def test_wrong_units(self): with pytest.raises(u.UnitTypeError): mass_density(1 * u.J)
def test_particleless(self): with pytest.raises(ValueError): mass_density(1 * u.m**-3)
def test_values(self, args, kwargs, expected): assert np.isclose(mass_density(*args, **kwargs), expected)
def time_mass_density(self): mass_density(1 * u.m**-3)
def test_raises(self, args, kwargs, conditional): with conditional: mass_density(*args, **kwargs)