sprockets.mixins.correlation/tests.py
2015-09-23 08:45:39 -04:00

84 lines
2.5 KiB
Python

import logging
import uuid
from tornado import gen, testing, web
from sprockets.mixins import correlation
class AsyncPreparer(web.RequestHandler):
@gen.coroutine
def prepare(self):
super(AsyncPreparer, self).prepare()
class CorrelatedRequestHandler(correlation.HandlerMixin, AsyncPreparer):
def get(self, status_code):
status_code = int(status_code)
if status_code >= 300:
raise web.HTTPError(status_code)
self.write('status {0}'.format(status_code))
class LoggingRequestHandler(correlation.LoggingMixin, web.RequestHandler):
def get(self):
self.logger.info('request made')
self.set_status(204)
class RecordingHandler(logging.Handler):
def __init__(self):
logging.Handler.__init__(self)
self.emitted = []
def emit(self, record):
self.emitted.append((record, self.format(record)))
class CorrelationMixinTests(testing.AsyncHTTPTestCase):
def get_app(self):
return web.Application([
(r'/status/(?P<status_code>\d+)', CorrelatedRequestHandler),
])
def test_that_correlation_id_is_returned_when_successful(self):
self.http_client.fetch(self.get_url('/status/200'), self.stop)
response = self.wait()
self.assertIsNotNone(response.headers.get('Correlation-ID'))
def test_that_correlation_id_is_returned_in_error(self):
self.http_client.fetch(self.get_url('/status/500'), self.stop)
response = self.wait()
self.assertIsNotNone(response.headers.get('Correlation-ID'))
def test_that_correlation_id_is_copied_from_request(self):
correlation_id = uuid.uuid4().hex
self.http_client.fetch(self.get_url('/status/200'), self.stop,
headers={'Correlation-Id': correlation_id})
response = self.wait()
self.assertEqual(response.headers['correlation-id'], correlation_id)
class LoggingMixinTests(testing.AsyncHTTPTestCase):
def get_app(self):
return web.Application([(r'/log', LoggingRequestHandler)])
def setUp(self):
super(LoggingMixinTests, self).setUp()
self.recorder = RecordingHandler()
logging.getLogger().addHandler(self.recorder)
def tearDown(self):
super(LoggingMixinTests, self).tearDown()
logging.getLogger().removeHandler(self.recorder)
def test_that_correlation_id_is_logged(self):
self.fetch('/log')
record, msg = self.recorder.emitted[0]
self.assertTrue(msg.startswith('request made {CID'))