test_meta_query.py 文件源码

def test_meta_from_position(igmsp):
    # One match
    meta = igmsp.meta_from_position((0.0019,17.7737), 1*u.arcsec)
    assert len(meta) == 1
    # Blank
    meta2 = igmsp.meta_from_position((10.038604,55.298477), 1*u.arcsec)
    assert meta2 is None
    # Multiple sources (insure rank order)
    meta3 = igmsp.meta_from_position((0.0055,-1.5), 1*u.deg)
    assert len(meta3) == 2
    assert np.isclose(meta3['R'][0],meta3['R'][1])
    # Multiple meta entries (GGG)
    meta4 = igmsp.meta_from_position('001115.23+144601.8', 1*u.arcsec)
    assert len(meta4) == 2
    assert meta4['R'][0] != meta4['R'][1]
    # Multiple but grab closest source
    meta5 = igmsp.meta_from_position((0.0055,-1.5), 1*u.deg, max_match=1)
    assert len(meta5) == 1
    # Groups
    meta = igmsp.meta_from_position((2.813500,14.767200), 20*u.deg, groups=['GGG','HD-LLS_DR1'])
    for group in meta['GROUP'].data:
        assert group in ['GGG', 'HD-LLS_DR1']
    # Physical separation
    meta6 = igmsp.meta_from_position('001115.23+144601.8', 300*u.kpc)
    assert len(meta6) == 2