class ConceptualExpressionRules(unittest.TestCase):
def setUp(self):
n = basic_learner.FiniteSymbolTable()
n.add("john", "john")
n.add("catches", {"CAUSE", "GO", "TO"})
n.add("the", set())
n.add("ball", "ball")
p = basic_learner.FiniteSymbolTable()
p.add("john", "john")
p.add("catches", {"CAUSE", "GO", "TO"})
p.add("the", set())
p.add("ball", "ball")
self.learner = basic_learner.NPSymbolLearner(necessary=n, possible=p)
self.hypothesis = Hypothesis(["CAUSE", "john", ["GO", "ball", ["TO", "john"]]])
def testEmptyTerms(self):
utm_pair = training.pairs.UtteranceMeaningPair("the", {self.hypothesis})
self.learner._rule5(utm_pair)
self.assertEqual(self.learner.expressions["the"], {BottomExpression()})
def testVariableTerms(self):
utm_pair = training.pairs.UtteranceMeaningPair("john", {self.hypothesis})
self.assertTrue(self.learner.expressions["john"])
self.learner._rule5(utm_pair)
self.assertIn("john", self.learner.expressions["john"])
self.assertNotIn("ball", self.learner.expressions["john"])
utm_pair2 = training.pairs.UtteranceMeaningPair("ball", {self.hypothesis})
self.learner._rule5(utm_pair2)
self.assertIn("ball", self.learner.expressions["ball"])
self.assertNotIn("john", self.learner.expressions["ball"])
def testConstantTerms(self):
subexpressions = self.hypothesis.subexpressions_for_constants({"GO", "TO"})
for expression in subexpressions:
self.assertIn("GO", expression)
self.assertIn("TO", expression)
self.assertNotIn("CAUSE", expression)
def testRule5(self):
self.assertIn("john", self.learner.expressions["catches"] ) # arbitrary membership; universal
utm_pair = training.pairs.UtteranceMeaningPair("catches", {self.hypothesis})
self.learner._rule5(utm_pair)
for expression in self.learner.expressions["catches"]:
self.assertIn("GO", expression)
self.assertIn("TO", expression)
self.assertIn("CAUSE", expression)
def testGeneralConstantTerms(self):
general = self.hypothesis.bound_expression.general_form()
self.assertEqual(general,
training.hypothesis.Hypothesis(["CAUSE", "x", "x"]).bound_expression)
print general
def setUp(self):
n = basic_learner.FiniteSymbolTable()
n.add("john", "john")
n.add("catches", {"CAUSE", "GO", "TO"})
n.add("the", set())
n.add("ball", "ball")
p = basic_learner.FiniteSymbolTable()
p.add("john", "john")
p.add("catches", {"CAUSE", "GO", "TO"})
p.add("the", set())
p.add("ball", "ball")
self.learner = basic_learner.NPSymbolLearner(necessary=n, possible=p)
self.hypothesis = Hypothesis(["CAUSE", "john", ["GO", "ball", ["TO", "john"]]])
