Add tests

Author: RehanSaeed

Source/Boxed.AspNetCore/ApplicationBuilderExtensions.cs

@@ -41,8 +41,8 @@ public static IApplicationBuilder UseHttpException(
     /// </summary>
     /// <param name="application">The application builder.</param>
     /// <returns>The same application builder.</returns>
-    public static IApplicationBuilder UseRequestCancelled(this IApplicationBuilder application) =>
-        UseRequestCancelled(application, null);
+    public static IApplicationBuilder UseRequestCanceled(this IApplicationBuilder application) =>
+        UseRequestCanceled(application, null);
 
     /// <summary>
     /// Handles <see cref="OperationCanceledException"/> caused by the HTTP request being aborted, then shortcuts and
@@ -52,7 +52,7 @@ public static IApplicationBuilder UseRequestCancelled(this IApplicationBuilder a
     /// <param name="application">The application builder.</param>
     /// <param name="configureOptions">The middleware options.</param>
     /// <returns>The same application builder.</returns>
-    public static IApplicationBuilder UseRequestCancelled(
+    public static IApplicationBuilder UseRequestCanceled(
         this IApplicationBuilder application,
         Action<RequestCanceledMiddlewareOptions>? configureOptions)
     {

Source/Boxed.AspNetCore/LoggerExtensions.cs

@@ -17,6 +17,6 @@ internal static partial class LoggerExtensions
     [LoggerMessage(
         EventId = 4001,
         Level = LogLevel.Information,
-        Message = "Request was cancelled.")]
-    public static partial void RequestCancelled(this ILogger logger);
+        Message = "Request was canceled.")]
+    public static partial void RequestCanceled(this ILogger logger);
 }

Source/Boxed.AspNetCore/Middleware/RequestCanceledMiddleware.cs

@@ -41,7 +41,7 @@ public async Task InvokeAsync(HttpContext context, RequestDelegate next)
         catch (OperationCanceledException operationCanceledException)
         when (operationCanceledException.CancellationToken == context.RequestAborted)
         {
-            this.logger.RequestCancelled();
+            this.logger.RequestCanceled();
             context.Response.StatusCode = this.options.StatusCode;
         }
     }

Tests/Boxed.AspNetCore.Test/Middleware/RequestCanceledMiddlewareTest.cs

@@ -0,0 +1,77 @@
+namespace Boxed.AspNetCore.Test.Middleware;
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Boxed.AspNetCore.Middleware;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+using Moq;
+using Xunit;
+
+public class RequestCanceledMiddlewareTest
+{
+    private readonly DefaultHttpContext context;
+    private RequestDelegate next;
+
+    public RequestCanceledMiddlewareTest()
+    {
+        this.context = new DefaultHttpContext();
+        this.next = x => Task.CompletedTask;
+    }
+
+    [Fact]
+    public void InvokeAsync_NullContext_ThrowsArgumentNullException() =>
+        Assert.ThrowsAsync<ArgumentNullException>(() => new ServerTimingMiddleware().InvokeAsync(null!, this.next));
+
+    [Fact]
+    public void InvokeAsync_NullNext_ThrowsArgumentNullException() =>
+        Assert.ThrowsAsync<ArgumentNullException>(() => new ServerTimingMiddleware().InvokeAsync(this.context, null!));
+
+    [Fact]
+    public async Task InvokeAsync_RequestNotCanceled_RunsNextMiddlewareAsync()
+    {
+        await new RequestCanceledMiddleware(
+            new RequestCanceledMiddlewareOptions(),
+            new Mock<ILogger<RequestCanceledMiddleware>>().Object)
+            .InvokeAsync(this.context, this.next)
+            .ConfigureAwait(false);
+
+        Assert.Equal(200, this.context.Response.StatusCode);
+    }
+
+    [Fact]
+    public async Task InvokeAsync_OperationCanceledExceptionThrownNotCanceled_RunsNextMiddlewareAsync()
+    {
+        using var cancellationTokenSource1 = new CancellationTokenSource();
+        using var cancellationTokenSource2 = new CancellationTokenSource();
+        cancellationTokenSource2.Cancel();
+        this.context.RequestAborted = cancellationTokenSource1.Token;
+        this.next = x => Task.FromException(new OperationCanceledException(cancellationTokenSource2.Token));
+
+        await Assert
+            .ThrowsAsync<OperationCanceledException>(() =>
+                new RequestCanceledMiddleware(
+                    new RequestCanceledMiddlewareOptions(),
+                    new Mock<ILogger<RequestCanceledMiddleware>>().Object)
+                    .InvokeAsync(this.context, this.next))
+            .ConfigureAwait(false);
+    }
+
+    [Fact]
+    public async Task InvokeAsync_RequestCanceled_Returns499ClientClosedRequestAsync()
+    {
+        using var cancellationTokenSource = new CancellationTokenSource();
+        cancellationTokenSource.Cancel();
+        this.context.RequestAborted = cancellationTokenSource.Token;
+        this.next = x => Task.FromCanceled(cancellationTokenSource.Token);
+
+        await new RequestCanceledMiddleware(
+            new RequestCanceledMiddlewareOptions(),
+            new Mock<ILogger<RequestCanceledMiddleware>>().Object)
+            .InvokeAsync(this.context, this.next)
+            .ConfigureAwait(false);
+
+        Assert.Equal(RequestCanceledMiddlewareOptions.ClientClosedRequest, this.context.Response.StatusCode);
+    }
+}