我正在尝试使用Mockito对httpRequest
进行模拟。
在这里我定义了一个全局http客户端:
library utgard.globals;
import 'package:http/http.dart' as http;
http.Client httpClient = http.Client();
然后我在集成测试中替换:
import 'package:flutter_driver/driver_extension.dart';
import 'package:http/http.dart' as http;
import 'package:utgard/globals.dart' as globals;
import 'package:mockito/mockito.dart';
import 'package:utgard/main.dart' as app;
class MockClient extends Mock implements http.Client {}
void main() {
final MockClient client = MockClient();
globals.httpClient = client;
enableFlutterDriverExtension();
app.main();
}
然后我尝试使用when
的模仿:
test('login with correct password', () async {
final client = MockClient();
when(globals.httpClient.post('http://www.google.com'))
.thenAnswer((_) async => http.Response('{"title": "Test"}', 200));
await driver.enterText('000000');
await driver.tap(loginContinuePasswordButton);
});
但是我收到以下错误:
状态错误:
when()
中未调用模拟方法。是真的方法吗?
答案 0 :(得分:3)
当您实现要模拟的方法而不是让Mockito这样做时,可能会发生此问题。
下面的代码将返回Bad state: Mock method was not called within when(). Was a real method called?
:
class MockFirebaseAuth extends Mock implements FirebaseAuth {
FirebaseUser _currentUser;
MockFirebaseAuth(this._currentUser);
// This method causes the issue.
Future<FirebaseUser> currentUser() async {
return _currentUser;
}
}
final user = MockFirebaseUser();
final mockFirebaseAuth = MockFirebaseAuth(user);
// Will throw `Bad state: Mock method was not called within `when()`. Was a real method called?`
when(mockFirebaseAuth.currentUser())
.thenAnswer((_) => Future.value(user));
您想要的是:
class MockFirebaseAuth extends Mock implements FirebaseAuth {}
final user = MockFirebaseUser();
final mockFirebaseAuth = MockFirebaseAuth();
// Will work as expected
when(mockFirebaseAuth.currentUser())
.thenAnswer((_) => Future.value(user));
当您尝试在非模拟子面板上呼叫when()
时,也会发生此问题:
class MyClass {
String doSomething() {
return 'test';
}
}
final myClassInstance = MyClass();
// Will throw `Bad state: Mock method was not called within `when()`. Was a real method called?`
when(myClassInstance.doSomething())
.thenReturn((_) => 'mockedValue');