public async Task OneTimeSetup()
{
Xamarin.Forms.Mocks.MockForms.Init();
navController = new NavController();
await navController.InitAsync(new TestPage0());
await navController.PushAsync <TestViewModel1>();
await navController.PushModalAsync <TestViewModel2>();
await navController.PushModalAsync <TestViewModel3>();
}
public async Task OnAppearing_runs_after_PopModalAsync(bool isAnimated)
{
await navController.PushAsync <TestViewModel1>();
await navController.PushModalAsync <TestViewModel2>();
await navController.PopModalAsync(isAnimated);
Assume.That(navController.TopViewModel is TestViewModel1);
var vm = navController.TopViewModel as TestViewModel1;
Assert.IsTrue(vm.OnAppearingRuns == 2);
}
public async Task OnAppearing_doesnt_runs_after_PopAsync_if_modal(bool isAnimated)
{
navController = new NavController();
await navController.InitAsync(new TestPage1());
await navController.PushAsync <TestViewModel2>();
await navController.PushModalAsync <TestViewModel3>();
await navController.PopAsync(isAnimated);
var vm = navController.MainStack.GetCurrentViewModel();
Assume.That(vm is TestViewModel1);
Assert.AreEqual(1, (vm as TestViewModel1).OnAppearingRuns);
}
public async Task OnAppearing_doesnt_run_after_CollapseMainStack_if_modal()
{
navController = new NavController();
await navController.InitAsync(new TestPage0());
await navController.PushAsync <TestViewModel1>();
await navController.PushModalAsync <TestViewModel2>();
await navController.CollapseMainStack();
Assume.That(navController.RootViewModel is TestViewModel1);
var vm = navController.RootViewModel as TestViewModel1;
Assert.AreEqual(1, vm.OnAppearingRuns);
}
public async Task OnAppearing_doesnt_run_after_PopToRootAsync_if_modal(bool isAnimated)
{
navController = new NavController();
await navController.InitAsync(new TestPage1());
await navController.PushAsync <TestViewModel2>();
await navController.PushModalAsync <TestViewModel3>();
await navController.PopToRootAsync(isAnimated);
Assume.That(navController.RootViewModel is TestViewModel1);
var vm = navController.RootViewModel as TestViewModel1;
Assert.AreEqual(1, vm.OnAppearingRuns);
}