def test_assertion_for_getter():
"""Test assertion for empty Coordinates objects"""
coords = Coordinates()
with raises(ValueError, match="Object is empty"):
coords.get_cart()
with raises(ValueError, match="Object is empty"):
coords.get_sph()
with raises(ValueError, match="Object is empty"):
coords.get_cyl()
def test_getter_with_degrees():
"""Test if getter return correct values also in degrees"""
coords = Coordinates(0, 1, 0)
sph = coords.get_sph(unit="deg")
npt.assert_allclose(sph, np.atleast_2d([90, 90, 1]))
cyl = coords.get_cyl(unit="deg")
npt.assert_allclose(cyl, np.atleast_2d([90, 0, 1]))