old_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  """
  This module provides base classes for aperture tests.
  """
  
  from astropy.coordinates import SkyCoord
  from astropy.tests.helper import assert_quantity_allclose
  from numpy.testing import assert_array_equal
  
  
  class BaseTestApertureParams:
      index = 2
      slc = slice(0, 2)
      expected_slc_len = 2
  
  
  class BaseTestAperture(BaseTestApertureParams):
      def test_index(self):
          aper = self.aperture[self.index]
          assert isinstance(aper, self.aperture.__class__)
          assert aper.isscalar
          expected_positions = self.aperture.positions[self.index]
          if isinstance(expected_positions, SkyCoord):
              assert_quantity_allclose(aper.positions.ra, expected_positions.ra)
              assert_quantity_allclose(aper.positions.dec,
                                       expected_positions.dec)
          else:
              assert_array_equal(aper.positions, expected_positions)
              for param in aper._params:
                  assert getattr(aper, param) == getattr(self.aperture, param)
  
      def test_slice(self):
          aper = self.aperture[self.slc]
          assert isinstance(aper, self.aperture.__class__)
          assert len(aper) == self.expected_slc_len
  
          expected_positions = self.aperture.positions[self.slc]
          if isinstance(self.aperture.positions, SkyCoord):
              assert_quantity_allclose(aper.positions.ra, expected_positions.ra)
              assert_quantity_allclose(aper.positions.dec,
                                       expected_positions.dec)
          else:
              assert_array_equal(aper.positions, expected_positions)
              for param in aper._params:
                  assert getattr(aper, param) == getattr(self.aperture, param)
  
new_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  """
  This module provides base classes for aperture tests.
  """
  
  from astropy.coordinates import SkyCoord
  from astropy.tests.helper import assert_quantity_allclose
  from numpy.testing import assert_array_equal
  
  
  class BaseTestApertureParams:
      index = 2
      slc = slice(0, 2)
      expected_slc_len = 2
  
  
  class BaseTestAperture(BaseTestApertureParams):
      def test_index(self):
          aper = self.aperture[self.index]
          assert isinstance(aper, self.aperture.__class__)
          assert aper.isscalar
          expected_positions = self.aperture.positions[self.index]
          if isinstance(expected_positions, SkyCoord):
              assert_quantity_allclose(aper.positions.ra, expected_positions.ra)
              assert_quantity_allclose(aper.positions.dec,
                                       expected_positions.dec)
          else:
              assert_array_equal(aper.positions, expected_positions)
              for shape_param in aper._shape_params:
                  assert (getattr(aper, shape_param) ==
                          getattr(self.aperture, shape_param))
  
      def test_slice(self):
          aper = self.aperture[self.slc]
          assert isinstance(aper, self.aperture.__class__)
          assert len(aper) == self.expected_slc_len
  
          expected_positions = self.aperture.positions[self.slc]
          if isinstance(self.aperture.positions, SkyCoord):
              assert_quantity_allclose(aper.positions.ra, expected_positions.ra)
              assert_quantity_allclose(aper.positions.dec,
                                       expected_positions.dec)
          else:
              assert_array_equal(aper.positions, expected_positions)
              for shape_param in aper._shape_params:
                  assert (getattr(aper, shape_param) ==
                          getattr(self.aperture, shape_param))
  
subject: Update aperture tests