public void SocketReader_ReadLine_WaitsForMoreDataWhenLineIncomplete()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
SocketReader reader = new SocketReader(socket);
// Act
Task <string> result = reader.ReadLine(_dontCancel);
// Assert
TaskAssert.NotCompleted(result, "Before sending data.");
// Act
socket.SendString("This is the first part of the string. ", Encoding.ASCII);
// Assert
TaskAssert.NotCompleted(result, "After sending first sentence.");
// Act
socket.SendString("This is the second part of the string.\r", Encoding.ASCII);
// Assert
TaskAssert.NotCompleted(result, "After sending second sentence.");
// Act
socket.SendString("\nThis is an extra, third sentence.\r\n", Encoding.ASCII);
// Assert
TaskAssert.ResultEquals(result, "This is the first part of the string. This is the second part of the string.", "After sending data.");
}
public void HttpSocketAdapter_ReadsContentIntoResponseHandler()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
serverSocket.SendString("Content-Length: 40\r\n\r\n", Encoding.ASCII);
serverSocket.SendString("1234567890", Encoding.Unicode);
HttpSocketAdapter clientSocket = new HttpSocketAdapter("GET", new Uri("http://bing.com"), serverSocket);
MockResponseHandler handler = new MockResponseHandler(Encoding.Unicode);
// Act
clientSocket.SetResponseHandler(handler.HandlerMethod);
// Assert
Assert.Equal("1234567890", handler.Response);
// Act
Task responseComplete = clientSocket.WaitForResponseComplete();
// Assert
TaskAssert.NotCompleted(responseComplete, "After sending first chunk of data");
// Act - Send too much data to complete Content-Length
serverSocket.SendString("abcdefghijklmnopqrstuvwxyz", Encoding.Unicode);
// Assert - Only Content-Length was read
Assert.Equal("1234567890abcdefghij", handler.Response);
TaskAssert.Completed(responseComplete, "After sending remaining data");
}
public void SocketReader_ReadBytesIntoResponseHandler_ReadsMoreBytes()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("This is a test. This is the next sentence.", Encoding.ASCII);
MockResponseHandler handler = new MockResponseHandler(Encoding.ASCII);
SocketReader reader = new SocketReader(socket);
// Act
Task <int> result = reader.ReadBytesIntoResponseHandler(15, handler.HandlerMethod, _dontCancel);
// Assert
TaskAssert.ResultEquals(result, 15);
Assert.Equal("This is a test.", handler.Response);
// Act
result = reader.ReadBytesIntoResponseHandler(27, handler.HandlerMethod, _dontCancel);
// Assert
TaskAssert.ResultEquals(result, 27);
Assert.Equal("This is a test. This is the next sentence.", handler.Response);
}
public void SocketReader_ReadBytesIntoResponseHandler_WaitsForData()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
MockResponseHandler handler = new MockResponseHandler(Encoding.Unicode);
SocketReader reader = new SocketReader(socket);
// Act
Task <int> result = reader.ReadBytesIntoResponseHandler(30, handler.HandlerMethod, _dontCancel);
// Assert
TaskAssert.NotCompleted(result, "Before any data sent");
// Act
socket.SendString("This is ", Encoding.Unicode);
// Assert
TaskAssert.NotCompleted(result, "After some data sent");
// Act
socket.SendString("a test. And then some.", Encoding.Unicode);
// Assert
TaskAssert.ResultEquals(result, 30, "After all data sent");
Assert.Equal("This is a test.", handler.Response);
}
public void SocketReader_ReadBytesIntoResponseHandler_StopsReadingBytesIfCancelled()
{
// Arrange
string stringToSend = "123456789";
byte[] bufferToSend = Encoding.ASCII.GetBytes(stringToSend);
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendBytes(bufferToSend, 0, bufferToSend.Length);
MockResponseHandler handler = new MockResponseHandler(Encoding.ASCII);
CancellationTokenSource cts = new CancellationTokenSource();
SocketReader reader = new SocketReader(socket);
Task <int> task = reader.ReadBytesIntoResponseHandler(bufferToSend.Length + 1, handler.HandlerMethod, cts.Token);
// Act
cts.Cancel();
// Assert
TaskAssert.ResultEquals(task, bufferToSend.Length);
Assert.Equal(stringToSend, handler.Response);
}
public void SocketReader_ReadBytesIntoResponseHandler_WaitsForHandlerToComplete()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("This is a test. This sentence isn't read.", Encoding.UTF8);
MockResponseHandler handler = new MockResponseHandler(Encoding.UTF8);
handler.Block = true;
SocketReader reader = new SocketReader(socket);
// Act
Task <int> result = reader.ReadBytesIntoResponseHandler(15, handler.HandlerMethod, _dontCancel);
// Assert
TaskAssert.NotCompleted(result, "Before handler is unblocked.");
// Act
handler.Block = false;
// Assert
TaskAssert.ResultEquals(result, 15, "After handler is unblocked.");
Assert.Equal("This is a test.", handler.Response);
}
public void ScriptInjectionFilterStream_ExceptionOnSubsequentWrite()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
MockScriptInjectionFilterContext filterContext = new MockScriptInjectionFilterContext();
ScriptInjectionFilterStream filterStream = CreateFilterStream(serverSocket, filterContext);
byte[] bytesToSend = Encoding.UTF8.GetBytes("<html><head></head><body></body></html>");
// Act I - Write some bytes
filterStream.Write(bytesToSend, 0, 20);
// Assert
Assert.Contains("<html><head></head><", serverSocket.SentContent);
AssertWithMessage.Equal(0, filterContext.GetResponseBody(Encoding.UTF8).Length, "No content should be sent to the response yet.");
Assert.False(serverSocket.IsClosed, "Server connection should not have been closed.");
// Act II - Attempt to write more bytes
serverSocket.ThrowExceptionOnNextSendAsync();
Task result = filterStream.WriteAsync(bytesToSend, 20, bytesToSend.Length - 20);
// Assert
TaskAssert.Faulted(result, "Exception should have been re-thrown");
Assert.Equal("SendAsync after ThrowExceptionOnNextSendAsync was called.", result.Exception.InnerException.Message);
}
public void ScriptInjectionFilterStream_CompletePassthroughProcess()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
MockScriptInjectionFilterContext filterContext = new MockScriptInjectionFilterContext(contentType: "text/css");
ScriptInjectionFilterStream filterStream = CreateFilterStream(serverSocket, filterContext);
byte[] bytesToSend = Encoding.UTF8.GetBytes("body { font-size: xxlarge; } p { background-color: red }");
// Act I - Write some bytes
filterStream.Write(bytesToSend, 0, 20);
// Assert
Assert.Equal("body { font-size: xx", filterContext.GetResponseBody(Encoding.UTF8));
Assert.True(serverSocket.IsClosed, "Server connection should be closed.");
// Act II - Write some more bytes
filterStream.Write(bytesToSend, 20, bytesToSend.Length - 20);
// Assert
Assert.Equal("body { font-size: xxlarge; } p { background-color: red }", filterContext.GetResponseBody(Encoding.UTF8));
// Act III - Wait for complete
Task completeTask = filterStream.FlushAsync();
// Assert
TaskAssert.Completed(completeTask, "Flush should complete immediately, because the filter is not being used.");
}
public void ScriptInjectionFilterStream_BecomesPassthroughOnTimeout()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
MockScriptInjectionFilterContext filterContext = new MockScriptInjectionFilterContext();
ScriptInjectionFilterStream filterStream = CreateFilterStream(serverSocket, filterContext);
byte[] bytesToSend = Encoding.UTF8.GetBytes("<html><head></head><body></body></html>");
// Act I - Send some bytes
Task writeTask = filterStream.WriteAsync(bytesToSend, 0, 20);
// Assert
TaskAssert.NotCompleted(writeTask, "Should be waiting for server to respond");
// Act II - Wait for the request to time out
System.Threading.Thread.Sleep(1100);
// Assert
TaskAssert.Completed(writeTask, "Write should complete when server fails to respond");
Assert.True(serverSocket.IsClosed, "Should become passthrough");
Assert.Equal("<html><head></head><", filterContext.GetResponseBody(Encoding.UTF8));
AssertWithMessage.Equal(true, filterStream.ScriptInjectionTimedOut, "ScriptInjectionTimedOut");
}
public void HttpSocketAdapter_GetResponseHeader_SocketException()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
HttpSocketAdapter clientSocket = new HttpSocketAdapter("GET", new Uri("http://bing.com"), serverSocket);
Task <int> responseCodeTask = clientSocket.GetResponseStatusCode();
Task <string> responseHeaderTask = clientSocket.GetResponseHeader("test header");
Task responseCompleteTask = clientSocket.WaitForResponseComplete();
TaskAssert.Completed(responseCodeTask, "GetResponseStatusCode should have failed.");
AssertWithMessage.Equal(200, responseCodeTask.Result, "Wrong result for GetResponseStatusCode");
// Act
serverSocket.ThrowExceptionFromReceiveAsync();
// Assert
TaskAssert.Faulted(responseHeaderTask, "GetResponseHeader should have failed.");
TaskAssert.Faulted(responseCompleteTask, "WaitForResponseComplete should have failed.");
AssertWithMessage.Equal("An error occurred.", responseHeaderTask.Exception.InnerException.Message, "Wrong exception for GetResponseHeader");
AssertWithMessage.Equal("An error occurred.", responseCompleteTask.Exception.InnerException.Message, "Wrong exception for WaitForResponseComplete");
}
public void HttpSocketAdapter_ReadsChunkedContentIntoResponseHandler()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
serverSocket.SendString("Transfer-Encoding: chunked\r\n\r\n", Encoding.ASCII);
HttpSocketAdapter clientSocket = new HttpSocketAdapter("GET", new Uri("http://bing.com"), serverSocket);
MockResponseHandler handler = new MockResponseHandler(Encoding.ASCII);
// Act
clientSocket.SetResponseHandler(handler.HandlerMethod);
// Assert
Assert.Equal("", handler.Response);
// Act
serverSocket.SendString("C\r\nHello, world\r\n", Encoding.ASCII);
// Assert
Assert.Equal("Hello, world", handler.Response);
// Act
Task responseComplete = clientSocket.WaitForResponseComplete();
// Assert
TaskAssert.NotCompleted(responseComplete, "After sending 'Hello, World'");
// Act
serverSocket.SendString("8\r\nwide", Encoding.ASCII);
// Assert
Assert.Equal("Hello, worldwide", handler.Response);
TaskAssert.NotCompleted(responseComplete, "After sending 'wide'");
// Act
serverSocket.SendString("!!\r\n", Encoding.ASCII);
// Assert
Assert.Equal("Hello, worldwide!!\r\n", handler.Response);
TaskAssert.NotCompleted(responseComplete, "after sending '!!\r\n'");
// Act
serverSocket.SendString("\r\n", Encoding.ASCII);
// Assert
Assert.Equal("Hello, worldwide!!\r\n", handler.Response);
TaskAssert.NotCompleted(responseComplete, "after sending '\r\n'");
// Act
serverSocket.SendString("0\r\n", Encoding.ASCII);
// Assert
Assert.Equal("Hello, worldwide!!\r\n", handler.Response);
TaskAssert.Completed(responseComplete, "after completing the response");
}
public static void Faulted(Task task, string messageFormat = null, params object[] args)
{
if (!task.IsFaulted)
{
TaskAssert.ThrowFailure(
GetMethodFailureMessage(nameof(Faulted)),
FormatMessage(messageFormat, args));
}
}
public void RevolvingBuffers_WaitForBufferEmptyAsync_ReturnsImmediatelyIfNoData()
{
// Arrange
RevolvingBuffers <char> buffers = new RevolvingBuffers <char>(20);
// Act
Task task = buffers.WaitForBufferEmptyAsync();
// Assert
TaskAssert.Completed(task, "Task should be completed immediately.");
}
public static void NotCompleted(Task task, string messageFormat = null, params object[] args)
{
TaskAssert.NotFaulted(task, messageFormat, args);
if (task.IsCompleted)
{
ThrowFailure(
GetMethodFailureMessage(nameof(NotCompleted)),
FormatMessage(messageFormat, args));
}
}
public void DelayConnectingHttpSocketAdapter_CompleteRequest_DoesNotConnectIfNoDataAndNoResponse()
{
// Arrange
IHttpSocketAdapter delayAdapter = new DelayConnectingHttpSocketAdapter(DoNotConnect);
// Act
Task result = delayAdapter.CompleteRequest();
// Assert
TaskAssert.Completed(result, "CompleteRequest should complete immediately when there is no request.");
}
public void TaskHelpers_WaitWithCancellation_DoesNotCompleteUntilTaskCompletes()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
CancellationTokenSource cts = new CancellationTokenSource();
// Act
Task <string> result = TaskHelpers.WaitWithCancellation(tcs.Task, cts.Token, null);
// Assert
TaskAssert.NotCompleted(result);
}
public void TaskHelpers_WaitWithCancellation_ReturnsCompletedTask()
{
// Arrange
Task <string> task = Task.FromResult("Hello");
CancellationTokenSource cts = new CancellationTokenSource();
// Act
Task <string> result = TaskHelpers.WaitWithCancellation(task, cts.Token, null);
// Assert
TaskAssert.ResultEquals(result, "Hello");
}
public void DelayConnectingHttpSocketAdapter_WriteToRequestAsync_DoesNothingAfterFailureToConnect()
{
// Arrange
IHttpSocketAdapter delayAdapter = new DelayConnectingHttpSocketAdapter(FailToConnect);
byte[] bytesToWrite = Encoding.ASCII.GetBytes("Hello, world!");
// Act
Task result = delayAdapter.WriteToRequestAsync(bytesToWrite, 7, 5);
// Assert
TaskAssert.Completed(result);
}
public void SendResponseHeader(string name, string value)
{
TaskCompletionSource <string> tcs;
if (!_responseHeaderRequests.TryGetValue(name, out tcs))
{
tcs = new TaskCompletionSource <string>();
_responseHeaderRequests[name] = tcs;
}
TaskAssert.NotCompleted(tcs.Task, "MockHttpSocketAdapter: Response header '{0}' can only be set once.", name);
tcs.SetResult(value);
}
public void TaskHelpers_WaitWithCancellation_ReturnsTaskWhenCompleted()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
CancellationTokenSource cts = new CancellationTokenSource();
Task <string> result = TaskHelpers.WaitWithCancellation(tcs.Task, cts.Token, null);
// Act
tcs.SetResult("Hello");
// Assert
TaskAssert.ResultEquals(result, "Hello");
}
public void TaskHelpers_WaitWithCancellation_ReturnsCancelValueWhenTokenCancels()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
CancellationTokenSource cts = new CancellationTokenSource();
Task <string> result = TaskHelpers.WaitWithCancellation(tcs.Task, cts.Token, "Cancelled");
// Act
cts.Cancel();
// Assert
TaskAssert.ResultEquals(result, "Cancelled");
}
public void TaskHelpers_WaitWithTimeout_ReturnsTaskResultWhenComplete()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
TimeSpan timeout = TimeSpan.FromMilliseconds(1000);
Task <string> result = TaskHelpers.WaitWithTimeout(tcs.Task, timeout, null);
// Act
tcs.SetResult("Hello");
// Assert
TaskAssert.ResultEquals(result, "Hello");
}
public void TaskHelpers_WaitWithTimeout_HandlesTaskFault()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
TimeSpan timeout = TimeSpan.FromMilliseconds(1000);
Task <string> result = TaskHelpers.WaitWithTimeout(tcs.Task, timeout, "Timed out");
// Act
tcs.SetException(new Exception("MY TEST ERROR"));
// Assert
TaskAssert.Faulted(result);
}
public void SocketReader_ReadLine_ReadsOneLine()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("This is a test.\r\nThis is left out.\r\n", Encoding.ASCII);
SocketReader reader = new SocketReader(socket);
// Act
Task <string> result = reader.ReadLine(_dontCancel);
// Assert
TaskAssert.ResultEquals(result, "This is a test.");
}
public void HttpSocketAdapter_GetResponseStatusCode_MalformedStatusLine()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
serverSocket.SendString("Hello\r\n", Encoding.ASCII);
HttpSocketAdapter clientSocket = new HttpSocketAdapter("GET", new Uri("http://bing.com"), serverSocket);
// Act
Task <int> result = clientSocket.GetResponseStatusCode();
// Assert
TaskAssert.ResultEquals(result, 500);
}
public void DelayConnectingHttpSocketAdapter_WriteToRequestAsync_DoesNotAttemptToConnectAfterFailure()
{
// Arrange
IHttpSocketAdapter delayAdapter = new DelayConnectingHttpSocketAdapter(FailToConnect);
byte[] bytesToWrite = Encoding.ASCII.GetBytes("Hello, world!");
delayAdapter.WriteToRequestAsync(bytesToWrite, 7, 5);
// Act
Task result = delayAdapter.WriteToRequestAsync(bytesToWrite, 7, 5);
// Assert
// If we got here, a second connection was not attempted
TaskAssert.Completed(result);
}
public void TaskHelpers_WaitWithCancellation_ResturnsTaskResultIfTaskCompleteAndCanceledSimultaneously()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
CancellationTokenSource cts = new CancellationTokenSource();
tcs.SetResult("Not Cancelled");
cts.Cancel();
// Act
Task <string> result = TaskHelpers.WaitWithCancellation(tcs.Task, cts.Token, "Cancelled");
// Assert
TaskAssert.ResultEquals(result, "Not Cancelled");
}
public void TaskHelpers_WaitWithTimeout_ReturnsTimeoutResultIfTaskNotComplete()
{
// Arrange
TaskCompletionSource <string> tcs = new TaskCompletionSource <string>();
TimeSpan timeout = TimeSpan.FromMilliseconds(500);
Task <string> result = TaskHelpers.WaitWithTimeout(tcs.Task, timeout, "Timed out");
// Act
bool completed = result.Wait(millisecondsTimeout: 550);
// Assert
Assert.True(completed, "Task did not time out");
TaskAssert.ResultEquals(result, "Timed out");
}
public void SocketReader_ReadLine_IgnoresUnmatchedLineFeed()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("This is a test\rof an unmatched \n\r\n", Encoding.ASCII);
SocketReader reader = new SocketReader(socket);
// Act
Task <string> result = reader.ReadLine(_dontCancel);
// Assert
TaskAssert.ResultEquals(result, "This is a test\rof an unmatched \n");
}
public void RevolvingBuffers_WaitForBufferEmptyAsync_WaitsAfterDataHasBeenWritten()
{
// Arrange
char[] data = "Hello, world!".ToArray();
RevolvingBuffers <char> buffers = new RevolvingBuffers <char>(20);
buffers.CopyDataToBuffer(data, 0, 2);
// Act
Task task = buffers.WaitForBufferEmptyAsync();
// Assert
TaskAssert.NotCompleted(task, "Task should not be completed until data is read.");
}