new_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  # -*- coding: utf-8 -*-
  
  import numpy as np
  
  import pytest
  
  from astropy import units as u
  from astropy.coordinates import SkyCoord, ICRS, Galactic, FK4, FK5, Longitude
  
  from asdf.tests.helpers import assert_roundtrip_tree
  
  
  # These tests are cribbed directly from the Examples section of
  # http://docs.astropy.org/en/stable/api/astropy.coordinates.SkyCoord.html
  
  
  def test_scalar_skycoord(tmpdir):
  
      c = SkyCoord(10, 20, unit="deg")  # defaults to ICRS frame
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_vector_skycoord(tmpdir):
  
      c = SkyCoord([1, 2, 3], [-30, 45, 8], frame="icrs", unit="deg")  # 3 coords
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_fk4(tmpdir):
  
      coords = ["1:12:43.2 +1:12:43", "1 12 43.2 +1 12 43"]
      c = SkyCoord(coords, frame=FK4, unit=(u.deg, u.hourangle), obstime="J1992.21")
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  @pytest.mark.parametrize('coord', [
      SkyCoord("1h12m43.2s +1d12m43s", frame=Galactic),  # Units from string
      SkyCoord(frame="galactic", l="1h12m43.2s", b="+1d12m43s")
  ])
  def test_skycoord_galactic(coord, tmpdir):
  
      tree = dict(coord=coord)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_ra_dec(tmpdir):
  
      ra = Longitude([1, 2, 3], unit=u.deg)  # Could also use Angle
      dec = np.array([4.5, 5.2, 6.3]) * u.deg  # Astropy Quantity
      c = SkyCoord(ra, dec, frame='icrs')
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
      c = SkyCoord(frame=ICRS, ra=ra, dec=dec, obstime='2001-01-02T12:34:56')
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_override_defaults(tmpdir):
  
      c = FK4(1 * u.deg, 2 * u.deg)  # Uses defaults for obstime, equinox
      c = SkyCoord(c, obstime='J2010.11', equinox='B1965')  # Override defaults
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_cartesian(tmpdir):
  
      c = SkyCoord(w=0, u=1, v=2, unit='kpc', frame='galactic',
                     representation_type='cartesian')
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_vector_frames(tmpdir):
  
      c = SkyCoord([ICRS(ra=1*u.deg, dec=2*u.deg), ICRS(ra=3*u.deg, dec=4*u.deg)])
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_radial_velocity(tmpdir):
  
      c = SkyCoord(ra=1*u.deg, dec=2*u.deg, radial_velocity=10*u.km/u.s)
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_proper_motion(tmpdir):
  
      c = SkyCoord(ra=1*u.deg, dec=2*u.deg, pm_ra_cosdec=2*u.mas/u.yr,
                   pm_dec=1*u.mas/u.yr)
      tree = dict(coord=c)
      assert_roundtrip_tree(tree, tmpdir)
  
  
  def test_skycoord_extra_attribute(tmpdir):
  
      sc = SkyCoord(10*u.deg, 20*u.deg, equinox="2011-01-01T00:00", frame="fk4")
      tree = dict(coord=sc.transform_to("icrs"))
  
      def check_asdf(asdffile):
          assert hasattr(asdffile['coord'], 'equinox')
  
      assert_roundtrip_tree(tree, tmpdir, asdf_check_func=check_asdf)
  
subject: Create unit test suite for storing SkyCoord with ASDF