Question

I am trying to create a test fixture class from a normal class with constructor declaration (with arguments) as shown below:

hello.h

class hello
{
public:
hello(const uint32_t argID, const uint8_t argCommand);
virtual ~hello();
void initialize();
};

where uint32_t is: typedef unsigned int and uint8_t is: typedef unsigned char

My Test Fixture Class:

helloTestFixture.h

class helloTestFixture:public testing::Test
{
public:
helloTestFixture(/*How to carry out the constructor declaration in this test fixture class corresponding to the above class?*/);
virtual ~helloTestFixture();
hello m_object;
    };
TEST_F(helloTestFixture, InitializeCheck) // Test to access the 'intialize' function
{
m_object.initialize();
}

After trying to implement the above code, it gives me the error:

 Error C2512: no appropriate default constructor available

I was trying to replicate the constructor constructed in the hello.h file into my hellotestfixture.h file. Any way around for doing that?
I have tried implementing it in many ways but no success as of yet. Any suggestions on how to implement this?

Answer 1

After not much of code correction, here’s what I’ve got for you in store: An Answer 🙂

class hello
{
public:
  hello(const uint32_t argID, const uint8_t argCommand);
virtual ~hello();
void initialize();
};

hello::hello(const uint32_t argID, const uint8_t argCommand){/* do nothing*/}
hello::~hello(){/* do nothing*/}
void hello::initialize(){/* do nothing*/}

class helloTestFixture
{
public:
  helloTestFixture();
  virtual ~helloTestFixture();
  hello m_object;
};

helloTestFixture::helloTestFixture():m_object(0,0){/* do nothing */}
helloTestFixture::~helloTestFixture(){/* do nothing */}

int main()
{
    helloTestFixture htf;
    htf.m_object.initialize();
}

This compiles and runs nicely and hope this answers your question. 🙂