我正在尝试了解Google测试装置的工作原理。假设我有以下代码:classPhraseTest:public::testing::Test{protected:virtualvoidSetUp(){phraseClass*myPhrase1=newcreatePhrase("1234567890");phraseClass*myPhrase2=newcreatePhrase("1234567890");}virtualvoidTearDown(){delete*myPhrase1;delete*myPhrase2;}};TEST_F(PhraseTest,OperatorTest){A