def test_get_s_pos_returns_all_points_for_lattice_with_two_elements_and_refpts_None(
):
e = elements.Element('e', 0.1)
f = elements.Element('e', 2.1)
print(lattice.get_s_pos([e, f], None))
numpy.testing.assert_equal(lattice.get_s_pos([e, f], None),
numpy.array([0, 0.1, 2.2]))
def test_get_s_pos_returns_all_points_for_lattice_with_two_elements_using_int_refpts(
):
e = elements.Element('e', 0.1)
f = elements.Element('e', 2.1)
lat = [e, f]
numpy.testing.assert_equal(lattice.get_s_pos(lat, range(len(lat) + 1)),
numpy.array([0, 0.1, 2.2]))
def test_element_creation_raises_exception():
with pytest.raises(ValueError):
elements.Element('family_name', R1='not_an_array')
def test_base_element_methods():
e = elements.Element('family_name')
assert e.divide([0.2, 0.5, 0.3]) == [e]
assert id(e.copy()) != id(e)
def test_get_s_pos_returns_length_for_lattice_with_one_element():
e = elements.Element('e', 0.1)
assert lattice.get_s_pos([e], [1]) == numpy.array([0.1])