class TestUniversalCoverageOperator(CoverageOperatorTestCommon):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.sut = UniversalCoverageOperator()
self.environment_mock.get_sentence_symbol.return_value = Symbol(hash('a'))
def test_operators_execute_with_some_chance(self):
self.operator_executes_with_some_chance_scenario()
def test_given_unknown_terminal_symbol_should_cover_it(self):
# When:
result = self.sut.cover(self.cyk_service_mock, self.environment_mock,
self.rule_population_mock, self.coordinates)
# Then:
assert_that(result, is_(equal_to(Production(
Detector(self.coordinates),
TerminalRule(Symbol(hash('U')), Symbol(hash('a')))))))
def test_if_universal_symbol_unset_in_rule_population_error_should_be_raised(self):
type(self.rule_population_mock).universal_symbol = PropertyMock(Symbol, return_value=None)
assert_that(calling(self.sut.cover).with_args(
self.cyk_service_mock,
self.environment_mock,
self.rule_population_mock,
self.coordinates), raises(InvalidCykConfigurationError))
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.sut = UniversalCoverageOperator()
self.environment_mock.get_sentence_symbol.return_value = Symbol(hash('a'))
