def test_rv_scalar_epoch_returns_scalar_vectors(coordinates, epochs):
unused_plane = Planes.EARTH_EQUATOR
ephem = Ephem(coordinates, epochs, unused_plane)
expected_r = coordinates.get_xyz(xyz_axis=1)[0]
expected_v = coordinates.differentials["s"].get_d_xyz(xyz_axis=1)[0]
r, v = ephem.rv(epochs[0])
assert_quantity_allclose(r, expected_r)
assert_quantity_allclose(v, expected_v)
def test_rv_no_parameters_returns_input_vectors(coordinates, epochs):
unused_plane = Planes.EARTH_EQUATOR
ephem = Ephem(coordinates, epochs, unused_plane)
expected_r = coordinates.get_xyz(xyz_axis=1)
expected_v = coordinates.differentials["s"].get_d_xyz(xyz_axis=1)
r, v = ephem.rv()
assert_quantity_allclose(r, expected_r)
assert_quantity_allclose(v, expected_v)
