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/pickle.h"
  14 #include "base/strings/string16.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "base/threading/thread.h"
  17 #include "ipc/ipc_message.h"
  18 #include "ipc/ipc_test_base.h"
  19 #include "ipc/ipc_test_channel_listener.h"
  20
  21 namespace {
  22
  23 class IPCChannelTest : public IPCTestBase {
  24 };
  25
  26 // TODO(viettrungluu): Move to a separate IPCMessageTest.
  27 TEST_F(IPCChannelTest, BasicMessageTest) {
  28   int v1 = 10;
  29   std::string v2("foobar");
  30   base::string16 v3(base::ASCIIToUTF16("hello world"));
  31
  32   IPC::Message m(0, 1, IPC::Message::PRIORITY_NORMAL);
  33   EXPECT_TRUE(m.WriteInt(v1));
  34   EXPECT_TRUE(m.WriteString(v2));
  35   EXPECT_TRUE(m.WriteString16(v3));
  36
  37   base::PickleIterator iter(m);
  38
  39   int vi;
  40   std::string vs;
  41   base::string16 vs16;
  42
  43   EXPECT_TRUE(iter.ReadInt(&vi));
  44   EXPECT_EQ(v1, vi);
  45
  46   EXPECT_TRUE(iter.ReadString(&vs));
  47   EXPECT_EQ(v2, vs);
  48
  49   EXPECT_TRUE(iter.ReadString16(&vs16));
  50   EXPECT_EQ(v3, vs16);
  51
  52   // should fail
  53   EXPECT_FALSE(iter.ReadInt(&vi));
  54   EXPECT_FALSE(iter.ReadString(&vs));
  55   EXPECT_FALSE(iter.ReadString16(&vs16));
  56 }
  57
  58 TEST_F(IPCChannelTest, ChannelTest) {
  59   Init("GenericClient");
  60
  61   // Set up IPC channel and start client.
  62   IPC::TestChannelListener listener;
  63   CreateChannel(&listener);
  64   listener.Init(sender());
  65   ASSERT_TRUE(ConnectChannel());
  66   ASSERT_TRUE(StartClient());
  67
  68   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
  69
  70   // Run message loop.
  71   base::MessageLoop::current()->Run();
  72
  73   // Close the channel so the client's OnChannelError() gets fired.
  74   channel()->Close();
  75
  76   EXPECT_TRUE(WaitForClientShutdown());
  77   DestroyChannel();
  78 }
  79
  80 // TODO(viettrungluu): Move to a separate IPCChannelWinTest.
  81 #if defined(OS_WIN)
  82 TEST_F(IPCChannelTest, ChannelTestExistingPipe) {
  83   Init("GenericClient");
  84
  85   // Create pipe manually using the standard Chromium name and set up IPC
  86   // channel.
  87   IPC::TestChannelListener listener;
  88   std::string name("\\\\.\\pipe\\chrome.");
  89   name.append(GetChannelName("GenericClient"));
  90   HANDLE pipe = CreateNamedPipeA(name.c_str(),
  91                                  PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED |
  92                                      FILE_FLAG_FIRST_PIPE_INSTANCE,
  93                                  PIPE_TYPE_BYTE | PIPE_READMODE_BYTE,
  94                                  1,
  95                                  4096,
  96                                  4096,
  97                                  5000,
  98                                  NULL);
  99   CreateChannelFromChannelHandle(IPC::ChannelHandle(pipe), &listener);
 100   CloseHandle(pipe);  // The channel duplicates the handle.
 101   listener.Init(sender());
 102
 103   // Connect to channel and start client.
 104   ASSERT_TRUE(ConnectChannel());
 105   ASSERT_TRUE(StartClient());
 106
 107   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 108
 109   // Run message loop.
 110   base::MessageLoop::current()->Run();
 111
 112   // Close the channel so the client's OnChannelError() gets fired.
 113   channel()->Close();
 114
 115   EXPECT_TRUE(WaitForClientShutdown());
 116   DestroyChannel();
 117 }
 118 #endif  // defined (OS_WIN)
 119
 120 TEST_F(IPCChannelTest, ChannelProxyTest) {
 121   Init("GenericClient");
 122
 123   base::Thread thread("ChannelProxyTestServer");
 124   base::Thread::Options options;
 125   options.message_loop_type = base::MessageLoop::TYPE_IO;
 126   thread.StartWithOptions(options);
 127
 128   // Set up IPC channel proxy.
 129   IPC::TestChannelListener listener;
 130   CreateChannelProxy(&listener, thread.task_runner().get());
 131   listener.Init(sender());
 132
 133   ASSERT_TRUE(StartClient());
 134
 135   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 136
 137   // Run message loop.
 138   base::MessageLoop::current()->Run();
 139
 140   EXPECT_TRUE(WaitForClientShutdown());
 141
 142   // Destroy the channel proxy before shutting down the thread.
 143   DestroyChannelProxy();
 144   thread.Stop();
 145 }
 146
 147 class ChannelListenerWithOnConnectedSend : public IPC::TestChannelListener {
 148  public:
 149   ChannelListenerWithOnConnectedSend() {}
 150   ~ChannelListenerWithOnConnectedSend() override {}
 151
 152   void OnChannelConnected(int32 peer_pid) override {
 153     SendNextMessage();
 154   }
 155 };
 156
 157 #if defined(OS_WIN)
 158 // Acting flakey in Windows. http://crbug.com/129595
 159 #define MAYBE_SendMessageInChannelConnected DISABLED_SendMessageInChannelConnected
 160 #else
 161 #define MAYBE_SendMessageInChannelConnected SendMessageInChannelConnected
 162 #endif
 163 // This tests the case of a listener sending back an event in its
 164 // OnChannelConnected handler.
 165 TEST_F(IPCChannelTest, MAYBE_SendMessageInChannelConnected) {
 166   Init("GenericClient");
 167
 168   // Set up IPC channel and start client.
 169   ChannelListenerWithOnConnectedSend listener;
 170   CreateChannel(&listener);
 171   listener.Init(sender());
 172   ASSERT_TRUE(ConnectChannel());
 173   ASSERT_TRUE(StartClient());
 174
 175   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 176
 177   // Run message loop.
 178   base::MessageLoop::current()->Run();
 179
 180   // Close the channel so the client's OnChannelError() gets fired.
 181   channel()->Close();
 182
 183   EXPECT_TRUE(WaitForClientShutdown());
 184   DestroyChannel();
 185 }
 186
 187 MULTIPROCESS_IPC_TEST_CLIENT_MAIN(GenericClient) {
 188   base::MessageLoopForIO main_message_loop;
 189   IPC::TestChannelListener listener;
 190
 191   // Set up IPC channel.
 192   scoped_ptr<IPC::Channel> channel(IPC::Channel::CreateClient(
 193       IPCTestBase::GetChannelName("GenericClient"), &listener, nullptr));
 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