public void WhenNavigatedToCallsOnNavigatedToWhenViewModelIsFirstAdded()
{
var count = 0;
var screen = new TestScreen();
var vm = new RoutableViewModel(screen);
vm.WhenNavigatedTo(() => {
count++;
return(Disposable.Empty);
});
screen.Router.Navigate.Execute(vm);
Assert.Equal(1, count);
}
public void WhenNavigatedToCallsDisposeWhenViewModelLosesFocus()
{
var count = 0;
var screen = new TestScreen();
var vm = new RoutableViewModel(screen);
var vm2 = new RoutableViewModel(screen);
vm.WhenNavigatedTo(() => {
return(Disposable.Create(() => count++));
});
screen.Router.Navigate.Execute(vm);
Assert.Equal(0, count);
screen.Router.Navigate.Execute(vm2);
Assert.Equal(1, count);
}
public void WhenNavigatedToCallsDisposeWhenNavigationStackIsReset()
{
var count = 0;
var screen = new TestScreen();
var vm1 = new RoutableViewModel(screen);
var vm2 = new RoutableViewModel(screen);
vm1.WhenNavigatedTo(() =>
{
return(Disposable.Create(() => count++));
});
screen.Router.Navigate.Execute(vm1);
Assert.Equal(0, count);
screen.Router.NavigateAndReset.Execute(vm2);
Assert.Equal(1, count);
}
public void WhenNavigatedToCallsOnNavigatedToWhenViewModelReturnsToTopOfStack()
{
var count = 0;
var screen = new TestScreen();
var vm = new RoutableViewModel(screen);
var vm2 = new RoutableViewModel(screen);
vm.WhenNavigatedTo(() =>
{
count++;
return Disposable.Empty;
});
screen.Router.Navigate.Execute(vm);
screen.Router.Navigate.Execute(vm2);
screen.Router.Navigate.Execute(vm);
Assert.Equal(2, count);
}