def test_when_ngram_less_than_one(self):
""" fails """
self.params['ngram'] = -1
with pytest.raises(ValidationError) as err:
validate_post_params(self.params)
self.assertEqual(
err.value.status_code, 400
)
self.assertEqual(str(err.value.detail[0]),
'ngram must be a positive number and greater than 0')
def test_when_unknow_params_are_passed(self):
""" raises and error """
self.params['some_param'] = 'None'
with pytest.raises(ParseError) as err:
validate_post_params(self.params)
self.assertEqual(
err.value.status_code, 400
)
self.assertEqual(str(err.value.detail),
"some_param shouldn't be in the params")
def test_body_is_null_or_empty(self):
""" raises and error """
self.params['body'] = ''
with pytest.raises(ValidationError) as err:
validate_post_params(self.params)
self.assertEqual(
err.value.status_code, 400
)
self.assertEqual(str(err.value.detail[0]),
'text must exist to calculate ngrams')
def create_stats(self, request):
""" create stats """
post_params = request.data
validate_post_params(post_params)
ngram = post_params.get('ngram', 1)
body = post_params.get('body')
case_sensitive = post_params.get('case_sensitive', True)
length = post_params.get('length', 100)
stats = calculate_ngrams(ngram=int(ngram),
body=body,
case_sensitive=case_sensitive,
length=int(length))
return Response(stats, status=status.HTTP_201_CREATED)
def test_everything_pass(self):
""" when valid params are passed returns nil """
val = validate_post_params(self.params)
self.assertEqual(val, None)