Add event EventHandler ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted to allowunit tests confirm that we initialized the AndroidDialogFragmentService

Author: TheCodeTraveler

src/CommunityToolkit.Maui.Core/AppBuilderExtensions.shared.cs

@@ -17,6 +17,15 @@ namespace CommunityToolkit.Maui.Core;
 [SupportedOSPlatform("Tizen6.5")]
 public static class AppBuilderExtensions
 {
+	static readonly WeakEventManager weakEventManager = new();
+
+	// This is an internal event used by Unit Tests to confirm when the code enters the `if (Options.ShouldUseStatusBarBehaviorOnAndroidModalPage)` block
+	internal static event EventHandler ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted
+	{
+		add => weakEventManager.AddEventHandler(value);
+		remove => weakEventManager.RemoveEventHandler(value);
+	}
+
 	/// <summary>
 	/// Initializes the .NET MAUI Community Toolkit Core Library
 	/// </summary>
@@ -27,9 +36,10 @@ public static MauiAppBuilder UseMauiCommunityToolkitCore(this MauiAppBuilder bui
 	{
 		options?.Invoke(new Options());
 
-#if ANDROID
         if (Options.ShouldUseStatusBarBehaviorOnAndroidModalPage)
         {
+
+#if ANDROID
             builder.Services.AddSingleton<IDialogFragmentService, DialogFragmentService>();
 
 			builder.ConfigureLifecycleEvents(static lifecycleBuilder =>
@@ -58,9 +68,11 @@ public static MauiAppBuilder UseMauiCommunityToolkitCore(this MauiAppBuilder bui
 					});
 				});
 			});
-        }
 #endif
 
+			weakEventManager.HandleEvent(null, EventArgs.Empty, nameof(ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted));
+		}
+
 		return builder;
 	}
 }

src/CommunityToolkit.Maui.UnitTests/Extensions/AppBuilderExtensionsTests.cs

@@ -3,58 +3,117 @@
 
 namespace CommunityToolkit.Maui.UnitTests.Extensions;
 
+#pragma warning disable CA1416
 public class AppBuilderExtensionsTests : BaseTest
 {
     [Fact]
     public void ConfirmOptionsDefaultValue()
     {
+		// Arrange
+		bool isAndroidDialogFragmentServiceInitialized = false;
+		Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted += HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+
 		// Assert
 		Assert.True(Core.Options.ShouldUseStatusBarBehaviorOnAndroidModalPage);
         Assert.False(Options.ShouldEnableSnackbarOnWindows);
         Assert.False(Options.ShouldSuppressExceptionsInAnimations);
         Assert.False(Options.ShouldSuppressExceptionsInBehaviors);
         Assert.False(Options.ShouldSuppressExceptionsInConverters);
-    }
-    
-    [Fact]
+		Assert.False(isAndroidDialogFragmentServiceInitialized);
+
+		Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted -= HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+
+		void HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted(object? sender, EventArgs e)
+		{
+			Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted -= HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+			isAndroidDialogFragmentServiceInitialized = true;
+		}
+	}
+
+	[Fact]
+	public void ConfirmDefaultValueRemainWhenOptionsNull()
+	{
+		// Arrange
+		var builder = MauiApp.CreateBuilder();
+		bool isAndroidDialogFragmentServiceInitialized = false;
+
+		Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted += HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+
+		// Act
+		builder.UseMauiCommunityToolkit(null);
+
+		// Assert
+		Assert.True(Core.Options.ShouldUseStatusBarBehaviorOnAndroidModalPage);
+		Assert.False(Options.ShouldEnableSnackbarOnWindows);
+		Assert.False(Options.ShouldSuppressExceptionsInAnimations);
+		Assert.False(Options.ShouldSuppressExceptionsInBehaviors);
+		Assert.False(Options.ShouldSuppressExceptionsInConverters);
+		Assert.True(isAndroidDialogFragmentServiceInitialized);
+
+		void HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted(object? sender, EventArgs e)
+		{
+			Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted -= HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+			isAndroidDialogFragmentServiceInitialized = true;
+		}
+	}
+
+
+	[Fact]
     public void UseMauiCommunityToolkit_ShouldRegisterServices()
     {
         // Arrange
         var builder = MauiApp.CreateBuilder();
+		bool isAndroidDialogFragmentServiceInitialized = false;
+		Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted += HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
 
-        // Act
-#pragma warning disable CA1416
-        builder.UseMauiCommunityToolkit();
-#pragma warning restore CA1416
+		// Act
+		builder.UseMauiCommunityToolkit();
 
         // Assert
         var serviceProvider = builder.Services.BuildServiceProvider();
         Assert.NotNull(serviceProvider.GetService<IPopupService>());
-    }
+		Assert.True(isAndroidDialogFragmentServiceInitialized);
+
+		void HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted(object? sender, EventArgs e)
+		{
+			Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted -= HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+			isAndroidDialogFragmentServiceInitialized = true;
+		}
+	}
 
     [Fact]
     public void UseMauiCommunityToolkit_ShouldAssignValues()
     {
         // Arrange
         var builder = MauiApp.CreateBuilder();
+		bool isAndroidDialogFragmentServiceInitialized = false;
+		Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted += HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
 
-        // Act
-#pragma warning disable CA1416
-        builder.UseMauiCommunityToolkit(options =>
+		// Act
+		builder.UseMauiCommunityToolkit(options =>
         {
             options.SetShouldEnableSnackbarOnWindows(!Options.ShouldEnableSnackbarOnWindows);
-            options.SetShouldUseStatusBarBehaviorOnAndroidModalPage(!Core.Options.ShouldUseStatusBarBehaviorOnAndroidModalPage);
             options.SetShouldSuppressExceptionsInAnimations(!Options.ShouldSuppressExceptionsInAnimations);
             options.SetShouldSuppressExceptionsInBehaviors(!Options.ShouldSuppressExceptionsInBehaviors);
             options.SetShouldSuppressExceptionsInConverters(!Options.ShouldSuppressExceptionsInConverters);
+            options.SetShouldUseStatusBarBehaviorOnAndroidModalPage(!Core.Options.ShouldUseStatusBarBehaviorOnAndroidModalPage);
         });
-#pragma warning restore CA1416
 
         // Assert
         Assert.False(Core.Options.ShouldUseStatusBarBehaviorOnAndroidModalPage);
         Assert.True(Options.ShouldEnableSnackbarOnWindows);
         Assert.True(Options.ShouldSuppressExceptionsInAnimations);
         Assert.True(Options.ShouldSuppressExceptionsInBehaviors);
         Assert.True(Options.ShouldSuppressExceptionsInConverters);
-    }
-}
+		Assert.False(isAndroidDialogFragmentServiceInitialized);
+
+		Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted -= HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+
+		void HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted(object? sender, EventArgs e)
+		{
+			Core.AppBuilderExtensions.ShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted -= HandleShouldUseStatusBarBehaviorOnAndroidModalPageOptionCompleted;
+			isAndroidDialogFragmentServiceInitialized = true;
+		}
+	}
+}
+#pragma warning restore CA1416