103 lines
3.7 KiB
Python
103 lines
3.7 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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# Copyright (c) 2013 OpenStack Foundation
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#
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# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
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# All Rights Reserved.
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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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"""Tests for ceilometer/utils.py
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"""
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import datetime
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import decimal
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from ceilometer.openstack.common import test
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from ceilometer import utils
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class TestUtils(test.BaseTestCase):
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def test_datetime_to_decimal(self):
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expected = 1356093296.12
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utc_datetime = datetime.datetime.utcfromtimestamp(expected)
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actual = utils.dt_to_decimal(utc_datetime)
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self.assertEqual(float(actual), expected)
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def test_decimal_to_datetime(self):
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expected = 1356093296.12
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dexpected = decimal.Decimal(str(expected)) # Python 2.6 wants str()
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expected_datetime = datetime.datetime.utcfromtimestamp(expected)
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actual_datetime = utils.decimal_to_dt(dexpected)
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self.assertEqual(actual_datetime, expected_datetime)
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def test_recursive_keypairs(self):
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data = {'a': 'A',
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'b': 'B',
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'nested': {'a': 'A',
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'b': 'B',
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},
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}
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pairs = list(utils.recursive_keypairs(data))
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self.assertEqual(pairs, [('a', 'A'),
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('b', 'B'),
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('nested:a', 'A'),
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('nested:b', 'B')])
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def test_recursive_keypairs_with_separator(self):
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data = {'a': 'A',
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'b': 'B',
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'nested': {'a': 'A',
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'b': 'B',
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},
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}
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separator = '.'
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pairs = list(utils.recursive_keypairs(data, separator))
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self.assertEqual(pairs, [('a', 'A'),
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('b', 'B'),
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('nested.a', 'A'),
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('nested.b', 'B')])
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def test_recursive_keypairs_with_list_of_dict(self):
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small = 1
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big = 1 << 64
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expected = [('a', 'A'),
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('b', 'B'),
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('nested:list', ['{%d: 99, %dL: 42}' % (small, big)])]
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# the keys 1 and 1<<64 cause a hash collision on 64bit platforms
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for nested in [{small: 99, big: 42}, {big: 42, small: 99}]:
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data = {'a': 'A',
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'b': 'B',
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'nested': {'list': [nested]}}
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pairs = list(utils.recursive_keypairs(data))
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self.assertEqual(pairs, expected)
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def test_decimal_to_dt_with_none_parameter(self):
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self.assertIsNone(utils.decimal_to_dt(None))
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def test_dict_to_kv(self):
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data = {'a': 'A',
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'b': 'B',
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'nested': {'a': 'A',
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'b': 'B',
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},
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'nested2': [{'c': 'A'}, {'c': 'B'}]
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}
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pairs = list(utils.dict_to_keyval(data))
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self.assertEqual(pairs, [('a', 'A'),
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('b', 'B'),
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('nested2[0].c', 'A'),
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('nested2[1].c', 'B'),
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('nested.a', 'A'),
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('nested.b', 'B')])
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