python-dependency-injector/tests/unit/providers/injections/test_positional_py2_py3.py

"""Positional injection tests."""

from dependency_injector import providers


def test_isinstance():
    injection = providers.PositionalInjection(1)
    assert isinstance(injection, providers.Injection)


def test_get_value_with_not_provider():
    injection = providers.PositionalInjection(123)
    assert injection.get_value() == 123


def test_get_value_with_factory():
    injection = providers.PositionalInjection(providers.Factory(object))

    obj1 = injection.get_value()
    obj2 = injection.get_value()

    assert type(obj1) is object
    assert type(obj2) is object
    assert obj1 is not obj2


def test_get_original_value():
    provider = providers.Factory(object)
    injection = providers.PositionalInjection(provider)
    assert injection.get_original_value() is provider


def test_deepcopy():
    provider = providers.Factory(object)
    injection = providers.PositionalInjection(provider)

    injection_copy = providers.deepcopy(injection)

    assert injection_copy is not injection
    assert injection_copy.get_original_value() is not injection.get_original_value()


def test_deepcopy_memo():
    provider = providers.Factory(object)
    injection = providers.PositionalInjection(provider)
    injection_copy_orig = providers.PositionalInjection(provider)

    injection_copy = providers.deepcopy(injection, {id(injection): injection_copy_orig})

    assert injection_copy is injection_copy_orig
    assert injection_copy.get_original_value() is injection.get_original_value()