d25a3147c1
Add the API for calculating the duration for a series of events from a given meter for a given resource. Replace the old duration calculation in the storage engine API with get_event_interval(). Change-Id: I54952e760fc5e108fa25d71b601b7ef2a4937e9e Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
136 lines
5.1 KiB
Python
136 lines
5.1 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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#
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# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
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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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"""Test listing raw events.
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"""
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import datetime
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import logging
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from ceilometer.openstack.common import timeutils
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from ceilometer.tests import api as tests_api
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LOG = logging.getLogger(__name__)
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class TestComputeDurationByResource(tests_api.TestBase):
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def setUp(self):
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super(TestComputeDurationByResource, self).setUp()
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# Create events relative to the range and pretend
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# that the intervening events exist.
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self.early1 = datetime.datetime(2012, 8, 27, 7, 0)
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self.early2 = datetime.datetime(2012, 8, 27, 17, 0)
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self.start = datetime.datetime(2012, 8, 28, 0, 0)
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self.middle1 = datetime.datetime(2012, 8, 28, 8, 0)
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self.middle2 = datetime.datetime(2012, 8, 28, 18, 0)
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self.end = datetime.datetime(2012, 8, 28, 23, 59)
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self.late1 = datetime.datetime(2012, 8, 29, 9, 0)
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self.late2 = datetime.datetime(2012, 8, 29, 19, 0)
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def _set_interval(self, start, end):
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def get_interval(event_filter):
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assert event_filter.start
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assert event_filter.end
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return (start, end)
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self.stubs.Set(self.conn, 'get_event_interval', get_interval)
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def _invoke_api(self):
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return self.get(
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'/resources/resource-id/meters/instance:m1.tiny/duration',
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start_timestamp=self.start.isoformat(),
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end_timestamp=self.end.isoformat(),
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search_offset=10, # this value doesn't matter, db call is mocked
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)
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def test_before_range(self):
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self._set_interval(self.early1, self.early2)
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data = self._invoke_api()
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assert data['start_timestamp'] is None
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assert data['end_timestamp'] is None
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assert data['duration'] is None
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def _assert_times_match(self, actual, expected):
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actual = timeutils.parse_isotime(actual).replace(tzinfo=None)
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assert actual == expected
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def test_overlap_range_start(self):
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self._set_interval(self.early1, self.middle1)
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data = self._invoke_api()
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self._assert_times_match(data['start_timestamp'], self.start)
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self._assert_times_match(data['end_timestamp'], self.middle1)
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assert data['duration'] == 8 * 60
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def test_within_range(self):
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self._set_interval(self.middle1, self.middle2)
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data = self._invoke_api()
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self._assert_times_match(data['start_timestamp'], self.middle1)
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self._assert_times_match(data['end_timestamp'], self.middle2)
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assert data['duration'] == 10 * 60
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def test_within_range_zero_duration(self):
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self._set_interval(self.middle1, self.middle1)
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data = self._invoke_api()
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self._assert_times_match(data['start_timestamp'], self.middle1)
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self._assert_times_match(data['end_timestamp'], self.middle1)
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assert data['duration'] == 0
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def test_overlap_range_end(self):
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self._set_interval(self.middle2, self.late1)
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data = self._invoke_api()
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self._assert_times_match(data['start_timestamp'], self.middle2)
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self._assert_times_match(data['end_timestamp'], self.end)
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assert data['duration'] == (6 * 60) - 1
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def test_after_range(self):
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self._set_interval(self.late1, self.late2)
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data = self._invoke_api()
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assert data['start_timestamp'] is None
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assert data['end_timestamp'] is None
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assert data['duration'] is None
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def test_without_end_timestamp(self):
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def get_interval(event_filter):
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return (self.late1, self.late2)
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self.stubs.Set(self.conn, 'get_event_interval', get_interval)
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data = self.get(
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'/resources/resource-id/meters/instance:m1.tiny/duration',
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start_timestamp=self.late1.isoformat(),
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search_offset=10, # this value doesn't matter, db call is mocked
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)
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self._assert_times_match(data['start_timestamp'], self.late1)
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self._assert_times_match(data['end_timestamp'], self.late2)
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def test_without_start_timestamp(self):
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def get_interval(event_filter):
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return (self.early1, self.early2)
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self.stubs.Set(self.conn, 'get_event_interval', get_interval)
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data = self.get(
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'/resources/resource-id/meters/instance:m1.tiny/duration',
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end_timestamp=self.early2.isoformat(),
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search_offset=10, # this value doesn't matter, db call is mocked
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)
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self._assert_times_match(data['start_timestamp'], self.early1)
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self._assert_times_match(data['end_timestamp'], self.early2)
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