To imitate HTTP client calls during Flutter testing, you can use a package called mockito
. Here's how you can use it:
mockito
package to your pubspec.yaml
file:dev_dependencies:
mockito: any
mockito
package in your test file:import 'package:mockito/mockito.dart';
class MockClient extends Mock implements http.Client {}
test('Test HTTP request', () async {
final mockClient = MockClient();
// Create a response that the mock client will return
final response = http.Response('{"data": "Hello World"}', 200);
// Use the `when` method from `mockito` to mock the request
when(mockClient.get('http://example.com/data'))
.thenAnswer((_) async => response);
// Make the HTTP request with the mock client
final myData = await fetchData(mockClient);
expect(myData.data, equals('Hello World'));
});
In this example, we're mocking a HTTP GET request to http://example.com/data
. We use the when
method from mockito
to tell the mock client what to return when this request is made. We then make the HTTP request using a function called fetchData
that takes an HTTP client as a parameter. Finally, we assert that the data returned by the fetchData
function is equal to 'Hello World'
.
By using mockito
to mock HTTP requests, we can test our code without actually making real HTTP requests. This makes our tests faster and more reliable.
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Asked: 2021-06-04 11:00:00 +0000
Seen: 18 times
Last updated: Jun 22 '21
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