public void ActivatingViewSmokeTest()
{
var locator = new ModernDependencyResolver();
locator.InitializeSplat();
locator.InitializeReactiveUI();
locator.Register(() => new ActivatingViewFetcher(), typeof(IActivationForViewFetcher));
using (locator.WithResolver()) {
var vm = new ActivatingViewModel();
var fixture = new ActivatingView();
fixture.ViewModel = vm;
Assert.Equal(0, vm.IsActiveCount);
Assert.Equal(0, fixture.IsActiveCount);
fixture.Loaded.OnNext(Unit.Default);
Assert.Equal(1, vm.IsActiveCount);
Assert.Equal(1, fixture.IsActiveCount);
fixture.Unloaded.OnNext(Unit.Default);
Assert.Equal(0, vm.IsActiveCount);
Assert.Equal(0, fixture.IsActiveCount);
}
}
public void SwitchingViewModelShouldDeactivateIt()
{
var locator = new ModernDependencyResolver();
locator.InitializeResolver();
locator.Register(() => new ActivatingViewFetcher(), typeof(IActivationForViewFetcher));
using (locator.WithResolver())
{
var vm = new ActivatingViewModel();
var fixture = new ActivatingView();
fixture.ViewModel = vm;
Assert.Equal(0, vm.IsActiveCount);
Assert.Equal(0, fixture.IsActiveCount);
fixture.Loaded.OnNext(Unit.Default);
Assert.Equal(1, vm.IsActiveCount);
Assert.Equal(1, fixture.IsActiveCount);
var newVm = new ActivatingViewModel();
Assert.Equal(0, newVm.IsActiveCount);
fixture.ViewModel = newVm;
Assert.Equal(0, vm.IsActiveCount);
Assert.Equal(1, newVm.IsActiveCount);
}
}
public void PreviousActivationsGetTrashedOnDoubleActivate()
{
var fixture = new ActivatingViewModel();
Assert.Equal(0, fixture.IsActiveCount);
fixture.Activator.Activate();
Assert.Equal(1, fixture.IsActiveCount);
fixture.Activator.Activate();
Assert.Equal(1, fixture.IsActiveCount);
fixture.Activator.Deactivate();
Assert.Equal(0, fixture.IsActiveCount);
}
public void ActivationsGetRefCounted()
{
var fixture = new ActivatingViewModel();
Assert.Equal(0, fixture.IsActiveCount);
fixture.Activator.Activate();
Assert.Equal(1, fixture.IsActiveCount);
fixture.Activator.Activate();
Assert.Equal(1, fixture.IsActiveCount);
fixture.Activator.Deactivate();
Assert.Equal(1, fixture.IsActiveCount);
// Refcount drops to zero
fixture.Activator.Deactivate();
Assert.Equal(0, fixture.IsActiveCount);
}
