Handle empty response to FTP QUIT message.

net/ftp/ftp_network_transaction_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/ftp/ftp_network_transaction.h"
 
 #include <deque>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 1687 matching lines @@
 TEST_P(FtpNetworkTransactionTest, ExtraQuitResponses) {
   FtpSocketDataProviderDirectoryListing ctrl_socket;
   ctrl_socket.InjectFailure(FtpSocketDataProvider::PRE_QUIT,
                             FtpSocketDataProvider::QUIT,
                             "221 Foo\r\n"
                             "221 Bar\r\n"
                             "221 Trombones\r\n");
   ExecuteTransaction(&ctrl_socket, "ftp://host/", ERR_INVALID_RESPONSE);
 }
 
+// Test case for https://crbug.com/633841 - similar to the ExtraQuitResponses
+// test case, but with an empty response.
+TEST_P(FtpNetworkTransactionTest, EmptyQuitResponse) {
+  FtpSocketDataProviderDirectoryListing ctrl_socket;
+  ctrl_socket.InjectFailure(FtpSocketDataProvider::PRE_QUIT,
+                            FtpSocketDataProvider::QUIT, "");
+  ExecuteTransaction(&ctrl_socket, "ftp://host/", OK);
+}
+
 TEST_P(FtpNetworkTransactionTest, InvalidRemoteDirectory) {
   FtpSocketDataProviderFileDownload ctrl_socket;
   TransactionFailHelper(
       &ctrl_socket, "ftp://host/file", FtpSocketDataProvider::PRE_PWD,
       FtpSocketDataProvider::PRE_QUIT,
       "257 \"foo\rbar\" is your current location\r\n", ERR_INVALID_RESPONSE);
 }
 
 TEST_P(FtpNetworkTransactionTest, InvalidRemoteDirectory2) {
   FtpSocketDataProviderFileDownload ctrl_socket;
   TransactionFailHelper(
       &ctrl_socket, "ftp://host/file", FtpSocketDataProvider::PRE_PWD,
       FtpSocketDataProvider::PRE_QUIT,
       "257 \"foo\nbar\" is your current location\r\n", ERR_INVALID_RESPONSE);
 }
 
 INSTANTIATE_TEST_CASE_P(Ftp,
                         FtpNetworkTransactionTest,
                         ::testing::Values(AF_INET, AF_INET6));
 
 }  // namespace net