ironic-lib/ironic_lib/tests/test_metrics_collector.py
Julia Kreger 71e06086b0 Provide an interface to store metrics
Internally, if we want to re-use ironic-prometheus-exporter
*and* get useful metrics data out through it for ironic itself,
we need we need someway to collect and return metrics data.

Turns out, we did most of this for statsd ages ago, and we can
just reuse the framework.

Change-Id: I6060da4ab80c2e6d19d78b808216ae262edcc84c
2023-01-06 08:48:35 -08:00

69 lines
2.5 KiB
Python

# Copyright 2016 Rackspace Hosting
# All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from unittest import mock
from ironic_lib import metrics_collector
from ironic_lib.tests import base
def connect(family=None, type=None, proto=None):
"""Dummy function to provide signature for autospec"""
pass
class TestDictCollectionMetricLogger(base.IronicLibTestCase):
def setUp(self):
super(TestDictCollectionMetricLogger, self).setUp()
self.ml = metrics_collector.DictCollectionMetricLogger(
'prefix', '.')
@mock.patch('ironic_lib.metrics_collector.'
'DictCollectionMetricLogger._send',
autospec=True)
def test_gauge(self, mock_send):
self.ml._gauge('metric', 10)
mock_send.assert_called_once_with(self.ml, 'metric', 10, 'g')
@mock.patch('ironic_lib.metrics_collector.'
'DictCollectionMetricLogger._send',
autospec=True)
def test_counter(self, mock_send):
self.ml._counter('metric', 10)
mock_send.assert_called_once_with(self.ml, 'metric', 10, 'c',
sample_rate=None)
@mock.patch('ironic_lib.metrics_collector.'
'DictCollectionMetricLogger._send',
autospec=True)
def test_timer(self, mock_send):
self.ml._timer('metric', 10)
mock_send.assert_called_once_with(self.ml, 'metric', 10, 'ms')
def test_send(self):
expected = {
'part1.part1': {'count': 2, 'type': 'counter'},
'part1.part2': {'type': 'gauge', 'value': 66},
'part1.magic': {'count': 2, 'sum': 22, 'type': 'timer'},
}
self.ml._send('part1.part1', 1, 'c')
self.ml._send('part1.part1', 1, 'c')
self.ml._send('part1.part2', 66, 'g')
self.ml._send('part1.magic', 2, 'ms')
self.ml._send('part1.magic', 20, 'ms')
results = self.ml.get_metrics_data()
self.assertEqual(expected, results)