old_contents: # -*- coding: utf-8 -*-
  
  from astropy.wcs import WCS
  
  from ..frames import *
  from ..wcs_utils import solar_wcs_frame_mapping
  
  
  def test_hpr():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HRLN', 'HRLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HelioprojectiveRadial)
  
  
  def test_hpc():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HPLN', 'HPLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, Helioprojective)
  
  
  def test_hgs():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HGLN', 'HGLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HeliographicStonyhurst)
  
  
  def test_hgc():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['CRLN', 'CRLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HeliographicCarrington)
  
  
  def test_hcc():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['SOLX', 'SOLY']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, Heliocentric)
  
  
  def test_none():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['spam', 'eggs']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert result is None
  
new_contents: # -*- coding: utf-8 -*-
  
  import numpy as np
  
  import sunpy.map
  from astropy.wcs import WCS
  
  from ..frames import *
  from ..wcs_utils import solar_wcs_frame_mapping
  
  
  def test_hpr():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HRLN', 'HRLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HelioprojectiveRadial)
  
  
  def test_hpc():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HPLN', 'HPLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, Helioprojective)
  
  
  def test_hpr():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HRLN', 'HRLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HelioprojectiveRadial)
  
  
  def test_hgs():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['HGLN', 'HGLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HeliographicStonyhurst)
  
  
  def test_hgc():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['CRLN', 'CRLT']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, HeliographicCarrington)
  
  
  def test_hcc():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['SOLX', 'SOLY']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, Heliocentric)
  
  
  def test_none():
      wcs = WCS(naxis=2)
      wcs.wcs.ctype = ['spam', 'eggs']
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert result is None
  
  
  def test_wcs_extras():
      """
      To enable proper creation of the coordinate systems, Map sticks three extra attributes on the WCS object:
      * heliographic_longitude
      * heliographic_latitude
      * dsun
      """
      data = np.ones([6,6], dtype=np.float64)
      header = {'CRVAL1': 0,
                'CRVAL2': 0,
                'CRPIX1': 5,
                'CRPIX2': 5,
                'CDELT1': 10,
                'CDELT2': 10,
                'CUNIT1': 'arcsec',
                'CUNIT2': 'arcsec',
                'PC1_1': 0,
                'PC1_2': -1,
                'PC2_1': 1,
                'PC2_2': 0,
                'NAXIS1': 6,
                'NAXIS2': 6,
                'CTYPE1': 'HPLN-TAN',
                'CTYPE2': 'HPLT-TAN',
                'date-obs': '1970/01/01T00:00:00',
                'obsrvtry': 'Foo',
                'detector': 'bar',
                'wavelnth': 10,
                'waveunit': 'm',
                'hglt_obs': 0,
                'hgln_obs': 0,
                'dsun_obs': 10}
      generic_map = sunpy.map.Map((data, header))
  
      wcs = generic_map.wcs
  
      assert wcs.heliographic_latitude.value == 0
      assert wcs.heliographic_longitude.value == 0
      assert wcs.dsun.value == 10
  
      result = solar_wcs_frame_mapping(wcs)
  
      assert isinstance(result, Helioprojective)
      assert result.D0.value == 10
      assert result.L0.value == 0
      assert result.B0.value == 0
  
  
subject: Add tests for map attribute passthrough