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_ExceptionOnFirstWrite()
{
// 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
serverSocket.ThrowExceptionOnNextSendAsync();
Task writeTask = filterStream.WriteAsync(bytesToSend, 0, 20);
// Assert
TaskAssert.NotFaulted(writeTask, "Task should not be faulted. Filter should switch to passthrough mode.");
Assert.Equal("<html><head></head><", filterContext.GetResponseBody(Encoding.UTF8));
Assert.True(serverSocket.IsClosed, "Server connection should be closed.");
}
