public async Task Should_Observe_Pushed()
{
// Given
PopupNavigationEvent pushing = null;
var viewModel = new NavigableViewModelMock();
var popup = new PopupMock
{
ViewModel = viewModel
};
var navigation = Substitute.For <IPopupNavigation>();
var viewLocator = Substitute.For <IViewLocator>();
viewLocator.ResolveView(Arg.Any <IViewModel>()).Returns(popup);
PopupViewStackService sut = new PopupViewStackServiceFixture().WithNavigation(navigation).WithViewLocator(viewLocator);
sut.Pushed.Subscribe(x => pushing = x);
// When
await sut.PushPopup(viewModel);
navigation.Pushed += Raise.EventWith(new PopupNavigationEventArgs(popup, true));
// Then
pushing.ViewModel.Should().Be(viewModel);
}
public void Should_Observe_Pushing()
{
// Given
PopupNavigationEvent?pushing = null;
var viewModel = new NavigableViewModelMock();
var popup = new PopupMock
{
ViewModel = viewModel
};
var navigation = Substitute.For <IPopupNavigation>();
PopupViewStackService sut = new PopupViewStackServiceFixture().WithNavigation(navigation);
sut.Pushing.Subscribe(x => pushing = x);
// When
navigation.Pushing += Raise.EventWith(new PopupNavigationEventArgs(popup, true));
if (pushing is null)
{
throw new InvalidOperationException("pushing should not be null.");
}
// Then
pushing.ViewModel.Should().Be(viewModel);
}
public void Should_Call_Destroy()
{
// Given
PopupNavigationEvent pushing = null;
var viewModel = Substitute.For <IEverything>();
var popup = new PopupMock
{
ViewModel = viewModel
};
var navigation = Substitute.For <IPopupNavigation>();
PopupViewStackService sut = new PopupViewStackServiceFixture().WithNavigation(navigation);
sut.Popped.Subscribe(x => pushing = x);
// When
navigation.Popped += Raise.EventWith(new PopupNavigationEventArgs(popup, true));
// Then
((IDestructible)popup.ViewModel).Received(1).Destroy();
}
public void Should_Observe_Popped()
{
// Given
PopupNavigationEvent pushing = null;
var viewModel = new NavigableViewModelMock();
var popup = new PopupMock
{
ViewModel = viewModel
};
var navigation = Substitute.For <IPopupNavigation>();
PopupViewStackService sut = new PopupViewStackServiceFixture().WithNavigation(navigation);
sut.Popped.Subscribe(x => pushing = x);
// When
navigation.Popped += Raise.EventWith(new PopupNavigationEventArgs(popup, true));
// Then
pushing.ViewModel.Should().Be(viewModel);
}
public async Task Should_Call_Destroy()
{
// Given
var viewModel = Substitute.For <IEverything>();
var popup = new PopupMock
{
ViewModel = viewModel
};
bool pushed = false;
PopupViewStackService sut = new PopupViewStackServiceFixture().WithNavigation(new PopupNavigationMock());
sut.Popped.Select(_ => true).Subscribe(x => pushed = x);
// When
await sut.PushPopup(viewModel);
await sut.RemovePopup(viewModel);
// Then
((IDestructible)popup.ViewModel).Received(1).Destroy();
}
