Add test for data migration version
Detect when the CURRENT_VERSION constant used by the database migration code is out of sync with the version number of the current release. Change-Id: I9e8b5ee98c6c111aaf065cb310906d6442f5f79a
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# Copyright 2019 Red Hat, Inc.
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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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import six
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import testtools
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from glance.db.migration import CURRENT_RELEASE
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from glance.version import version_info
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class TestDataMigrationVersion(testtools.TestCase):
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def test_migration_version(self):
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"""Make sure the data migration version info has been updated."""
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release_number = int(version_info.version_string().split('.', 1)[0])
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# by rule, release names must be composed of the 26 letters of the
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# ISO Latin alphabet (ord('A')==65, ord('Z')==90)
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release_letter = six.text_type(CURRENT_RELEASE[:1].upper()).encode(
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'ascii')
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# Convert release letter into an int in [1:26]. The first
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# glance release was 'Bexar'.
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converted_release_letter = (ord(release_letter) -
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ord(u'B'.encode('ascii')) + 1)
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# Project the release number into [1:26]
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converted_release_number = release_number % 26
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# Prepare for the worst with a super-informative message
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msg = ('\n\n'
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'EMERGENCY!\n'
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'glance.db.migration.CURRENT_RELEASE is out of sync '
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'with the glance version.\n'
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' CURRENT_RELEASE: %s\n'
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' glance version: %s\n'
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'glance.db.migration.CURRENT_RELEASE needs to be '
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'updated IMMEDIATELY.\n'
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'The gate will be wedged until the update is made.\n'
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'EMERGENCY!\n'
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'\n') % (CURRENT_RELEASE,
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version_info.version_string())
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self.assertEqual(converted_release_letter,
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converted_release_number,
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msg)
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