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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.ObjectModel;
using System.Net.Http;
using System.Web.Http.Controllers;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Tracing.Tracers
{
public class HttpActionSelectorTracerTest
{
private Mock<HttpActionDescriptor> _mockActionDescriptor;
private HttpActionContext _actionContext;
private HttpControllerContext _controllerContext;
private HttpControllerDescriptor _controllerDescriptor;
public HttpActionSelectorTracerTest()
{
_mockActionDescriptor = new Mock<HttpActionDescriptor>() { CallBase = true };
_mockActionDescriptor.Setup(a => a.ActionName).Returns("test");
_mockActionDescriptor.Setup(a => a.GetParameters()).Returns(new Collection<HttpParameterDescriptor>(new HttpParameterDescriptor[0]));
_controllerDescriptor = new HttpControllerDescriptor(new HttpConfiguration(), "controller", typeof(ApiController));
_controllerContext = ContextUtil.CreateControllerContext(request: new HttpRequestMessage());
_controllerContext.ControllerDescriptor = _controllerDescriptor;
_actionContext = ContextUtil.CreateActionContext(_controllerContext, actionDescriptor: _mockActionDescriptor.Object);
}
[Fact]
public void SelectAction_Traces_And_Returns_ActionDescriptor_Tracer()
{
// Arrange
TestTraceWriter traceWriter = new TestTraceWriter();
Mock<IHttpActionSelector> mockSelector = new Mock<IHttpActionSelector>();
mockSelector.Setup(s => s.SelectAction(_controllerContext)).Returns(_mockActionDescriptor.Object);
HttpActionSelectorTracer tracer = new HttpActionSelectorTracer(mockSelector.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(_actionContext.Request, TraceCategories.ActionCategory, TraceLevel.Info) { Kind = TraceKind.Begin },
new TraceRecord(_actionContext.Request, TraceCategories.ActionCategory, TraceLevel.Info) { Kind = TraceKind.End }
};
// Act
HttpActionDescriptor selectedActionDescriptor = ((IHttpActionSelector)tracer).SelectAction(_controllerContext);
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.IsAssignableFrom<HttpActionDescriptorTracer>(selectedActionDescriptor);
}
[Fact]
public void SelectAction_Traces_And_Throws_Exception_Thrown_From_Inner()
{
// Arrange
TestTraceWriter traceWriter = new TestTraceWriter();
Mock<IHttpActionSelector> mockSelector = new Mock<IHttpActionSelector>();
InvalidOperationException exception = new InvalidOperationException();
mockSelector.Setup(s => s.SelectAction(_controllerContext)).Throws(exception);
HttpActionSelectorTracer tracer = new HttpActionSelectorTracer(mockSelector.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(_actionContext.Request, TraceCategories.ActionCategory, TraceLevel.Info) { Kind = TraceKind.Begin },
new TraceRecord(_actionContext.Request, TraceCategories.ActionCategory, TraceLevel.Error) { Kind = TraceKind.End }
};
// Act
Exception thrown = Assert.Throws<InvalidOperationException>(() => ((IHttpActionSelector)tracer).SelectAction(_controllerContext));
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.Same(exception, thrown);
Assert.Same(exception, traceWriter.Traces[1].Exception);
}
}
}
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