salt/tests/unit/utils/test_systemd.py
Erik Johnson 3184168365 Use explicit unicode strings + break up salt.utils
This PR is part of what will be an ongoing effort to use explicit
unicode strings in Salt. Because Python 3 does not suport Python 2's raw
unicode string syntax (i.e. `ur'\d+'`), we must use
`salt.utils.locales.sdecode()` to ensure that the raw string is unicode.
However, because of how `salt/utils/__init__.py` has evolved into the
hulking monstrosity it is today, this means importing a large module in
places where it is not needed, which could negatively impact
performance. For this reason, this PR also breaks out some of the
functions from `salt/utils/__init__.py` into new/existing modules under
`salt/utils/`. The long term goal will be that the modules within this
directory do not depend on importing `salt.utils`.

A summary of the changes in this PR is as follows:

* Moves the following functions from `salt.utils` to new locations
  (including a deprecation warning if invoked from `salt.utils`):
  `to_bytes`, `to_str`, `to_unicode`, `str_to_num`, `is_quoted`,
  `dequote`, `is_hex`, `is_bin_str`, `rand_string`,
  `contains_whitespace`, `clean_kwargs`, `invalid_kwargs`, `which`,
  `which_bin`, `path_join`, `shlex_split`, `rand_str`, `is_windows`,
  `is_proxy`, `is_linux`, `is_darwin`, `is_sunos`, `is_smartos`,
  `is_smartos_globalzone`, `is_smartos_zone`, `is_freebsd`, `is_netbsd`,
  `is_openbsd`, `is_aix`
* Moves the functions already deprecated by @rallytime to the bottom of
  `salt/utils/__init__.py` for better organization, so we can keep the
  deprecated ones separate from the ones yet to be deprecated as we
  continue to break up `salt.utils`
* Updates `salt/*.py` and all files under `salt/client/` to use explicit
  unicode string literals.
* Gets rid of implicit imports of `salt.utils` (e.g. `from salt.utils
  import foo` becomes `import salt.utils.foo as foo`).
* Renames the `test.rand_str` function to `test.random_hash` to more
  accurately reflect what it does
* Modifies `salt.utils.stringutils.random()` (née `salt.utils.rand_string()`)
  such that it returns a string matching the passed size. Previously
  this function would get `size` bytes from `os.urandom()`,
  base64-encode it, and return the result, which would in most cases not
  be equal to the passed size.
2017-08-08 13:33:43 -05:00

283 lines
12 KiB
Python

# -*- coding: utf-8 -*-
# Import python libs
from __future__ import absolute_import
import errno
import os
# Import Salt Testing libs
from tests.support.unit import TestCase, skipIf
from tests.support.mock import Mock, patch, NO_MOCK, NO_MOCK_REASON
# Import Salt libs
import salt.utils.systemd as _systemd
from salt.exceptions import SaltInvocationError
def _booted_effect(path):
return True if path == '/run/systemd/system' else os.stat(path)
def _not_booted_effect(path):
if path == '/run/systemd/system':
raise OSError(errno.ENOENT, 'No such file or directory', path)
return os.stat(path)
@skipIf(NO_MOCK, NO_MOCK_REASON)
class SystemdTestCase(TestCase):
'''
Tests the functions in salt.utils.systemd
'''
def test_booted(self):
'''
Test that salt.utils.systemd.booted() returns True when minion is
systemd-booted.
'''
# Ensure that os.stat returns True. os.stat doesn't return a bool
# normally, but the code is doing a simple truth check on the return
# data, so it is sufficient enough to mock it as True for these tests.
with patch('os.stat', side_effect=_booted_effect):
# Test without context dict passed
self.assertTrue(_systemd.booted())
# Test that context key is set when context dict is passed
context = {}
self.assertTrue(_systemd.booted(context))
self.assertEqual(context, {'salt.utils.systemd.booted': True})
def test_not_booted(self):
'''
Test that salt.utils.systemd.booted() returns False when minion is not
systemd-booted.
'''
# Ensure that os.stat raises an exception even if test is being run on
# a systemd-booted host.
with patch('os.stat', side_effect=_not_booted_effect):
# Test without context dict passed
self.assertFalse(_systemd.booted())
# Test that context key is set when context dict is passed
context = {}
self.assertFalse(_systemd.booted(context))
self.assertEqual(context, {'salt.utils.systemd.booted': False})
def test_booted_return_from_context(self):
'''
Test that the context data is returned when present. To ensure we're
getting data from the context dict, we use a non-boolean value to
differentiate it from the True/False return this function normally
produces.
'''
context = {'salt.utils.systemd.booted': 'foo'}
self.assertEqual(_systemd.booted(context), 'foo')
def test_booted_invalid_context(self):
'''
Test with invalid context data. The context value must be a dict, so
this should raise a SaltInvocationError.
'''
# Test with invalid context data
with self.assertRaises(SaltInvocationError):
_systemd.booted(99999)
def test_version(self):
'''
Test that salt.utils.systemd.booted() returns True when minion is
systemd-booted.
'''
with patch('subprocess.Popen') as popen_mock:
_version = 231
output = 'systemd {0}\n-SYSVINIT'.format(_version)
popen_mock.return_value = Mock(
communicate=lambda *args, **kwargs: (output, None),
pid=lambda: 12345,
retcode=0
)
# Test without context dict passed
self.assertEqual(_systemd.version(), _version)
# Test that context key is set when context dict is passed
context = {}
self.assertTrue(_systemd.version(context))
self.assertEqual(context, {'salt.utils.systemd.version': _version})
def test_version_return_from_context(self):
'''
Test that the context data is returned when present. To ensure we're
getting data from the context dict, we use a non-integer value to
differentiate it from the integer return this function normally
produces.
'''
context = {'salt.utils.systemd.version': 'foo'}
self.assertEqual(_systemd.version(context), 'foo')
def test_version_invalid_context(self):
'''
Test with invalid context data. The context value must be a dict, so
this should raise a SaltInvocationError.
'''
# Test with invalid context data
with self.assertRaises(SaltInvocationError):
_systemd.version(99999)
def test_version_parse_problem(self):
'''
Test with invalid context data. The context value must be a dict, so
this should raise a SaltInvocationError.
'''
with patch('subprocess.Popen') as popen_mock:
popen_mock.return_value = Mock(
communicate=lambda *args, **kwargs: ('invalid', None),
pid=lambda: 12345,
retcode=0
)
# Test without context dict passed
self.assertIsNone(_systemd.version())
# Test that context key is set when context dict is passed. A failure
# to parse the systemctl output should not set a context key, so it
# should not be present in the context dict.
context = {}
self.assertIsNone(_systemd.version(context))
self.assertEqual(context, {})
def test_has_scope_systemd204(self):
'''
Scopes are available in systemd>=205. Make sure that this function
returns the expected boolean. We do three separate unit tests for
versions 204 through 206 because mock doesn't like us altering the
return_value in a loop.
'''
with patch('subprocess.Popen') as popen_mock:
_expected = False
_version = 204
_output = 'systemd {0}\n-SYSVINIT'.format(_version)
popen_mock.return_value = Mock(
communicate=lambda *args, **kwargs: (_output, None),
pid=lambda: 12345,
retcode=0
)
# Ensure that os.stat returns True. os.stat doesn't return a bool
# normally, but the code is doing a simple truth check on the
# return data, so it is sufficient enough to mock it as True for
# these tests.
with patch('os.stat', side_effect=_booted_effect):
# Test without context dict passed
self.assertEqual(_systemd.has_scope(), _expected)
# Test that context key is set when context dict is passed
context = {}
self.assertEqual(_systemd.has_scope(context), _expected)
self.assertEqual(
context,
{'salt.utils.systemd.booted': True,
'salt.utils.systemd.version': _version},
)
def test_has_scope_systemd205(self):
'''
Scopes are available in systemd>=205. Make sure that this function
returns the expected boolean. We do three separate unit tests for
versions 204 through 206 because mock doesn't like us altering the
return_value in a loop.
'''
with patch('subprocess.Popen') as popen_mock:
_expected = True
_version = 205
_output = 'systemd {0}\n-SYSVINIT'.format(_version)
popen_mock.return_value = Mock(
communicate=lambda *args, **kwargs: (_output, None),
pid=lambda: 12345,
retcode=0
)
# Ensure that os.stat returns True. os.stat doesn't return a bool
# normally, but the code is doing a simple truth check on the
# return data, so it is sufficient enough to mock it as True for
# these tests.
with patch('os.stat', side_effect=_booted_effect):
# Test without context dict passed
self.assertEqual(_systemd.has_scope(), _expected)
# Test that context key is set when context dict is passed
context = {}
self.assertEqual(_systemd.has_scope(context), _expected)
self.assertEqual(
context,
{'salt.utils.systemd.booted': True,
'salt.utils.systemd.version': _version},
)
def test_has_scope_systemd206(self):
'''
Scopes are available in systemd>=205. Make sure that this function
returns the expected boolean. We do three separate unit tests for
versions 204 through 206 because mock doesn't like us altering the
return_value in a loop.
'''
with patch('subprocess.Popen') as popen_mock:
_expected = True
_version = 206
_output = 'systemd {0}\n-SYSVINIT'.format(_version)
popen_mock.return_value = Mock(
communicate=lambda *args, **kwargs: (_output, None),
pid=lambda: 12345,
retcode=0
)
# Ensure that os.stat returns True. os.stat doesn't return a bool
# normally, but the code is doing a simple truth check on the
# return data, so it is sufficient enough to mock it as True for
# these tests.
with patch('os.stat', side_effect=_booted_effect):
# Test without context dict passed
self.assertEqual(_systemd.has_scope(), _expected)
# Test that context key is set when context dict is passed
context = {}
self.assertEqual(_systemd.has_scope(context), _expected)
self.assertEqual(
context,
{'salt.utils.systemd.booted': True,
'salt.utils.systemd.version': _version},
)
def test_has_scope_no_systemd(self):
'''
Test the case where the system is not systemd-booted. We should not be
performing a version check in these cases as there is no need.
'''
with patch('os.stat', side_effect=_not_booted_effect):
# Test without context dict passed
self.assertFalse(_systemd.has_scope())
# Test that context key is set when context dict is passed.
# Because we are not systemd-booted, there should be no key in the
# context dict for the version check, as we shouldn't have
# performed this check.
context = {}
self.assertFalse(_systemd.has_scope(context))
self.assertEqual(context, {'salt.utils.systemd.booted': False})
def test_has_scope_version_parse_problem(self):
'''
Test the case where the system is systemd-booted, but we failed to
parse the "systemctl --version" output.
'''
with patch('subprocess.Popen') as popen_mock:
popen_mock.return_value = Mock(
communicate=lambda *args, **kwargs: ('invalid', None),
pid=lambda: 12345,
retcode=0
)
with patch('os.stat', side_effect=_booted_effect):
# Test without context dict passed
self.assertFalse(_systemd.has_scope())
# Test that context key is set when context dict is passed. A
# failure to parse the systemctl output should not set a context
# key, so it should not be present in the context dict.
context = {}
self.assertFalse(_systemd.has_scope(context))
self.assertEqual(context, {'salt.utils.systemd.booted': True})
def test_has_scope_invalid_context(self):
'''
Test with invalid context data. The context value must be a dict, so
this should raise a SaltInvocationError.
'''
# Test with invalid context data
with self.assertRaises(SaltInvocationError):
_systemd.has_scope(99999)