public static String makeTestDataFile(final Class<?> clazz, final String fileName) {
        return Storage.toPath(new File(makeTestDataPath(clazz), fileName));
    }
@param clazz
@param fileName
@return UNIX-formatted path to a fileName in the underlying {@link Storage}. The file is relative to the
supplied class in the {@code /target} directory.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/util/TestSupport.java