Add unit test for TaskCanceledException.

Author: ariellourenco

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

@@ -59,6 +59,25 @@ await Assert
             .ConfigureAwait(false);
     }
 
+    [Fact]
+    public async Task InvokeAsync_TaskCanceledExceptionThrownNotCanceled_RunsNextMiddlewareAsync()
+    {
+        // Arrange
+        using var cancellationTokenSource1 = new CancellationTokenSource();
+        using var cancellationTokenSource2 = new CancellationTokenSource();
+
+        cancellationTokenSource2.Cancel();
+
+        this.context.RequestAborted = cancellationTokenSource1.Token;
+        this.next = x => Task.FromException(new TaskCanceledException(Task.FromCanceled(cancellationTokenSource2.Token)));
+
+        // Act & Assert
+        await Assert.ThrowsAsync<TaskCanceledException>(() =>
+            new RequestCanceledMiddleware(this.next, new RequestCanceledMiddlewareOptions(), new Mock<ILogger<RequestCanceledMiddleware>>().Object)
+                .InvokeAsync(this.context))
+            .ConfigureAwait(false);
+    }
+
     [Fact]
     public async Task InvokeAsync_RequestCanceled_Returns499ClientClosedRequestAsync()
     {