new_contents: import unittest
  import numpy as np
  from spglib import get_symmetry
  
  
  class TestGetOperationsWithSiteTensors(unittest.TestCase):
  
      def setUp(self):
          lattice = [[0, 2, 2], [2, 0, 2], [2, 2, 0]]
          positions = [[0, 0, 0]]
          numbers = [1]
          magmoms = [[0, 0, 1]]
          self._cell_Ni = (lattice, positions, numbers, magmoms)
  
      def tearDown(self):
          pass
  
      def test_get_symmetry_non_collinear(self):
          sym = get_symmetry(self._cell_Ni)
          self.assertEqual(8, len(sym['rotations']))
          np.testing.assert_equal(sym['equivalent_atoms'], [0])
  
      def test_get_symmetry_vectors(self):
          pass
  
  
  if __name__ == '__main__':
      suite = unittest.TestLoader().loadTestsFromTestCase(
          TestGetOperationsWithSiteTensors)
      unittest.TextTestRunner(verbosity=2).run(suite)
      # unittest.main()
  
subject: Add new test for symmetry with site tensors