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Testing the googletest protected item

I am confused about inheritance when googletesting. I have class A

one that has attributes protected

. If I want to access those I have to extend this class, but at the same time I also need to extend public ::testing::Test

with only purpose gtest

.

What's the most elegant solution to this problem? I also try to avoid#define protected public

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2 answers


There is a FRIEND_TEST declaration that is used in the header of the class under test. He basically defines the test as a friend of the class. In my use case, we disabled all tests when compiling in RELEASE mode, so it won't damage the real executable.



Have a look at this

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To avoid leaving test traces in the class under test, use multiple inheritance with a fixture:



class ToBeTested
{
protected:
    bool SensitiveInternal(int p1, int p2); // Still needs testing
}

// Google-test:
class ToBeTestedFixture : public ToBeTested, public testing::Test
{
   // Empty - bridge to protected members for unit-testing
}

TEST_F(ToBeTestedFixture, TestSensitive)
{
    ASSERT_TRUE(SensitiveInternal(1, 1));
    ASSERT_FALSE(SensitiveInternal(-1, -1));
}
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