Lab Coat: a "scientific" approach to testing

labcoat.py

from labcoat import specimen

from animals import Dog, Human
from house import Furniture
from animals.behavior.exceptions import BadDog


def test():
    with specimen(Dog) as rover:
        rover.has.tail
        rover.has(4).legs
        rover.can.bark()
        rover.s.fur_color == 'brown'

        with specimen(Furniture) as couch:
            couch.has(4).legs
            couch.lacks.tail
            couch.can_not.bark()
            rover.can.hump(couch)

        with specimen(Human) as owner:
            owner.has(2).legs
            owner.lacks.tail
            rover.can_not.hump(owner).because(BadDog)