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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Threading.Tasks;
using System.Web.Http.Controllers;
using System.Web.Http.Filters;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Tracing.Tracers
{
public class HttpActionDescriptorTracerTest
{
// This test verifies only one kind of filter is wrapped, proving
// the static FilterTracer.CreateFilterTracer was called from GetFilterPipeline.
// Deeper testing of FilterTracer.CreateFilterTracer is in FilterTracerTest.
[Fact]
public void GetFilterPipeline_Returns_Wrapped_Filters()
{
// Arrange
Mock<IFilter> mockFilter = new Mock<IFilter>();
FilterInfo filter = new FilterInfo(mockFilter.Object, FilterScope.Global);
Collection<FilterInfo> filterCollection = new Collection<FilterInfo>(new FilterInfo[] { filter });
Mock<HttpActionDescriptor> mockActionDescriptor = new Mock<HttpActionDescriptor>() { CallBase = true };
mockActionDescriptor.Setup(a => a.ActionName).Returns("test");
mockActionDescriptor.Setup(a => a.GetFilterPipeline()).Returns(filterCollection);
HttpControllerContext controllerContext = ContextUtil.CreateControllerContext();
controllerContext.ControllerDescriptor = new HttpControllerDescriptor(controllerContext.Configuration, "test", typeof(ApiController));
HttpActionDescriptorTracer tracer = new HttpActionDescriptorTracer(controllerContext, mockActionDescriptor.Object, new TestTraceWriter());
// Act
Collection<FilterInfo> wrappedFilterCollection = tracer.GetFilterPipeline();
// Assert
Assert.IsType<FilterTracer>(wrappedFilterCollection[0].Instance);
}
// This test verifies only one kind of filter is wrapped, proving
// the static FilterTracer.CreateFilterTracer was called from GetFilterPipeline.
// Deeper testing of FilterTracer.CreateFilterTracer is in FilterTracerTest.
[Fact]
public void GetFilters_Returns_Wrapped_IFilters()
{
// Arrange
Mock<IFilter> mockFilter = new Mock<IFilter>();
Collection<IFilter> filters = new Collection<IFilter>(new IFilter[] { mockFilter.Object });
Mock<HttpActionDescriptor> mockActionDescriptor = new Mock<HttpActionDescriptor>() { CallBase = true };
mockActionDescriptor.Setup(a => a.ActionName).Returns("test");
mockActionDescriptor.Setup(a => a.GetFilters()).Returns(filters);
HttpControllerContext controllerContext = ContextUtil.CreateControllerContext();
controllerContext.ControllerDescriptor = new HttpControllerDescriptor(controllerContext.Configuration, "test", typeof(ApiController));
HttpActionDescriptorTracer tracer = new HttpActionDescriptorTracer(controllerContext, mockActionDescriptor.Object, new TestTraceWriter());
// Act
IFilter[] wrappedFilters = tracer.GetFilters().ToArray();
// Assert
Assert.IsType<FilterTracer>(wrappedFilters[0]);
}
[Fact]
public void ExecuteAsync_Invokes_Inner_ExecuteAsync()
{
// Arrange
bool executeCalled = false;
Mock<HttpActionDescriptor> mockActionDescriptor = new Mock<HttpActionDescriptor>() { CallBase = true };
mockActionDescriptor.Setup(a => a.ActionName).Returns("test");
mockActionDescriptor.Setup(
a => a.ExecuteAsync(It.IsAny<HttpControllerContext>(), It.IsAny<IDictionary<string, object>>())).Callback(() => executeCalled = true);
HttpControllerContext controllerContext = ContextUtil.CreateControllerContext();
controllerContext.ControllerDescriptor = new HttpControllerDescriptor(controllerContext.Configuration, "test", typeof(ApiController));
IDictionary<string, object> arguments = new Dictionary<string, object>();
HttpActionDescriptorTracer tracer = new HttpActionDescriptorTracer(controllerContext, mockActionDescriptor.Object, new TestTraceWriter());
// Act
tracer.ExecuteAsync(controllerContext, arguments);
// Assert
Assert.True(executeCalled);
}
[Fact]
public void ExecuteAsync_Traces()
{
// Arrange
Mock<HttpActionDescriptor> mockActionDescriptor = new Mock<HttpActionDescriptor>() { CallBase = true };
mockActionDescriptor.Setup(a => a.ActionName).Returns("test");
mockActionDescriptor.Setup(a => a.ExecuteAsync(It.IsAny<HttpControllerContext>(), It.IsAny<IDictionary<string, object>>()))
.Returns(TaskHelpers.FromResult<object>(null));
HttpControllerContext controllerContext = ContextUtil.CreateControllerContext();
controllerContext.ControllerDescriptor = new HttpControllerDescriptor(controllerContext.Configuration, "test", typeof(ApiController));
IDictionary<string, object> arguments = new Dictionary<string, object>();
TestTraceWriter traceWriter = new TestTraceWriter();
HttpActionDescriptorTracer tracer = new HttpActionDescriptorTracer(controllerContext, mockActionDescriptor.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(controllerContext.Request, TraceCategories.ActionCategory, TraceLevel.Info) { Kind = TraceKind.Begin, Operation = "ExecuteAsync" },
new TraceRecord(controllerContext.Request, TraceCategories.ActionCategory, TraceLevel.Info) { Kind = TraceKind.End }
};
// Act
var result = tracer.ExecuteAsync(controllerContext, arguments);
// Assert
result.WaitUntilCompleted();
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
}
[Fact]
public void ExecuteAsync_Throws_What_Inner_Throws_And_Traces()
{
// Arrange
Mock<HttpActionDescriptor> mockActionDescriptor = new Mock<HttpActionDescriptor>() { CallBase = true };
InvalidOperationException exception = new InvalidOperationException("test");
mockActionDescriptor.Setup(
a => a.ExecuteAsync(It.IsAny<HttpControllerContext>(), It.IsAny<IDictionary<string, object>>())).Throws(exception);
mockActionDescriptor.Setup(a => a.ActionName).Returns("test");
HttpControllerContext controllerContext = ContextUtil.CreateControllerContext();
controllerContext.ControllerDescriptor = new HttpControllerDescriptor(controllerContext.Configuration, "test", typeof(ApiController));
IDictionary<string, object> arguments = new Dictionary<string, object>();
TestTraceWriter traceWriter = new TestTraceWriter();
HttpActionDescriptorTracer tracer = new HttpActionDescriptorTracer(controllerContext, mockActionDescriptor.Object, traceWriter);
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(controllerContext.Request, TraceCategories.ActionCategory, TraceLevel.Info) { Kind = TraceKind.Begin },
new TraceRecord(controllerContext.Request, TraceCategories.ActionCategory, TraceLevel.Error) { Kind = TraceKind.End }
};
// Act & Assert
Assert.Throws<InvalidOperationException>(() => tracer.ExecuteAsync(controllerContext, arguments));
// Assert
Assert.Equal<TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.Same(exception, traceWriter.Traces[1].Exception);
}
}
}
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