def test_afw_completion_empty_transitions(self):
""" Tests a completion of a afw without transitions"""
self.afw_completion_test_01['transitions'] = {}
result = copy.deepcopy(self.afw_completion_test_01)
for state in result['states']:
for action in result['alphabet']:
result['transitions'][state, action] = 'False'
AFW.afw_completion(self.afw_completion_test_01)
self.assertDictEqual(self.afw_completion_test_01, result)
def test_afw_completion_empty_states(self):
""" Tests a completion of a afw without states"""
AFW.afw_completion(self.afw_completion_test_empty)
result = {
'alphabet': set(),
'states': set(),
'initial_state': None,
'accepting_states': set(),
'transitions': {}
}
self.assertDictEqual(self.afw_completion_test_empty, result)
def test_afw_completion(self):
""" Tests a correct afw completion comparing the language read,
that must be the same"""
original = copy.deepcopy(self.afw_completion_test_01)
AFW.afw_completion(self.afw_completion_test_01)
i = 0
last = 7
while i <= last:
base = list(itertools.repeat('a', i))
base += list(itertools.repeat('b', i))
# build all permutation of 'a' and 'b' till length i
word_set = set(itertools.permutations(base, i))
for word in word_set:
word = list(word)
original_acceptance = AFW.afw_word_acceptance(original, word)
completed_acceptance = AFW.afw_word_acceptance(
self.afw_completion_test_01, word)
self.assertEqual(original_acceptance, completed_acceptance)
i += 1
def test_afw_completion_side_effects(self):
""" Tests the function makes side effect on the input """
before = copy.deepcopy(self.afw_completion_test_01)
AFW.afw_completion(self.afw_completion_test_01)
self.assertNotEqual(before, self.afw_completion_test_01)
def test_afw_completion_wrong_dict(self):
""" Tests a dict() in input different from a well formatted dict()
representing a AFW. [EXPECTED FAILURE]"""
AFW.afw_completion({'goofy': 'donald'})
def test_afw_completion_wrong_input(self):
""" Tests an input different from a dict() object. [EXPECTED
FAILURE]"""
AFW.afw_completion(0)