ansible/test/units/executor/module_common/test_recursive_finder.py

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# (c) 2017, Toshio Kuratomi <tkuratomi@ansible.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 imp
import pytest
import zipfile
from collections import namedtuple
from functools import partial
from io import BytesIO, StringIO
import ansible.errors
from ansible.executor.module_common import recursive_finder
from ansible.module_utils.six import PY2
from ansible.module_utils.six.moves import builtins
original_find_module = imp.find_module
# These are the modules that are brought in by module_utils/basic.py This may need to be updated
# when basic.py gains new imports
# We will remove these when we modify AnsiBallZ to store its args in a separate file instead of in
# basic.py
MODULE_UTILS_BASIC_IMPORTS = frozenset((('_text',),
('basic',),
('common', '__init__'),
('common', '_collections_compat'),
('common', 'file'),
('common', 'process'),
('common', 'sys_info'),
('common', '_utils'),
('distro', '__init__'),
('distro', '_distro'),
('parsing', '__init__'),
('parsing', 'convert_bool'),
('pycompat24',),
('six', '__init__'),
))
MODULE_UTILS_BASIC_FILES = frozenset(('ansible/module_utils/_text.py',
'ansible/module_utils/basic.py',
'ansible/module_utils/common/__init__.py',
'ansible/module_utils/common/_collections_compat.py',
'ansible/module_utils/common/file.py',
'ansible/module_utils/common/process.py',
'ansible/module_utils/common/sys_info.py',
'ansible/module_utils/common/_utils.py',
'ansible/module_utils/distro/__init__.py',
'ansible/module_utils/distro/_distro.py',
'ansible/module_utils/parsing/__init__.py',
'ansible/module_utils/parsing/convert_bool.py',
'ansible/module_utils/pycompat24.py',
'ansible/module_utils/six/__init__.py',
))
ONLY_BASIC_IMPORT = frozenset((('basic',),))
ONLY_BASIC_FILE = frozenset(('ansible/module_utils/basic.py',))
@pytest.fixture
def finder_containers():
FinderContainers = namedtuple('FinderContainers', ['py_module_names', 'py_module_cache', 'zf'])
py_module_names = set()
# py_module_cache = {('__init__',): b''}
py_module_cache = {}
zipoutput = BytesIO()
zf = zipfile.ZipFile(zipoutput, mode='w', compression=zipfile.ZIP_STORED)
# zf.writestr('ansible/__init__.py', b'')
return FinderContainers(py_module_names, py_module_cache, zf)
def find_module_foo(module_utils_data, *args, **kwargs):
if args[0] == 'foo':
return (module_utils_data, '/usr/lib/python2.7/site-packages/ansible/module_utils/foo.py', ('.py', 'r', imp.PY_SOURCE))
return original_find_module(*args, **kwargs)
def find_package_foo(module_utils_data, *args, **kwargs):
if args[0] == 'foo':
return (module_utils_data, '/usr/lib/python2.7/site-packages/ansible/module_utils/foo', ('', '', imp.PKG_DIRECTORY))
return original_find_module(*args, **kwargs)
class TestRecursiveFinder(object):
def test_no_module_utils(self, finder_containers):
name = 'ping'
data = b'#!/usr/bin/python\nreturn \'{\"changed\": false}\''
recursive_finder(name, data, *finder_containers)
assert finder_containers.py_module_names == set(()).union(MODULE_UTILS_BASIC_IMPORTS)
assert finder_containers.py_module_cache == {}
assert frozenset(finder_containers.zf.namelist()) == MODULE_UTILS_BASIC_FILES
def test_module_utils_with_syntax_error(self, finder_containers):
name = 'fake_module'
data = b'#!/usr/bin/python\ndef something(:\n pass\n'
with pytest.raises(ansible.errors.AnsibleError) as exec_info:
recursive_finder(name, data, *finder_containers)
assert 'Unable to import fake_module due to invalid syntax' in str(exec_info)
def test_module_utils_with_identation_error(self, finder_containers):
name = 'fake_module'
data = b'#!/usr/bin/python\n def something():\n pass\n'
with pytest.raises(ansible.errors.AnsibleError) as exec_info:
recursive_finder(name, data, *finder_containers)
assert 'Unable to import fake_module due to unexpected indent' in str(exec_info)
def test_from_import_toplevel_package(self, finder_containers, mocker):
if PY2:
module_utils_data = BytesIO(b'# License\ndef do_something():\n pass\n')
else:
module_utils_data = StringIO(u'# License\ndef do_something():\n pass\n')
mocker.patch('imp.find_module', side_effect=partial(find_package_foo, module_utils_data))
mocker.patch('ansible.executor.module_common._slurp', side_effect=lambda x: b'# License\ndef do_something():\n pass\n')
name = 'ping'
data = b'#!/usr/bin/python\nfrom ansible.module_utils import foo'
recursive_finder(name, data, *finder_containers)
mocker.stopall()
assert finder_containers.py_module_names == set((('foo', '__init__'),)).union(ONLY_BASIC_IMPORT)
assert finder_containers.py_module_cache == {}
assert frozenset(finder_containers.zf.namelist()) == frozenset(('ansible/module_utils/foo/__init__.py',)).union(ONLY_BASIC_FILE)
def test_from_import_toplevel_module(self, finder_containers, mocker):
if PY2:
module_utils_data = BytesIO(b'# License\ndef do_something():\n pass\n')
else:
module_utils_data = StringIO(u'# License\ndef do_something():\n pass\n')
mocker.patch('imp.find_module', side_effect=partial(find_module_foo, module_utils_data))
name = 'ping'
data = b'#!/usr/bin/python\nfrom ansible.module_utils import foo'
recursive_finder(name, data, *finder_containers)
mocker.stopall()
assert finder_containers.py_module_names == set((('foo',),)).union(MODULE_UTILS_BASIC_IMPORTS)
assert finder_containers.py_module_cache == {}
assert frozenset(finder_containers.zf.namelist()) == frozenset(('ansible/module_utils/foo.py',)).union(MODULE_UTILS_BASIC_FILES)
#
# Test importing six with many permutations because it is not a normal module
#
def test_from_import_six(self, finder_containers):
name = 'ping'
data = b'#!/usr/bin/python\nfrom ansible.module_utils import six'
recursive_finder(name, data, *finder_containers)
assert finder_containers.py_module_names == set((('six', '__init__'),)).union(MODULE_UTILS_BASIC_IMPORTS)
assert finder_containers.py_module_cache == {}
assert frozenset(finder_containers.zf.namelist()) == frozenset(('ansible/module_utils/six/__init__.py', )).union(MODULE_UTILS_BASIC_FILES)
def test_import_six(self, finder_containers):
name = 'ping'
data = b'#!/usr/bin/python\nimport ansible.module_utils.six'
recursive_finder(name, data, *finder_containers)
assert finder_containers.py_module_names == set((('six', '__init__'),)).union(MODULE_UTILS_BASIC_IMPORTS)
assert finder_containers.py_module_cache == {}
assert frozenset(finder_containers.zf.namelist()) == frozenset(('ansible/module_utils/six/__init__.py', )).union(MODULE_UTILS_BASIC_FILES)
def test_import_six_from_many_submodules(self, finder_containers):
name = 'ping'
data = b'#!/usr/bin/python\nfrom ansible.module_utils.six.moves.urllib.parse import urlparse'
recursive_finder(name, data, *finder_containers)
assert finder_containers.py_module_names == set((('six', '__init__'),)).union(MODULE_UTILS_BASIC_IMPORTS)
assert finder_containers.py_module_cache == {}
assert frozenset(finder_containers.zf.namelist()) == frozenset(('ansible/module_utils/six/__init__.py',)).union(MODULE_UTILS_BASIC_FILES)