ansible/test/units/plugins/inventory/test_inventory.py
Sam Doran 987265a6ef
Account for empty strings when splitting the host pattern ()
Improve tests
- add more unit test cases
- add specific integration test with more cases

Testing shows no major downside to calling .strip() twice in a comprehension vs. using a regular for loop and only calling .strip() once. Going with the comprehension for ease of maintenance and because comprehensions are optimized in CPython.
2019-09-20 16:03:51 -04:00

207 lines
7.4 KiB
Python

# Copyright 2015 Abhijit Menon-Sen <ams@2ndQuadrant.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import string
import textwrap
from ansible import constants as C
from units.compat import mock
from units.compat import unittest
from ansible.module_utils.six import string_types
from ansible.module_utils._text import to_text
from units.mock.path import mock_unfrackpath_noop
from ansible.inventory.manager import InventoryManager, split_host_pattern
from units.mock.loader import DictDataLoader
class TestInventory(unittest.TestCase):
patterns = {
'a': ['a'],
'a, b': ['a', 'b'],
'a , b': ['a', 'b'],
' a,b ,c[1:2] ': ['a', 'b', 'c[1:2]'],
'9a01:7f8:191:7701::9': ['9a01:7f8:191:7701::9'],
'9a01:7f8:191:7701::9,9a01:7f8:191:7701::9': ['9a01:7f8:191:7701::9', '9a01:7f8:191:7701::9'],
'9a01:7f8:191:7701::9,9a01:7f8:191:7701::9,foo': ['9a01:7f8:191:7701::9', '9a01:7f8:191:7701::9', 'foo'],
'foo[1:2]': ['foo[1:2]'],
'a::b': ['a::b'],
'a:b': ['a', 'b'],
' a : b ': ['a', 'b'],
'foo:bar:baz[1:2]': ['foo', 'bar', 'baz[1:2]'],
'a,,b': ['a', 'b'],
'a, ,b,,c, ,': ['a', 'b', 'c'],
',': [],
'': [],
}
pattern_lists = [
[['a'], ['a']],
[['a', 'b'], ['a', 'b']],
[['a, b'], ['a', 'b']],
[['9a01:7f8:191:7701::9', '9a01:7f8:191:7701::9,foo'],
['9a01:7f8:191:7701::9', '9a01:7f8:191:7701::9', 'foo']]
]
# pattern_string: [ ('base_pattern', (a,b)), ['x','y','z'] ]
# a,b are the bounds of the subscript; x..z are the results of the subscript
# when applied to string.ascii_letters.
subscripts = {
'a': [('a', None), list(string.ascii_letters)],
'a[0]': [('a', (0, None)), ['a']],
'a[1]': [('a', (1, None)), ['b']],
'a[2:3]': [('a', (2, 3)), ['c', 'd']],
'a[-1]': [('a', (-1, None)), ['Z']],
'a[-2]': [('a', (-2, None)), ['Y']],
'a[48:]': [('a', (48, -1)), ['W', 'X', 'Y', 'Z']],
'a[49:]': [('a', (49, -1)), ['X', 'Y', 'Z']],
'a[1:]': [('a', (1, -1)), list(string.ascii_letters[1:])],
}
ranges_to_expand = {
'a[1:2]': ['a1', 'a2'],
'a[1:10:2]': ['a1', 'a3', 'a5', 'a7', 'a9'],
'a[a:b]': ['aa', 'ab'],
'a[a:i:3]': ['aa', 'ad', 'ag'],
'a[a:b][c:d]': ['aac', 'aad', 'abc', 'abd'],
'a[0:1][2:3]': ['a02', 'a03', 'a12', 'a13'],
'a[a:b][2:3]': ['aa2', 'aa3', 'ab2', 'ab3'],
}
def setUp(self):
fake_loader = DictDataLoader({})
self.i = InventoryManager(loader=fake_loader, sources=[None])
def test_split_patterns(self):
for p in self.patterns:
r = self.patterns[p]
self.assertEqual(r, split_host_pattern(p))
for p, r in self.pattern_lists:
self.assertEqual(r, split_host_pattern(p))
def test_ranges(self):
for s in self.subscripts:
r = self.subscripts[s]
self.assertEqual(r[0], self.i._split_subscript(s))
self.assertEqual(
r[1],
self.i._apply_subscript(
list(string.ascii_letters),
r[0][1]
)
)
class TestInventoryPlugins(unittest.TestCase):
def test_empty_inventory(self):
inventory = self._get_inventory('')
self.assertIn('all', inventory.groups)
self.assertIn('ungrouped', inventory.groups)
self.assertFalse(inventory.groups['all'].get_hosts())
self.assertFalse(inventory.groups['ungrouped'].get_hosts())
def test_ini(self):
self._test_default_groups("""
host1
host2
host3
[servers]
host3
host4
host5
""")
def test_ini_explicit_ungrouped(self):
self._test_default_groups("""
[ungrouped]
host1
host2
host3
[servers]
host3
host4
host5
""")
def test_ini_variables_stringify(self):
values = ['string', 'no', 'No', 'false', 'FALSE', [], False, 0]
inventory_content = "host1 "
inventory_content += ' '.join(['var%s=%s' % (i, to_text(x)) for i, x in enumerate(values)])
inventory = self._get_inventory(inventory_content)
variables = inventory.get_host('host1').vars
for i in range(len(values)):
if isinstance(values[i], string_types):
self.assertIsInstance(variables['var%s' % i], string_types)
else:
self.assertIsInstance(variables['var%s' % i], type(values[i]))
@mock.patch('ansible.inventory.manager.unfrackpath', mock_unfrackpath_noop)
@mock.patch('os.path.exists', lambda x: True)
@mock.patch('os.access', lambda x, y: True)
def test_yaml_inventory(self, filename="test.yaml"):
inventory_content = {filename: textwrap.dedent("""\
---
all:
hosts:
test1:
test2:
""")}
C.INVENTORY_ENABLED = ['yaml']
fake_loader = DictDataLoader(inventory_content)
im = InventoryManager(loader=fake_loader, sources=filename)
self.assertTrue(im._inventory.hosts)
self.assertIn('test1', im._inventory.hosts)
self.assertIn('test2', im._inventory.hosts)
self.assertIn(im._inventory.get_host('test1'), im._inventory.groups['all'].hosts)
self.assertIn(im._inventory.get_host('test2'), im._inventory.groups['all'].hosts)
self.assertEqual(len(im._inventory.groups['all'].hosts), 2)
self.assertIn(im._inventory.get_host('test1'), im._inventory.groups['ungrouped'].hosts)
self.assertIn(im._inventory.get_host('test2'), im._inventory.groups['ungrouped'].hosts)
self.assertEqual(len(im._inventory.groups['ungrouped'].hosts), 2)
def _get_inventory(self, inventory_content):
fake_loader = DictDataLoader({__file__: inventory_content})
return InventoryManager(loader=fake_loader, sources=[__file__])
def _test_default_groups(self, inventory_content):
inventory = self._get_inventory(inventory_content)
self.assertIn('all', inventory.groups)
self.assertIn('ungrouped', inventory.groups)
all_hosts = set(host.name for host in inventory.groups['all'].get_hosts())
self.assertEqual(set(['host1', 'host2', 'host3', 'host4', 'host5']), all_hosts)
ungrouped_hosts = set(host.name for host in inventory.groups['ungrouped'].get_hosts())
self.assertEqual(set(['host1', 'host2']), ungrouped_hosts)
servers_hosts = set(host.name for host in inventory.groups['servers'].get_hosts())
self.assertEqual(set(['host3', 'host4', 'host5']), servers_hosts)