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OpenStack Study: test_driver_hints.py

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# Copyright 2013 OpenStack Foundation

#

# 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 keystone.tests import core as test

from keystone.common import driver_hints

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class ListHintsTests(test.TestCase):

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    def test_create_iterate_satisfy(self):

        hints = driver_hints.Hints()

        hints.add_filter('t1', 'data1')

        hints.add_filter('t2', 'data2')

        self.assertEqual(len(hints.filters()), 2)

        filter = hints.get_exact_filter_by_name('t1')

        self.assertEqual(filter['name'], 't1')

        self.assertEqual(filter['value'], 'data1')

        self.assertEqual(filter['comparator'], 'equals')

        self.assertEqual(filter['case_sensitive'], False)

        hints.remove(filter)

        filter_count = 0

        for filter in hints.filters():

            filter_count += 1

            self.assertEqual(filter['name'], 't2')

        self.assertEqual(filter_count, 1)

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    def test_multiple_creates(self):

        hints = driver_hints.Hints()

        hints.add_filter('t1', 'data1')

        hints.add_filter('t2', 'data2')

        self.assertEqual(len(hints.filters()), 2)

        hints2 = driver_hints.Hints()

        hints2.add_filter('t4', 'data1')

        hints2.add_filter('t5', 'data2')

        self.assertEqual(len(hints.filters()), 2)

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    def test_limits(self):

        hints = driver_hints.Hints()

        self.assertIsNone(hints.get_limit())

        hints.set_limit(10)

        self.assertEqual(hints.get_limit()['limit'], 10)

        self.assertFalse(hints.get_limit()['truncated'])

        hints.set_limit(11)

        self.assertEqual(hints.get_limit()['limit'], 11)

        self.assertFalse(hints.get_limit()['truncated'])

        hints.set_limit(10, truncated=True)

        self.assertEqual(hints.get_limit()['limit'], 10)

        self.assertTrue(hints.get_limit()['truncated'])