Revert of Moved webrtc/test/channel_transport/ into webrtc/voice_engine/test/

webrtc/test/channel_transport/udp_socket_manager_unittest.cc

+/*
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+// Tests for the UdpSocketManager interface.
+// Note: This tests UdpSocketManager together with UdpSocketWrapper,
+// due to the way the code is full of static-casts to the platform dependent
+// subtypes.
+// It also uses the static UdpSocketManager object.
+// The most important property of these tests is that they do not leak memory.
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "webrtc/system_wrappers/include/trace.h"
+#include "webrtc/test/channel_transport/udp_socket_manager_wrapper.h"
+#include "webrtc/test/channel_transport/udp_socket_wrapper.h"
+
+namespace webrtc {
+namespace test {
+
+TEST(UdpSocketManager, CreateCallsInitAndDoesNotLeakMemory) {
+  int32_t id = 42;
+  uint8_t threads = 1;
+  UdpSocketManager* mgr = UdpSocketManager::Create(id, threads);
+  // Create is supposed to have called init on the object.
+  EXPECT_FALSE(mgr->Init(id, threads))
+      << "Init should return false since Create is supposed to call it.";
+  UdpSocketManager::Return();
+}
+
+// Creates a socket and adds it to the socket manager, and then removes it
+// before destroying the socket manager.
+TEST(UdpSocketManager, AddAndRemoveSocketDoesNotLeakMemory) {
+  int32_t id = 42;
+  uint8_t threads = 1;
+  UdpSocketManager* mgr = UdpSocketManager::Create(id, threads);
+  UdpSocketWrapper* socket =
+      UdpSocketWrapper::CreateSocket(id,
+                                     mgr,
+                                     NULL,  // CallbackObj
+                                     NULL,  // IncomingSocketCallback
+                                     false,  // ipV6Enable
+                                     false);  // disableGQOS
+  // The constructor will do AddSocket on the manager.
+  // RemoveSocket indirectly calls Delete.
+  EXPECT_EQ(true, mgr->RemoveSocket(socket));
+  UdpSocketManager::Return();
+}
+
+// Creates a socket and add it to the socket manager, but does not remove it
+// before destroying the socket manager.
+// On Posix, this destroys the socket.
+// On Winsock2 Windows, it enters an infinite wait for all the sockets
+// to go away.
+TEST(UdpSocketManager, UnremovedSocketsGetCollectedAtManagerDeletion) {
+#if defined(_WIN32)
+  // It's hard to test an infinite wait, so we don't.
+#else
+  int32_t id = 42;
+  uint8_t threads = 1;
+  UdpSocketManager* mgr = UdpSocketManager::Create(id, threads);
+  UdpSocketWrapper* unused_socket = UdpSocketWrapper::CreateSocket(
+      id,
+      mgr,
+      NULL,  // CallbackObj
+      NULL,  // IncomingSocketCallback
+      false,  // ipV6Enable
+      false);  // disableGQOS
+  // The constructor will do AddSocket on the manager.
+  // Call a member funtion to work around "set but not used" compliation
+  // error on ChromeOS ARM.
+  unused_socket->SetEventToNull();
+  unused_socket = NULL;
+  UdpSocketManager::Return();
+#endif
+}
+
+}  // namespace test
+}  // namespace webrtc