Implements new, more robust design for communicating between SSLConnectJobs.

net/socket/ssl_client_socket_pool_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/http/http_proxy_client_socket_pool.h"
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
+#include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "net/base/auth.h"
 #include "net/base/load_timing_info.h"
 #include "net/base/load_timing_info_test_util.h"
 #include "net/base/net_errors.h"
 #include "net/base/test_completion_callback.h"
 #include "net/cert/cert_verifier.h"
 #include "net/dns/mock_host_resolver.h"
@@ skipping 203 matching lines @@
   scoped_ptr<ClientSocketPoolHistograms> ssl_histograms_;
   scoped_ptr<SSLClientSocketPool> pool_;
 };
 
 INSTANTIATE_TEST_CASE_P(
     NextProto,
     SSLClientSocketPoolTest,
     testing::Values(kProtoDeprecatedSPDY2,
                     kProtoSPDY3, kProtoSPDY31, kProtoSPDY4));
 
+// Make sure that sockets still connect after the leader socket's
+// connection fails.
+TEST_P(SSLClientSocketPoolTest, SimultaneousConnectJobsFail) {
+  SSLClientSocketPool::set_enable_connect_job_waiting(true);
+
+  StaticSocketDataProvider data1;
+  StaticSocketDataProvider data2;
+  StaticSocketDataProvider data3;
+  StaticSocketDataProvider data4;
+  StaticSocketDataProvider data5;
+  socket_factory_.AddSocketDataProvider(&data1);
+  socket_factory_.AddSocketDataProvider(&data2);
+  socket_factory_.AddSocketDataProvider(&data3);
+  socket_factory_.AddSocketDataProvider(&data4);
+  socket_factory_.AddSocketDataProvider(&data5);
+  SSLSocketDataProvider ssl(ASYNC, ERR_SSL_PROTOCOL_ERROR);
+  ssl.is_in_session_cache = false;
+  ssl.should_block_in_connect = true;
+  SSLSocketDataProvider ssl2(ASYNC, OK);
+  ssl2.is_in_session_cache = false;
+  ssl2.should_block_in_connect = true;
+  SSLSocketDataProvider ssl3(ASYNC, OK);
+  ssl3.is_in_session_cache = false;
+  SSLSocketDataProvider ssl4(ASYNC, OK);
+  ssl4.is_in_session_cache = false;
+  SSLSocketDataProvider ssl5(ASYNC, OK);
+  ssl5.is_in_session_cache = false;
+
+  socket_factory_.AddSSLSocketDataProvider(&ssl);
+  socket_factory_.AddSSLSocketDataProvider(&ssl2);
+  socket_factory_.AddSSLSocketDataProvider(&ssl3);
+  socket_factory_.AddSSLSocketDataProvider(&ssl4);
+  socket_factory_.AddSSLSocketDataProvider(&ssl5);
+
+  CreatePool(true, false, false);
+  scoped_refptr<SSLSocketParams> params1 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  scoped_refptr<SSLSocketParams> params2 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  scoped_refptr<SSLSocketParams> params3 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  scoped_refptr<SSLSocketParams> params4 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  ClientSocketHandle handle1;
+  ClientSocketHandle handle2;
+  ClientSocketHandle handle3;
+  ClientSocketHandle handle4;
+  TestCompletionCallback callback1;
+  TestCompletionCallback callback2;
+  TestCompletionCallback callback3;
+  TestCompletionCallback callback4;
+  handle1.Init(
+      "b", params1, MEDIUM, callback1.callback(), pool_.get(), BoundNetLog());
+  handle2.Init(
+      "b", params2, MEDIUM, callback2.callback(), pool_.get(), BoundNetLog());
+  handle3.Init(
+      "b", params3, MEDIUM, callback3.callback(), pool_.get(), BoundNetLog());
+  handle4.Init(
+      "b", params4, MEDIUM, callback4.callback(), pool_.get(), BoundNetLog());
+
+  base::RunLoop().RunUntilIdle();
+
+  std::vector<MockSSLClientSocket*> sockets =
+      socket_factory_.ssl_client_sockets();
+
+  // The first socket's connection should have failed, and no other sockets
+  // should have connected yet.
+  for (std::vector<MockSSLClientSocket*>::iterator it = sockets.begin();
+       it != sockets.end();
+       ++it) {
+    EXPECT_FALSE((*it)->IsConnected());
+  }
+
+  // Allow the first socket to resume it's connection process.
+  sockets[0]->RestartPausedConnect();
+
+  base::RunLoop().RunUntilIdle();
+
+  // The second socket should have connected.
+  EXPECT_TRUE(sockets[1]->IsConnected());
+
+  // Allow the second socket to continue its connection.
+  sockets[1]->RestartPausedConnect();
+
+  callback4.WaitForResult();
+
+  // Pending connections should ultimately succeed.
+  for (std::vector<MockSSLClientSocket*>::iterator it = ++sockets.begin();
+       it != sockets.end();
+       ++it) {
+    EXPECT_TRUE((*it)->IsConnected());
+  }
+}
+
+// Make sure that no sockets connect before the "leader" socket,
+// given that the leader has a successful connection.
+TEST_P(SSLClientSocketPoolTest, SimultaneousConnectJobsSuccess) {

[mmenke, 2014/07/22 16:24:11]

Suggest also a test with multiple failures, where we only let one through at a
time.

[mshelley, 2014/07/23 03:49:57]

Done.

+  SSLClientSocketPool::set_enable_connect_job_waiting(true);
+
+  StaticSocketDataProvider data1;
+  StaticSocketDataProvider data2;
+  StaticSocketDataProvider data3;
+  socket_factory_.AddSocketDataProvider(&data1);
+  socket_factory_.AddSocketDataProvider(&data2);
+  socket_factory_.AddSocketDataProvider(&data3);
+
+  SSLSocketDataProvider ssl(ASYNC, OK);
+  ssl.is_in_session_cache = false;
+  ssl.should_block_in_connect = true;
+  SSLSocketDataProvider ssl2(ASYNC, OK);
+  ssl2.is_in_session_cache = false;
+  SSLSocketDataProvider ssl3(ASYNC, OK);
+  ssl3.is_in_session_cache = false;
+  socket_factory_.AddSSLSocketDataProvider(&ssl);
+  socket_factory_.AddSSLSocketDataProvider(&ssl2);
+  socket_factory_.AddSSLSocketDataProvider(&ssl3);
+
+  CreatePool(true, false, false);
+
+  scoped_refptr<SSLSocketParams> params1 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  scoped_refptr<SSLSocketParams> params2 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  scoped_refptr<SSLSocketParams> params3 =
+      SSLParams(ProxyServer::SCHEME_DIRECT, false);
+  ClientSocketHandle handle1;
+  ClientSocketHandle handle2;
+  ClientSocketHandle handle3;
+  TestCompletionCallback callback1;
+  TestCompletionCallback callback2;
+  TestCompletionCallback callback3;
+
+  handle1.Init(
+      "b", params1, MEDIUM, callback1.callback(), pool_.get(), BoundNetLog());
+  handle2.Init(
+      "b", params2, MEDIUM, callback2.callback(), pool_.get(), BoundNetLog());
+  handle3.Init(
+      "b", params3, MEDIUM, callback3.callback(), pool_.get(), BoundNetLog());
+
+  // Allow the connections to proceed until the first socket has finished
+  // connecting.
+  base::RunLoop().RunUntilIdle();
+
+  std::vector<MockSSLClientSocket*> sockets =
+      socket_factory_.ssl_client_sockets();
+
+  EXPECT_TRUE(sockets[0]->IsConnected());
+  for (std::vector<MockSSLClientSocket*>::iterator it = ++sockets.begin();
+       it != sockets.end();
+       ++it) {
+    EXPECT_FALSE((*it)->IsConnected());
+  }
+
+  sockets[0]->RestartPausedConnect();
+
+  callback3.WaitForResult();
+
+  EXPECT_TRUE(handle1.socket()->IsConnected());
+  EXPECT_TRUE(handle2.socket()->IsConnected());
+  EXPECT_TRUE(handle3.socket()->IsConnected());
+}
+
 TEST_P(SSLClientSocketPoolTest, TCPFail) {
   StaticSocketDataProvider data;
   data.set_connect_data(MockConnect(SYNCHRONOUS, ERR_CONNECTION_FAILED));
   socket_factory_.AddSocketDataProvider(&data);
 
   CreatePool(true /* tcp pool */, false, false);
   scoped_refptr<SSLSocketParams> params = SSLParams(ProxyServer::SCHEME_DIRECT,
                                                     false);
 
   ClientSocketHandle handle;
@@ skipping 687 matching lines @@
   ssl.channel_id_sent = true;
   ssl.SetNextProto(GetParam());
   TestIPPoolingDisabled(&ssl);
 }
 
 // It would be nice to also test the timeouts in SSLClientSocketPool.
 
 }  // namespace
 
 }  // namespace net