def test_ratelimit(self):
"""
Validates whether the rate limiter behaves correctly
"""
from api.oauth2.decorators import limit, auto_response
@auto_response()
@limit(amount=2, per=2, timeout=2)
def the_function(input_value, *args, **kwargs):
"""
Decorated function
"""
_ = args, kwargs
output['value'] = input_value
return input_value
output = {'value': None}
request = self.factory.post('/')
with self.assertRaises(KeyError):
# Should raise a KeyError complaining about the HTTP_X_REAL_IP
the_function(1, request)
request.META['HTTP_X_REAL_IP'] = '127.0.0.1'
response = the_function(2, request)
self.assertEqual(output['value'], 2)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, '2')
response = the_function(3, request)
self.assertEqual(output['value'], 3)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, '3')
with self.assertRaises(HttpTooManyRequestsException) as context:
the_function(4, request)
response = OVSMiddleware().process_exception(request,
context.exception)
self.assertEqual(output['value'], 3)
self.assertEqual(response.status_code, 429)
self.assertEqual(
json.loads(response.content)['error'], 'rate_limit_reached')
with self.assertRaises(HttpTooManyRequestsException) as context:
the_function(5, request)
response = OVSMiddleware().process_exception(request,
context.exception)
self.assertEqual(output['value'], 3)
self.assertEqual(response.status_code, 429)
self.assertEqual(
json.loads(response.content)['error'], 'rate_limit_timeout')
time.sleep(5)
response = the_function(6, request)
self.assertEqual(output['value'], 6)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, '6')
def _assert_failure(self, view, request, status_code, error_code,
exception):
middleware = OVSMiddleware()
with self.assertRaises(exception) as context:
view(request)
response = middleware.process_exception(request, context.exception)
self.assertEqual(response.status_code, status_code)
data = json.loads(response.content)
self.assertIn('error', data)
self.assertEqual(data['error'], error_code)
