new_contents: #!/usr/bin/env python
  
  '''
  Created on Mar 12, 2012
  '''
  
  from __future__ import division
  
  __author__="Shyue Ping Ong"
  __copyright__ = "Copyright 2012, The Materials Project"
  __version__ = "0.1"
  __maintainer__ = "Shyue Ping Ong"
  __email__ = "shyue@mit.edu"
  __date__ = "Mar 12, 2012"
  
  import unittest
  import os
  
  from pymatgen.core.structure import PeriodicSite
  from pymatgen.symmetry.spacegroup import Spacegroup
  from pymatgen.io.vaspio import Poscar
  from pymatgen.symmetry.spglib_adaptor import SymmetryFinder
  
  import pymatgen
  
  test_dir = os.path.join(os.path.dirname(os.path.abspath(pymatgen.__file__)), '..', 'test_files')
  
  
  class SpacegroupTest(unittest.TestCase):
  
      def setUp(self):
          p = Poscar.from_file(os.path.join(test_dir, 'POSCAR'))
          self.structure = p.struct
          self.sg1 = SymmetryFinder(self.structure, 0.001).get_spacegroup()
          self.sg2 = Spacegroup.from_spacegroup_number(62)
  
      def test_are_symmetrically_equivalent(self):
          sites1 = [self.structure[i] for i in [0,1]]
          sites2 = [self.structure[i] for i in [2,3]]
          self.assertTrue(self.sg1.are_symmetrically_equivalent(sites1, sites2, 1e-3))
          self.assertTrue(self.sg2.are_symmetrically_equivalent(sites1, sites2, 1e-3))
          
          sites1 = [self.structure[i] for i in [0,1]]
          sites2 = [self.structure[i] for i in [0,2]]
          self.assertFalse(self.sg1.are_symmetrically_equivalent(sites1, sites2, 1e-3))
          self.assertFalse(self.sg2.are_symmetrically_equivalent(sites1, sites2, 1e-3))
          
  
  if __name__ == "__main__":
      #import sys;sys.argv = ['', 'Test.testName']
      unittest.main()
subject: Add a unittest for spacegroup. Still very basic.