def test_different_instances_with_same_content_are_equal(self):
""" If two different instances has the same content are equal. """
value = (
grammar.SingleTerm('terminal1'),
'terminal2'
)
self.assertEquals(
grammar.Or(*value),
grammar.Or(*value),
)
def test_if_values_in_value_are_tuples_not_all_weights_are_numbers(self):
""" If value is a tuple of less than 2 terms, it raises an error. """
with self.assertRaises(ValueError):
grammar.Or((
(grammar.SingleTerm('terminal'), 2),
(grammar.SingleTerm('terminal'), '8'),
))
def test_not_all_values_in_value_tuple_are_not_term_string_or_tuple(self):
""" If value is a tuple of less than 2 terms, it raises an error. """
invalid_values = (
(grammar.SingleTerm('terminal'), 'a nice dog', 9),
(1, 2, 3, 4, 5),
)
for value in invalid_values:
with self.assertRaises(ValueError):
grammar.Or(value)
def test_value_is_a_tuple_of_less_than_two_terms(self):
""" If value is a tuple of less than 2 terms, it raises an error. """
invalid_values = (
tuple(),
grammar.SingleTerm('terminal'),
)
for value in invalid_values:
with self.assertRaises(ValueError):
grammar.Or(value)
def test_correct_construction_without_weights(self):
""" If value correct without weights, term is correctly initialized. """
value = (
grammar.SingleTerm('t1'),
't2',
)
or_connector = grammar.Or(*value)
self.assertEquals(value[0], or_connector.value[0])
self.assertEquals(grammar.SingleTerm(value[1]), or_connector.value[1])
self.assertEquals(tuple(1 for _ in value), or_connector.weights)
def test_correct_construction_with_weights(self):
""" If value correct with weights, term is correctly initialized. """
value_and_weights = (
(grammar.SingleTerm('t1'), 1),
('t2', 3),
)
value = tuple(t[0] for t in value_and_weights)
weights = tuple(t[1] for t in value_and_weights)
or_connector = grammar.Or(*value_and_weights)
self.assertEquals(value[0], or_connector.value[0])
self.assertEquals(grammar.SingleTerm(value[1]), or_connector.value[1])
self.assertEquals(weights, or_connector.weights)
def test_value_is_not_a_tuple(self):
""" If value is not a tuple, it raises an error. """
with self.assertRaises(ValueError):
grammar.Or(grammar.SingleTerm('terminal'))
from pynetics.gggp import grammar
awesome_grammar = grammar.Grammar(
start_symbol='frase',
productions=[
grammar.Production(
'frase',
grammar.And(
grammar.Multiplier('sujeto', upper=1), 'predicado',
grammar.Multiplier(
grammar.And('conjuncion',
grammar.Multiplier('sujeto', upper=1),
'predicado'), )),
),
grammar.Production('conjuncion', grammar.Or(('y', 4), ('o', 6))),
grammar.Production('sujeto', grammar.Or('sujeto_masc', 'sujeto_fem')),
grammar.Production(
'sujeto_masc',
grammar.Or(
grammar.And('el', 'nombre_comun_masc'),
grammar.And(grammar.Multiplier('el', upper=1),
'nombre_propio_masc'),
)),
grammar.Production(
'sujeto_fem',
grammar.Or(
grammar.And('la', 'nombre_comun_fem'),
grammar.And(grammar.Multiplier('la', upper=1),
'nombre_propio_fem'),
)),
