feat: Update CommandBar UITests

Author: ajpinedam

src/SamplesApp/SamplesApp.Shared/App.xaml

@@ -2,8 +2,10 @@
 			 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 			 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 			 xmlns:xamarin="http://nventive.com/xamarin"
+			 xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 			 xmlns:ios="http://nventive.com/ios"
 			 xmlns:toolkit="using:Uno.UI.Toolkit"
+			 mc:Ignorable="ios"
 			 RequestedTheme="Light">
 	<Application.Resources>
 		<ResourceDictionary>
@@ -113,15 +115,14 @@
 			</Style>
 
 			<Style x:Key="DefaultCommandBarStyle"
-					TargetType="CommandBar"
-					xamarin:BasedOn="{StaticResource NativeDefaultCommandBar}">
+					TargetType="CommandBar">
 
-				<!-- Remove the back button title (and only leave the back arrow) -->
+				 <!--Remove the back button title (and only leave the back arrow)--> 
 				<ios:Setter Property="(toolkit:CommandBarExtensions.BackButtonTitle)"
 							Value="" />
 			</Style>
 
-			<!-- Default Style -->
+			 <!--Default Style--> 
 			<Style TargetType="CommandBar"
 					BasedOn="{StaticResource DefaultCommandBarStyle}" />
 

src/SamplesApp/SamplesApp.UITests/Windows_UI_Xaml_Controls/CommandBarTests/UnoSamples_Tests.NativeCommandBar.cs

@@ -217,11 +217,15 @@ public void When_Navigated_CommandBarShouldHideBackButtonTitle_NativeFrame()
 			_app.WaitForElement("NavigateToPage2Button");
 			_app.FastTap("NavigateToPage2Button");
 
-			_app.WaitForElement("Page2CommandBar");
+			_app.WaitForElement("BackButtonTitleButton");
+
+			_app.FastTap("BackButtonTitleButton");
+
+			_app.Wait(TimeSpan.FromMilliseconds(800));
 
-			var backButtonText = _app.Marked("Back").FirstResult();
+			var textblock = _app.Marked("InfoTextBlock");
 
-			Assert.IsNull(backButtonText);
+			Assert.AreEqual("PASSED", textblock.GetDependencyPropertyValue("Text"));
 		}
 	}
 }

src/SamplesApp/UITests.Shared/Windows_UI_Xaml_Controls/CommandBar/BackButtonTitle/CommandBar_Page2.xaml

@@ -15,8 +15,19 @@
 			<RowDefinition Height="*" />
 		</Grid.RowDefinitions>
 
-		<CommandBar Content="Page 2"
-		            x:Name="Page2CommandBar" />
+	<CommandBar Content="Page 2"
+				x:Name="Page2CommandBar" />
+
+	<StackPanel Grid.Row="1"
+				VerticalAlignment="Center">
+				<Button x:Name="BackButtonTitleButton"
+						Content="Get Back Text"
+						Click="OnButtonClicked"
+						HorizontalAlignment="Center"/>
+
+				<TextBlock x:Name="InfoTextBlock"
+						   HorizontalAlignment="Center"/>
+	</StackPanel>
 
 	</Grid>
 </Page>

src/SamplesApp/UITests.Shared/Windows_UI_Xaml_Controls/CommandBar/BackButtonTitle/CommandBar_Page2.xaml.cs

@@ -14,6 +14,11 @@
 using Windows.UI.Xaml.Media;
 using Windows.UI.Xaml.Navigation;
 
+#if __IOS__
+using UIKit;
+using Uno.UI.Controls;
+#endif
+
 // The User Control item template is documented at https://go.microsoft.com/fwlink/?LinkId=234236
 
 namespace UITests.Windows_UI_Xaml_Controls.CommandBar.BackButtonTitle
@@ -24,5 +29,25 @@ public CommandBar_Page2()
         {
             this.InitializeComponent();
         }
+
+        public void OnButtonClicked(object sender, object args)
+        {
+
+#if __IOS__
+            UIView parent = this;
+            while (parent.HasParent())
+            {
+	            parent = parent.Superview;
+            }
+
+            var navigationBar = parent.FindFirstChild<UnoNavigationBar>();
+
+            var uiLabels = navigationBar?.FindSubviewsOfType<UILabel>();
+
+            var result = uiLabels?.Any(x => x.Text == "Back") ?? true;
+
+            InfoTextBlock.Text = result ? "FAILED" : "PASSED";
+#endif
+        }
     }
 }