60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
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import copy
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import kb
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import random
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import sample
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import unittest
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class KnowledgeBaseTestSuite(unittest.TestCase):
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def setUp(self):
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self.kb = sample.load()
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def test_a_sanity_check(self):
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assert(self.kb.is_consistent())
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for fact in self.kb.__facts__:
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self.assertTrue(self.kb.ask(fact))
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def test_tell(self):
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new_fact = ('is', 'berkeley', 'City')
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# make sure it's not something we already know
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self.assertFalse(self.kb.ask(new_fact))
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self.kb.tell(new_fact)
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answer = self.kb.ask(new_fact)
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self.assertListEqual(answer, [new_fact,])
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def test_inconsistency(self):
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badkb = copy.deepcopy(self.kb)
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badfact = random.choice(badkb.facts())
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relationship, subject, obj = badfact
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# muck with subjects part
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badkb.__kb__[relationship]['subjects'][subject].remove(obj)
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with self.assertRaises(kb.Inconsistency):
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badkb.is_consistent()
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# muck with objects part
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badkb = copy.deepcopy(self.kb)
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badkb.__kb__[relationship]['objects'][obj].remove(subject)
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with self.assertRaises(kb.Inconsistency):
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badkb.is_consistent()
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# muck with facts part
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badkb = copy.deepcopy(self.kb)
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badkb.__facts__.remove(badfact)
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with self.assertRaises(kb.Inconsistency):
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badkb.is_consistent()
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# inject false data into the subject
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badkb = copy.deepcopy(self.kb)
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badkb.__kb__[relationship]['subjects'][subject].add('false memory')
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with self.assertRaises(kb.Inconsistency):
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badkb.is_consistent()
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# inject false data into the object
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badkb = copy.deepcopy(self.kb)
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badkb.__kb__[relationship]['objects'][obj].add('false memory')
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with self.assertRaises(kb.Inconsistency):
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badkb.is_consistent()
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