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_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 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_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 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 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_CompleteFilterProcess()
{
// 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 - Write some bytes
Task writeTask = filterStream.WriteAsync(bytesToSend, 0, 20);
// Assert
TaskAssert.NotCompleted(writeTask, "Write task should not complete until a successful response comes from the server.");
// Act Ia - Response from the server
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
// Assert
TaskAssert.Completed(writeTask, "The write task should complete after we receive the response line from the server.");
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 - Write some more bytes
filterStream.Write(bytesToSend, 20, bytesToSend.Length - 20);
// Assert
Assert.Contains("body></body></html>", 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 III - Wait for complete
Task completeTask = filterStream.FlushAsync();
// Assert
TaskAssert.NotCompleted(completeTask, "Before response from server.");
// Act IV - Send response from server
serverSocket.SendString("Content-Length: 17\r\n\r\nXFiltered content", Encoding.ASCII);
// Assert
Assert.Equal("Filtered content", filterContext.GetResponseBody(Encoding.ASCII));
TaskAssert.Completed(completeTask, "After response from server.");
Assert.False(filterStream.ScriptInjectionTimedOut);
}
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 void HttpSocketAdapter_ThrowsExceptionForMalformedChunkedResponse()
{
// 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);
clientSocket.SetResponseHandler(handler.HandlerMethod);
// Act
serverSocket.SendString("Hi!\r\n", Encoding.ASCII);
// Assert
TaskAssert.Faulted(clientSocket.WaitForResponseComplete(), "ResponseReader should throw an exception if the response is malformed. Otherwise, the response will be blank and there will be nothing pointing to why it happened.");
}
public void HttpSocketAdapter_GetResponseHeader_ReturnsHeaderWhenAvailable()
{
// 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);
// Act
Task <string> result = clientSocket.GetResponseHeader("content-encoding");
// Assert
TaskAssert.NotCompleted(result, "Before header sent");
// Act
serverSocket.SendString("Content-Encoding: UTF-16\r\n", Encoding.ASCII);
// Assert
TaskAssert.NotCompleted(result, "Header values should not be returned until all headers are read.");
// Act - Blank newline means end of headers
serverSocket.SendString("Content-Length: 45\r\n\r\n", Encoding.ASCII);
// Assert
TaskAssert.ResultEquals(result, "UTF-16");
// Act
Task <string> result2 = clientSocket.GetResponseHeader("content-length");
// Assert
TaskAssert.ResultEquals(result2, "45");
// Act
Task <string> result3 = clientSocket.GetResponseHeader("user-agent");
// Assert
TaskAssert.ResultEquals(result3, null);
}
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 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 SocketReader_ReadChar_ReadsOneCharacter()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("ab", Encoding.Unicode);
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.Unicode);
// Act
Task <char> result = reader.ReadChar(_dontCancel);
// Assert
TaskAssert.ResultEquals(result, 'a');
}
public void HttpSocketAdapter_GetResponseStatusCode_ReturnsStatusCode()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
HttpSocketAdapter clientSocket = new HttpSocketAdapter("GET", new Uri("http://bing.com"), serverSocket);
// Act
Task <int> result = clientSocket.GetResponseStatusCode();
// Assert
TaskAssert.NotCompleted(result, "Before status line was sent.");
// Act
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
// Assert
TaskAssert.ResultEquals(result, 200, "After status line was sent.");
}
public void SocketReader_ReadLine_WaitsForDataReadingOneLine()
{
// 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 a test.\r\n", Encoding.ASCII);
// Assert
TaskAssert.ResultEquals(result, "This is a test.", "After sending data.");
}
public void SocketReader_ReadLine_ReadsLineLongerThanBuffer()
{
// Arrange
string lineToSend = new String('Σ', count: 20000);
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString(lineToSend + "\r\n", Encoding.Unicode);
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.Unicode);
// Act
Task <string> result = reader.ReadLine(_dontCancel);
// Assert
TaskAssert.ResultEquals(result, lineToSend);
}
public void ScriptInjectionFilterStream_ChecksResponseContentType()
{
// Arrange
MockSocketAdapter serverSocket = new MockSocketAdapter();
serverSocket.SendString("HTTP/1.1 200 OK\r\n", Encoding.ASCII);
MockScriptInjectionFilterContext filterContext = new MockScriptInjectionFilterContext(contentType: "text/javascript");
ScriptInjectionFilterStream filterStream = CreateFilterStream(serverSocket, filterContext);
byte[] bytesToSend = Encoding.UTF8.GetBytes("var myhtml = \"<html></html>\";");
// Act
filterStream.Write(bytesToSend, 0, bytesToSend.Length);
// Assert
AssertWithMessage.Equal(0, serverSocket.SentContent.Length, "Non-HTML content shouldn't be sent to the filter.");
Assert.True(serverSocket.IsClosed, "Connection to VS was not closed when non-HTML content was detected.");
Assert.Equal("var myhtml = \"<html></html>\";", filterContext.GetResponseBody(Encoding.UTF8));
}
public void SocketReader_ReadChar_DoesNotWaitForDataReadingSecondCharacter()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("ab", Encoding.UTF8);
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.UTF8);
Task <char> result1 = reader.ReadChar(_dontCancel);
TaskAssert.ResultEquals(result1, 'a', "SocketReader did not read the first character in the buffer.");
// Act
Task <char> result2 = reader.ReadChar(_dontCancel);
// Assert
TaskAssert.ResultEquals(result2, 'b');
}
public void SocketReader_ReadChar_WaitsForDataReadingOneCharacter()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.Unicode);
// Act
Task <char> result = reader.ReadChar(_dontCancel);
// Assert
TaskAssert.NotCompleted(result, "Before sending data");
// Act
socket.SendString("ab", Encoding.Unicode);
// Assert
TaskAssert.ResultEquals(result, 'a', "After sending data");
}
public void ScriptInjectionFilterStream_PassesHtmlToFilter()
{
// 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
filterStream.Write(bytesToSend, 0, bytesToSend.Length);
// Assert
Assert.Contains("\r\nContent-Type: text/html\r\n", serverSocket.SentContent);
Assert.Contains("<html><head></head><body></body></html>", 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.");
}
public void ScriptInjectionFilterStream_ErrorResponseCodeFromServer()
{
// 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 - Attempt to write some bytes
Task writeTask = filterStream.WriteAsync(bytesToSend, 0, 20);
// Assert
TaskAssert.NotCompleted(writeTask, "Task should not complete until the response line is read.");
// Act - Write an error response
serverSocket.SendString("HTTP/1.1 404 Not Found\r\n", Encoding.ASCII);
// Assert
TaskAssert.Completed(writeTask, "Task should complete after the response line is received.");
Assert.Equal("<html><head></head><", filterContext.GetResponseBody(Encoding.UTF8));
Assert.True(serverSocket.IsClosed, "Server connection should be closed.");
}
