單元測試C++ setup（）和teardown（）

Question

我目前在學習單元測試google mock谷歌模擬中virtual void SetUp()和virtual void TearDown()的常用用法是什麼？有代碼的示例場景會很好。提前致謝。

Answer 1

這是爲了在每個測試的開始和結束時對要執行的代碼進行分解，以避免重複它。

例如：

namespace { 
    class FooTest : public ::testing::Test { 

    protected: 
    Foo * pFoo_; 

    FooTest() { 
    } 

    virtual ~FooTest() { 
    } 

    virtual void SetUp() { 
     pFoo_ = new Foo(); 
    } 

    virtual void TearDown() { 
     delete pFoo_; 
    } 

    }; 

    TEST_F(FooTest, CanDoBar) { 
     // You can assume that the code in SetUp has been executed 
     //   pFoo_->bar(...) 
     // The code in TearDown will be run after the end of this test 
    } 

    TEST_F(FooTest, CanDoBaz) { 
    // The code from SetUp will have been executed *again* 
    // pFoo_->baz(...) 
     // The code in TearDown will be run *again* after the end of this test 

    } 

} // Namespace