public void ProcessRequest_Ignores_Position_Of_Replacement_Stream()
{
using (var hostStream = new MemoryStream()) {
_Environment[EnvironmentKey.ResponseBody] = hostStream;
var middleware = new MockMiddleware();
middleware.Action = () => {
var pipelineStream = middleware.LastEnvironment[EnvironmentKey.ResponseBody] as Stream;
Assert.IsNotNull(pipelineStream);
Assert.AreNotSame(hostStream, pipelineStream);
pipelineStream.Write(new byte[] { 1, 2, 3 });
--pipelineStream.Position;
};
_StreamManipulatorBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
var hostStreamContent = hostStream.ToArray();
Assert.AreEqual(3, hostStreamContent.Length);
Assert.IsTrue(new byte[] { 1, 2, 3 }.SequenceEqual(hostStreamContent));
}
}
public void ProcessRequest_Deals_With_Exceptions_In_Accordance_With_Builder_Flags(bool exceptionLoggingRequested, bool exceptionSwallowingRequested, int expectedLoggerCallCount, bool expectedSeenException, int?expectedStatusCode)
{
_BuilderEnvironment.Object.PipelineLogsExceptions = exceptionLoggingRequested;
_BuilderEnvironment.Object.PipelineSwallowsExceptions = exceptionSwallowingRequested;
var logger = SetupExceptionLogger();
var middleware = new MockMiddleware();
var exception = new InvalidOperationException();
middleware.Action = () => throw exception;
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
var seenException = false;
int?statusCode = null;
try {
_Pipeline.ProcessRequest(_Environment).Wait();
} catch (AggregateException ex) {
Assert.AreEqual(1, ex.InnerExceptions.Count);
seenException = Object.ReferenceEquals(ex.InnerException, exception);
}
if (_Environment.ContainsKey(EnvironmentKey.ResponseStatusCode))
{
statusCode = (int)_Environment[EnvironmentKey.ResponseStatusCode];
}
Assert.AreEqual(expectedLoggerCallCount, logger.CallCount);
Assert.AreEqual(expectedSeenException, seenException);
Assert.AreEqual(expectedStatusCode, statusCode);
}
public void ProcessRequest_Replaces_Response_Stream_If_Stream_Manipulators_Are_Used()
{
using (var hostStream = new MemoryStream()) {
_Environment[EnvironmentKey.ResponseBody] = hostStream;
var middleware = new MockMiddleware();
middleware.Action = () => {
var pipelineStream = middleware.LastEnvironment[EnvironmentKey.ResponseBody] as Stream;
Assert.IsNotNull(pipelineStream);
Assert.AreNotSame(hostStream, pipelineStream);
pipelineStream.WriteByte(99);
};
_StreamManipulatorBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreSame(hostStream, _Environment[EnvironmentKey.ResponseBody]);
var hostStreamContent = hostStream.ToArray();
Assert.AreEqual(1, hostStreamContent.Length);
Assert.AreEqual(99, hostStreamContent[0]);
}
}
public void ProcessRequest_Log_Exceptions_Has_No_Effect_If_No_Logger_Registered()
{
_BuilderEnvironment.Object.PipelineLogsExceptions = true;
_BuilderEnvironment.Object.PipelineSwallowsExceptions = true;
var middleware = new MockMiddleware();
var exception = new InvalidOperationException();
middleware.Action = () => throw exception;
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
var seenException = false;
int?statusCode = null;
try {
_Pipeline.ProcessRequest(_Environment).Wait();
} catch (AggregateException ex) {
Assert.AreEqual(1, ex.InnerExceptions.Count);
seenException = Object.ReferenceEquals(ex.InnerException, exception);
}
if (_Environment.ContainsKey(EnvironmentKey.ResponseStatusCode))
{
statusCode = (int)_Environment[EnvironmentKey.ResponseStatusCode];
}
Assert.AreEqual(true, seenException);
Assert.AreEqual(null, statusCode);
}
public void Construct_Builds_Middleware_AppFunc_And_ProcessRequest_Uses_It()
{
var middleware = new MockMiddleware();
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware.AppFuncBuilderCallCount);
}
public void ProcessRequest_Sets_Status_200_If_Pipeline_Finishes_Early_Without_Setting_Status_And_Without_Stream_Manipulators()
{
var middleware = new MockMiddleware {
ChainToNextAppFunc = false
};
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(200, (int)_Environment[EnvironmentKey.ResponseStatusCode]);
}
public void ProcessRequest_Calls_Stream_Manipulators()
{
var middleware = new MockMiddleware();
_StreamManipulatorBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware.Environments.Count);
Assert.AreSame(_Environment, middleware.LastEnvironment);
Assert.AreEqual(1, middleware.Nexts.Count);
Assert.IsNotNull(middleware.LastNext);
}
public void ProcessRequest_Does_Not_Replace_Stream_If_Host_Stream_Is_Null()
{
_Environment[EnvironmentKey.ResponseBody] = Stream.Null;
var middleware = new MockMiddleware();
middleware.Action = () => {
var pipelineStream = middleware.LastEnvironment[EnvironmentKey.ResponseBody] as Stream;
Assert.IsTrue(pipelineStream == Stream.Null);
};
_StreamManipulatorBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
}
public void ProcessRequest_Middleware_Can_End_Processing_Early()
{
var middleware_1 = new MockMiddleware()
{
ChainToNextAppFunc = false,
};
var middleware_2 = new MockMiddleware();
_MiddlewareBuilders.Add(middleware_1.AppFuncBuilder);
_MiddlewareBuilders.Add(middleware_2.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware_1.AppFuncCallCount);
Assert.AreEqual(0, middleware_2.AppFuncCallCount);
}
public void ProcessRequest_Does_Not_Replace_Stream_If_Stream_Manipulators_Are_Not_Used()
{
using (var hostStream = new MemoryStream()) {
_Environment[EnvironmentKey.ResponseBody] = hostStream;
var middleware = new MockMiddleware();
middleware.Action = () => {
var pipelineStream = middleware.LastEnvironment[EnvironmentKey.ResponseBody] as Stream;
Assert.AreSame(hostStream, pipelineStream);
};
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
}
}
public void ProcessRequest_Calls_Two_Middleware()
{
var middleware_1 = new MockMiddleware();
var middleware_2 = new MockMiddleware();
middleware_1.Action = () => Assert.AreEqual(0, middleware_2.AppFuncCallCount);
middleware_2.Action = () => Assert.AreEqual(1, middleware_1.AppFuncCallCount);
_MiddlewareBuilders.Add(middleware_1.AppFuncBuilder);
_MiddlewareBuilders.Add(middleware_2.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware_1.AppFuncCallCount);
Assert.AreEqual(1, middleware_2.AppFuncCallCount);
}
public void ProcessRequest_Calls_Stream_Manipulators_After_Middleware()
{
var middleware = new MockMiddleware();
var streamManipulator = new MockMiddleware();
middleware.Action = () => Assert.AreEqual(0, streamManipulator.AppFuncCallCount);
streamManipulator.Action = () => Assert.AreEqual(1, middleware.AppFuncCallCount);
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_StreamManipulatorBuilders.Add(streamManipulator.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware.AppFuncCallCount);
Assert.AreEqual(1, streamManipulator.AppFuncCallCount);
}
public void ProcessRequest_Does_Not_Let_Stream_Manipulators_Break_The_Chain()
{
var middleware_1 = new MockMiddleware()
{
ChainToNextAppFunc = false,
};
var middleware_2 = new MockMiddleware();
_StreamManipulatorBuilders.Add(middleware_1.AppFuncBuilder);
_StreamManipulatorBuilders.Add(middleware_2.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware_1.AppFuncCallCount);
Assert.AreEqual(1, middleware_2.AppFuncCallCount);
}
public void ProcessRequest_Middleware_Can_End_Chain_In_One_Request_And_Not_End_Chain_In_Another()
{
var middleware_1 = new MockMiddleware()
{
ChainToNextAppFunc = false,
};
var middleware_2 = new MockMiddleware();
_MiddlewareBuilders.Add(middleware_1.AppFuncBuilder);
_MiddlewareBuilders.Add(middleware_2.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
middleware_1.ChainToNextAppFunc = true;
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(2, middleware_1.AppFuncCallCount);
Assert.AreEqual(1, middleware_2.AppFuncCallCount);
}
public void ProcessRequest_Calls_Stream_Manipulators_Even_If_Middleware_Breaks_Chain()
{
var middleware_1 = new MockMiddleware()
{
ChainToNextAppFunc = false,
};
var middleware_2 = new MockMiddleware();
var streamManipulator = new MockMiddleware();
_MiddlewareBuilders.Add(middleware_1.AppFuncBuilder);
_MiddlewareBuilders.Add(middleware_2.AppFuncBuilder);
_StreamManipulatorBuilders.Add(streamManipulator.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, middleware_1.AppFuncCallCount);
Assert.AreEqual(0, middleware_2.AppFuncCallCount);
Assert.AreEqual(1, streamManipulator.AppFuncCallCount);
}
public void ProcessRequest_Exception_Logging_Tries_To_Pass_Request_Url_To_Logger()
{
var logger = SetupExceptionLogger();
_BuilderEnvironment.Object.PipelineLogsExceptions = true;
_BuilderEnvironment.Object.PipelineSwallowsExceptions = true;
var middleware = new MockMiddleware();
var exception = new InvalidOperationException();
middleware.Action = () => throw exception;
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Environment[EnvironmentKey.RequestPathBase] = "/root";
_Environment[EnvironmentKey.RequestPath] = "/path/to/file";
_Environment[EnvironmentKey.RequestQueryString] = "a=1&b=c%20d";
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, logger.RequestUrls.Count);
Assert.AreEqual("/root/path/to/file?a=1&b=c%20d", logger.RequestUrls[0]);
}
public void ProcessRequest_Adds_Custom_Key_With_Unique_ID_For_Request()
{
var middleware = new MockMiddleware();
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
var id1 = (long)_Environment[CustomEnvironmentKey.RequestID];
TestCleanup();
TestInitialise();
middleware = new MockMiddleware();
_MiddlewareBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
var id2 = (long)_Environment[CustomEnvironmentKey.RequestID];
Assert.AreNotEqual(0L, id1);
Assert.AreNotEqual(0L, id2);
Assert.AreNotEqual(id1, id2);
}
public void ProcessRequest_Overrides_Content_Length_Header_If_Using_Replacement_Stream()
{
using (var hostStream = new MemoryStream()) {
_Environment[EnvironmentKey.ResponseBody] = hostStream;
var responseHeaders = new Dictionary <string, string[]>(StringComparer.OrdinalIgnoreCase);
_Environment[EnvironmentKey.ResponseHeaders] = responseHeaders;
var middleware = new MockMiddleware();
middleware.Action = () => {
var pipelineStream = middleware.LastEnvironment[EnvironmentKey.ResponseBody] as Stream;
pipelineStream.Write(new byte[] { 1, 2, 3 });
responseHeaders["Content-Length"] = new string[] { "20" };
--pipelineStream.Position;
};
_StreamManipulatorBuilders.Add(middleware.AppFuncBuilder);
_Pipeline.Construct(_BuilderEnvironment.Object);
_Pipeline.ProcessRequest(_Environment).Wait();
Assert.AreEqual(1, responseHeaders["Content-Length"].Length);
Assert.AreEqual("3", responseHeaders["Content-Length"][0]);
}
}