def test_expressions():
kb = KnowledgeBase([('i', 'like', 'cookies'), ('i', 'like', 'milk'),
('i', 'type', 'person'), ('i', 'type', 'living_thing'),
('cookies', 'quality', 'good')])
assert kb.expressions('i') == {'i'}
assert kb.expressions('living_thing') == set()
kb.add_expression('living_thing', 'life')
kb.add_expression('living_thing', 'alive')
assert kb.expressions('living_thing') == {'life', 'alive'}
def test_expressions():
kb = KnowledgeBase(
[
("i", "like", "cookies"),
("i", "like", "milk"),
("i", "type", "person"),
("i", "type", "living_thing"),
("cookies", "quality", "good"),
]
)
assert kb.expressions("i") == {"i"}
assert kb.expressions("living_thing") == set()
kb.add_expression("living_thing", "life")
kb.add_expression("living_thing", "alive")
assert kb.expressions("living_thing") == {"life", "alive"}