Some unit tests

Author: jamescrosswell

src/Sentry.Maui/Internal/MauiEventsBinder.cs

@@ -416,7 +416,7 @@ private void OnElementOnFocused(object? sender, FocusEventArgs _) =>
     private void OnElementOnUnfocused(object? sender, FocusEventArgs _) =>
         _hub.AddBreadcrumbForEvent(_options, sender, nameof(VisualElement.Unfocused), SystemType, RenderingCategory);
 
-    private void OnElementLoaded(object? sender, EventArgs _)
+    internal void OnElementLoaded(object? sender, EventArgs _)
     {
         if (sender is not VisualElement element)
         {

test/Sentry.Maui.Tests/MauiEventsBinderTests.VisualElement.cs

@@ -1,5 +1,9 @@
 using Sentry.Maui.Internal;
 using Sentry.Maui.Tests.Mocks;
+using Application = Android.App.Application;
+#if __ANDROID__
+using View = Android.Views.View;
+#endif
 
 namespace Sentry.Maui.Tests;
 
@@ -46,4 +50,34 @@ public void VisualElement_UnbindFocusEvents_DoesNotAddBreadcrumb(string eventNam
         // Assert
         Assert.Single(_fixture.Scope.Breadcrumbs);
     }
+
+    [Fact]
+    public void OnElementLoaded_SenderIsNotVisualElement_LogsDebugAndReturns()
+    {
+        // Arrange
+        var element = new MockElement("element");
+
+        // Act
+        _fixture.Binder.OnElementLoaded(element, EventArgs.Empty);
+
+        // Assert
+        _fixture.Options.DiagnosticLogger.Received(1).LogDebug("OnElementLoaded: sender is not a VisualElement");
+    }
+
+    [Fact]
+    public void OnElementLoaded_HandlerIsNull_LogsDebugAndReturns()
+    {
+        // Arrange
+        var element = new MockVisualElement("element")
+        {
+            Handler = null
+        };
+
+        // Act
+        _fixture.Binder.OnElementLoaded(element, EventArgs.Empty);
+
+        // Assert
+        _fixture.Options.DiagnosticLogger.Received(1).LogDebug("OnElementLoaded: handler is null");
+    }
+
 }

test/Sentry.Maui.Tests/MauiEventsBinderTests.cs

@@ -18,6 +18,10 @@ public Fixture()
             hub.When(h => h.ConfigureScope(Arg.Any<Action<Scope>>()))
                 .Do(c => c.Arg<Action<Scope>>()(Scope));
 
+            Options.Debug = true;
+            var logger = Substitute.For<IDiagnosticLogger>();
+            logger.IsEnabled(Arg.Any<SentryLevel>()).Returns(true);
+            Options.DiagnosticLogger = logger;
             var options = Microsoft.Extensions.Options.Options.Create(Options);
             Binder = new MauiEventsBinder(
                 hub,