def test_carbon_protocol_read(self):
metric_name = 'fake.name'
metric = bg_test_utils.make_metric(_METRIC_NAME)
# Custom aggregator to make sure all goes right.
metric.metadata.aggregator = bg_accessor.Aggregator.minimum
self.accessor.create_metric(metric)
self.accessor.flush()
self.reader = bg_graphite.Reader(
self.accessor, self.metadata_cache, self.carbonlink, metric_name
)
with mock.patch('graphite.carbonlink.CarbonLinkPool.query') as carbonlink_query_mock:
carbonlink_query_mock.return_value = [
(864005.0, 100.0), (864065.0, 101.0), (864125.0, 102.0)
]
(start, end, step), points = self.fetch(
start_time=self._POINTS_START + 3,
end_time=self._POINTS_END - 3,
now=self._POINTS_END + 10,
)
# Check that we really have a 1sec resolution
self.assertEqual(start, self._POINTS_START + 3)
self.assertEqual(end, self._POINTS_END - 3)
self.assertEqual(step, 1)
# Check that this returns at least one value different from None.
self.assertEqual(len(points), end - start)
# Check that at least one point is at the correct place.
self.assertEqual(points[864005 - start], 100.0)
def setUp(self):
super(TestReader, self).setUp()
self.accessor.connect()
self.accessor.create_metric(self._METRIC)
self.accessor.insert_points(self._METRIC, self._POINTS)
self.accessor.flush()
self.finder = bg_graphite.Finder(
accessor=self.accessor,
metadata_cache=self.metadata_cache,
)
self.carbonlink = self.finder.carbonlink()
self.reader = bg_graphite.Reader(self.accessor, self.metadata_cache,
self.carbonlink, _METRIC_NAME)
def setUp(self):
super(TestReader, self).setUp()
self.accessor.connect()
self.accessor.create_metric(self._METRIC)
self.accessor.insert_points(self._METRIC, self._POINTS)
self.accessor.flush()
self.finder = bg_graphite.Finder(accessor=self.accessor,
metadata_cache=self.metadata_cache)
# Make sure that carbonlink is enabled.
from django.conf import settings as django_settings
django_settings.CARBONLINK_HOSTS = ["localhost:12345"]
self.carbonlink = self.finder.carbonlink()
self.reader = bg_graphite.Reader(self.accessor, self.metadata_cache,
self.carbonlink, _METRIC_NAME)
