feat: Enable constructor injection

src/bunit.core/Rendering/BunitComponentActivator.cs

@@ -7,10 +7,13 @@ internal class BunitComponentActivator : IComponentActivator
 	private readonly ComponentFactoryCollection factories;
 	private readonly IComponentActivator componentActivator;
 
-	public BunitComponentActivator(ComponentFactoryCollection factories, IComponentActivator? externalComponentActivator)
+	public BunitComponentActivator(
+		IServiceProvider serviceProvider,
+		ComponentFactoryCollection factories,
+		IComponentActivator? externalComponentActivator)
 	{
 		this.factories = factories ?? throw new ArgumentNullException(nameof(factories));
-		this.componentActivator = externalComponentActivator ?? DefaultComponentActivator.Instance;
+		this.componentActivator = externalComponentActivator ?? new DefaultComponentActivator(serviceProvider);
 	}
 
 	public IComponent CreateInstance([DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)] Type componentType)
@@ -43,12 +46,17 @@ public IComponent CreateInstance([DynamicallyAccessedMembers(DynamicallyAccessed
 
 	private sealed class DefaultComponentActivator : IComponentActivator
 	{
-		public static IComponentActivator Instance { get; } = new DefaultComponentActivator();
+		private readonly IServiceProvider serviceProvider;
+
+		public DefaultComponentActivator(IServiceProvider serviceProvider)
+		{
+			this.serviceProvider = serviceProvider;
+		}
 
 		/// <inheritdoc />
 		public IComponent CreateInstance([DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)] Type componentType)
-		{			
-			return (IComponent)Activator.CreateInstance(componentType)!;
+		{
+			return (IComponent)ActivatorUtilities.CreateInstance(serviceProvider, componentType);
 		}
 	}
 }

src/bunit.core/Rendering/TestRenderer.cs

@@ -79,7 +79,7 @@ public TestRenderer(IRenderedComponentActivator renderedComponentActivator, Test
 	/// Initializes a new instance of the <see cref="TestRenderer"/> class.
 	/// </summary>
 	public TestRenderer(IRenderedComponentActivator renderedComponentActivator, TestServiceProvider services, ILoggerFactory loggerFactory)
-		: base(services, loggerFactory, new BunitComponentActivator(services.GetRequiredService<ComponentFactoryCollection>(), null))
+		: base(services, loggerFactory, new BunitComponentActivator(services, services.GetRequiredService<ComponentFactoryCollection>(), null))
 	{
 		logger = loggerFactory.CreateLogger<TestRenderer>();
 		this.activator = renderedComponentActivator;
@@ -89,7 +89,7 @@ public TestRenderer(IRenderedComponentActivator renderedComponentActivator, Test
 	/// Initializes a new instance of the <see cref="TestRenderer"/> class.
 	/// </summary>
 	public TestRenderer(IRenderedComponentActivator renderedComponentActivator, TestServiceProvider services, ILoggerFactory loggerFactory, IComponentActivator componentActivator)
-		: base(services, loggerFactory, new BunitComponentActivator(services.GetRequiredService<ComponentFactoryCollection>(), componentActivator))
+		: base(services, loggerFactory, new BunitComponentActivator(services, services.GetRequiredService<ComponentFactoryCollection>(), componentActivator))
 	{
 		logger = loggerFactory.CreateLogger<TestRenderer>();
 		this.activator = renderedComponentActivator;

tests/bunit.testassets/SampleComponents/ConstructorInjectionComponent.cs

@@ -0,0 +1,13 @@
+using Microsoft.JSInterop;
+
+namespace Bunit.TestAssets.SampleComponents;
+
+public class ConstructorInjectionComponent : ComponentBase
+{
+	public IJSRuntime JSRuntime { get; }
+
+	public ConstructorInjectionComponent(IJSRuntime jsRuntime)
+	{
+		JSRuntime = jsRuntime;
+	}
+}

tests/bunit.web.tests/Rendering/RenderedComponentTest.cs

@@ -57,4 +57,14 @@ public void Test020()
 
 		Should.Throw<ComponentDisposedException>(() => target.Instance);
 	}
+	#if NET9_0_OR_GREATER
+
+	[Fact(DisplayName = "Component with constructor dependencies is resolved when rendered")]
+	public void Test021()
+	{
+		var cut = RenderComponent<ConstructorInjectionComponent>();
+
+		cut.Instance.JSRuntime.ShouldNotBeNull();
+	}
+	#endif
 }