resolve() == [header]
    }

    def "resolves macro function with multiple args that returns concatenation of the args when arg is digit"() {
        given:
        sourceFile << """
            #define HEADER_123 "hello.h"
            #define HEADER(X, Y) X ## Y
            #include HEADER(HEADER_, 123)
        """

        expect:
        resolve() == [header]
    }