given:
        sourceFile << """
            #define HEADER_NAME "hello.h"
            #define HEADER_(X, Y) X ## Y
            #define HEADER(X, Y) HEADER_(X, Y)
            #define PREFIX HEADER_
            #define SUFFIX NAME
            #include HEADER(PREFIX, SUFFIX) // replaced with HEADER_(HEADER_, NAME) then HEADER_NAME then "hello.h"
        """

        expect:
        resolve() == [header]
    }