maui-linux/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla59863_1.cs

using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;

#if UITEST
using Xamarin.UITest;
using NUnit.Framework;
using Xamarin.Forms.Core.UITests;
#endif

namespace Xamarin.Forms.Controls.Issues
{
#if UITEST
	[Category(UITestCategories.Gestures)]
#endif

	[Preserve(AllMembers = true)]
	[Issue(IssueTracker.Bugzilla, 59863, "TapGestureRecognizer extremely finicky", PlatformAffected.Android, 
		issueTestNumber:1)]
	public class Bugzilla59863_1 : TestContentPage
	{
		int _doubleTaps;
		const string DoubleTapBoxId = "doubleTapView";

		const string Doubles = "double(s)";

		protected override void Init()
		{
			var instructions = new Label
			{
				Text = "Tap the box below once. The counter should not increment. " 
						+ "Double tap the box. The counter should increment."
			};

			var doubleTapCounter = new Label {Text = $"{_doubleTaps} {Doubles} on {DoubleTapBoxId}"};

			var doubleTapBox = new BoxView
			{
				WidthRequest = 100,
				HeightRequest = 100,
				BackgroundColor = Color.Chocolate,
				AutomationId = DoubleTapBoxId
			};

			var doubleTap = new TapGestureRecognizer
			{
				NumberOfTapsRequired = 2,
				Command = new Command(() =>
				{
					_doubleTaps = _doubleTaps + 1;
					doubleTapCounter.Text = $"{_doubleTaps} {Doubles} on {DoubleTapBoxId}";
				})
			};

			doubleTapBox.GestureRecognizers.Add(doubleTap);

			Content = new StackLayout
			{	
				Margin = 40,
				HorizontalOptions = LayoutOptions.Fill, VerticalOptions = LayoutOptions.Fill,
				Children = { instructions, doubleTapBox, doubleTapCounter }
			};
		}

#if UITEST
		[Test]
		public void SingleTapWithOnlyDoubleTapRecognizerShouldRegisterNothing()
		{
			RunningApp.WaitForElement(DoubleTapBoxId);
			RunningApp.Tap(DoubleTapBoxId);

			RunningApp.WaitForElement($"0 {Doubles} on {DoubleTapBoxId}");
		}

		[Test]
		public void DoubleTapWithOnlyDoubleTapRecognizerShouldRegisterOneDoubleTap()
		{
			RunningApp.WaitForElement(DoubleTapBoxId);
			RunningApp.DoubleTap(DoubleTapBoxId);

			RunningApp.WaitForElement($"1 {Doubles} on {DoubleTapBoxId}");
		}
#endif
	}
}