我已经学习 Flutter 几个星期了,到目前为止我有 Android 背景,我喜欢它,我也很高兴发现 Flutter 从一开始就考虑到了测试。但是,我在运行以下测试时遇到了问题。
main() => {
test('test get popular repos', () async {
final testOwner = Owner(1010, "testLink");
final testRepo =
Repo(101, testOwner, "testRepo", "description", 'htmlUrl', 500);
final testRepoResponse = RepoResponse(List.from([testRepo]), null);
final uiModel = PopRepo(testRepo.owner.avatarUrl, testRepo.name,
testRepo.description, "Stars: ${testRepo.stargazersCount}");
final searchData = SearchData(List.from([uiModel]), null);
final Repository mockRepository = _mockRepository();
when(mockRepository.getPopularReposForOrg("org"))
.thenAnswer((_) => Future.value(testRepoResponse));
final repoSearchBloc = RepoSearchPageBloc(mockRepository);
await repoSearchBloc.getPopularRepos("org");
await expectLater(repoSearchBloc.resultSubject.stream, emits(searchData));
}),
};
class _mockRepository extends Mock implements Repository {}
我的 RepoSearchBloc 从 Repository 获取数据并将其转换为 Ui 模型。最后,它将现在 UI 就绪的数据发布到主题
这是 RepoSearchBloc 中正在测试的方法
getPopularRepos(String org) async {
if (org == null || org.isEmpty)
return resultSubject.add(SearchData(List(), null));
RepoResponse response = await _repository.getPopularReposForOrg(org);
if (response.error == null) {
List<Repo> repoList = response.results;
repoList.sort((a, b) => a.stargazersCount.compareTo(b.stargazersCount));
var uiRepoList = repoList
.map((repo) => PopRepo(repo.owner.avatarUrl, repo.name,
repo.description, "Stars: ${repo.stargazersCount}"))
.take(3)
.toList();
resultSubject.add(SearchData(uiRepoList, null));
} else {
ErrorState error = ErrorState(response.error);
resultSubject.add(SearchData(List(), error));
}
当我运行测试时,无论我用 BehaviorSubject 或 PublishSubject 做什么,我都会不断收到此消息:
ERROR: Expected: should emit an event that <Instance of 'SearchData'>
Actual: <Instance of 'BehaviorSubject<SearchData>'>
Which: emitted * Instance of 'SearchData'
任何想法如何让这个测试通过?