from cpl.core.property import classproperty


class MyClass:
    _value = 42

    @classproperty
    def value(cls):
        return cls._value

    @classproperty
    def name(cls):
        return cls.__name__


class Child(MyClass):
    _value = 99


def test_classproperty_on_class():
    assert MyClass.value == 42


def test_classproperty_on_instance():
    obj = MyClass()
    assert obj.value == 42


def test_classproperty_subclass_inherits_override():
    assert Child.value == 99


def test_classproperty_returns_class_name():
    assert MyClass.name == "MyClass"
    assert Child.name == "Child"