maui-linux/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32902.cs

using System;

using Xamarin.Forms.CustomAttributes;


#if UITEST
using Xamarin.UITest.iOS;
using Xamarin.UITest;
using NUnit.Framework;
#endif

namespace Xamarin.Forms.Controls
{
	[Preserve (AllMembers = true)]
	[Issue (IssueTracker.Bugzilla, 32902, "[iOS | iPad] App Crashes (without debug log) when Master Detail isPresented and navigation being popped")]
	public class Bugzilla32902 : TestContentPage // or TestMasterDetailPage, etc ...
	{
		ContentPage FirstContentPage { get; set; }

		MasterDetailPage HomePage { get; set; }

		NavigationPage DetailPage { get; set; }

		ContentPage MasterPage { get; set; }

		protected override void Init ()
		{
			var rootContentPageLayout = new StackLayout();
			var rootContentPageButton = new Button()
			{
				Text = "PushAsync to next page",
				AutomationId = "btnNext",
				BackgroundColor = Color.FromHex("#ecf0f1"),
				TextColor = Color.Black
			};
			rootContentPageButton.Clicked += async (sender, args) =>
			{
				await Navigation.PushAsync(FirstContentPage);
			};

			rootContentPageLayout.Children.Add(rootContentPageButton);
			Content = rootContentPageLayout;

			Title = "RootPage";
			BackgroundColor = Color.FromHex ("#2c3e50");

			//MASTER PAGE
			MasterPage = new ContentPage()
			{
				Title = "Master",
				BackgroundColor = Color.FromHex("#1abc9c")
			};
			var masterPageLayout = new StackLayout();
			var masterPageButton = new Button()
			{
				Text = "Pop Modal and Pop Root",
				AutomationId = "btnPop",
				BackgroundColor = Color.FromHex("#ecf0f1"),
				TextColor = Color.Black
			};
			masterPageButton.Clicked += async (sender, args) =>
			{
				await Navigation.PopModalAsync();
				await Navigation.PopToRootAsync();
			};
			masterPageLayout.Children.Add(masterPageButton);
			MasterPage.Content = masterPageLayout;


			//DETAIL PAGE
			DetailPage = new NavigationPage (new ContentPage () { 
				Title = "RootNavigationDetailPage", 
				BackgroundColor = Color.FromHex ("#2980b9"), 
				Content = new Button { 
					Text = "PopModal", 
					TextColor = Color.White, 
					Command = new Command (async () => {
						await Navigation.PopModalAsync ();
					})
				}
			});

			//MASTERDETAIL PAGE
			HomePage = new MasterDetailPage()
			{
				Master = MasterPage,
				Detail = DetailPage
			};

			//FIRST CONTENT PAGE
			FirstContentPage = new ContentPage()
			{
				Title = "First Content Page",
				BackgroundColor = Color.FromHex("#e74c3c")
			};
			var firstContentPageLayout = new StackLayout();
			var firstContentPageButton = new Button()
			{
				Text = "Push Modal To Master-Detail Page",
				AutomationId = "btnPushModal",
				BackgroundColor = Color.FromHex("#ecf0f1"),
				TextColor = Color.Black
			};
			firstContentPageButton.Clicked += async (sender, args) =>
			{
				await Navigation.PushModalAsync(HomePage);
			};
			firstContentPageLayout.Children.Add(firstContentPageButton);
			FirstContentPage.Content = firstContentPageLayout;


		}

#if UITEST
		[Test]
		public void Bugzilla32902Test ()
		{
			var appIos = RunningApp as iOSApp;
			if (appIos != null) {
				if(appIos.Device.IsTablet)
				{
					RunningApp.Tap (q => q.Marked ("btnNext"));
					RunningApp.Tap (q => q.Marked ("btnPushModal"));
					RunningApp.Tap (q => q.Marked ("Master"));
					RunningApp.Tap (q => q.Marked ("btnPop"));
				}
			}
		}
#endif
	}
}