void noneRecompiled() {
        recompiledFiles([])
    }

    //asserts file changed/added since last snapshot
    void recompiledFile(File file) {
        recompiledFiles([file])
    }

    //asserts files changed/added since last snapshot
    void recompiledFiles(File... files) {
        recompiledFiles(files as List)
    }

    //asserts files changed/added since last snapshot

        and:
        outputs.recompiledFile sourceFile

        when: "Header that is NOT included is changed"
        notIncluded << """
            // Dummy header file
"""
        and:
        run "mainExecutable"

        then: "Source is still recompiled"
        executedAndNotSkipped compileTask

        and:
        outputs.recompiledFile sourceFile
    }

        otherHeaderFile << """
            // Some extra content
"""
        and:
        run "mainExecutable"

        then:
        executedAndNotSkipped compileTask

        and:
        outputs.recompiledFile sourceFile
    }