public ErrorAuthViewModel(INavigationService navigationService)
{
RetryCommand = ReactiveCommand.Create(() => {});
Activator = new ViewModelActivator();
this.WhenActivated(disposables =>
{
RetryCommand.Select(unit => typeof(LoginViewModel))
.Subscribe(navigationService.Navigate)
.DisposeWith(disposables);
Disposable.Create(() => { }).DisposeWith(disposables);
});
}
public void should_retry_three_times()
{
int i = 0;
var command =
new RetryCommand(() =>
{
if (i < 3)
{
i++;
throw new NotFiniteNumberException();
}
},
4);
command.Execute(1);
Assert.AreEqual(3, command.Errors().Length);
}
public async Task WhenProcessingRetringCommandThenRetry()
{
// Arrange
Mock <ISpy> spy = new Mock <ISpy>(MockBehavior.Strict);
spy.Setup(s => s.Spy("Trying"));
RetryHandler commandCommandHandler = new RetryHandler(spy.Object);
this.SetupHandler <RetryCommand>(commandCommandHandler);
MessageProcessor processor = this.CreatTestableProcessor();
RetryCommand command = new RetryCommand(2);
// Act
var result = await processor.ProcessAsync(command);
// Assert
spy.Verify(s => s.Spy("Trying"), Times.Exactly(3));
}
public void WhenProcessingRetringCommandButAlwayFailsThenThrowsInvalidOperationException()
{
// Arrange
Mock <ISpy> spy = new Mock <ISpy>(MockBehavior.Strict);
spy.Setup(s => s.Spy("Trying"));
RetryHandler commandCommandHandler = new RetryHandler(spy.Object);
this.SetupHandler <RetryCommand>(commandCommandHandler);
MessageProcessor processor = this.CreatTestableProcessor();
RetryCommand command = new RetryCommand(10);
// Act
Assert.ThrowsAsync <InvalidOperationException>(async() => await processor.ProcessAsync(command));
// Assert
spy.Verify(s => s.Spy("Trying"), Times.Exactly(6));
}
