public void WhenNavigatedToObservable()
{
using (_mockViewModel !().WhenNavigatedToObservable().Subscribe(x => Console.WriteLine("Observed")))
using (_router !.Navigate.Execute(_mockViewModel()).Subscribe())
{
}
}
public void Navigate()
{
using (_router !.Navigate.Execute(_mockViewModel()).Subscribe())
{
_router.NavigationStack.ToList();
}
}
public void ExecuteDoesNotThrowExceptionWithNullParameter()
{
// Arrange
var processStarter = Mock.Of <IProcessStarter>();
var command = new Navigate(processStarter);
// Act
Assert.DoesNotThrow(() => command.Execute(null));
// Assert
Mock.Get(processStarter).Verify(p =>
p.StartNewProcess(
It.IsAny <ProcessStartInfo>()),
Times.Never);
}
public void ExecuteStartsNewProcessWithAbsoluteUri()
{
// Arrange
var uri = new Uri("https://github.com/Ant-f");
var processStarter = Mock.Of <IProcessStarter>();
var command = new Navigate(processStarter);
// Act
command.Execute(uri);
// Assert
Mock.Get(processStarter).Verify(p =>
p.StartNewProcess(It.Is <ProcessStartInfo>(i =>
i.FileName == uri.AbsoluteUri)));
}
void setupRx()
{
var scheduler = this.scheduler ?? RxApp.MainThreadScheduler;
var countAsBehavior = Observable.Concat(
Observable.Defer(() => Observable.Return(_NavigationStack.Count)),
NavigationStack.CountChanged);
NavigateBack =
ReactiveCommand.CreateFromObservable(() => {
NavigationStack.RemoveAt(NavigationStack.Count - 1);
return(Observables.Unit);
},
countAsBehavior.Select(x => x > 1),
scheduler);
Navigate = ReactiveCommand.CreateFromObservable <IRoutableViewModel, IRoutableViewModel>(x => {
var vm = x as IRoutableViewModel;
if (vm == null)
{
throw new Exception("Navigate must be called on an IRoutableViewModel");
}
NavigationStack.Add(vm);
return(Observable.Return(x));
},
outputScheduler: scheduler);
NavigateAndReset = ReactiveCommand.CreateFromObservable <IRoutableViewModel, IRoutableViewModel>(x => {
NavigationStack.Clear();
return(Navigate.Execute(x));
},
outputScheduler: scheduler);
CurrentViewModel = Observable.Concat(
Observable.Defer(() => Observable.Return(NavigationStack.LastOrDefault())),
NavigationStack.Changed.Select(_ => NavigationStack.LastOrDefault()));
}