from core.basic.character.effect_apply import execute_effect, uppercase_attrs


class Source:
    STR = 10

    def __init__(self):
        self.INT = 20
        self.name = 'ignored'


class Effects:
    def execture(self, key):
        if key != 'known':
            return None

        def effect(target):
            target.append(key)

        return effect


def test_uppercase_attrs_returns_only_uppercase_instance_keys():
    assert uppercase_attrs(Source()) == {'INT': 20}


def test_execute_effect_returns_false_for_missing_effect():
    assert execute_effect(Effects(), 'missing', []) is False


def test_execute_effect_calls_existing_effect():
    target = []

    assert execute_effect(Effects(), 'known', target) is True
    assert target == ['known']