def test_create_data_frames():
from astropy.coordinates.builtin_frames import ICRS
# from repr
i1 = ICRS(r.SphericalRepresentation(1*u.deg, 2*u.deg, 3*u.kpc))
i2 = ICRS(r.UnitSphericalRepresentation(lon=1*u.deg, lat=2*u.deg))
# from preferred name
i3 = ICRS(ra=1*u.deg, dec=2*u.deg, distance=3*u.kpc)
i4 = ICRS(ra=1*u.deg, dec=2*u.deg)
assert i1.data.lat == i3.data.lat
assert i1.data.lon == i3.data.lon
assert i1.data.distance == i3.data.distance
assert i2.data.lat == i4.data.lat
assert i2.data.lon == i4.data.lon
# now make sure the preferred names work as properties
assert_allclose(i1.ra, i3.ra)
assert_allclose(i2.ra, i4.ra)
assert_allclose(i1.distance, i3.distance)
with pytest.raises(AttributeError):
i1.ra = [11.]*u.deg
def test_create_data_frames():
from astropy.coordinates.builtin_frames import ICRS
# from repr
i1 = ICRS(r.SphericalRepresentation(1 * u.deg, 2 * u.deg, 3 * u.kpc))
i2 = ICRS(r.UnitSphericalRepresentation(lon=1 * u.deg, lat=2 * u.deg))
# from preferred name
i3 = ICRS(ra=1 * u.deg, dec=2 * u.deg, distance=3 * u.kpc)
i4 = ICRS(ra=1 * u.deg, dec=2 * u.deg)
assert i1.data.lat == i3.data.lat
assert i1.data.lon == i3.data.lon
assert i1.data.distance == i3.data.distance
assert i2.data.lat == i4.data.lat
assert i2.data.lon == i4.data.lon
# now make sure the preferred names work as properties
assert_allclose(i1.ra, i3.ra)
assert_allclose(i2.ra, i4.ra)
assert_allclose(i1.distance, i3.distance)
with pytest.raises(AttributeError):
i1.ra = [11.] * u.deg
def test_dynamic_attrs():
from astropy.coordinates.builtin_frames import ICRS
c = ICRS(1 * u.deg, 2 * u.deg)
assert 'ra' in dir(c)
assert 'dec' in dir(c)
with pytest.raises(AttributeError) as err:
c.blahblah
assert "object has no attribute 'blahblah'" in str(err.value)
with pytest.raises(AttributeError) as err:
c.ra = 1
assert "Cannot set any frame attribute" in str(err.value)
c.blahblah = 1
assert c.blahblah == 1
def test_dynamic_attrs():
from astropy.coordinates.builtin_frames import ICRS
c = ICRS(1*u.deg, 2*u.deg)
assert 'ra' in dir(c)
assert 'dec' in dir(c)
with pytest.raises(AttributeError) as err:
c.blahblah
assert "object has no attribute 'blahblah'" in str(err)
with pytest.raises(AttributeError) as err:
c.ra = 1
assert "Cannot set any frame attribute" in str(err)
c.blahblah = 1
assert c.blahblah == 1
