mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
6e585bdf24
Add deps/requires for fact collectors
Fact collectors can now set a required_facts
class attribute that will be a set of the names
of fact collectors they require to be run first.
ie, if a collector needs to know the ansible_distribution,
it should set it's required_facts to include 'distribution'
required_facts = set(['distribution'])
If a collector requires another collector, it gets added
to the selected collector names.
We then topological sort the ordering of the collectors
so that deps work out (ie, 'distribution' will run before
'service_mgr')
required_facts were added to the collectors for:
- network (requires 'distribution', 'platform')
- hardware (requires 'platform')
- service_mgr (requires 'distribution', 'platform')
Fix name references for facts (need 'ansible_' prefix)
is service_mgr
Fixes #30753
563 lines
26 KiB
Python
563 lines
26 KiB
Python
# This file is part of Ansible
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# -*- coding: utf-8 -*-
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#
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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# Make coding more python3-ish
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from __future__ import (absolute_import, division)
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__metaclass__ = type
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from collections import defaultdict
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import pprint
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# for testing
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from ansible.compat.tests import unittest
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from ansible.module_utils.facts import collector
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from ansible.module_utils.facts import default_collectors
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class TestFindCollectorsForPlatform(unittest.TestCase):
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def test(self):
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compat_platforms = [{'system': 'Generic'}]
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res = collector.find_collectors_for_platform(default_collectors.collectors,
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compat_platforms)
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for coll_class in res:
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self.assertIn(coll_class._platform, ('Generic'))
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def test_linux(self):
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compat_platforms = [{'system': 'Linux'}]
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res = collector.find_collectors_for_platform(default_collectors.collectors,
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compat_platforms)
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for coll_class in res:
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self.assertIn(coll_class._platform, ('Linux'))
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def test_linux_or_generic(self):
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compat_platforms = [{'system': 'Generic'}, {'system': 'Linux'}]
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res = collector.find_collectors_for_platform(default_collectors.collectors,
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compat_platforms)
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for coll_class in res:
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self.assertIn(coll_class._platform, ('Generic', 'Linux'))
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class TestSelectCollectorNames(unittest.TestCase):
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def _assert_equal_detail(self, obj1, obj2, msg=None):
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msg = 'objects are not equal\n%s\n\n!=\n\n%s' % (pprint.pformat(obj1), pprint.pformat(obj2))
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return self.assertEqual(obj1, obj2, msg)
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def test(self):
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collector_names = ['distribution', 'all_ipv4_addresses',
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'local', 'pkg_mgr']
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all_fact_subsets = self._all_fact_subsets()
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res = collector.select_collector_classes(collector_names,
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all_fact_subsets)
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expected = [default_collectors.DistributionFactCollector,
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default_collectors.PkgMgrFactCollector]
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self._assert_equal_detail(res, expected)
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def test_default_collectors(self):
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platform_info = {'system': 'Generic'}
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compat_platforms = [platform_info]
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collectors_for_platform = collector.find_collectors_for_platform(default_collectors.collectors,
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compat_platforms)
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all_fact_subsets, aliases_map = collector.build_fact_id_to_collector_map(collectors_for_platform)
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all_valid_subsets = frozenset(all_fact_subsets.keys())
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collector_names = collector.get_collector_names(valid_subsets=all_valid_subsets,
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aliases_map=aliases_map,
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platform_info=platform_info)
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complete_collector_names = collector._solve_deps(collector_names, all_fact_subsets)
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dep_map = collector.build_dep_data(complete_collector_names, all_fact_subsets)
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ordered_deps = collector.tsort(dep_map)
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ordered_collector_names = [x[0] for x in ordered_deps]
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res = collector.select_collector_classes(ordered_collector_names,
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all_fact_subsets)
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self.assertTrue(res.index(default_collectors.ServiceMgrFactCollector) >
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res.index(default_collectors.DistributionFactCollector),
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res)
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self.assertTrue(res.index(default_collectors.ServiceMgrFactCollector) >
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res.index(default_collectors.PlatformFactCollector),
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res)
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def _all_fact_subsets(self, data=None):
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all_fact_subsets = defaultdict(list)
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_data = {'pkg_mgr': [default_collectors.PkgMgrFactCollector],
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'distribution': [default_collectors.DistributionFactCollector],
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'network': [default_collectors.LinuxNetworkCollector]}
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data = data or _data
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for key, value in data.items():
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all_fact_subsets[key] = value
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return all_fact_subsets
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class TestGetCollectorNames(unittest.TestCase):
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def test_none(self):
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res = collector.get_collector_names()
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self.assertIsInstance(res, set)
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self.assertEqual(res, set([]))
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def test_empty_sets(self):
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res = collector.get_collector_names(valid_subsets=frozenset([]),
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minimal_gather_subset=frozenset([]),
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gather_subset=[])
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self.assertIsInstance(res, set)
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self.assertEqual(res, set([]))
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def test_empty_valid_and_min_with_all_gather_subset(self):
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res = collector.get_collector_names(valid_subsets=frozenset([]),
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minimal_gather_subset=frozenset([]),
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gather_subset=['all'])
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self.assertIsInstance(res, set)
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self.assertEqual(res, set([]))
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def test_one_valid_with_all_gather_subset(self):
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valid_subsets = frozenset(['my_fact'])
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=frozenset([]),
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gather_subset=['all'])
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self.assertIsInstance(res, set)
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self.assertEqual(res, set(['my_fact']))
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def _compare_res(self, gather_subset1, gather_subset2,
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valid_subsets=None, min_subset=None):
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valid_subsets = valid_subsets or frozenset()
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minimal_gather_subset = min_subset or frozenset()
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res1 = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=gather_subset1)
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res2 = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=gather_subset2)
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return res1, res2
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def test_not_all_other_order(self):
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valid_subsets = frozenset(['min_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['min_fact'])
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res1, res2 = self._compare_res(['!all', 'whatever'],
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['whatever', '!all'],
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valid_subsets=valid_subsets,
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min_subset=minimal_gather_subset)
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self.assertEqual(res1, res2)
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self.assertEqual(res1, set(['min_fact', 'whatever']))
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def test_not_all_other_order_min(self):
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valid_subsets = frozenset(['min_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['min_fact'])
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res1, res2 = self._compare_res(['!min_fact', 'whatever'],
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['whatever', '!min_fact'],
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valid_subsets=valid_subsets,
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min_subset=minimal_gather_subset)
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self.assertEqual(res1, res2)
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self.assertEqual(res1, set(['whatever']))
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def test_one_minimal_with_all_gather_subset(self):
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my_fact = 'my_fact'
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valid_subsets = frozenset([my_fact])
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minimal_gather_subset = valid_subsets
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['all'])
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self.assertIsInstance(res, set)
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self.assertEqual(res, set(['my_fact']))
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def test_with_all_gather_subset(self):
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valid_subsets = frozenset(['my_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['my_fact'])
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# even with '!all', the minimal_gather_subset should be returned
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['all'])
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self.assertIsInstance(res, set)
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self.assertEqual(res, set(['my_fact', 'something_else', 'whatever']))
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def test_one_minimal_with_not_all_gather_subset(self):
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valid_subsets = frozenset(['my_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['my_fact'])
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# even with '!all', the minimal_gather_subset should be returned
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['!all'])
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self.assertIsInstance(res, set)
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self.assertEqual(res, set(['my_fact']))
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def test_gather_subset_excludes(self):
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valid_subsets = frozenset(['my_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['min_fact', 'min_another'])
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# even with '!all', the minimal_gather_subset should be returned
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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# gather_subset=set(['all', '!my_fact', '!whatever']))
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# gather_subset=['all', '!my_fact', '!whatever'])
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gather_subset=['!min_fact', '!whatever'])
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self.assertIsInstance(res, set)
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# min_another is in minimal_gather_subset, so always returned
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self.assertEqual(res, set(['min_another']))
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def test_gather_subset_excludes_ordering(self):
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valid_subsets = frozenset(['my_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['my_fact'])
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['!all', 'whatever'])
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self.assertIsInstance(res, set)
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# excludes are higher precedence than includes, so !all excludes everything
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# and then minimal_gather_subset is added. so '!all', 'other' == '!all'
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self.assertEqual(res, set(['my_fact', 'whatever']))
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def test_gather_subset_excludes_min(self):
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valid_subsets = frozenset(['min_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['min_fact'])
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['whatever', '!min'])
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self.assertIsInstance(res, set)
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# excludes are higher precedence than includes, so !all excludes everything
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# and then minimal_gather_subset is added. so '!all', 'other' == '!all'
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self.assertEqual(res, set(['whatever']))
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def test_gather_subset_excludes_min_and_all(self):
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valid_subsets = frozenset(['min_fact', 'something_else', 'whatever'])
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minimal_gather_subset = frozenset(['min_fact'])
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res = collector.get_collector_names(valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['whatever', '!all', '!min'])
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self.assertIsInstance(res, set)
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# excludes are higher precedence than includes, so !all excludes everything
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# and then minimal_gather_subset is added. so '!all', 'other' == '!all'
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self.assertEqual(res, set(['whatever']))
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def test_invaid_gather_subset(self):
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valid_subsets = frozenset(['my_fact', 'something_else'])
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minimal_gather_subset = frozenset(['my_fact'])
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self.assertRaisesRegexp(TypeError,
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r'Bad subset .* given to Ansible.*allowed\:.*all,.*my_fact.*',
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collector.get_collector_names,
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valid_subsets=valid_subsets,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=['my_fact', 'not_a_valid_gather_subset'])
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class TestFindUnresolvedRequires(unittest.TestCase):
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def test(self):
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names = ['network', 'virtual', 'env']
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'virtual': [default_collectors.LinuxVirtualCollector]}
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res = collector.find_unresolved_requires(names, all_fact_subsets)
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# pprint.pprint(res)
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self.assertIsInstance(res, set)
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self.assertEqual(res, set(['platform', 'distribution']))
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def test_resolved(self):
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names = ['network', 'virtual', 'env', 'platform', 'distribution']
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'distribution': [default_collectors.DistributionFactCollector],
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'platform': [default_collectors.PlatformFactCollector],
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'virtual': [default_collectors.LinuxVirtualCollector]}
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res = collector.find_unresolved_requires(names, all_fact_subsets)
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# pprint.pprint(res)
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self.assertIsInstance(res, set)
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self.assertEqual(res, set())
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class TestBuildDepData(unittest.TestCase):
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def test(self):
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names = ['network', 'virtual', 'env']
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'virtual': [default_collectors.LinuxVirtualCollector]}
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res = collector.build_dep_data(names, all_fact_subsets)
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# pprint.pprint(dict(res))
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self.assertIsInstance(res, defaultdict)
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self.assertEqual(dict(res),
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{'network': set(['platform', 'distribution']),
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'virtual': set(),
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'env': set()})
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class TestSolveDeps(unittest.TestCase):
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def test_no_solution(self):
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unresolved = set(['required_thing1', 'required_thing2'])
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'virtual': [default_collectors.LinuxVirtualCollector]}
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self.assertRaises(collector.CollectorNotFoundError,
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collector._solve_deps,
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unresolved,
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all_fact_subsets)
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def test(self):
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unresolved = set(['env', 'network'])
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'virtual': [default_collectors.LinuxVirtualCollector],
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'platform': [default_collectors.PlatformFactCollector],
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'distribution': [default_collectors.DistributionFactCollector]}
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res = collector.resolve_requires(unresolved, all_fact_subsets)
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res = collector._solve_deps(unresolved, all_fact_subsets)
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self.assertIsInstance(res, set)
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for goal in unresolved:
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self.assertIn(goal, res)
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class TestResolveRequires(unittest.TestCase):
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def test_no_resolution(self):
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unresolved = ['required_thing1', 'required_thing2']
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'virtual': [default_collectors.LinuxVirtualCollector]}
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self.assertRaisesRegexp(collector.UnresolvedFactDep,
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'unresolved fact dep.*required_thing2',
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collector.resolve_requires,
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unresolved, all_fact_subsets)
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def test(self):
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unresolved = ['env', 'network']
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all_fact_subsets = {'env': [default_collectors.EnvFactCollector],
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'network': [default_collectors.LinuxNetworkCollector],
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'virtual': [default_collectors.LinuxVirtualCollector]}
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res = collector.resolve_requires(unresolved, all_fact_subsets)
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for goal in unresolved:
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self.assertIn(goal, res)
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def test_exception(self):
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unresolved = ['required_thing1']
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all_fact_subsets = {}
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try:
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collector.resolve_requires(unresolved, all_fact_subsets)
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except collector.UnresolvedFactDep as exc:
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self.assertIn(unresolved[0], '%s' % exc)
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class TestTsort(unittest.TestCase):
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def test(self):
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dep_map = {'network': set(['distribution', 'platform']),
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'virtual': set(),
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'platform': set(['what_platform_wants']),
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'what_platform_wants': set(),
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'network_stuff': set(['network'])}
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res = collector.tsort(dep_map)
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# pprint.pprint(res)
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self.assertIsInstance(res, list)
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names = [x[0] for x in res]
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self.assertTrue(names.index('network_stuff') > names.index('network'))
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self.assertTrue(names.index('platform') > names.index('what_platform_wants'))
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self.assertTrue(names.index('network') > names.index('platform'))
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def test_cycles(self):
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dep_map = {'leaf1': set(),
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'leaf2': set(),
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'node1': set(['node2']),
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'node2': set(['node3']),
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'node3': set(['node1'])}
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self.assertRaises(collector.CycleFoundInFactDeps,
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collector.tsort,
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dep_map)
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def test_just_nodes(self):
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dep_map = {'leaf1': set(),
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'leaf4': set(),
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'leaf3': set(),
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'leaf2': set()}
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res = collector.tsort(dep_map)
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self.assertIsInstance(res, list)
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names = [x[0] for x in res]
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# not a lot to assert here, any order of the
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# results is valid
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self.assertEqual(set(names), set(dep_map.keys()))
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def test_self_deps(self):
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dep_map = {'node1': set(['node1']),
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'node2': set(['node2'])}
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self.assertRaises(collector.CycleFoundInFactDeps,
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collector.tsort,
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dep_map)
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def test_unsolvable(self):
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dep_map = {'leaf1': set(),
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'node2': set(['leaf2'])}
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res = collector.tsort(dep_map)
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self.assertIsInstance(res, list)
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names = [x[0] for x in res]
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self.assertEqual(set(names), set(dep_map.keys()))
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def test_chain(self):
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dep_map = {'leaf1': set(['leaf2']),
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'leaf2': set(['leaf3']),
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'leaf3': set(['leaf4']),
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'leaf4': set(),
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'leaf5': set(['leaf1'])}
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res = collector.tsort(dep_map)
|
|
self.assertIsInstance(res, list)
|
|
names = [x[0] for x in res]
|
|
self.assertEqual(set(names), set(dep_map.keys()))
|
|
|
|
def test_multi_pass(self):
|
|
dep_map = {'leaf1': set(),
|
|
'leaf2': set(['leaf3', 'leaf1', 'leaf4', 'leaf5']),
|
|
'leaf3': set(['leaf4', 'leaf1']),
|
|
'leaf4': set(['leaf1']),
|
|
'leaf5': set(['leaf1'])}
|
|
res = collector.tsort(dep_map)
|
|
self.assertIsInstance(res, list)
|
|
names = [x[0] for x in res]
|
|
self.assertEqual(set(names), set(dep_map.keys()))
|
|
self.assertTrue(names.index('leaf1') < names.index('leaf2'))
|
|
for leaf in ('leaf2', 'leaf3', 'leaf4', 'leaf5'):
|
|
self.assertTrue(names.index('leaf1') < names.index(leaf))
|
|
|
|
|
|
class TestCollectorClassesFromGatherSubset(unittest.TestCase):
|
|
maxDiff = None
|
|
|
|
def _classes(self,
|
|
all_collector_classes=None,
|
|
valid_subsets=None,
|
|
minimal_gather_subset=None,
|
|
gather_subset=None,
|
|
gather_timeout=None,
|
|
platform_info=None):
|
|
platform_info = platform_info or {'system': 'Linux'}
|
|
return collector.collector_classes_from_gather_subset(all_collector_classes=all_collector_classes,
|
|
valid_subsets=valid_subsets,
|
|
minimal_gather_subset=minimal_gather_subset,
|
|
gather_subset=gather_subset,
|
|
gather_timeout=gather_timeout,
|
|
platform_info=platform_info)
|
|
|
|
def test_no_args(self):
|
|
res = self._classes()
|
|
self.assertIsInstance(res, list)
|
|
self.assertEqual(res, [])
|
|
|
|
def test_not_all(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['!all'])
|
|
self.assertIsInstance(res, list)
|
|
self.assertEqual(res, [])
|
|
|
|
def test_all(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['all'])
|
|
self.assertIsInstance(res, list)
|
|
|
|
def test_hardware(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['hardware'])
|
|
self.assertIsInstance(res, list)
|
|
self.assertIn(default_collectors.PlatformFactCollector, res)
|
|
self.assertIn(default_collectors.LinuxHardwareCollector, res)
|
|
|
|
self.assertTrue(res.index(default_collectors.LinuxHardwareCollector) >
|
|
res.index(default_collectors.PlatformFactCollector))
|
|
|
|
def test_network(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['network'])
|
|
self.assertIsInstance(res, list)
|
|
self.assertIn(default_collectors.DistributionFactCollector, res)
|
|
self.assertIn(default_collectors.PlatformFactCollector, res)
|
|
self.assertIn(default_collectors.LinuxNetworkCollector, res)
|
|
|
|
self.assertTrue(res.index(default_collectors.LinuxNetworkCollector) >
|
|
res.index(default_collectors.PlatformFactCollector))
|
|
self.assertTrue(res.index(default_collectors.LinuxNetworkCollector) >
|
|
res.index(default_collectors.DistributionFactCollector))
|
|
|
|
# self.assertEqual(set(res, [default_collectors.DistributionFactCollector,
|
|
# default_collectors.PlatformFactCollector,
|
|
# default_collectors.LinuxNetworkCollector])
|
|
|
|
def test_env(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['env'])
|
|
self.assertIsInstance(res, list)
|
|
self.assertEqual(res, [default_collectors.EnvFactCollector])
|
|
|
|
def test_facter(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=set(['env', 'facter']))
|
|
self.assertIsInstance(res, list)
|
|
self.assertEqual(set(res),
|
|
set([default_collectors.EnvFactCollector,
|
|
default_collectors.FacterFactCollector]))
|
|
|
|
def test_facter_ohai(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=set(['env', 'facter', 'ohai']))
|
|
self.assertIsInstance(res, list)
|
|
self.assertEqual(set(res),
|
|
set([default_collectors.EnvFactCollector,
|
|
default_collectors.FacterFactCollector,
|
|
default_collectors.OhaiFactCollector]))
|
|
|
|
def test_just_facter(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=set(['facter']))
|
|
self.assertIsInstance(res, list)
|
|
self.assertEqual(set(res),
|
|
set([default_collectors.FacterFactCollector]))
|
|
|
|
def test_collector_specified_multiple_times(self):
|
|
res = self._classes(all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['platform', 'all', 'machine'])
|
|
self.assertIsInstance(res, list)
|
|
self.assertIn(default_collectors.PlatformFactCollector,
|
|
res)
|
|
|
|
def test_unknown_collector(self):
|
|
# something claims 'unknown_collector' is a valid gather_subset, but there is
|
|
# no FactCollector mapped to 'unknown_collector'
|
|
self.assertRaisesRegexp(TypeError,
|
|
r'Bad subset.*unknown_collector.*given to Ansible.*allowed\:.*all,.*env.*',
|
|
self._classes,
|
|
all_collector_classes=default_collectors.collectors,
|
|
gather_subset=['env', 'unknown_collector'])
|