closed #4761, fix zfighting between tests

tests/cpp-tests/Classes/NodeTest/NodeTest.cpp

@@ -1053,6 +1053,7 @@ void CameraTest1::onEnter()
 void CameraTest1::onExit()
 {
     Director::getInstance()->setProjection(_preProjection);
+    Director::getInstance()->setDepthTest(false);
     TestCocosNodeDemo::onExit();
 }
 
@@ -1100,6 +1101,7 @@ void CameraTest2::onEnter()
 void CameraTest2::onExit()
 {
     Director::getInstance()->setProjection(_preProjection);
+    Director::getInstance()->setDepthTest(false);
     TestCocosNodeDemo::onExit();
 }
 

tests/cpp-tests/Classes/TileMapTest/TileMapTest.cpp

@@ -118,6 +118,11 @@ void TileDemo::onEnter()
     BaseTest::onEnter();
 }
 
+void TileMapTestScene::onExit()
+{
+    Layer::onExit();
+    Director::getInstance()->setDepthTest(false);
+}
 void TileDemo::restartCallback(Ref* sender)
 {
     auto s = new TileMapTestScene();
@@ -166,6 +171,7 @@ void TileMapTestScene::runThisTest()
     Director::getInstance()->replaceScene(this);
 }
 
+
 //------------------------------------------------------------------
 //
 // TileMapTest

tests/cpp-tests/Classes/TileMapTest/TileMapTest.h

@@ -14,6 +14,7 @@ public:
     virtual std::string title() const override;
     virtual std::string subtitle() const override;
     virtual void onEnter() override;
+    virtual void onExit()override;
 
     void restartCallback(Ref* sender);
     void nextCallback(Ref* sender);

tests/cpp-tests/Classes/TransitionsTest/TransitionsTest.cpp

@@ -380,6 +380,7 @@ void TestLayer1::onExitTransitionDidStart()
 void TestLayer1::onExit()
 {
     Layer::onExit();
+    Director::getInstance()->setDepthTest(false);
     log("Scene 1 onExit");
 }
 
@@ -509,5 +510,6 @@ void TestLayer2::onExitTransitionDidStart()
 void TestLayer2::onExit()
 {
     Layer::onExit();
+    Director::getInstance()->setDepthTest(false);
     log("Scene 2 onExit");
 }