[Testing] Added UITest for MenuFlyoutItem Clicked/Command delegate

src/Controls/tests/TestCases.HostApp/Issues/Issue20685.cs

@@ -0,0 +1,79 @@
+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 20685, "MenuBarItem Commands not working on Mac Catalyst",
+    PlatformAffected.All)]
+public class Issue20685 : TestShell
+{
+    protected override void Init()
+    {
+        var resultLabel = new Label
+        {
+            Text = "No action performed yet",
+            FontSize = 18,
+            HorizontalOptions = LayoutOptions.Center,
+            AutomationId = "ResultLabel"
+        };
+
+        var menuItems = new MenuBarItem { Text = "MenuItems" };
+
+
+        // 1. Menu item using Clicked event
+        var clickedItem = new MenuFlyoutItem
+        {
+            Text = "Test Clicked Event",
+            AutomationId = "ClickedEventItem"
+        };
+        clickedItem.Clicked += (s, e) => resultLabel.Text = "Clicked event handler executed";
+        menuItems.Add(clickedItem);
+
+        // 2. Menu item using Command
+        var commandItem = new MenuFlyoutItem
+        {
+            Text = "Test Command",
+            AutomationId = "CommandItem",
+            Command = new Command(() => resultLabel.Text = "Command executed")
+        };
+        menuItems.Add(commandItem);
+
+        // 3. Menu item using Command with parameter
+        var parameterItem = new MenuFlyoutItem
+        {
+            Text = "Test Command Parameter",
+            AutomationId = "CommandWithParamItem",
+            Command = new Command<string>(param => resultLabel.Text = $"Command executed with parameter: {param}"),
+            CommandParameter = "Test Parameter"
+        };
+        menuItems.Add(parameterItem);
+
+        MenuBarItems.Add(menuItems);
+
+        var contentPage = new ContentPage
+        {
+            Content = new VerticalStackLayout
+            {
+                Padding = new Thickness(20),
+                Spacing = 20,
+                HorizontalOptions = LayoutOptions.Fill,
+                VerticalOptions = LayoutOptions.Center,
+                Children =
+                    {
+                        new Label
+                        {
+                            Text = "MenuFlyoutItem Test",
+                            FontSize = 24,
+                            HorizontalOptions = LayoutOptions.Center
+                        },
+                        resultLabel,
+                        new Label
+                        {
+                            Text = "Use the menu bar at the top to test the commands",
+                            HorizontalOptions = LayoutOptions.Center,
+                            HorizontalTextAlignment = TextAlignment.Center
+                        }
+                    }
+            }
+        };
+
+        AddContentPage(contentPage);
+    }
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue20685.cs

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+#if MACCATALYST || WINDOWS // MenuBarItems are only supported on desktop platforms
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+[Category(UITestCategories.Shell)]
+public class Issue20685 : _IssuesUITest
+{
+
+    public const string ResultLabel = "ResultLabel";
+    public const string MenuItems = "MenuItems";
+    public const string ClickedEventItem = "Test Clicked Event";
+    public const string CommandItem = "Test Command";
+    public const string CommandWithParamItem = "Test Command Parameter";
+
+    public Issue20685(TestDevice testDevice) : base(testDevice)
+    {
+    }
+
+    public override string Issue => "MenuBarItem Commands not working on Mac Catalyst";
+
+    private void OpenMenuAndTapItem(string menuItem)
+    {
+        App.WaitForElement(MenuItems);
+        App.Tap(MenuItems);
+        App.WaitForElement(menuItem);
+        App.Tap(menuItem);
+    }
+
+    [Test]
+    public void MenuFlyoutItem_ClickedEventWorks()
+    {
+        OpenMenuAndTapItem(ClickedEventItem);
+        Assert.That(App.WaitForElement(ResultLabel)?.GetText(), Is.EqualTo("Clicked event handler executed"));
+    }
+
+    [Test]
+    public void MenuFlyoutItem_CommandWorks()
+    {
+        OpenMenuAndTapItem(CommandItem);
+        Assert.That(App.WaitForElement(ResultLabel)?.GetText(), Is.EqualTo("Command executed"));
+    }
+
+    [Test]
+    public void MenuFlyoutItem_CommandWithParameterWorks()
+    {
+        OpenMenuAndTapItem(CommandWithParamItem);
+        Assert.That(App.WaitForElement(ResultLabel)?.GetText(), Is.EqualTo("Command executed with parameter: Test Parameter"));
+    }
+}
+
+#endif