How to mock http request in flutter integration test?

The solution I found was to define the mock in test_driver/app.dart and call the runApp function after that:

import 'package:flutter/widgets.dart';import 'package:flutter_driver/driver_extension.dart';import 'package:shared_preferences/shared_preferences.dart';import 'package:utgard/business/config/globals.dart';import 'package:utgard/main.dart' as app;class MockClient extends Mock implements http.Client {}void main() {  enableFlutterDriverExtension();  final MockClient client = MockClient();  // make your mocks here  httpClient = client;  runApp(app.MyApp());}

Instead of

      when(client.post('http://wwww.google.com'))          .thenAnswer((_) async => http.Response('{"title": "Test"}', 200));

try any and then assert it later

        when(          mockHttpClient.send(any),        ).thenAnswer((_) async => http.Response('{"title": "Test"}', 200));// ...        final String capt = verify(client.send(captureAny)).captured;        expect(capt, 'http://wwww.google.com');

There's a small chance the call param is not exactly what you mock, so go with any is safer.