def test_set_new_identity_ok() -> None:
s = Session(identity=1, data=None, new=True)
assert s.new
assert s.identity == 1
s.set_new_identity(2)
assert s.new
assert s.identity == 2
def test_set_new_identity_for_not_new_session() -> None:
s = Session(identity=1, data=None, new=False)
with pytest.raises(RuntimeError):
s.set_new_identity(2)
