ipc/ipc_channel_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "build/build_config.h"
   6
   7 #if defined(OS_WIN)
   8 #include <windows.h>
   9 #endif
  10
  11 #include <string>
  12
  13 #include "base/message_loop/message_loop.h"
  14 #include "base/pickle.h"
  15 #include "base/threading/thread.h"
  16 #include "ipc/ipc_message.h"
  17 #include "ipc/ipc_test_base.h"
  18 #include "ipc/ipc_test_channel_listener.h"
  19
  20 namespace {
  21
  22 class IPCChannelTest : public IPCTestBase {
  23 };
  24
  25 // TODO(viettrungluu): Move to a separate IPCMessageTest.
  26 TEST_F(IPCChannelTest, BasicMessageTest) {
  27   int v1 = 10;
  28   std::string v2("foobar");
  29   std::wstring v3(L"hello world");
  30
  31   IPC::Message m(0, 1, IPC::Message::PRIORITY_NORMAL);
  32   EXPECT_TRUE(m.WriteInt(v1));
  33   EXPECT_TRUE(m.WriteString(v2));
  34   EXPECT_TRUE(m.WriteWString(v3));
  35
  36   PickleIterator iter(m);
  37
  38   int vi;
  39   std::string vs;
  40   std::wstring vw;
  41
  42   EXPECT_TRUE(m.ReadInt(&iter, &vi));
  43   EXPECT_EQ(v1, vi);
  44
  45   EXPECT_TRUE(m.ReadString(&iter, &vs));
  46   EXPECT_EQ(v2, vs);
  47
  48   EXPECT_TRUE(m.ReadWString(&iter, &vw));
  49   EXPECT_EQ(v3, vw);
  50
  51   // should fail
  52   EXPECT_FALSE(m.ReadInt(&iter, &vi));
  53   EXPECT_FALSE(m.ReadString(&iter, &vs));
  54   EXPECT_FALSE(m.ReadWString(&iter, &vw));
  55 }
  56
  57 TEST_F(IPCChannelTest, ChannelTest) {
  58   Init("GenericClient");
  59
  60   // Set up IPC channel and start client.
  61   IPC::TestChannelListener listener;
  62   CreateChannel(&listener);
  63   listener.Init(sender());
  64   ASSERT_TRUE(ConnectChannel());
  65   ASSERT_TRUE(StartClient());
  66
  67   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
  68
  69   // Run message loop.
  70   base::MessageLoop::current()->Run();
  71
  72   // Close the channel so the client's OnChannelError() gets fired.
  73   channel()->Close();
  74
  75   EXPECT_TRUE(WaitForClientShutdown());
  76   DestroyChannel();
  77 }
  78
  79 // TODO(viettrungluu): Move to a separate IPCChannelWinTest.
  80 #if defined(OS_WIN)
  81 TEST_F(IPCChannelTest, ChannelTestExistingPipe) {
  82   Init("GenericClient");
  83
  84   // Create pipe manually using the standard Chromium name and set up IPC
  85   // channel.
  86   IPC::TestChannelListener listener;
  87   std::string name("\\\\.\\pipe\\chrome.");
  88   name.append(GetChannelName("GenericClient"));
  89   HANDLE pipe = CreateNamedPipeA(name.c_str(),
  90                                  PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED |
  91                                      FILE_FLAG_FIRST_PIPE_INSTANCE,
  92                                  PIPE_TYPE_BYTE | PIPE_READMODE_BYTE,
  93                                  1,
  94                                  4096,
  95                                  4096,
  96                                  5000,
  97                                  NULL);
  98   CreateChannelFromChannelHandle(IPC::ChannelHandle(pipe), &listener);
  99   CloseHandle(pipe);  // The channel duplicates the handle.
 100   listener.Init(sender());
 101
 102   // Connect to channel and start client.
 103   ASSERT_TRUE(ConnectChannel());
 104   ASSERT_TRUE(StartClient());
 105
 106   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 107
 108   // Run message loop.
 109   base::MessageLoop::current()->Run();
 110
 111   // Close the channel so the client's OnChannelError() gets fired.
 112   channel()->Close();
 113
 114   EXPECT_TRUE(WaitForClientShutdown());
 115   DestroyChannel();
 116 }
 117 #endif  // defined (OS_WIN)
 118
 119 TEST_F(IPCChannelTest, ChannelProxyTest) {
 120   Init("GenericClient");
 121
 122   base::Thread thread("ChannelProxyTestServer");
 123   base::Thread::Options options;
 124   options.message_loop_type = base::MessageLoop::TYPE_IO;
 125   thread.StartWithOptions(options);
 126
 127   // Set up IPC channel proxy.
 128   IPC::TestChannelListener listener;
 129   CreateChannelProxy(&listener, thread.message_loop_proxy().get());
 130   listener.Init(sender());
 131
 132   ASSERT_TRUE(StartClient());
 133
 134   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 135
 136   // Run message loop.
 137   base::MessageLoop::current()->Run();
 138
 139   EXPECT_TRUE(WaitForClientShutdown());
 140
 141   // Destroy the channel proxy before shutting down the thread.
 142   DestroyChannelProxy();
 143   thread.Stop();
 144 }
 145
 146 class ChannelListenerWithOnConnectedSend : public IPC::TestChannelListener {
 147  public:
 148   ChannelListenerWithOnConnectedSend() {}
 149   ~ChannelListenerWithOnConnectedSend() override {}
 150
 151   void OnChannelConnected(int32 peer_pid) override {
 152     SendNextMessage();
 153   }
 154 };
 155
 156 #if defined(OS_WIN)
 157 // Acting flakey in Windows. http://crbug.com/129595
 158 #define MAYBE_SendMessageInChannelConnected DISABLED_SendMessageInChannelConnected
 159 #else
 160 #define MAYBE_SendMessageInChannelConnected SendMessageInChannelConnected
 161 #endif
 162 // This tests the case of a listener sending back an event in its
 163 // OnChannelConnected handler.
 164 TEST_F(IPCChannelTest, MAYBE_SendMessageInChannelConnected) {
 165   Init("GenericClient");
 166
 167   // Set up IPC channel and start client.
 168   ChannelListenerWithOnConnectedSend listener;
 169   CreateChannel(&listener);
 170   listener.Init(sender());
 171   ASSERT_TRUE(ConnectChannel());
 172   ASSERT_TRUE(StartClient());
 173
 174   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 175
 176   // Run message loop.
 177   base::MessageLoop::current()->Run();
 178
 179   // Close the channel so the client's OnChannelError() gets fired.
 180   channel()->Close();
 181
 182   EXPECT_TRUE(WaitForClientShutdown());
 183   DestroyChannel();
 184 }
 185
 186 MULTIPROCESS_IPC_TEST_CLIENT_MAIN(GenericClient) {
 187   base::MessageLoopForIO main_message_loop;
 188   IPC::TestChannelListener listener;
 189
 190   // Set up IPC channel.
 191   scoped_ptr<IPC::Channel> channel(IPC::Channel::CreateClient(
 192       IPCTestBase::GetChannelName("GenericClient"),
 193       &listener));
 194   CHECK(channel->Connect());
 195   listener.Init(channel.get());
 196   IPC::TestChannelListener::SendOneMessage(channel.get(), "hello from child");
 197
 198   base::MessageLoop::current()->Run();
 199   return 0;
 200 }
 201
 202 }  // namespace