Fix how we were using TbInterfaces and disallow operator=() and the copy constructor.

The reason is that this will cause a crash:

TbInterfaces foo = TbInterfaces("blah");


It relies on the generated copy constructor (or assignment operator), which copies the
pointer values from a temporary object.  After |foo| in this case has been initialized
with values from the temporary object, the temp goes out of scope and is deleted.
The result is that |foo| has been initialized with pointers do a deleted object.

Also fixing expectations for the return value of VoE Release() calls after I checked
in my change that makes the VoiceEngine per-object ref counted and not per-interface.
Review URL: https://webrtc-codereview.appspot.com/509005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2128 4adac7df-926f-26a2-2b94-8c16560cd09d

src/video_engine/test/auto_test/source/vie_autotest_base.cc

@@ -215,7 +215,9 @@ void ViEAutoTest::ViEBaseAPITest() {
   // Clean up voice engine
   EXPECT_EQ(0, ptrVieNetwork->Release());
   EXPECT_EQ(0, ptrViEBase->SetVoiceEngine(NULL));
-  EXPECT_EQ(0, ptrVoEBase->Release());
+  // VoiceEngine reference counting is per object, not per interface, so
+  // Release should return != 0.
+  EXPECT_NE(0, ptrVoEBase->Release());
   EXPECT_TRUE(webrtc::VoiceEngine::Delete(ptrVoE));
 
   webrtc::ViEBase* ptrViEBase2 = webrtc::ViEBase::GetInterface(ptrViE);

src/video_engine/test/auto_test/source/vie_autotest_codec.cc

@@ -109,7 +109,7 @@ public:
 };
 
 void ViEAutoTest::ViECodecStandardTest() {
-  TbInterfaces interfaces = TbInterfaces("ViECodecStandardTest");
+  TbInterfaces interfaces("ViECodecStandardTest");
 
   TbCaptureDevice capture_device = TbCaptureDevice(interfaces);
   int capture_id = capture_device.captureId;
@@ -273,7 +273,7 @@ void ViEAutoTest::ViECodecExtendedTest() {
     ViECodecStandardTest();
     ViECodecExternalCodecTest();
 
-    TbInterfaces interfaces = TbInterfaces("ViECodecExtendedTest");
+    TbInterfaces interfaces("ViECodecExtendedTest");
     webrtc::ViEBase* base = interfaces.base;
     webrtc::ViECapture* capture = interfaces.capture;
     webrtc::ViERender* render = interfaces.render;

src/video_engine/test/auto_test/source/vie_autotest_file.cc

@@ -39,7 +39,7 @@ void ViEAutoTest::ViEFileStandardTest()
     {
         ViETest::Log("Starting a loopback call...");
 
-        TbInterfaces interfaces = TbInterfaces("ViEFileStandardTest");
+        TbInterfaces interfaces("ViEFileStandardTest");
 
         webrtc::VideoEngine* ptrViE = interfaces.video_engine;
         webrtc::ViEBase* ptrViEBase = interfaces.base;
@@ -464,8 +464,9 @@ void ViEAutoTest::ViEFileStandardTest()
         EXPECT_EQ(0, ptrViEBase->DisconnectAudioChannel(videoChannel));
         EXPECT_EQ(0, ptrViEBase->SetVoiceEngine(NULL));
         EXPECT_EQ(0, ptrVEBase->DeleteChannel(audioChannel));
-        EXPECT_EQ(0, ptrVEBase->Release());
-        EXPECT_EQ(0, ptrVECodec->Release());
+        // VoE reference counting is per-object, so we use EXPECT_NE
+        EXPECT_NE(0, ptrVEBase->Release());
+        EXPECT_NE(0, ptrVECodec->Release());
         EXPECT_TRUE(webrtc::VoiceEngine::Delete(ptrVEEngine));
 
         EXPECT_EQ(0, ptrViEBase->StopReceive(videoChannel));

src/video_engine/test/auto_test/source/vie_file_based_comparison_tests.cc

@@ -87,7 +87,7 @@ bool ViEFileBasedComparisonTests::TestCodecs(
     ViEToFileRenderer* local_file_renderer,
     ViEToFileRenderer* remote_file_renderer) {
 
-  TbInterfaces interfaces = TbInterfaces("TestCodecs");
+  TbInterfaces interfaces("TestCodecs");
 
   ViEFakeCamera fake_camera(interfaces.capture);
   if (!fake_camera.StartCameraInNewThread(i420_video_file, width, height)) {
@@ -127,7 +127,7 @@ void ViEFileBasedComparisonTests::TestFullStack(
     ViEToFileRenderer* local_file_renderer,
     ViEToFileRenderer* remote_file_renderer,
     FrameDropDetector* frame_drop_detector) {
-  TbInterfaces interfaces = TbInterfaces("TestFullStack");
+  TbInterfaces interfaces("TestFullStack");
 
   // Setup camera capturing from file.
   ViEFakeCamera fake_camera(interfaces.capture);

src/video_engine/test/libvietest/include/tb_interfaces.h

@@ -13,6 +13,7 @@
 
 #include <string>
 
+#include "constructor_magic.h"
 #include "common_types.h"
 #include "video_engine/include/vie_base.h"
 #include "video_engine/include/vie_capture.h"
@@ -31,7 +32,7 @@ class TbInterfaces
 {
 public:
     // Sets up all interfaces and creates a trace file
-    TbInterfaces(std::string test_name);
+    TbInterfaces(const std::string& test_name);
     ~TbInterfaces(void);
 
     webrtc::VideoEngine* video_engine;
@@ -47,6 +48,9 @@ public:
     int LastError() {
         return base->LastError();
     }
+
+private:
+    DISALLOW_COPY_AND_ASSIGN(TbInterfaces);
 };
 
 #endif  // WEBRTC_VIDEO_ENGINE_MAIN_TEST_AUTOTEST_INTERFACE_TB_INTERFACES_H_

src/video_engine/test/libvietest/testbed/tb_interfaces.cc

@@ -13,7 +13,17 @@
 #include "gtest/gtest.h"
 #include "testsupport/fileutils.h"
 
-TbInterfaces::TbInterfaces(std::string test_name) {
+TbInterfaces::TbInterfaces(const std::string& test_name) :
+    video_engine(NULL),
+    base(NULL),
+    capture(NULL),
+    render(NULL),
+    rtp_rtcp(NULL),
+    codec(NULL),
+    network(NULL),
+    image_process(NULL),
+    encryption(NULL)
+{
     std::string complete_path =
         webrtc::test::OutputPath() + test_name + "_trace.txt";
 
@@ -53,15 +63,23 @@ TbInterfaces::TbInterfaces(std::string test_name) {
 TbInterfaces::~TbInterfaces(void)
 {
     EXPECT_EQ(0, encryption->Release());
+    encryption = NULL;
     EXPECT_EQ(0, image_process->Release());
+    image_process = NULL;
     EXPECT_EQ(0, codec->Release());
+    codec = NULL;
     EXPECT_EQ(0, capture->Release());
+    capture = NULL;
     EXPECT_EQ(0, render->Release());
+    render = NULL;
     EXPECT_EQ(0, rtp_rtcp->Release());
+    rtp_rtcp = NULL;
     EXPECT_EQ(0, network->Release());
+    network = NULL;
     EXPECT_EQ(0, base->Release());
+    base = NULL;
     EXPECT_TRUE(webrtc::VideoEngine::Delete(video_engine)) <<
         "Since we have released all interfaces at this point, deletion "
         "should be successful.";
-
+    video_engine = NULL;
 }