TEST(GlobalConfigurationTest, configurationDataTest) 
 TEST(GlobalConfigurationTest, noConfigureFileTest)

// Configure.h 
 #pragma once 

 #include <string> 
 #include <vector> 

 class Configure 
 { 
 private: 
    std::vector<std::string> vItems; 

 public: 
    int addItem(std::string str); 

    std::string getItem(int index); 

    int getSize(); 
 }; 

 // Configure.cpp 
 #include "Configure.h" 

 #include <algorithm> 

 /** 
 * @brief Add an item to configuration store. Duplicate item will be ignored 
 * @param str item to be stored 
 * @return the index of added configuration item 
 */ 
 int Configure::addItem(std::string str) 
 { 
std::vector<std::string>::const_iterator vi=std::find(vItems.begin(), vItems.end(), str); 
    if (vi != vItems.end()) 
        return vi - vItems.begin(); 

    vItems.push_back(str); 
    return vItems.size() - 1; 
 } 

 /** 
 * @brief Return the configure item at specified index. 
 * If the index is out of range, "" will be returned 
 * @param index the index of item 
 * @return the item at specified index 
 */ 
 std::string Configure::getItem(int index) 
 { 
    if (index >= vItems.size()) 
        return ""; 
    else 
        return vItems.at(index); 
 } 

 /// Retrieve the information about how many configuration items we have had 
 int Configure::getSize() 
 { 
    return vItems.size(); 
 } 

 // ConfigureTest.cpp 
 #include <gtest/gtest.h> 

 #include "Configure.h" 

 TEST(ConfigureTest, addItem) 
 { 
    // do some initialization 
    Configure* pc = new Configure(); 
    
    // validate the pointer is not null 
    ASSERT_TRUE(pc != NULL); 

    // call the method we want to test 
    pc->addItem("A"); 
    pc->addItem("B"); 
    pc->addItem("A"); 

    // validate the result after operation 
    EXPECT_EQ(pc->getSize(), 2); 
    EXPECT_STREQ(pc->getItem(0).c_str(), "A"); 
    EXPECT_STREQ(pc->getItem(1).c_str(), "B"); 
    EXPECT_STREQ(pc->getItem(10).c_str(), ""); 

    delete pc; 
 }

#include <gtest/gtest.h> 

 int main(int argc, char** argv) { 
    testing::InitGoogleTest(&argc, argv); 

    // Runs all tests using Google Test. 
    return RUN_ALL_TESTS(); 
 }

<UserMacro 
    Name="BoostDir" 
    Value="$(BOOST_DIR)" 
 />

#include <gmock/gmock.h>  // Brings in Google Mock. 

 class MockTurtle : public Turtle { 
    MOCK_METHOD0(PenUp, void()); 
    MOCK_METHOD0(PenDown, void()); 
    MOCK_METHOD1(Forward, void(int distance)); 
    MOCK_METHOD1(Turn, void(int degrees)); 
    MOCK_METHOD2(GoTo, void(int x, int y)); 
    MOCK_CONST_METHOD0(GetX, int()); 
    MOCK_CONST_METHOD0(GetY, int()); 
 };

using testing::Return;                              // #1，必要的声明

 TEST(BarTest, DoesThis) { 
    MockFoo foo;                                    // #2，创建 Mock 对象

    ON_CALL(foo, GetSize())                         // #3，设定 Mock 对象默认的行为（可选）
        .WillByDefault(Return(1)); 
    // ... other default actions ... 

    EXPECT_CALL(foo, Describe(5))                   // #4，设定期望对象被访问的方式及其响应
        .Times(3) 
        .WillRepeatedly(Return("Category 5")); 
    // ... other expectations ... 

    EXPECT_EQ("good", MyProductionFunction(&foo));  
    // #5，操作 Mock 对象并使用 googletest 提供的断言验证处理结果
 }                                                  
 // #6，当 Mock 对象被析构时， googlemock 会对结果进行验证以判断其行为是否与所有设定的预期一致

testing::NiceMock<MockFoo> nice_foo;

#include <gtest/gtest.h> 
 #include <gmock/gmock.h> 

 int main(int argc, char** argv) { 
    testing::InitGoogleMock(&argc, argv); 

    // Runs all tests using Google Test. 
    return RUN_ALL_TESTS(); 
 }

// Account.h 
 // basic application data class 
 #pragma once 

 #include <string> 

 class Account 
 { 
 private: 
    std::string accountId; 

    long balance; 

 public: 
    Account(); 

    Account(const std::string& accountId, long initialBalance); 

    void debit(long amount); 

    void credit(long amount); 

    long getBalance() const; 

    std::string getAccountId() const; 
 }; 

 // Account.cpp 
 #include "Account.h" 

 Account::Account() 
 { 
 } 

 Account::Account(const std::string& accountId, long initialBalance) 
 { 
    this->accountId = accountId; 
    this->balance = initialBalance; 
 } 

 void Account::debit(long amount) 
 { 
    this->balance -= amount; 
 } 

 void Account::credit(long amount) 
 { 
    this->balance += amount; 
 } 

 long Account::getBalance() const 
 { 
    return this->balance; 
 } 

 std::string Account::getAccountId() const 
 { 
    return accountId; 
 } 

 // AccountManager.h 
 // the interface of external services which should be mocked 
 #pragma once 

 #include <string> 

 #include "Account.h" 

 class AccountManager 
 { 
 public: 
    virtual Account findAccountForUser(const std::string& userId) = 0; 

    virtual void updateAccount(const Account& account) = 0; 
 }; 

 // AccountService.h 
 // the class to be tested 
 #pragma once 

 #include <string> 

 #include "Account.h" 
 #include "AccountManager.h" 

 class AccountService 
 { 
 private: 
    AccountManager* pAccountManager; 

 public: 
    AccountService(); 

    void setAccountManager(AccountManager* pManager); 
    void transfer(const std::string& senderId, 
               const std::string& beneficiaryId, long amount); 
 }; 

 // AccountService.cpp 
 #include "AccountService.h" 

 AccountService::AccountService() 
 { 
    this->pAccountManager = NULL; 
 } 

 void AccountService::setAccountManager(AccountManager* pManager) 
 { 
    this->pAccountManager = pManager; 
 } 

 void AccountService::transfer(const std::string& senderId, 
                  const std::string& beneficiaryId, long amount) 
 { 
    Account sender = this->pAccountManager->findAccountForUser(senderId); 

    Account beneficiary = this->pAccountManager->findAccountForUser(beneficiaryId); 

    sender.debit(amount); 

    beneficiary.credit(amount); 

    this->pAccountManager->updateAccount(sender); 

    this->pAccountManager->updateAccount(beneficiary); 
 }

// AccountServiceTest.cpp 
 // code to test AccountService 
 #include <map> 
 #include <string> 

 #include <gtest/gtest.h> 
 #include <gmock/gmock.h> 

 #include "../Account.h" 
 #include "../AccountService.h" 
 #include "../AccountManager.h" 

 // MockAccountManager, mock AccountManager with googlemock 
 class MockAccountManager : public AccountManager 
 { 
 public: 
    MOCK_METHOD1(findAccountForUser, Account(const std::string&)); 

    MOCK_METHOD1(updateAccount, void(const Account&)); 
 }; 

 // A facility class acts as an external DB 
 class AccountHelper 
 { 
 private: 
    std::map<std::string, Account> mAccount; 
             // an internal map to store all Accounts for test 

 public: 
    AccountHelper(std::map<std::string, Account>& mAccount); 

    void updateAccount(const Account& account); 

    Account findAccountForUser(const std::string& userId); 
 }; 

 AccountHelper::AccountHelper(std::map<std::string, Account>& mAccount) 
 { 
    this->mAccount = mAccount; 
 } 

 void AccountHelper::updateAccount(const Account& account) 
 { 
    this->mAccount[account.getAccountId()] = account; 
 } 

 Account AccountHelper::findAccountForUser(const std::string& userId) 
 { 
    if (this->mAccount.find(userId) != this->mAccount.end()) 
        return this->mAccount[userId]; 
    else 
        return Account(); 
 } 

 // Test case to test AccountService 
 TEST(AccountServiceTest, transferTest) 
 { 
    std::map<std::string, Account> mAccount; 
    mAccount["A"] = Account("A", 3000); 
    mAccount["B"] = Account("B", 2000); 
    AccountHelper helper(mAccount); 

    MockAccountManager* pManager = new MockAccountManager(); 

    // specify the behavior of MockAccountManager 
    // always invoke AccountHelper::findAccountForUser 
     // when AccountManager::findAccountForUser is invoked 
    EXPECT_CALL(*pManager, findAccountForUser(testing::_)).WillRepeatedly( 
        testing::Invoke(&helper, &AccountHelper::findAccountForUser)); 

    // always invoke AccountHelper::updateAccount 
    //when AccountManager::updateAccount is invoked 
    EXPECT_CALL(*pManager, updateAccount(testing::_)).WillRepeatedly( 
        testing::Invoke(&helper, &AccountHelper::updateAccount)); 

    AccountService as; 
    // inject the MockAccountManager object into AccountService 
    as.setAccountManager(pManager); 

    // operate AccountService 
    as.transfer("A", "B", 1005); 

    // check the balance of Account("A") and Account("B") to 
    //verify that AccountService has done the right job 
    EXPECT_EQ(1995, helper.findAccountForUser("A").getBalance()); 
    EXPECT_EQ(3005, helper.findAccountForUser("B").getBalance()); 

    delete pManager; 
 } 

 // Main.cpp 
 #include <gtest/gtest.h> 
 #include <gmock/gmock.h> 

 int main(int argc, char** argv) { 
    testing::InitGoogleMock(&argc, argv); 

    // Runs all tests using Google Test. 
    return RUN_ALL_TESTS(); 
 }