def test_get_fail(self):
"""Test bad inputs to :meth:`astropy.cosmology.default_cosmology.get`."""
# a not-valid option, but still a str
with pytest.raises(ValueError, match="Unknown cosmology"):
cosmo = default_cosmology.get("fail!")
# a not-valid type
with pytest.raises(TypeError, match="'key' must be must be"):
cosmo = default_cosmology.get(object())
def test_get_current(self):
"""Test :meth:`astropy.cosmology.default_cosmology.get` current value."""
cosmo = default_cosmology.get()
assert cosmo is default_cosmology.validate(default_cosmology._value)
def test_get_valid(self, name):
"""Test :meth:`astropy.cosmology.default_cosmology.get` from str."""
cosmo = default_cosmology.get(name)
assert cosmo is getattr(realizations, name)
def test_get_none(self):
"""Test :meth:`astropy.cosmology.default_cosmology.get` to `None`."""
cosmo = default_cosmology.get("no_default")
assert cosmo is None
