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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Net.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Dispatcher;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Tracing.Tracers
{
public class HttpControllerSelectorTracerTest
{
private static readonly IHttpController _controller = new Mock<IHttpController>().Object;
private static readonly HttpControllerContext _controllerContext = ContextUtil.CreateControllerContext(instance: _controller);
private static readonly HttpRequestMessage _request = _controllerContext.Request;
[Fact]
public void SelectController_Invokes_Inner_And_Traces()
{
// Arrange
Mock<HttpControllerDescriptor> mockControllerDescriptor = new Mock<HttpControllerDescriptor>(_controllerContext.Configuration, "AnyController", _controller.GetType());
Mock<IHttpControllerSelector> mockSelector = new Mock<IHttpControllerSelector>();
mockSelector.Setup(b => b.SelectController(It.IsAny<HttpRequestMessage>())).Returns(mockControllerDescriptor.Object);
TestTraceWriter traceWriter = new TestTraceWriter();
HttpControllerSelectorTracer tracer = new HttpControllerSelectorTracer(mockSelector.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Info) { Kind = TraceKind.Begin, Operation = "SelectController" },
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Info) { Kind = TraceKind.End, Operation = "SelectController" }
};
// Act
HttpControllerDescriptor controllerDescriptor = ((IHttpControllerSelector)tracer).SelectController(_request);
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.IsAssignableFrom<HttpControllerDescriptorTracer>(controllerDescriptor);
}
[Fact]
public void SelectController_Throws_And_Traces_When_Inner_Throws()
{
// Arrange
Mock<IHttpControllerSelector> mockSelector = new Mock<IHttpControllerSelector>();
InvalidOperationException exception = new InvalidOperationException("test");
mockSelector.Setup(b => b.SelectController(It.IsAny<HttpRequestMessage>())).Throws(exception);
TestTraceWriter traceWriter = new TestTraceWriter();
HttpControllerSelectorTracer tracer = new HttpControllerSelectorTracer(mockSelector.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Info) { Kind = TraceKind.Begin, Operation = "SelectController" },
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Error) { Kind = TraceKind.End, Operation = "SelectController" }
};
// Act
Exception thrown = Assert.Throws<InvalidOperationException>(() => ((IHttpControllerSelector)tracer).SelectController(_request));
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.Same(exception, thrown);
Assert.Same(exception, traceWriter.Traces[1].Exception);
}
}
}
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