public void Initialize_Repairs_Handler_Collection_If_RequestTracer_Inserted()
{
// Arrange
HttpConfiguration config = new HttpConfiguration();
config.Services.Replace(typeof(ITraceWriter), new TestTraceWriter());
TestTraceWriter traceWriter = new TestTraceWriter();
DelegatingHandler messageHandler = new Mock<DelegatingHandler>().Object;
DelegatingHandler msgHandlerTracer = new MessageHandlerTracer(messageHandler, traceWriter);
RequestMessageHandlerTracer requestMsgtracer = new RequestMessageHandlerTracer(traceWriter);
List<DelegatingHandler> handlerList = new List<DelegatingHandler>() { messageHandler, msgHandlerTracer, requestMsgtracer };
foreach (var eachHandler in handlerList)
{
config.MessageHandlers.Add(eachHandler);
}
TraceManager traceManager = new TraceManager();
traceManager.Initialize(config);
Collection<DelegatingHandler> expectedMessageHandlers = config.MessageHandlers;
// Act
config.MessageHandlers.Insert(0, requestMsgtracer);
traceManager.Initialize(config);
// Assert
Collection<DelegatingHandler> actualMessageHandlers = config.MessageHandlers;
Assert.Equal(expectedMessageHandlers, actualMessageHandlers);
Assert.True(IsMessageHandlerCollectionValid(config.MessageHandlers));
}
public void HttpServer_CallsCustomMessageHandlers_InTheCorrectOrder()
{
// Arrange
List<int> order = new List<int>();
order.Add(1);
order.Add(2);
order.Add(3);
order.Add(4);
List<int>.Enumerator e = order.GetEnumerator();
OrderAwareMessageHandler messageHandler1 = new OrderAwareMessageHandler(e, 1);
OrderAwareMessageHandler messageHandler2 = new OrderAwareMessageHandler(e, 2);
OrderAwareMessageHandler messageHandler3 = new OrderAwareMessageHandler(e, 3);
OrderAwareMessageHandler messageHandler4 = new OrderAwareMessageHandler(e, 4);
HttpRequestMessage request = new HttpRequestMessage();
TraceManager traceManager = new TraceManager();
HttpConfiguration config = new HttpConfiguration();
config.Services.Replace(typeof(ITraceWriter), new TestTraceWriter());
config.MessageHandlers.Add(messageHandler1);
config.MessageHandlers.Add(messageHandler2);
config.MessageHandlers.Add(messageHandler3);
config.MessageHandlers.Add(messageHandler4);
Mock<HttpControllerDispatcher> dispatcherMock = new Mock<HttpControllerDispatcher>(config);
dispatcherMock.Protected().Setup<Task<HttpResponseMessage>>("SendAsync", request, CancellationToken.None)
.Returns(TaskHelpers.FromResult<HttpResponseMessage>(request.CreateResponse()));
HttpServer server = new HttpServer(config, dispatcherMock.Object);
HttpMessageInvoker invoker = new HttpMessageInvoker(server);
// Act
Task<HttpResponseMessage> response = invoker.SendAsync(request, CancellationToken.None);
// Assert
Assert.True(IsMessageHandlerCollectionValid(config.MessageHandlers));
}
public void Multiple_Initialize_DoesNotAlter_MessageHandlerCollection(List<DelegatingHandler> handlerList)
{
// Arrange
HttpConfiguration config = new HttpConfiguration();
config.Services.Replace(typeof(ITraceWriter), new TestTraceWriter());
foreach (var eachHandler in handlerList)
{
config.MessageHandlers.Add(eachHandler);
}
TraceManager traceManager = new TraceManager();
traceManager.Initialize(config);
Collection<DelegatingHandler> expectedMessageHandlers = config.MessageHandlers;
// Act
traceManager.Initialize(config);
// Assert
Collection<DelegatingHandler> actualMessageHandlers = config.MessageHandlers;
Assert.Equal(expectedMessageHandlers, actualMessageHandlers);
Assert.True(IsMessageHandlerCollectionValid(config.MessageHandlers));
}
public void TraceManager_Initialize_After_HttpServer_Initialize_DoesNotAlter_MessageHandlerCollection()
{
// Arrange
HttpConfiguration config = new HttpConfiguration();
config.Services.Replace(typeof(ITraceWriter), new TestTraceWriter());
DelegatingHandler messageHandler = new Mock<DelegatingHandler>().Object;
config.MessageHandlers.Add(messageHandler);
TraceManager traceManager = new TraceManager();
Collection<DelegatingHandler> expectedMessageHandlers = config.MessageHandlers;
HttpRequestMessage request = new HttpRequestMessage();
Mock<HttpControllerDispatcher> dispatcherMock = new Mock<HttpControllerDispatcher>(config);
dispatcherMock.Protected().Setup<Task<HttpResponseMessage>>("SendAsync", request, CancellationToken.None)
.Returns(TaskHelpers.FromResult<HttpResponseMessage>(request.CreateResponse()));
HttpServer server = new HttpServer(config, dispatcherMock.Object);
HttpMessageInvoker invoker = new HttpMessageInvoker(server);
// Act
Task<HttpResponseMessage> response = invoker.SendAsync(request, CancellationToken.None);
traceManager.Initialize(config);
// Assert
Collection<DelegatingHandler> actualMessageHandlers = config.MessageHandlers;
Assert.Equal(expectedMessageHandlers, actualMessageHandlers);
Assert.True(IsMessageHandlerCollectionValid(config.MessageHandlers));
}
public void Multiple_Initialize_DoesNotAlter_Num_Of_MessageHandlers_With_No_TraceWriter()
{
// Arrange
HttpConfiguration config = new HttpConfiguration();
TraceManager traceManager = new TraceManager();
traceManager.Initialize(config);
int expectedHandlerCount = config.MessageHandlers.Count;
// Act
traceManager.Initialize(config);
// Assert
int actualHandlerCount = config.MessageHandlers.Count;
Assert.Equal(expectedHandlerCount, actualHandlerCount);
}
