def path_to_matrices(path_to_test_data):
    """Returns paths to ROCS and monomers_map files"""

    path_to_subst_matrix = path_to_test_data + "ROCS"
    path_to_monomer_table = path_to_test_data + "monomers_map.txt"

    return [path_to_subst_matrix, path_to_monomer_table]