def test_iterating_over_raw_velocity():
velocity = units.Velocity(au_per_d=1.234)
with assert_raises(units.UnpackingError):
x, y, z = velocity
def test_converting_velocity_with_astropy():
velocity = units.Velocity(au_per_d=1.234)
value1 = velocity.km_per_s
value2 = velocity.to(u.km / u.s)
epsilon = 1e-6
assert abs(value1 - value2.value) < epsilon
def test_velocity_input_units():
v1 = units.Velocity(au_per_d=2.0)
v2 = units.Velocity(km_per_s=3462.9137)
assert abs(v1.au_per_d - v2.au_per_d) < 1e-7