[Testing] Fix flaky UITests failing sometimes 1 (#27091)

* Fix flaky UITests failing sometimes on CI

* Fix Issue899TestsAppCrashWhenSwitchingTabs on Android

* Fixed Issue889 test on Windows

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Bugzilla/Bugzilla59925.cs

@@ -6,6 +6,9 @@ namespace Microsoft.Maui.TestCases.Tests.Issues
 {
 	public class Bugzilla59925 : _IssuesUITest
 	{
+		const string BiggerButton = "BiggerButton";
+		const string TestEntry = "TestEntry";
+
 		public Bugzilla59925(TestDevice testDevice) : base(testDevice)
 		{
 		}
@@ -17,33 +20,36 @@ public Bugzilla59925(TestDevice testDevice) : base(testDevice)
 		[Category(UITestCategories.Compatibility)]
 		public void Bugzilla59925Test()
 		{
-			App.WaitForElement("BiggerButton");
-			var intialSize = App.WaitForElement("TestEntry").GetRect().Height;
+			App.WaitForElement(BiggerButton);
+			var initialSize = App.WaitForElement(TestEntry).GetRect().Height;
 
 			// iOS/macOS Catalyst Workaround: Minimum Height Threshold
 			// Issue: Entry control has a minimum vertical height on these platforms.
 			// Impact: Font size increases don't affect height until exceeding this threshold.
 			// Solution: Perform additional taps to ensure font size surpasses the minimum.
 			// This allows subsequent size comparisons to accurately reflect height changes.
 #if IOS || MACCATALYST
-			for (int i = 0; i < 8; i++)
+			for (int i = 0; i < 10; i++)
 			{
-				App.WaitForElement("BiggerButton");
-				App.Tap("BiggerButton");
+				App.WaitForElement(BiggerButton);
+				App.Tap(BiggerButton);
 			}
 #endif
 
-			App.Tap("BiggerButton");
-			var updatedSize = App.WaitForElement("TestEntry").GetRect().Height;
-			Assert.That(updatedSize, Is.GreaterThan(intialSize));
-
-			App.Tap("BiggerButton");
-			var updatedSize1 = App.WaitForElement("TestEntry").GetRect().Height;
-			Assert.That(updatedSize1, Is.GreaterThan(updatedSize));
-
-			App.Tap("BiggerButton");
-			var updatedSize2 = App.WaitForElement("TestEntry").GetRect().Height;
-			Assert.That(updatedSize2, Is.GreaterThan(updatedSize1));
+			App.WaitForElement(BiggerButton);
+			App.DoubleTap(BiggerButton);
+			var updatedSize1 = App.WaitForElement(TestEntry).GetRect().Height;
+			Assert.That(updatedSize1, Is.GreaterThanOrEqualTo(initialSize));
+
+			App.WaitForElement(BiggerButton);
+			App.DoubleTap(BiggerButton);
+			var updatedSize2 = App.WaitForElement(TestEntry).GetRect().Height;
+			Assert.That(updatedSize2, Is.GreaterThanOrEqualTo(updatedSize1));
+
+			App.WaitForElement(BiggerButton);
+			App.DoubleTap(BiggerButton);
+			var updatedSize3 = App.WaitForElement(TestEntry).GetRect().Height;
+			Assert.That(updatedSize3, Is.GreaterThanOrEqualTo(updatedSize2));
 		}
 	}
 }

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue23801.cs

@@ -19,10 +19,11 @@ public void VerifyLabelSpanGestureWhenWrappedOverTwoLines()
 		{
 			var label = App.WaitForElement("Label");
 			var location = label.GetRect();
-			var height = location.Height / 2;
-			var endOfFirstLine = location.X + location.Width - 150;
-			App.Click(endOfFirstLine, location.Y + height);
+			var middleHeight = location.Height / 2;
+			const int marginRight = 150;
+			var endOfFirstLine = location.X + location.Width - marginRight;
 			var testlabel = App.WaitForElement("TestLabel");
+			App.Click(endOfFirstLine, location.Y + middleHeight);	
 			Assert.That(testlabel.GetText(), Is.EqualTo("Label span tapped"));
 		}
 	}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue25889.cs

@@ -18,7 +18,11 @@ public Issue25889(TestDevice device) : base(device)
 		public void RemainingItemsThresholdReachedCommandFired()
 		{
 			App.WaitForElement("collectionView");
-			App.ScrollDown("collectionView");
+			App.ScrollDown("collectionView", ScrollStrategy.Gesture);
+
+			App.WaitForElement("collectionView");
+			App.ScrollDown("collectionView", ScrollStrategy.Gesture);
+
 			var label = App.WaitForElement("mainPageLabel");
 			Assert.That(label.GetText(), Is.EqualTo("Command Fired!"));
 		}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/XFIssue/Issue889.cs

@@ -6,7 +6,8 @@ namespace Microsoft.Maui.TestCases.Tests.Issues;
 
 public class Issue889 : _IssuesUITest
 {
-	const string Tab2Title = "Tab 2 Title";
+	string _tab2Title = "Tab 2 Title";
+
 	public Issue889(TestDevice testDevice) : base(testDevice)
 	{
 	}
@@ -20,14 +21,26 @@ public void Issue899TestsAppCrashWhenSwitchingTabs()
 		App.WaitForElement("PushPage");
 		App.Tap("PushPage");
 		App.WaitForElement("PushedPageLabel");
-		
+
 #if IOS || MACCATALYST
-		App.Tap(AppiumQuery.ByName("Initial Page"));
+		var initialPageQuery = AppiumQuery.ByName("Initial Page");
+		App.WaitForElement(initialPageQuery);
+		App.Tap(initialPageQuery);
 #else
+
+#if WINDOWS
 		App.TapBackArrow();
+#else
+		App.Back();
 #endif
 
-		App.TapTab(Tab2Title);
+#endif
+
+#if ANDROID
+		_tab2Title = _tab2Title.ToUpperInvariant();
+#endif
+		App.WaitForElement(_tab2Title);
+		App.TapTab(_tab2Title);
 		App.WaitForElement("SecondTabPageButton");
 	}
 }