119 lines
3.8 KiB
Python
119 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 Objectif Libre
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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#
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from unittest import mock
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from cloudkitty.common.prometheus_client import PrometheusClient
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from cloudkitty.common.prometheus_client import PrometheusResponseError
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from cloudkitty.fetcher import prometheus
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from cloudkitty import tests
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class PrometheusFetcherTest(tests.TestCase):
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def setUp(self):
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super(PrometheusFetcherTest, self).setUp()
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self.conf.set_override(
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'metric', 'http_requests_total', 'fetcher_prometheus',
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)
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self.conf.set_override(
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'scope_attribute', 'namespace', 'fetcher_prometheus',
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)
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self.fetcher = prometheus.PrometheusFetcher()
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def test_get_tenants_build_query(self):
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query = (
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'max(http_requests_total) by (namespace)'
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)
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with mock.patch.object(
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PrometheusClient, 'get_instant',
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) as mock_get:
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self.fetcher.get_tenants()
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mock_get.assert_called_once_with(query)
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def test_get_tenants_build_query_with_filter(self):
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query = (
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'max(http_requests_total{label1="foo"})'
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' by (namespace)'
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)
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self.conf.set_override(
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'filters', 'label1:foo', 'fetcher_prometheus',
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)
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with mock.patch.object(
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PrometheusClient, 'get_instant',
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) as mock_get:
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self.fetcher.get_tenants()
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mock_get.assert_called_once_with(query)
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def test_get_tenants(self):
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response = mock.patch(
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'cloudkitty.common.prometheus_client.PrometheusClient.get_instant',
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return_value={
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'data': {
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'result': [
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{
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'metric': {},
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'value': [42, 1337],
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},
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{
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'metric': {'namespace': 'scope_id1'},
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'value': [42, 1337],
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},
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{
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'metric': {'namespace': 'scope_id2'},
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'value': [42, 1337],
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},
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{
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'metric': {'namespace': 'scope_id3'},
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'value': [42, 1337],
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},
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]
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}
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},
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)
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with response:
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scopes = self.fetcher.get_tenants()
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self.assertItemsEqual(scopes, [
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'scope_id1', 'scope_id2', 'scope_id3',
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])
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def test_get_tenants_raises_exception(self):
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no_response = mock.patch(
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'cloudkitty.common.prometheus_client.PrometheusClient.get_instant',
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return_value={},
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)
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with no_response:
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self.assertRaises(
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prometheus.PrometheusFetcherError,
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self.fetcher.get_tenants,
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)
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def test_get_tenants_raises_exception2(self):
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invalid_response = mock.patch(
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'cloudkitty.common.prometheus_client.PrometheusClient.get_instant',
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side_effect=PrometheusResponseError,
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)
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with invalid_response:
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self.assertRaises(
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prometheus.PrometheusFetcherError,
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self.fetcher.get_tenants,
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)
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