle();
expect(find.text('ログイン画面へ'), findsOneWidget);
Finder loginbutton = find.text("ログイン画面へ");
await tester.tap(loginbutton);
await tester.pumpAndSettle();
expect(find.text('携帯電話番号'), findsOneWidget);
Finder mobilenumber = find.text("携帯電話番号");
await tester.tap(mobilenumber);
await tester.pumpAndSettle(const Duration(seconds: 2));
**expect(find.text('携帯電話番号'), findsOneWidget);
Finder textBoxForPhone = find.text('携帯電話番号');
await tester.enterText(textBoxForPhone, '08009090909');
await tester.tap(textBoxForPhone);
await tester.pumpAndSettle();**
});
}
I have a simple login page with email and password text field. A button to login and another to sign up. I tried to write integration testing for the Sign in page.
void main() {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();
testWidgets('''could type email and password in text filed''',
(WidgetTester tester) async {
await app.main();
await tester.pumpAndSettle();
final textFieldEmail = find.byType(InputTextWidget).first;
final textFieldPassword = find.byType(InputTextWidget).last;
await tester.enterText(textFieldEmail, "asis.adh#gmail.com");
await tester.pumpAndSettle();
expect(find.text("asis.adh#gmail.com"), findsOneWidget);
});
testWidgets(
'should redirect to Sign Up Page when create an account is tapped',
(WidgetTester tester) async {
await app.main();
await tester.pumpAndSettle();
final createAnAccount = find.text("Create an account");
await tester.tap(createAnAccount);
await tester.pumpAndSettle();
expect(find.byType(SignupPage), findsOneWidget);
expect(find.byType(LoginPage), findsNothing);
});
}
When I execute the test case, it fails with the following error:
The following ArgumentError was thrown running a test: Invalid
argument(s): Object/factory with type AmenitiesProvider is already
registered inside GetIt.
Here is my main.dart file
Future main() async {
WidgetsFlutterBinding.ensureInitialized();
configureInjection(Environment.prod);
/// for registering the factory.
await Future.delayed(const Duration(seconds: 2));
runApp(RoopaApp());
}
I tried with a main_test.dart and adding configureInjection(Environment.test) but nothing changes. I am not sure how to fix the error. Is there a way to clean the app or destroy it before going to new test case. If I combine the both testcase into one then it works without any problem.
Here is configureInjection
#injectableInit
void configureInjection(String environment) {
$initGetIt(getIt, environment: environment);
}
I am using get_it and injection package for dependency injection.
Here is the auto generated initGetIt
GetIt $initGetIt(
GetIt get, {
String environment,
EnvironmentFilter environmentFilter,
}) {
final gh = GetItHelper(get, environment, environmentFilter);
final httpClientInjectableModule = _$HttpClientInjectableModule();
final flutterStorageModule = _$FlutterStorageModule();
gh.lazySingleton<AmenitiesProvider>(() => AmenitiesProvider());
gh.factory<Client>(() => httpClientInjectableModule.client);
gh.lazySingleton<FileProvider>(() => FileProvider());
gh.lazySingleton<FlutterSecureStorage>(
() => flutterStorageModule.secureStorate);
gh.factory<ProfilePageBloc>(() => ProfilePageBloc());
gh.factory<SplashScreenBloc>(() => SplashScreenBloc());
gh.lazySingleton<AuthLocalDataSourceProtocol>(
() => AuthLocalDataSource(secureStorage: get<FlutterSecureStorage>()));
gh.lazySingleton<AuthRemoteDataSourceProtocol>(
() => AuthRemoteDataSource(client: get<Client>()));
return get;
}
In my config page.
#injectableInit
void configureInjection(String environment) {
$initGetIt(getIt, environment: environment);
}
I just created a test environment and added following like, now its working as expected.
#injectableInit
void configureInjection(String environment) {
$initGetIt(getIt, environment: environment);
if (environment == Environment.test) {
getIt.allowReassignment = true;
}
}
tearDown(() async {
final getIt = GetIt.instance;
await getIt.reset();
});
I am writing an integration test using flutter_driver for searching using text field I have to enter(Keyboard Event) after entering text, I cannot find any solution to generate keyboard event in flutter_Driver, is there any solution to this?
test('search tests, search a user by name', () async {
print('Waiting for join now button');
print('search test started');
await driver.clearTimeline();
print('pause for 5 sec');
await Future.delayed(Duration(seconds: 5));
print('Tapping search field');
await driver.waitFor(searchbar.searchFieldFinder);
await driver.tap(searchbar.searchFieldFinder);
print('enter user searching');
await driver.enterText('Test user');
//**Enter Keyboard Event here**
}, timeout: Timeout(Duration(minutes: 2)));
For keyboard event ENTER in integration tests you can use this code:
await tester.tap(find.byType(TextField));
await tester.enterText(find.byType(TextField), text);
await tester.testTextInput.receiveAction(TextInputAction.done);
await tester.pumpAndSettle(Duration(seconds: 1));
I don't know if it applies to driver tests, but in widget tests you can use the tester.sendKeyDownEvent() function like so:
await tester.sendKeyDownEvent(LogicalKeyboardKey.enter);
await tester.pumpAndSettle();
I would imagine that it would translate over to driver tests like this:
await driver.sendKeyDownEvent(LogicalKeyboardKey.enter);
await driver.pumpAndSettle();
In my app after press button it's opening another screen, a form (StatefulWidget) which is loading from FutureBuilder. I need to write test class for this,
But in log it says when executing form is not finished build. This is test code,
await tester.tap(find.byIcon(Icons.add));
await tester.pump(const Duration(seconds: 1));
await tester.runAsync(() async {
when(tester.tap(find.byKey(Key("add_new_form")))).thenAnswer((_) => Future.delayed(Duration(seconds: 30), () => []));
await tester.pumpAndSettle(Duration(seconds: 10), EnginePhase.build, Duration(minutes: 1));
await tester.pump();
await tester.pump(const Duration(seconds: 1));
await tester.pump(const Duration(seconds: 1));
expect(find.byKey(Key("form")), findsOneWidget);
});
how to write test class for flutter FutureBuilder ?? I have seen two questions relates to FutureBuilder but they are different from my situation. Any help would be appreciated.
I have a widget test in flutter that pumps the widget under test,
and when it opens, performs a background operation (staticWrapper.requestPermission()) which returns a Future and, based on its result, set a state.
The problem is that the test is not waiting this future to complete, test code:
/// When micro permission denied, should show error message.
testWidgets('When micro permission denied, should show error message.',
(WidgetTester tester) async {
when(staticWrapper.requestPermission(Permission.RecordAudio))
.thenAnswer((_) => Future.value(PermissionStatus.denied));
await tester.pumpWidget(widget);
final loginText = find.text(callScreen_microPermissionDenied);
expect(loginText, findsOneWidget);
});
Affected widget code:
void _requestMicroPermission() async {
final result =
await staticWrapper.requestPermission(Permission.RecordAudio);
debugPrint("Microphone permission status: $result");
if (result == PermissionStatus.authorized) {
native.init();
} else {
setState(() {
_loginText = tnsManager.getText(TranslationsManager.callScreen_microPermissionDenied);
});
}
}
The expect() method is called before the setState() call.
Any help?
Finally I solved the issue using WidgetTester#pumpAndSettle():
testWidgets('When micro permission denied, should show error message.',
(WidgetTester tester) async {
when(staticWrapper.requestPermission(Permission.RecordAudio))
.thenAnswer((_) => Future.value(PermissionStatus.denied));
await tester.pumpWidget(widget);
await tester.pump();
final loginText = find.text(callScreen_microPermissionDenied);
expect(loginText, findsOneWidget);
});