How can I test a class with multiple template parameters?

[JamesLee]

I have a class CHouse:

template<typename A, typename B>

class CHouse

{

    ....

};

I want to test the protected methods of CHouse with gtest, so I write a fixture like this:

template<typename A, typename B>

class CHouseFixture : public CHouse<A, B>, public ::testing::Test

{

    ....

};

However, the TEST_F(CHouseFixture, MyTest) doesn't work. It can not be compiled.

How can I test the protected methods of a class with multiple template parameters?

[Greg Miller]

Consider creating a subclass of CHouse that redeclares the protected methods as public.

template <typename A, typename B>

class CHouse {

 protected:

  int DoWork() {

    return 42;

  }

};

template <typename A, typename B>

class CHouseForTesting : public CHouse<A, B> {

 public:

  using CHouse<A, B>::DoWork;

};

TEST(CHouse, Works) {

  CHouseForTesting<int, char> chouse;

  EXPECT_EQ(42, chouse.DoWork());

}

You can optionally also use a test fixture class (which is a subclass of ::testing::Test), but that's not required.

HTH,

Greg

[JamesLee]

Hi Greg,

Thanks for your reply. It works for me.

However, I am new to unit test and I am curious about how to use a fixture class (a subclass of ::testing::Test) to test my CHouse class.

Would you please tell me that?

Thanks in advance.

Greg Miller於 2013年1月3日星期四UTC+8下午10時52分40秒寫道：

[Greg Miller]

On Thu, Jan 3, 2013 at 9:01 PM, JamesLee <cohere...@gmail.com> wrote:

Hi Greg,

Thanks for your reply. It works for me.

However, I am new to unit test and I am curious about how to use a fixture class (a subclass of ::testing::Test) to test my CHouse class.

Would you please tell me that?

Maybe something like this:

template <typename A, typename B>

class CHouse {

 protected:

  int DoWork() {

    return 42;

  }

};

template <typename A, typename B>

class CHouseForTesting : public CHouse<A, B> {

 public:

  using CHouse<A, B>::DoWork;

};

class CHouseFixture : public ::testing::Test {

 protected:

  CHouseForTesting<int char> chouse_;

};

TEST_F(CHouseFixture, Works) {

  EXPECT_EQ(42, chouse_.DoWork());

}

 

HTH,

Greg

[JamesLee]

Thanks a lot. It works.

Greg Miller於 2013年1月4日星期五UTC+8上午10時52分27秒寫道：