maui-linux/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla43161.cs

using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
using System.Linq;

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

namespace Xamarin.Forms.Controls.Issues
{

	[Preserve(AllMembers = true)]
	[Issue(IssueTracker.Bugzilla, 43161, "[iOS] Setting Accessory in ViewCellRenderer breaks layout", PlatformAffected.iOS)]
	public class Bugzilla43161 : TestContentPage
	{
		const string Instructions = "On iOS, all three of the following ListViews should have ListItems labeled with numbers and a right arrow. If any of the ListViews does not contain numbers, this test has failed.";
		const string ListView1 = "Accessory with Context Actions";
		const string ListView2 = "Accessory with RecycleElement";
		const string ListView3 = "Accessory with RetainElement";

		[Preserve(AllMembers = true)]
		public class AccessoryViewCell : ViewCell
		{
			public AccessoryViewCell()
			{
				var label = new Label();
				label.SetBinding(Label.TextProperty, ".");
				View = label;
			}
		}

		[Preserve(AllMembers = true)]
		public class AccessoryViewCellWithContextActions : AccessoryViewCell
		{
			public AccessoryViewCellWithContextActions()
			{
				var label = new Label();
				label.SetBinding(Label.TextProperty, ".");
				View = label; 
				
				var delete = new MenuItem { Text = "Delete" };
				ContextActions.Add(delete);
			}
		}

		protected override void Init()
		{
			var label = new Label { Text = Instructions };
			var listView = new ListView { ItemTemplate = new DataTemplate(typeof(AccessoryViewCellWithContextActions)), ItemsSource = Enumerable.Range(0, 9), Header = ListView1 };
			var listView2 = new ListView(ListViewCachingStrategy.RecycleElement) { ItemTemplate = new DataTemplate(typeof(AccessoryViewCell)), ItemsSource = Enumerable.Range(10, 19), Header = ListView2 };
			var listView3 = new ListView { ItemTemplate = new DataTemplate(typeof(AccessoryViewCell)), ItemsSource = Enumerable.Range(20, 29), Header = ListView3 };

			Content = new StackLayout { Children = { label, listView, listView2, listView3 } };
		}

#if (UITEST && __IOS__)
		[Test]
		public void Bugzilla43161Test()
		{
			RunningApp.WaitForElement(q => q.Marked("0"));
			RunningApp.WaitForElement(q => q.Marked("10"));
			RunningApp.WaitForElement(q => q.Marked("20"));
		}
#endif
	}
}