tests.test_temporary_singletons

Complexity

Total Complexity

7

Size/Duplication

Total Lines	34
Duplicated Lines	0 %

Importance

Changes

0

3 Functions

Rating	Name	Duplication	Size	Complexity
A	test_temporary_singletons_work()	0	6	2
A	test_temporary_singletons_context_is_reusable_but_doesnt_share_state()	0	12	3
A	test_temporary_singletons_dont_effect_the_base_container()	0	4	2

from lagom import Container


class SomeDep:
    pass


def test_temporary_singletons_work(container: Container):
    with container.temporary_singletons([SomeDep]) as container_with_singletons:
        # The original container is unaltered and the dep isn't a singleton
        assert container[SomeDep] is not container[SomeDep]
        # The temporary container has the singletons defined
        assert container_with_singletons[SomeDep] is container_with_singletons[SomeDep]


def test_temporary_singletons_dont_effect_the_base_container(container: Container):
    with container.temporary_singletons([SomeDep]) as container_with_singletons:
        the_singleton = container_with_singletons[SomeDep]
    assert container[SomeDep] is not the_singleton


def test_temporary_singletons_context_is_reusable_but_doesnt_share_state(
    container: Container,
):
    context = container.temporary_singletons([SomeDep])

    with context as c1:
        first = c1[SomeDep]

    with context as c2:
        second = c2[SomeDep]

    assert first is not second