我尝试模拟User类及其嵌套结构UserBuilder:
class User
{
public:
virtual int loadData(const std::string& filename);
virtual UserBuilder getUserBuilder(const std::string& functionName) const;
struct UserBuilder
{
UserBuilder(std::string functionName) : m_functionName{functionName} {};
virtual ~UserBuilder();
virtual UserBuilder& fun1();
virtual UserBuilder& fun2(int32_t num);
virtual bool callFunction();
private:
std::string m_functionName{};
};
}
这是用户的模拟类:
class UserMock : public User
{
public:
MOCK_METHOD1(loadData, int(const std::string& filename));
MOCK_CONST_METHOD1(getUserBuilder, UserBuilder(const std::string& functionName));
};
Thsi是UserBuilder的模拟类:
struct UserBuilderMock : public User::UserBuilder
{
public:
UserBuilderMock(std::string functionName) : User::UserBuilder(functionName) {}
MOCK_METHOD0(fun1, UserBuilder&());
MOCK_METHOD1(fun2, UserBuilder&(int32_t num));
MOCK_METHOD0(callFunction, bool());
};
我要测试此功能:
void useCase(std::unique_ptr<User> userP)
{
int status = userP->loadFile("init");
if (status == 0)
{
User::UserBuilder builder = userP->getUserlBuilder("init");
bool result = builder.fun1().fun2(1).callFunction();
return result;
}
else
{
return false;
}
}
我给getUserBuilder(“ init”)一个模拟对象builderMock作为其返回值,如下所示:
auto userMock = std::make_unique<UserMock>();
ON_CALL(*userMock, loadFile("init")).WillByDefault(Return(0));
UserBuilderMock builderMock("init");
EXPECT_CALL(*userMock, getUserBuilder("init")).WillOnce(ReturnPointee(&builderMock));
EXPECT_CALL(builderMock,fun1()).Times(1);
测试日志失败:fun1从未调用过且未激活。 我想使用builderMock对象来调用模拟方法fun1,fun2和callFunction,但它仍使用真实的UserBuilder对象 调用真正的fun1,fun2和callFunction。我应该怎么做才能使它使用Mock对象调用Mock方法?
答案 0 :(得分:0)
您必须重写代码,以使User :: getUserBuilder返回指向UserBuilder的指针(可能是一个聪明的指针)。
使用方法返回UserBuilder对象
EXPECT_CALL(*userMock, getUserBuilder("init")).WillOnce(ReturnPointee(&builderMock));
getUserBuilder将模拟对象转换为其基类的对象(切片),而失去所有模拟对象的添加。