def test_fetch_from_empty_cache(self):
"""Test if there are not any event returned when the cache is empty"""
cache = Cache(self.tmp_path)
dockerhub = DockerHub('grimoirelab', 'perceval', cache=cache)
cached_items = [item for item in dockerhub.fetch_from_cache()]
self.assertEqual(len(cached_items), 0)
def test_fetch_from_non_set_cache(self):
"""Test if a error is raised when the cache was not set"""
dockerhub = DockerHub('grimoirelab', 'perceval')
with self.assertRaises(CacheError):
_ = [item for item in dockerhub.fetch_from_cache()]
def test_fetch_from_cache(self, mock_utcnow):
"""Test whether the cache works"""
setup_http_server()
# First, we fetch the items from the server,
# storing them in a cache. We do it twice as each call
# to fetch only returns one item.
cache = Cache(self.tmp_path)
dockerhub = DockerHub('grimoirelab', 'perceval', cache=cache)
mock_utcnow.return_value = datetime.datetime(
2017, 1, 1, tzinfo=dateutil.tz.tzutc())
items = [item for item in dockerhub.fetch()]
mock_utcnow.return_value = datetime.datetime(
2017, 1, 2, tzinfo=dateutil.tz.tzutc())
aux = [item for item in dockerhub.fetch()]
items.extend(aux)
self.assertEqual(len(httpretty.httpretty.latest_requests), 2)
# Now, we get the items from the cache.
# The items should be the same and there won't be
# any new request to the server
cached_items = [item for item in dockerhub.fetch_from_cache()]
self.assertEqual(len(cached_items), len(items))
expected = [(1483228800.0, '0fa16dc4edab9130a14914a8d797f634d13b4ff4',
1483228800.0),
(1483315200.0, '0ce2bdf5ddeef42886d9ce4b573c98345e6f1b9a',
1483315200.0)]
self.assertEqual(len(cached_items), len(expected))
for x in range(len(cached_items)):
item = cached_items[x]
expc = expected[x]
self.assertEqual(item['data']['fetched_on'], expc[0])
self.assertEqual(item['uuid'], expc[1])
self.assertEqual(item['origin'],
'https://hub.docker.com/grimoirelab/perceval')
self.assertEqual(item['updated_on'], expc[2])
self.assertEqual(item['category'], 'dockerhub-data')
self.assertEqual(item['tag'],
'https://hub.docker.com/grimoirelab/perceval')
# Compare chached and fetched task
self.assertDictEqual(item['data'], items[x]['data'])
# No more requests were sent
self.assertEqual(len(httpretty.httpretty.latest_requests), 2)