C# 单元测试异步方法
我在单元测试异步方法时遇到了一些问题 下面是我的单元测试代码:C# 单元测试异步方法,c#,mstest,async-await,C#,Mstest,Async Await,我在单元测试异步方法时遇到了一些问题 下面是我的单元测试代码: [TestMethod] public async Task TestRefreshList_RefreshesList() { int countBeforeAdd = listViewModel.NotesTitles.Count; // Add a note. await listViewModel.NoteRepository.AddNoteA
[TestMethod]
public async Task TestRefreshList_RefreshesList()
{
int countBeforeAdd = listViewModel.NotesTitles.Count;
// Add a note.
await listViewModel.NoteRepository.AddNoteAsync(new Note { Title = String.Empty, Content = String.Empty });
// Refresh.
await listViewModel.RefreshList();
int countAfterAdd = listViewModel.NotesTitles.Count;
// Assert that the count increased by 1 and that it matches the count of the repository.
Assert.IsTrue(countAfterAdd == countBeforeAdd + 1 && countAfterAdd == mockNoteRepository.FakeNotes.Count);
}
当我运行这个测试时,它似乎永远不会通过第一个等待语句。如果有帮助,以下是测试中的方法:
public ObservableCollection<Note> FakeNotes { get; set; }
public Task AddNoteAsync(Models.Note note)
{
return new Task(() =>
{
FakeNotes.Add(note);
});
}
public Task<ObservableCollection<string>> GetAllNoteTitlesAsync()
{
// Return the titles of the notes in the FakeNotes collection.
return new Task<ObservableCollection<string>>(() =>
{
return new ObservableCollection<string>(FakeNotes.Select(n => n.Title));
});
}
任何帮助都将不胜感激。谢谢。您的
任务
从未启动。尝试使用Task。运行而不是Task
构造函数
public async Task RefreshList()
{
try
{
NotesTitles = await NoteRepository.GetAllNoteTitlesAsync();
}
catch (Exception)
{
Notifier.Notify("We encountered an error when trying to load your notes. Please try again. ", "Ooops!");
}
}