42ca1ef040
* Add unit tests for parted module
Test the current expected behavior of the module:
- mock parted() and get_device_info()
- Use some of the examples and test the 'script' passed to parted.
- mock check_parted_label() to return false, as if parted version is > 3.1
- assert get_device_info output is correct
Current implementation of the module runs parted several time while going
through all parameters (flags, name, ...). Between calls it uses get_device_info
to update the dictionary. Use check_mode for some of the tests to force module
to go through all the parameters even is dictionary is not updated.
* test_parted.py: add "name" param into expected results
since 78fff751ab, parse_partition_info
fetch the partition name. This commit adds 'name' key and value into
the expected results.
265 lines
9 KiB
Python
265 lines
9 KiB
Python
# (c) 2017 Red Hat Inc.
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#
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# This file is part of Ansible
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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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__metaclass__ = type
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import json
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from ansible.compat.tests import unittest
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from ansible.compat.tests.mock import patch, call
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from ansible.modules.system import parted as parted_module
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from ansible.modules.system.parted import parse_partition_info, parted
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from ansible.module_utils import basic
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from ansible.module_utils._text import to_bytes
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# Example of output : parted -s -m /dev/sdb -- unit 'MB' print
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parted_output1 = """
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BYT;
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/dev/sdb:286061MB:scsi:512:512:msdos:ATA TOSHIBA THNSFJ25:;
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1:1.05MB:106MB:105MB:fat32::esp;
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2:106MB:368MB:262MB:ext2::;
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3:368MB:256061MB:255692MB:::;"""
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# corresponding dictionary after parsing by parse_partition_info
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parted_dict1 = {
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"generic": {
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"dev": "/dev/sdb",
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"size": 286061.0,
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"unit": "mb",
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"table": "msdos",
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"model": "ATA TOSHIBA THNSFJ25",
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"logical_block": 512,
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"physical_block": 512
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},
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"partitions": [{
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"num": 1,
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"begin": 1.05,
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"end": 106.0,
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"size": 105.0,
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"fstype": "fat32",
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"name": '',
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"flags": ["esp"],
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"unit": "mb"
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}, {
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"num": 2,
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"begin": 106.0,
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"end": 368.0,
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"size": 262.0,
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"fstype": "ext2",
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"name": '',
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"flags": [],
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"unit": "mb"
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}, {
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"num": 3,
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"begin": 368.0,
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"end": 256061.0,
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"size": 255692.0,
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"fstype": "",
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"name": '',
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"flags": [],
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"unit": "mb"
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}]
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}
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parted_output2 = """
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BYT;
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/dev/sdb:286061MB:scsi:512:512:msdos:ATA TOSHIBA THNSFJ25:;"""
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# corresponding dictionary after parsing by parse_partition_info
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parted_dict2 = {
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"generic": {
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"dev": "/dev/sdb",
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"size": 286061.0,
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"unit": "mb",
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"table": "msdos",
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"model": "ATA TOSHIBA THNSFJ25",
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"logical_block": 512,
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"physical_block": 512
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},
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"partitions": []
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}
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class AnsibleExitJson(Exception):
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pass
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class AnsibleFailJson(Exception):
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pass
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def exit_json(*args, **kwargs):
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if 'changed' not in kwargs:
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kwargs['changed'] = False
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raise AnsibleExitJson(kwargs)
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def set_module_args(args):
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args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
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basic._ANSIBLE_ARGS = to_bytes(args)
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class TestParted(unittest.TestCase):
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def setUp(self):
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self.module = parted_module
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self.mock_check_parted_label = (patch('ansible.modules.system.parted.check_parted_label', return_value=False))
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self.check_parted_label = self.mock_check_parted_label.start()
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self.mock_parted = (patch('ansible.modules.system.parted.parted'))
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self.parted = self.mock_parted.start()
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self.mock_run_command = (patch('ansible.module_utils.basic.AnsibleModule.run_command'))
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self.run_command = self.mock_run_command.start()
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self.mock_get_bin_path = (patch('ansible.module_utils.basic.AnsibleModule.get_bin_path'))
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self.get_bin_path = self.mock_get_bin_path.start()
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def tearDown(self):
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self.mock_run_command.stop()
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self.mock_get_bin_path.stop()
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self.mock_parted.stop()
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self.mock_check_parted_label.stop()
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def execute_module(self, failed=False, changed=False, script=None):
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if failed:
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result = self.failed()
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self.assertTrue(result['failed'], result)
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else:
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result = self.changed(changed)
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self.assertEqual(result['changed'], changed, result)
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if script:
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self.assertEqual(script, result['script'], result['script'])
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return result
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def failed(self):
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def fail_json(*args, **kwargs):
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kwargs['failed'] = True
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raise AnsibleFailJson(kwargs)
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with patch.object(basic.AnsibleModule, 'fail_json', fail_json):
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with self.assertRaises(AnsibleFailJson) as exc:
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self.module.main()
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result = exc.exception.args[0]
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self.assertTrue(result['failed'], result)
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return result
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def changed(self, changed=False):
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with patch.object(basic.AnsibleModule, 'exit_json', exit_json):
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with self.assertRaises(AnsibleExitJson) as exc:
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self.module.main()
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result = exc.exception.args[0]
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self.assertEqual(result['changed'], changed, result)
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return result
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def test_parse_partition_info(self):
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"""Test that the parse_partition_info returns the expected dictionary"""
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self.assertEqual(parse_partition_info(parted_output1, 'MB'), parted_dict1)
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self.assertEqual(parse_partition_info(parted_output2, 'MB'), parted_dict2)
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def test_partition_already_exists(self):
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set_module_args({
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'device': '/dev/sdb',
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'number': 1,
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'state': 'present',
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
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self.execute_module(changed=False)
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def test_create_new_partition(self):
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set_module_args({
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'device': '/dev/sdb',
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'number': 4,
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'state': 'present',
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
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self.execute_module(changed=True, script='unit KiB mkpart primary 0% 100%')
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def test_create_new_partition_1G(self):
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set_module_args({
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'device': '/dev/sdb',
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'number': 4,
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'state': 'present',
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'part_end': '1GiB',
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
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self.execute_module(changed=True, script='unit KiB mkpart primary 0% 1GiB')
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def test_remove_partition_number_1(self):
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set_module_args({
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'device': '/dev/sdb',
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'number': 1,
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'state': 'absent',
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
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self.execute_module(changed=True, script='rm 1')
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def test_change_flag(self):
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# Flags are set in a second run of parted().
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# Between the two runs, the partition dict is updated.
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# use checkmode here allow us to continue even if the dictionary is
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# not updated.
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set_module_args({
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'device': '/dev/sdb',
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'number': 3,
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'state': 'present',
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'flags': ['lvm', 'boot'],
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'_ansible_check_mode': True,
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
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self.parted.reset_mock()
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self.execute_module(changed=True)
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# When using multiple flags:
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# order of execution is non deterministic, because set() operations are used in
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# the current implementation.
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expected_calls_order1 = [call('unit KiB set 3 lvm on set 3 boot on ',
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'/dev/sdb', 'optimal')]
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expected_calls_order2 = [call('unit KiB set 3 boot on set 3 lvm on ',
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'/dev/sdb', 'optimal')]
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self.assertTrue(self.parted.mock_calls == expected_calls_order1 or
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self.parted.mock_calls == expected_calls_order2)
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def test_create_new_primary_lvm_partition(self):
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# use check_mode, see previous test comment
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set_module_args({
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'device': '/dev/sdb',
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'number': 4,
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'flags': ["boot"],
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'state': 'present',
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'part_start': '257GiB',
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'_ansible_check_mode': True,
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict1):
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self.execute_module(changed=True, script='unit KiB mkpart primary 257GiB 100% unit KiB set 4 boot on')
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def test_create_label_gpt(self):
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# Like previous test, current implementation use parted to create the partition and
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# then retrieve and update the dictionary. Use check_mode to force to continue even if
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# dictionary is not updated.
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set_module_args({
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'device': '/dev/sdb',
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'number': 1,
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'flags': ["lvm"],
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'label': 'gpt',
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'name': 'lvmpartition',
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'state': 'present',
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'_ansible_check_mode': True,
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})
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with patch('ansible.modules.system.parted.get_device_info', return_value=parted_dict2):
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self.execute_module(changed=True, script='unit KiB mklabel gpt mkpart primary 0% 100% unit KiB name 1 lvmpartition set 1 lvm on')
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