new_contents: import unittest
  import os
  import numpy as np
  import phonopy
  
  data_dir = os.path.dirname(os.path.abspath(__file__))
  
  tp_str = """0.000000 100.000000 200.000000 300.000000 400.000000
  500.000000 600.000000 700.000000 800.000000 900.000000
  4.856373 3.916036 -0.276031 -6.809284 -14.961974
  -24.342086 -34.708562 -45.898943 -57.796507 -70.313405
  0.000000 26.328820 55.258118 74.269718 88.156943
  99.054231 108.009551 115.606163 122.200204 128.024541
  0.000000 36.207859 45.673598 47.838871 48.634251
  49.009334 49.214960 49.339592 49.420745 49.476502"""
  
  class TestThermalProperties(unittest.TestCase):
      def setUp(self):
          pass
  
      def tearDown(self):
          pass
  
      def testThermalProperties(self):
          phonon = self._get_phonon()
          phonon.set_mesh([5, 5, 5])
          phonon.set_thermal_properties(t_step=100, t_max=900)
          tp = phonon.thermal_properties
          np.testing.assert_allclose(tp.temperatures, tp.get_temperatures())
          np.testing.assert_allclose(tp.thermal_properties,
                                     tp.get_thermal_properties())
          np.testing.assert_allclose(tp.zero_point_energy,
                                     tp.get_zero_point_energy())
          np.testing.assert_allclose(tp.high_T_entropy,
                                     tp.get_high_T_entropy())
          np.testing.assert_allclose(tp.number_of_integrated_modes,
                                     tp.get_number_of_integrated_modes())
          np.testing.assert_allclose(tp.number_of_modes,
                                     tp.get_number_of_modes())
  
          tp_ref = np.reshape([float(x) for x in tp_str.split()], (-1, 10))
          np.testing.assert_allclose(tp.thermal_properties, tp_ref, atol=1e-5)
  
      def _get_phonon(self):
          phonon = phonopy.load(
              [[2, 0, 0], [0, 2, 0], [0, 0, 2]],
              primitive_matrix=[[0, 0.5, 0.5],
                                [0.5, 0, 0.5],
                                [0.5, 0.5, 0]],
              unitcell_filename=os.path.join(data_dir, "..", "POSCAR_NaCl"),
              force_sets_filename=os.path.join(data_dir, "..",
                                               "FORCE_SETS_NaCl"),
              born_filename=os.path.join(data_dir, "..", "BORN_NaCl"))
          return phonon
  
  
  if __name__ == '__main__':
      suite = unittest.TestLoader().loadTestsFromTestCase(TestThermalProperties)
      unittest.TextTestRunner(verbosity=2).run(suite)
  
subject: Add test for thermal properties