ansible/test/units/modules/system/test_parted.py
Adam Miller bc7ff83cd9 parted module not idempotent for esp flag and name (#40547)
* parted module not idempotent for esp flag and name

Fixes #40452

Currently the parted module doesn't take into account names with
spaces in them which leads to non-idempotent transactions on the
state of the system because the name comparison will never succeed.

Also, when the esp flag is set, parted infers the boot flag and the
parted module did not previously account for this. This lead to
non-idempotent transactions as well.

Signed-off-by: Adam Miller <admiller@redhat.com>

* fix unit tests, expected command changed in the patch

Signed-off-by: Adam Miller <admiller@redhat.com>
2018-05-23 11:06:26 -04:00

240 lines
8.5 KiB
Python

# (c) 2017 Red Hat Inc.
#
# 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/>.
__metaclass__ = type
from ansible.compat.tests.mock import patch, call
from ansible.modules.system import parted as parted_module
from ansible.modules.system.parted import parse_partition_info
from units.modules.utils import AnsibleExitJson, AnsibleFailJson, ModuleTestCase, set_module_args
# Example of output : parted -s -m /dev/sdb -- unit 'MB' print
parted_output1 = """
BYT;
/dev/sdb:286061MB:scsi:512:512:msdos:ATA TOSHIBA THNSFJ25:;
1:1.05MB:106MB:105MB:fat32::esp;
2:106MB:368MB:262MB:ext2::;
3:368MB:256061MB:255692MB:::;"""
# corresponding dictionary after parsing by parse_partition_info
parted_dict1 = {
"generic": {
"dev": "/dev/sdb",
"size": 286061.0,
"unit": "mb",
"table": "msdos",
"model": "ATA TOSHIBA THNSFJ25",
"logical_block": 512,
"physical_block": 512
},
"partitions": [{
"num": 1,
"begin": 1.05,
"end": 106.0,
"size": 105.0,
"fstype": "fat32",
"name": '',
"flags": ["esp"],
"unit": "mb"
}, {
"num": 2,
"begin": 106.0,
"end": 368.0,
"size": 262.0,
"fstype": "ext2",
"name": '',
"flags": [],
"unit": "mb"
}, {
"num": 3,
"begin": 368.0,
"end": 256061.0,
"size": 255692.0,
"fstype": "",
"name": '',
"flags": [],
"unit": "mb"
}]
}
parted_output2 = """
BYT;
/dev/sdb:286061MB:scsi:512:512:msdos:ATA TOSHIBA THNSFJ25:;"""
# corresponding dictionary after parsing by parse_partition_info
parted_dict2 = {
"generic": {
"dev": "/dev/sdb",
"size": 286061.0,
"unit": "mb",
"table": "msdos",
"model": "ATA TOSHIBA THNSFJ25",
"logical_block": 512,
"physical_block": 512
},
"partitions": []
}
class TestParted(ModuleTestCase):
def setUp(self):
super(TestParted, self).setUp()
self.module = parted_module
self.mock_check_parted_label = (patch('ansible.modules.system.parted.check_parted_label', return_value=False))
self.check_parted_label = self.mock_check_parted_label.start()
self.mock_parted = (patch('ansible.modules.system.parted.parted'))
self.parted = self.mock_parted.start()
self.mock_run_command = (patch('ansible.module_utils.basic.AnsibleModule.run_command'))
self.run_command = self.mock_run_command.start()
self.mock_get_bin_path = (patch('ansible.module_utils.basic.AnsibleModule.get_bin_path'))
self.get_bin_path = self.mock_get_bin_path.start()
def tearDown(self):
super(TestParted, self).tearDown()
self.mock_run_command.stop()
self.mock_get_bin_path.stop()
self.mock_parted.stop()
self.mock_check_parted_label.stop()
def execute_module(self, failed=False, changed=False, script=None):
if failed:
result = self.failed()
self.assertTrue(result['failed'], result)
else:
result = self.changed(changed)
self.assertEqual(result['changed'], changed, result)
if script:
self.assertEqual(script, result['script'], result['script'])
return result
def failed(self):
with self.assertRaises(AnsibleFailJson) as exc:
self.module.main()
result = exc.exception.args[0]
self.assertTrue(result['failed'], result)
return result
def changed(self, changed=False):
with self.assertRaises(AnsibleExitJson) as exc:
self.module.main()
result = exc.exception.args[0]
self.assertEqual(result['changed'], changed, result)
return result
def test_parse_partition_info(self):
"""Test that the parse_partition_info returns the expected dictionary"""
self.assertEqual(parse_partition_info(parted_output1, 'MB'), parted_dict1)
self.assertEqual(parse_partition_info(parted_output2, 'MB'), parted_dict2)
def test_partition_already_exists(self):
set_module_args({
'device': '/dev/sdb',
'number': 1,
'state': 'present',
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
self.execute_module(changed=False)
def test_create_new_partition(self):
set_module_args({
'device': '/dev/sdb',
'number': 4,
'state': 'present',
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
self.execute_module(changed=True, script='unit KiB mkpart primary 0% 100%')
def test_create_new_partition_1G(self):
set_module_args({
'device': '/dev/sdb',
'number': 4,
'state': 'present',
'part_end': '1GiB',
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
self.execute_module(changed=True, script='unit KiB mkpart primary 0% 1GiB')
def test_remove_partition_number_1(self):
set_module_args({
'device': '/dev/sdb',
'number': 1,
'state': 'absent',
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
self.execute_module(changed=True, script='rm 1')
def test_change_flag(self):
# Flags are set in a second run of parted().
# Between the two runs, the partition dict is updated.
# use checkmode here allow us to continue even if the dictionary is
# not updated.
set_module_args({
'device': '/dev/sdb',
'number': 3,
'state': 'present',
'flags': ['lvm', 'boot'],
'_ansible_check_mode': True,
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
self.parted.reset_mock()
self.execute_module(changed=True)
# When using multiple flags:
# order of execution is non deterministic, because set() operations are used in
# the current implementation.
expected_calls_order1 = [call('unit KiB set 3 lvm on set 3 boot on ',
'/dev/sdb', 'optimal')]
expected_calls_order2 = [call('unit KiB set 3 boot on set 3 lvm on ',
'/dev/sdb', 'optimal')]
self.assertTrue(self.parted.mock_calls == expected_calls_order1 or
self.parted.mock_calls == expected_calls_order2)
def test_create_new_primary_lvm_partition(self):
# use check_mode, see previous test comment
set_module_args({
'device': '/dev/sdb',
'number': 4,
'flags': ["boot"],
'state': 'present',
'part_start': '257GiB',
'_ansible_check_mode': True,
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
self.execute_module(changed=True, script='unit KiB mkpart primary 257GiB 100% unit KiB set 4 boot on')
def test_create_label_gpt(self):
# Like previous test, current implementation use parted to create the partition and
# then retrieve and update the dictionary. Use check_mode to force to continue even if
# dictionary is not updated.
set_module_args({
'device': '/dev/sdb',
'number': 1,
'flags': ["lvm"],
'label': 'gpt',
'name': 'lvmpartition',
'state': 'present',
'_ansible_check_mode': True,
})
with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict2):
self.execute_module(changed=True, script='unit KiB mklabel gpt mkpart primary 0% 100% unit KiB name 1 \'"lvmpartition"\' set 1 lvm on')