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