public void ShouldBackFromDetailsCommandTakeYouBackToSelectedTabActive()
{
//arrange
viewModel = new ContactViewModel(DataManager);
//act
viewModel.NavigationService.SetRootPage(nameof(DashboardPage), new DashboardViewModel());
viewModel.NavigationService.NavigateAsync(nameof(CustomTabbedPage), null, false);
int selectedTab = 1;
viewModel.Init(selectedTab);
Task.Run(async() =>
{
await viewModel.ExecuteBackFromDetailsCommandAsync();
}).GetAwaiter().GetResult();
//assert
int currentTabIndex = viewModel.NavigationService.GetCurrentSelectedTabIndexOverMasterDetailPageWithTabbedPage();
Assert.AreEqual(selectedTab, currentTabIndex);
}