Introduce ChannelMojo

ipc/ipc_test_channel_listener.cc

Index: ipc/ipc_test_channel_listener.cc
diff --git a/ipc/ipc_test_channel_listener.cc b/ipc/ipc_test_channel_listener.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e98f6b7ee156cc12c979321711493f32f40c76d0
--- /dev/null
+++ b/ipc/ipc_test_channel_listener.cc
@@ -0,0 +1,62 @@
+// Copyright 2014 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 "ipc/ipc_test_channel_listener.h"
+
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_sender.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace IPC {
+
+// static
+void TestChannelListener::SendOneMessage(IPC::Sender* sender,
+                                         const char* text) {
+  static int message_index = 0;
+
+  IPC::Message* message = new IPC::Message(0,
+                                           2,
+                                           IPC::Message::PRIORITY_NORMAL);
+  message->WriteInt(message_index++);
+  message->WriteString(std::string(text));
+
+  // Make sure we can handle large messages.
+  char junk[kLongMessageStringNumBytes];
+  memset(junk, 'a', sizeof(junk)-1);
+  junk[sizeof(junk)-1] = 0;
+  message->WriteString(std::string(junk));
+
+  sender->Send(message);
+}
+
+
+bool TestChannelListener::OnMessageReceived(const IPC::Message& message) {
+  PickleIterator iter(message);
+
+  int ignored;
+  EXPECT_TRUE(iter.ReadInt(&ignored));
+  std::string data;
+  EXPECT_TRUE(iter.ReadString(&data));
+  std::string big_string;
+  EXPECT_TRUE(iter.ReadString(&big_string));
+  EXPECT_EQ(kLongMessageStringNumBytes - 1, big_string.length());
+
+  SendNextMessage();
+  return true;
+}
+
+void TestChannelListener::OnChannelError() {
+  // There is a race when closing the channel so the last message may be lost.
+  EXPECT_LE(messages_left_, 1);
+  base::MessageLoop::current()->Quit();
+}
+
+void TestChannelListener::SendNextMessage() {
+  if (--messages_left_ <= 0)
+    base::MessageLoop::current()->Quit();
+  else
+    SendOneMessage(sender_, "Foo");
+}
+
+}