issue #4629: add test case for group command

tests/cpp-tests/Classes/NewRendererTest/NewRendererTest.cpp

@@ -35,6 +35,7 @@ static std::function<Layer*()> createFunctions[] =
 {
     CL(NewSpriteTest),
     CL(NewSpriteBatchTest),
+    CL(GroupCommandTest),
     CL(NewClippingNodeTest),
     CL(NewDrawNodeTest),
     CL(NewCullingTest),
@@ -222,6 +223,28 @@ std::string NewSpriteTest::subtitle() const
     return "SpriteTest";
 }
 
+GroupCommandTest::GroupCommandTest()
+{
+    auto sprite = Sprite::create("Images/grossini.png");
+    Size winSize = Director::getInstance()->getWinSize();
+    sprite->setPosition(winSize.width/2,winSize.height/2);
+    addChild(sprite);
+}
+
+GroupCommandTest::~GroupCommandTest()
+{
+}
+
+std::string GroupCommandTest::title() const
+{
+    return "Renderer";
+}
+
+std::string GroupCommandTest::subtitle() const
+{
+    return "GroupCommandTest: You should see a sprite";
+}
+
 //-------- New Sprite Batch Test
 
 NewSpriteBatchTest::NewSpriteBatchTest()

tests/cpp-tests/Classes/NewRendererTest/NewRendererTest.h

@@ -56,6 +56,19 @@ protected:
     virtual ~NewSpriteTest();
 };
 
+class GroupCommandTest : public MultiSceneTest
+{
+public:
+    CREATE_FUNC(GroupCommandTest);
+    
+    virtual std::string title() const override;
+    virtual std::string subtitle() const override;
+    
+protected:
+    GroupCommandTest();
+    virtual ~GroupCommandTest();
+};
+
 class NewSpriteBatchTest : public MultiSceneTest
 {
 public: