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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.IO;
using System.Web.Hosting;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class HttpHandlerUtilTest
{
[Fact]
public void WrapForServerExecute_BeginProcessRequest_DelegatesCorrectly()
{
// Arrange
IAsyncResult expectedResult = new Mock<IAsyncResult>().Object;
AsyncCallback cb = delegate { };
HttpContext httpContext = GetHttpContext();
Mock<IHttpAsyncHandler> mockHttpHandler = new Mock<IHttpAsyncHandler>();
mockHttpHandler.Setup(o => o.BeginProcessRequest(httpContext, cb, "extraData")).Returns(expectedResult);
IHttpAsyncHandler wrapper = (IHttpAsyncHandler)HttpHandlerUtil.WrapForServerExecute(mockHttpHandler.Object);
// Act
IAsyncResult actualResult = wrapper.BeginProcessRequest(httpContext, cb, "extraData");
// Assert
Assert.Equal(expectedResult, actualResult);
}
[Fact]
public void WrapForServerExecute_EndProcessRequest_DelegatesCorrectly()
{
// Arrange
IAsyncResult asyncResult = new Mock<IAsyncResult>().Object;
HttpContext httpContext = GetHttpContext();
Mock<IHttpAsyncHandler> mockHttpHandler = new Mock<IHttpAsyncHandler>();
mockHttpHandler.Setup(o => o.EndProcessRequest(asyncResult)).Verifiable();
IHttpAsyncHandler wrapper = (IHttpAsyncHandler)HttpHandlerUtil.WrapForServerExecute(mockHttpHandler.Object);
// Act
wrapper.EndProcessRequest(asyncResult);
// Assert
mockHttpHandler.Verify();
}
[Fact]
public void WrapForServerExecute_ProcessRequest_DelegatesCorrectly()
{
// Arrange
HttpContext httpContext = GetHttpContext();
Mock<IHttpHandler> mockHttpHandler = new Mock<IHttpHandler>();
mockHttpHandler.Setup(o => o.ProcessRequest(httpContext)).Verifiable();
IHttpHandler wrapper = HttpHandlerUtil.WrapForServerExecute(mockHttpHandler.Object);
// Act
wrapper.ProcessRequest(httpContext);
// Assert
mockHttpHandler.Verify();
}
[Fact]
public void WrapForServerExecute_ProcessRequest_PropagatesExceptionsIfNotHttpException()
{
// Arrange
HttpContext httpContext = GetHttpContext();
Mock<IHttpHandler> mockHttpHandler = new Mock<IHttpHandler>();
mockHttpHandler.Setup(o => o.ProcessRequest(httpContext)).Throws(new InvalidOperationException("Some exception."));
IHttpHandler wrapper = HttpHandlerUtil.WrapForServerExecute(mockHttpHandler.Object);
// Act & assert
Assert.Throws<InvalidOperationException>(
delegate { wrapper.ProcessRequest(httpContext); },
@"Some exception.");
}
[Fact]
public void WrapForServerExecute_ProcessRequest_PropagatesHttpExceptionIfStatusCode500()
{
// Arrange
HttpContext httpContext = GetHttpContext();
Mock<IHttpHandler> mockHttpHandler = new Mock<IHttpHandler>();
mockHttpHandler.Setup(o => o.ProcessRequest(httpContext)).Throws(new HttpException(500, "Some exception."));
IHttpHandler wrapper = HttpHandlerUtil.WrapForServerExecute(mockHttpHandler.Object);
// Act & assert
Assert.ThrowsHttpException(
delegate { wrapper.ProcessRequest(httpContext); },
@"Some exception.",
500);
}
[Fact]
public void WrapForServerExecute_ProcessRequest_WrapsHttpExceptionIfStatusCodeNot500()
{
// Arrange
HttpContext httpContext = GetHttpContext();
Mock<IHttpHandler> mockHttpHandler = new Mock<IHttpHandler>();
mockHttpHandler.Setup(o => o.ProcessRequest(httpContext)).Throws(new HttpException(404, "Some exception."));
IHttpHandler wrapper = HttpHandlerUtil.WrapForServerExecute(mockHttpHandler.Object);
// Act & assert
HttpException outerException = Assert.ThrowsHttpException(
delegate { wrapper.ProcessRequest(httpContext); },
@"Execution of the child request failed. Please examine the InnerException for more information.",
500);
HttpException innerException = outerException.InnerException as HttpException;
Assert.NotNull(innerException);
Assert.Equal(404, innerException.GetHttpCode());
Assert.Equal("Some exception.", innerException.Message);
}
[Fact]
public void WrapForServerExecute_ReturnsIHttpAsyncHandler()
{
// Arrange
IHttpAsyncHandler httpHandler = new Mock<IHttpAsyncHandler>().Object;
// Act
IHttpHandler wrapper = HttpHandlerUtil.WrapForServerExecute(httpHandler);
// Assert
Assert.True(wrapper is IHttpAsyncHandler);
}
[Fact]
public void WrapForServerExecute_ReturnsIHttpHandler()
{
// Arrange
IHttpHandler httpHandler = new Mock<IHttpHandler>().Object;
// Act
IHttpHandler wrapper = HttpHandlerUtil.WrapForServerExecute(httpHandler);
// Assert
Assert.False(wrapper is IHttpAsyncHandler);
}
private static HttpContext GetHttpContext()
{
return new HttpContext(new SimpleWorkerRequest("/", "/", "Page", "Query", TextWriter.Null));
}
}
}
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