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community.general/test/units/module_utils/basic/test_run_command.py
nitzmahone 5b336832af add _load_params debug overrides for module args/file passed on cmdline
Updated python module wrapper explode method to drop 'args' file next to module.
Both execute() and excommunicate() debug methods now pass the module args via file to enable debuggers that are picky about stdin.
Updated unit tests to use a context manager for masking/restoring default streams and argv.
2016-04-18 11:06:46 -07:00

186 lines
7.3 KiB
Python

# -*- coding: utf-8 -*-
#
# 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)
__metaclass__ = type
import errno
import json
import sys
import time
from io import BytesIO, StringIO
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import call, MagicMock, Mock, patch, sentinel
from units.mock.procenv import swap_stdin_and_argv
from ansible.module_utils import basic
from ansible.module_utils.basic import AnsibleModule
class OpenBytesIO(BytesIO):
"""BytesIO with dummy close() method
So that you can inspect the content after close() was called.
"""
def close(self):
pass
@unittest.skipIf(sys.version_info[0] >= 3, "Python 3 is not supported on targets (yet)")
class TestAnsibleModuleRunCommand(unittest.TestCase):
def setUp(self):
self.cmd_out = {
# os.read() is returning 'bytes', not strings
sentinel.stdout: BytesIO(),
sentinel.stderr: BytesIO(),
}
def mock_os_read(fd, nbytes):
return self.cmd_out[fd].read(nbytes)
def mock_select(rlist, wlist, xlist, timeout=1):
return (rlist, [], [])
def mock_os_chdir(path):
if path == '/inaccessible':
raise OSError(errno.EPERM, "Permission denied: '/inaccessible'")
args = json.dumps(dict(ANSIBLE_MODULE_ARGS={}, ANSIBLE_MODULE_CONSTANTS={}))
# unittest doesn't have a clean place to use a context manager, so we have to enter/exit manually
self.stdin_swap = swap_stdin_and_argv(stdin_data=args)
self.stdin_swap.__enter__()
self.module = AnsibleModule(argument_spec=dict())
self.module.fail_json = MagicMock(side_effect=SystemExit)
self.os = patch('ansible.module_utils.basic.os').start()
self.os.path.expandvars.side_effect = lambda x: x
self.os.path.expanduser.side_effect = lambda x: x
self.os.environ = {'PATH': '/bin'}
self.os.getcwd.return_value = '/home/foo'
self.os.path.isdir.return_value = True
self.os.chdir.side_effect = mock_os_chdir
self.os.read.side_effect = mock_os_read
self.subprocess = patch('ansible.module_utils.basic.subprocess').start()
self.cmd = Mock()
self.cmd.returncode = 0
self.cmd.stdin = OpenBytesIO()
self.cmd.stdout.fileno.return_value = sentinel.stdout
self.cmd.stderr.fileno.return_value = sentinel.stderr
self.subprocess.Popen.return_value = self.cmd
self.select = patch('ansible.module_utils.basic.select').start()
self.select.select.side_effect = mock_select
self.addCleanup(patch.stopall)
def tearDown(self):
# unittest doesn't have a clean place to use a context manager, so we have to enter/exit manually
self.stdin_swap.__exit__(None, None, None)
def test_list_as_args(self):
self.module.run_command(['/bin/ls', 'a', ' b', 'c '])
self.assertTrue(self.subprocess.Popen.called)
args, kwargs = self.subprocess.Popen.call_args
self.assertEqual(args, (['/bin/ls', 'a', ' b', 'c '], ))
self.assertEqual(kwargs['shell'], False)
def test_str_as_args(self):
self.module.run_command('/bin/ls a " b" "c "')
self.assertTrue(self.subprocess.Popen.called)
args, kwargs = self.subprocess.Popen.call_args
self.assertEqual(args, (['/bin/ls', 'a', ' b', 'c '], ))
self.assertEqual(kwargs['shell'], False)
def test_tuple_as_args(self):
self.assertRaises(SystemExit, self.module.run_command, ('ls', '/'))
self.assertTrue(self.module.fail_json.called)
def test_unsafe_shell(self):
self.module.run_command('ls a " b" "c "', use_unsafe_shell=True)
self.assertTrue(self.subprocess.Popen.called)
args, kwargs = self.subprocess.Popen.call_args
self.assertEqual(args, ('ls a " b" "c "', ))
self.assertEqual(kwargs['shell'], True)
def test_cwd(self):
self.os.getcwd.return_value = '/old'
self.module.run_command('/bin/ls', cwd='/new')
self.assertEqual(self.os.chdir.mock_calls,
[call('/new'), call('/old'), ])
def test_cwd_not_a_dir(self):
self.os.getcwd.return_value = '/old'
self.os.path.isdir.side_effect = lambda d: d != '/not-a-dir'
self.module.run_command('/bin/ls', cwd='/not-a-dir')
self.assertEqual(self.os.chdir.mock_calls, [call('/old'), ])
def test_cwd_inaccessible(self):
self.assertRaises(SystemExit, self.module.run_command, '/bin/ls', cwd='/inaccessible')
self.assertTrue(self.module.fail_json.called)
args, kwargs = self.module.fail_json.call_args
self.assertEqual(kwargs['rc'], errno.EPERM)
def test_prompt_bad_regex(self):
self.assertRaises(SystemExit, self.module.run_command, 'foo', prompt_regex='[pP)assword:')
self.assertTrue(self.module.fail_json.called)
def test_prompt_no_match(self):
self.cmd_out[sentinel.stdout] = BytesIO(b'hello')
(rc, _, _) = self.module.run_command('foo', prompt_regex='[pP]assword:')
self.assertEqual(rc, 0)
def test_prompt_match_wo_data(self):
self.cmd_out[sentinel.stdout] = BytesIO(b'Authentication required!\nEnter password: ')
(rc, _, _) = self.module.run_command('foo', prompt_regex=r'[pP]assword:', data=None)
self.assertEqual(rc, 257)
def test_check_rc_false(self):
self.cmd.returncode = 1
(rc, _, _) = self.module.run_command('/bin/false', check_rc=False)
self.assertEqual(rc, 1)
def test_check_rc_true(self):
self.cmd.returncode = 1
self.assertRaises(SystemExit, self.module.run_command, '/bin/false', check_rc=True)
self.assertTrue(self.module.fail_json.called)
args, kwargs = self.module.fail_json.call_args
self.assertEqual(kwargs['rc'], 1)
def test_text_stdin(self):
(rc, stdout, stderr) = self.module.run_command('/bin/foo', data='hello world')
self.assertEqual(self.cmd.stdin.getvalue(), 'hello world\n')
def test_ascii_stdout(self):
self.cmd_out[sentinel.stdout] = BytesIO(b'hello')
(rc, stdout, stderr) = self.module.run_command('/bin/cat hello.txt')
self.assertEqual(rc, 0)
self.assertEqual(stdout, 'hello')
def test_utf8_output(self):
self.cmd_out[sentinel.stdout] = BytesIO(u'Žarn§'.encode('utf-8'))
self.cmd_out[sentinel.stderr] = BytesIO(u'لرئيسية'.encode('utf-8'))
(rc, stdout, stderr) = self.module.run_command('/bin/something_ugly')
self.assertEqual(rc, 0)
self.assertEqual(stdout.decode('utf-8'), u'Žarn§')
self.assertEqual(stderr.decode('utf-8'), u'لرئيسية')