#includeIn the above example, we define a test suite for the Unit class that includes a test for the GetPositionX function. We create an instance of the Unit class with coordinates (3,4) and use CPPUNIT_ASSERT_EQUAL to verify that the value returned by GetPositionX is equal to 3. The package library for CppUnit is typically included in the project using a package manager or installed as a system library.class UnitTest : public CppUnit::TestFixture { public: void testGetPositionX() { Unit unit(3, 4); CPPUNIT_ASSERT_EQUAL(3, unit.GetPositionX()); } }; CPPUNIT_TEST_SUITE_REGISTRATION(UnitTest);