def METHOD_NAME(cls):
    """
    Copy test files.
    """
    cls.single = "{}_single.e".format(cls.__name__)
    shutil.copyfile(os.path.abspath('../input/mug_blocks_out.e'), cls.single)
    cls.vector = "{}_vector.e".format(cls.__name__)
    shutil.copyfile(os.path.abspath('../input/vector_out.e'), cls.vector)
    cls.multiple = "{}_multiple".format(cls.__name__)
    cls.testfiles = chigger.utils.copy_adaptive_exodus_test_files(cls.multiple)
    cls.multiple += '.e'