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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 Moq;
using Xunit;
namespace System.Web.Http.Tracing.Tracers
{
public class HttpControllerDescriptorTracerTest
{
private static readonly HttpControllerContext _controllerContext = ContextUtil.CreateControllerContext(instance: _controller);
private static readonly HttpRequestMessage _request = _controllerContext.Request;
private static readonly IHttpController _controller = new Mock<IHttpController>().Object;
private static readonly InvalidOperationException _exception = new InvalidOperationException("test");
[Fact]
public void CreateController_Invokes_Inner_And_Traces()
{
// Arrange
Mock<HttpControllerDescriptor> mockControllerDescriptor = CreateMockControllerDescriptor();
mockControllerDescriptor.Setup(b => b.CreateController(It.IsAny<HttpRequestMessage>())).Returns(_controller);
TestTraceWriter traceWriter = new TestTraceWriter();
HttpControllerDescriptorTracer tracer = GetHttpControllerDescriptorTracer(mockControllerDescriptor.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Info) { Kind = TraceKind.Begin, Operation = "CreateController" },
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Info) { Kind = TraceKind.End, Operation = "CreateController" }
};
// Act
IHttpController controller = tracer.CreateController(_request);
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.IsAssignableFrom<HttpControllerTracer>(controller);
}
[Fact]
public void CreateController_Throws_And_Traces_When_Inner_Throws()
{
// Arrange
Mock<HttpControllerDescriptor> mockControllerDescriptor = CreateMockControllerDescriptor();
mockControllerDescriptor.Setup(b => b.CreateController(It.IsAny<HttpRequestMessage>())).Throws(_exception);
TestTraceWriter traceWriter = new TestTraceWriter();
HttpControllerDescriptorTracer tracer = GetHttpControllerDescriptorTracer(mockControllerDescriptor.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Info) { Kind = TraceKind.Begin, Operation = "CreateController" },
new TraceRecord(_request, TraceCategories.ControllersCategory, TraceLevel.Error) { Kind = TraceKind.End, Operation = "CreateController" }
};
// Act
Exception thrown = Assert.Throws<InvalidOperationException>(() => tracer.CreateController(_request));
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.Same(_exception, thrown);
Assert.Same(_exception, traceWriter.Traces[1].Exception);
}
private static HttpControllerDescriptorTracer GetHttpControllerDescriptorTracer(HttpControllerDescriptor controllerDescriptor, ITraceWriter traceWriter)
{
return new HttpControllerDescriptorTracer(
configuration: new HttpConfiguration(),
controllerName: "AnyController",
controllerType: _controller.GetType(),
innerDescriptor: controllerDescriptor,
traceWriter: traceWriter);
}
private static Mock<HttpControllerDescriptor> CreateMockControllerDescriptor()
{
Mock<HttpControllerDescriptor> mockControllerDescriptor = new Mock<HttpControllerDescriptor>(_controllerContext.Configuration, "AnyController", _controller.GetType());
return mockControllerDescriptor;
}
}
}
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