代码之家 › 专栏 › 技术社区 › Cyrus the Great

Flutter:mockitohttp客户端单元测试异常

flutter-layout mockito flutter unit-testing

Cyrus the Great · 技术社区 · 5 年前

我正在努力学习mockitohttp客户端测试。所以这是我的测试:

test(
  'should throw SocketException',
  () async {
    when(mockHttpCLient.get(any, headers: anyNamed('headers')))
        .thenThrow(SocketException);

    expect(
        () => foursquareRepositoryImpl.getVenuesDetails(venueId),
        throwsA(allOf(
            isArgumentError, predicate((e) => e is FetchDataException))));
  },
);

如你所见,我想扔 SocketException

此实现方法:

  @override
  Future<VenuesDetails> getVenuesDetails(String venueId) async {
    try {
      var response = await client.get(
          'https://api.foursquare.com/v2/venues/$venueId?client_id={{client_id}}&client_secret={{client_secret}}&v={{v}}',
          headers: {'Content-Type': 'application/json; charset=utf-8'});
    } on SocketException catch (e) {
      throw FetchDataException('No Internet connection');
    } 
    return null;
  }

但是当我运行我的测试时,我得到了一个错误:

Expected: throws (<Instance of 'ArgumentError'> and satisfies function)
  Actual: <Closure: () => Future<VenuesDetails>>
   Which: threw FetchDataException:<Error During Communication: No Internet connection>
          stack package:foursquare_app/repository/foursquare_repository.dart 60:7  FoursquareRepositoryImpl.getVenuesDetails
                test/repository/foursquare_repository_impl_test.dart 157:23        main.<fn>.<fn>.<fn>
                package:test_api                                                   expect
                package:flutter_test/src/widget_tester.dart 234:3                  expect
                test/repository/foursquare_repository_impl_test.dart 156:9         main.<fn>.<fn>
                ===== asynchronous gap ===========================
                package:test_api                                                   expect
                package:flutter_test/src/widget_tester.dart 234:3                  expect
                test/repository/foursquare_repository_impl_test.dart 156:9         main.<fn>.<fn>
                dart:async                                                         _AsyncAwaitCompleter.start
                test/repository/foursquare_repository_impl_test.dart 138:7         main.<fn>.<fn>

package:test_api                                            expect
package:flutter_test/src/widget_tester.dart 234:3           expect
test/repository/foursquare_repository_impl_test.dart 156:9  main.<fn>.<fn>
dart:async                                                  _AsyncAwaitCompleter.start
test/repository/foursquare_repository_impl_test.dart 138:7  main.<fn>.<fn>