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Easier to read tests? More stable?

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Tracy Pearson
2022-08-31 23:23:41 -04:00
parent c36b4581c1
commit e5980ecb10
3 changed files with 97 additions and 23 deletions
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78
WpfViewModelFirst.Tests/MainWindowViewModelTests.cs
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@@ -1,4 +1,6 @@
using Moq;
using System.Windows.Controls;
using System.Windows.Threading;
using WpfViewModelFirst.Part1;
using WpfViewModelFirst.Part2;
@@ -17,32 +19,76 @@ namespace WpfViewModelFirst.Tests
main.Part1(null);
Assert.Equal(part1ViewModel, main.CurrentViewModel);
}
//[Fact]
//public async Task Part1CallbackIsSuccessfull()
//{
// TaskCompletionSource<bool> taskCompletionSource = new();
// Mock<IViewModelFactory> mockViewModelFactory = new();
// mockViewModelFactory.Setup(vmf => vmf.GetPart1ViewModel(It.IsAny<Func<Task>>()))
// .Callback<Func<Task>>(c =>
// {
// Task.Run(() =>
// {
// c.Invoke();
// });
// });
// mockViewModelFactory.Setup(vmf => vmf.GetPart2ViewModel())
// .Returns(() => new Part2ViewModel());
// MainWindowViewModel main = new(mockViewModelFactory.Object);
// main.ItHappened += () => taskCompletionSource.SetResult(true);
// main.Part1(null);
// await taskCompletionSource.Task.WaitAsync(CancellationToken.None);
// Assert.IsType<Part2ViewModel>(main.CurrentViewModel);
// Assert.Single(main.Strings);
//}
[Fact]
public async Task Part1CallbackIsSuccessfull()
public async Task Part1ActionWillSetCurrentViewModel()
{
TaskCompletionSource<bool> taskCompletionSource = new();
Mock<IViewModelFactory> mockViewModelFactory = new();
mockViewModelFactory.Setup(vmf => vmf.GetPart1ViewModel(It.IsAny<Func<Task>>()))
.Returns(() => new Part1ViewModel(() =>
{
return Task.CompletedTask;
}))
.Callback<Func<Task>>(c =>
{
Task.Run(() =>
{
c.Invoke();
});
});
mockViewModelFactory.Setup(vmf => vmf.GetPart2ViewModel())
.Returns(() => new Part2ViewModel());
MainWindowViewModel main = new(mockViewModelFactory.Object);
TaskCompletionSource<bool> taskCompletionSource = new();
main.ItHappened += () => taskCompletionSource.SetResult(true);
main.Part1(null);
Task.Run(() =>
{
DispatcherFrame frame = new();
frame.Dispatcher.Invoke(
DispatcherPriority.Normal, () =>
{
main.Part1Action();
frame.Continue = true;
});
Dispatcher.PushFrame(frame);
});
await taskCompletionSource.Task.WaitAsync(CancellationToken.None);
Assert.IsType<Part2ViewModel>(main.CurrentViewModel);
}
[Fact]
public async Task Part1ActionWillSetSingle()
{
Mock<IViewModelFactory> mockViewModelFactory = new();
mockViewModelFactory.Setup(vmf => vmf.GetPart2ViewModel())
.Returns(() => new Part2ViewModel());
MainWindowViewModel main = new(mockViewModelFactory.Object);
TaskCompletionSource<bool> taskCompletionSource = new();
main.ItHappened += () => taskCompletionSource.SetResult(true);
Task.Run(() =>
{
DispatcherFrame frame = new();
frame.Dispatcher.Invoke(
DispatcherPriority.Normal, () =>
{
main.Part1Action();
frame.Continue = true;
});
Dispatcher.PushFrame(frame);
});
await taskCompletionSource.Task.WaitAsync(CancellationToken.None);
Assert.Single(main.Strings);
}
}
}