def test_swap_intent_with2():
swap_rules = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['intent_substitution'])
# make sure intent not swapped after another action than the one specified in the rule
parse_data = {"intent": {"name": "whatever", "confidence": 1.0}}
Rules._swap_intent(parse_data, None, swap_rules.rules[1])
assert parse_data["intent"]["name"] == "whatever"
def test_validator_intent_none():
validator = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['input_validation'])
previous = "utter_garantie_type_bien"
parse_data = {'intent': {'name': None}, 'entities': []}
assert validator._get_error(parse_data,
previous) == 'utter_general_validation_options'
def test_validator_dummy_valid():
validator = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['input_validation'])
previous = "not_in_file"
parse_data = {'intent': {'name': 'affirm'}, 'entities': []}
assert validator._get_error(parse_data, previous) is None
def test_swap_intent_with1():
swap_rules = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['intent_substitution'])
# make sure intent swapped
parse_data = {"intent": {"name": "chitchat.i_am_angry", "confidence": 1.0}}
Rules._swap_intent(parse_data, None, swap_rules.rules[1])
assert parse_data["intent"]["name"] == "request.handover"
def test_swap_intent_after1():
swap_rules = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['intent_substitution'])
# make sure intent swapped
parse_data = {"intent": {"name": "whatever", "confidence": 1.0}}
Rules._swap_intent(parse_data, "utter_something", swap_rules.rules[0])
assert parse_data["intent"]["name"] == "intent_something"
def __init__(self, rules_file):
data = self._load_yaml(rules_file)
self.actions_to_ignore = ['action_listen', 'action_invalid_utterance']
self.allowed_entities = data["allowed_entities"] if data and "allowed_entities" in data else {}
self.intent_substitutions = data["intent_substitutions"] if data and "intent_substitutions" in data else []
self.input_validation = InputValidator(data["input_validation"]) if data and "input_validation" in data else []
self.disambiguation_policy = Disambiguator(data["disambiguation_policy"]) if data and "disambiguation_policy" in data else []
def test_swap_intent_with3():
swap_rules = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['intent_substitution'])
# make sure intent is swapped and entity is added
parse_data = {"intent": {"name": "chitchat.bye", "confidence": 1.0}}
Rules._swap_intent(parse_data, None, swap_rules.rules[2])
assert parse_data["intent"]["name"] == "chitchat"
assert parse_data["entities"][0]["entity"] == "intent"
assert parse_data["entities"][0]["value"] == "chitchat.bye"
def test_swap_intent_with4():
swap_rules = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['intent_substitution'])
# just checking regex is ok
parse_data = {
"intent": {
"name": "chitchat.this_is_frustrating",
"confidence": 1.0
}
}
Rules._swap_intent(parse_data, None, swap_rules.rules[2])
assert parse_data["intent"]["name"] == "chitchat.this_is_frustrating"
def test_swap_intent_after2():
swap_rules = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['intent_substitution'])
# make sure intent is not swapped when in unless list
parse_data = {
"intent": {
"name": "chitchat.this_is_frustrating",
"confidence": 1.0
}
}
Rules._swap_intent(parse_data, "utter_something", swap_rules.rules[0])
assert parse_data["intent"]["name"] == "chitchat.this_is_frustrating"
def test_validator_intent_and_entity_ok():
validator = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['input_validation'])
previous = "utter_garantie_type_bien"
parse_data = {
'intent': {
'name': 'garantie'
},
'entities': [{
'entity': 'product_type'
}]
}
assert validator._get_error(parse_data, previous) is None
def test_validator_regex():
validator = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['input_validation'])
previous = "utter_garantie_confirm_particulier"
parse_data = {
'intent': {
'name': 'cancel'
},
'entities': [{
'entity': 'product_type'
}]
}
# having an entity in parse_data that is not expected is ok
assert validator._get_error(parse_data, previous) is None
previous = "utter_garantie_confirm_particulier"
parse_data = {'intent': {'name': 'cancel'}, 'entities': []}
assert validator._get_error(parse_data, previous) is None
previous = "utter_garantie_confirm_particulier"
parse_data = {'intent': {'name': 'lakjshdflkjashdf'}, 'entities': []}
assert validator._get_error(
parse_data, previous) == 'utter_general_validation_affirm_deny'
def test_validator_intent_no_entity():
validator = InputValidator(
InputValidator._load_yaml(VALIDATOR_RULES_YAML)['input_validation'])
previous = "utter_garantie_type_bien"
parse_data = {'intent': {'name': 'cancel'}, 'entities': []}
assert validator._get_error(parse_data, previous) is None
class Rules(object):
def __init__(self, rules_file):
data = self._load_yaml(rules_file)
self.actions_to_ignore = ['action_listen', 'action_invalid_utterance']
self.allowed_entities = data["allowed_entities"] if data and "allowed_entities" in data else {}
self.intent_substitutions = data["intent_substitutions"] if data and "intent_substitutions" in data else []
self.input_validation = InputValidator(data["input_validation"]) if data and "input_validation" in data else []
self.disambiguation_policy = Disambiguator(data["disambiguation_policy"]) if data and "disambiguation_policy" in data else []
def interrupts(self, dispatcher, parse_data, tracker, run_action):
self.run_swap_intent_rules(parse_data, tracker)
if self.disambiguation_policy.disambiguate(parse_data, tracker, dispatcher, run_action):
return True
self.filter_entities(parse_data)
if self.input_validation:
error_template = self.input_validation.get_error(parse_data, tracker)
if error_template is not None:
self._utter_error_and_roll_back(dispatcher, tracker, error_template, run_action)
return True
@staticmethod
def _utter_error_and_roll_back(dispatcher, tracker, template, run_action):
action = ActionInvalidUtterance(template)
run_action(action, tracker, dispatcher)
def filter_entities(self, parse_data):
if parse_data['intent']['name'] in self.allowed_entities.keys():
filtered = list(filter(lambda ent: ent['entity'] in self.allowed_entities[parse_data['intent']['name']],
parse_data['entities']))
else:
filtered = parse_data['entities']
if len(filtered) < len(parse_data['entities']):
# logging first
logger.warn("entity(ies) were removed from parse stories")
parse_data['entities'] = filtered
def run_swap_intent_rules(self, parse_data, tracker):
# don't do anything if no intent is present
if parse_data["intent"]["name"] is None or parse_data["intent"]["name"] == "":
return
previous_action = self._get_previous_action(tracker)
for rule in self.intent_substitutions:
if Rules._swap_intent(parse_data, previous_action, rule):
break
@staticmethod
def _swap_intent(parse_data, previous_action, rule):
# don't do anything if no intent is present
if parse_data["intent"]["name"] is None or parse_data["intent"]["name"] == "":
return
# for an after rule
if previous_action and 'after' in rule and re.match(rule['after'], previous_action):
return Rules._swap_intent_after(parse_data, rule)
# for a general substitution
elif 'after' not in rule and re.match(rule['intent'], parse_data['intent']['name']):
return Rules.swap_intent_with(parse_data, rule)
@staticmethod
def _swap_intent_after(parse_data, rule):
rule['unless'] = rule['unless'] if 'unless' in rule else []
if parse_data['intent']['name'] not in rule['unless']:
logger.warn(
"intent '{}' was replaced with '{}'".format(parse_data['intent']['name'], rule['intent']))
parse_data['intent']['name'] = rule['intent']
parse_data.pop('intent_ranking', None)
return True
@staticmethod
def swap_intent_with(parse_data, rule):
def format(text, parse_data):
return text.format(intent=parse_data["intent"]["name"])
pd_copy = copy.deepcopy(parse_data)
parse_data['intent']['name'] = rule['with']
parse_data['intent_ranking'] = [{"name": rule['with'], "confidence": 1.0}]
if 'entities' in rule and 'add' in rule["entities"]:
for entity in rule["entities"]["add"]:
if 'entities' not in parse_data:
parse_data['entities'] = []
parse_data['entities'].append(
{"entity": format(entity["name"], pd_copy), "value": format(entity["value"], pd_copy)})
return True
def _get_previous_action(self, tracker):
action_listen_found = False
for i in range(len(tracker.events) - 1, -1, -1):
if i == 0:
return None
if type(tracker.events[i]) is ActionExecuted \
and action_listen_found is False \
and tracker.events[i].action_name not in self.actions_to_ignore:
return tracker.events[i].action_name
return None
@staticmethod
def _load_yaml(rules_file):
with io.open(rules_file, 'r', encoding='utf-8') as stream:
try:
return yaml.load(stream)
except yaml.YAMLError as exc:
raise ValueError(exc)