code: def test_3(self):
      assert_equal(
          appendpath("/prefix/sub", "/prefix/sup/name"),
          ajoin("prefix", "sub", "sup", "name"),
      )
      assert_equal(
          appendpath("/prefix/sub/sub2", "/prefix/sup/sup2/name"),
          ajoin("prefix", "sub", "sub2", "sup", "sup2", "name"),
      )
      assert_equal(
          appendpath("/prefix/sub/sub2", "/prefix/sub/sup/name"),
          ajoin("prefix", "sub", "sub2", "sup", "name"),
      )
  
file_path: catboost/contrib/python/numpy/py3/numpy/distutils/tests/test_misc_util.py
imports: from os.path import join, sep, dirname
  from numpy.distutils.misc_util import appendpath, minrelpath, gpaths, get_shared_lib_extension, get_info
  from numpy.testing import assert_, assert_equal
label_desc: Use image node_id 3 for calling the TestAppendpath obj's underlying member method code with example usage: obj.test_3() without return types