Current File : //usr/lib/python2.7/site-packages/salt/modules/saltcheck.py
# -*- coding: utf-8 -*-
'''
A module for testing the logic of states and highstates
:codeauthor: William Cannon <william.cannon@gmail.com>
:maturity: new
Saltcheck provides unittest like functionality requiring only the knowledge of
salt module execution and yaml.
In order to run state and highstate saltcheck tests a sub-folder of a state must
be created and named ``saltcheck-tests``.
Tests for a state should be created in files ending in ``*.tst`` and placed in
the ``saltcheck-tests`` folder.
Multiple tests can be created in a file. Multiple ``*.tst`` files can be
created in the ``saltcheck-tests`` folder. Salt rendering is supported in test
files (e.g. ``yaml + jinja``). The ``id`` of a test works in the same manner as
in salt state files. They should be unique and descriptive.
Example file system layout:
.. code-block: txt
/srv/salt/apache/
init.sls
config.sls
saltcheck-tests/
pkg_and_mods.tst
config.tst
Example:
.. code-block:: yaml
echo-test-hello:
module_and_function: test.echo
args:
- "hello"
kwargs:
assertion: assertEqual
expected-return: 'hello'
'''
# Import Python libs
from __future__ import absolute_import, unicode_literals, print_function
import logging
import os
import time
from json import loads, dumps
# Import Salt libs
import salt.utils.files
import salt.utils.path
import salt.utils.yaml
import salt.client
import salt.exceptions
from salt.ext import six
log = logging.getLogger(__name__)
__virtualname__ = 'saltcheck'
def __virtual__():
'''
Check dependencies - may be useful in future
'''
return __virtualname__
def update_master_cache():
'''
Updates the master cache onto the minion - transfers all salt-check-tests
Should be done one time before running tests, and if tests are updated
Can be automated by setting "auto_update_master_cache: True" in minion config
CLI Example:
.. code-block:: bash
salt '*' saltcheck.update_master_cache
'''
__salt__['cp.cache_master']()
return True
def run_test(**kwargs):
'''
Execute one saltcheck test and return result
:param keyword arg test:
CLI Example:
.. code-block:: bash
salt '*' saltcheck.run_test
test='{"module_and_function": "test.echo",
"assertion": "assertEqual",
"expected-return": "This works!",
"args":["This works!"] }'
'''
# salt converts the string to a dictionary auto-magically
scheck = SaltCheck()
test = kwargs.get('test', None)
if test and isinstance(test, dict):
return scheck.run_test(test)
else:
return "Test must be a dictionary"
def run_state_tests(state):
'''
Execute all tests for a salt state and return results
Nested states will also be tested
:param str state: the name of a user defined state
CLI Example:
.. code-block:: bash
salt '*' saltcheck.run_state_tests postfix
'''
scheck = SaltCheck()
paths = scheck.get_state_search_path_list()
stl = StateTestLoader(search_paths=paths)
results = {}
sls_list = _get_state_sls(state)
for state_name in sls_list:
mypath = stl.convert_sls_to_path(state_name)
stl.add_test_files_for_sls(mypath)
stl.load_test_suite()
results_dict = {}
for key, value in stl.test_dict.items():
result = scheck.run_test(value)
results_dict[key] = result
results[state_name] = results_dict
passed = 0
failed = 0
missing_tests = 0
for state in results:
if len(results[state].items()) == 0:
missing_tests = missing_tests + 1
else:
for dummy, val in results[state].items():
log.info("dummy=%s, val=%s", dummy, val)
if val.startswith('Pass'):
passed = passed + 1
if val.startswith('Fail'):
failed = failed + 1
out_list = []
for key, value in results.items():
out_list.append({key: value})
out_list.sort()
out_list.append({"TEST RESULTS": {'Passed': passed, 'Failed': failed, 'Missing Tests': missing_tests}})
return out_list
def run_highstate_tests():
'''
Execute all tests for a salt highstate and return results
CLI Example:
.. code-block:: bash
salt '*' saltcheck.run_highstate_tests
'''
scheck = SaltCheck()
paths = scheck.get_state_search_path_list()
stl = StateTestLoader(search_paths=paths)
results = {}
sls_list = _get_top_states()
all_states = []
for top_state in sls_list:
sls_list = _get_state_sls(top_state)
for state in sls_list:
if state not in all_states:
all_states.append(state)
for state_name in all_states:
mypath = stl.convert_sls_to_path(state_name)
stl.add_test_files_for_sls(mypath)
stl.load_test_suite()
results_dict = {}
for key, value in stl.test_dict.items():
result = scheck.run_test(value)
results_dict[key] = result
results[state_name] = results_dict
passed = 0
failed = 0
missing_tests = 0
for state in results:
if len(results[state].items()) == 0:
missing_tests = missing_tests + 1
else:
for dummy, val in results[state].items():
log.info("dummy=%s, val=%s", dummy, val)
if val.startswith('Pass'):
passed = passed + 1
if val.startswith('Fail'):
failed = failed + 1
out_list = []
for key, value in results.items():
out_list.append({key: value})
out_list.sort()
out_list.append({"TEST RESULTS": {'Passed': passed, 'Failed': failed, 'Missing Tests': missing_tests}})
return out_list
def _render_file(file_path):
'''
call the salt utility to render a file
'''
# salt-call slsutil.renderer /srv/salt/jinjatest/saltcheck-tests/test1.tst
rendered = __salt__['slsutil.renderer'](file_path)
log.info("rendered: %s", rendered)
return rendered
def _is_valid_module(module):
'''
Return a list of all modules available on minion
'''
modules = __salt__['sys.list_modules']()
return bool(module in modules)
def _get_auto_update_cache_value():
'''
Return the config value of auto_update_master_cache
'''
__salt__['config.get']('auto_update_master_cache')
return True
def _is_valid_function(module_name, function):
'''
Determine if a function is valid for a module
'''
try:
functions = __salt__['sys.list_functions'](module_name)
except salt.exceptions.SaltException:
functions = ["unable to look up functions"]
return "{0}.{1}".format(module_name, function) in functions
def _get_top_states():
'''
Equivalent to a salt cli: salt web state.show_top
'''
alt_states = []
try:
returned = __salt__['state.show_top']()
for i in returned['base']:
alt_states.append(i)
except Exception:
raise
# log.info("top states: %s", alt_states)
return alt_states
def _get_state_sls(state):
'''
Equivalent to a salt cli: salt web state.show_low_sls STATE
'''
sls_list_state = []
try:
returned = __salt__['state.show_low_sls'](state)
for i in returned:
if i['__sls__'] not in sls_list_state:
sls_list_state.append(i['__sls__'])
except Exception:
raise
return sls_list_state
class SaltCheck(object):
'''
This class implements the saltcheck
'''
def __init__(self):
# self.sls_list_top = []
self.sls_list_state = []
self.modules = []
self.results_dict = {}
self.results_dict_summary = {}
self.assertions_list = '''assertEqual assertNotEqual
assertTrue assertFalse
assertIn assertNotIn
assertGreater
assertGreaterEqual
assertLess assertLessEqual'''.split()
self.auto_update_master_cache = _get_auto_update_cache_value
# self.salt_lc = salt.client.Caller(mopts=__opts__)
self.salt_lc = salt.client.Caller()
if self.auto_update_master_cache:
update_master_cache()
def __is_valid_test(self, test_dict):
'''
Determine if a test contains:
- a test name
- a valid module and function
- a valid assertion
- an expected return value
'''
tots = 0 # need total of >= 6 to be a valid test
m_and_f = test_dict.get('module_and_function', None)
assertion = test_dict.get('assertion', None)
expected_return = test_dict.get('expected-return', None)
log.info("__is_valid_test has test: %s", test_dict)
if m_and_f:
tots += 1
module, function = m_and_f.split('.')
if _is_valid_module(module):
tots += 1
if _is_valid_function(module, function):
tots += 1
log.info("__is_valid_test has valid m_and_f")
if assertion:
tots += 1
if assertion in self.assertions_list:
tots += 1
log.info("__is_valid_test has valid_assertion")
if expected_return:
tots += 1
log.info("__is_valid_test has valid_expected_return")
log.info("__is_valid_test score: %s", tots)
return tots >= 6
def call_salt_command(self,
fun,
args,
kwargs):
'''
Generic call of salt Caller command
'''
value = False
try:
if args and kwargs:
value = self.salt_lc.cmd(fun, *args, **kwargs)
elif args and not kwargs:
value = self.salt_lc.cmd(fun, *args)
elif not args and kwargs:
value = self.salt_lc.cmd(fun, **kwargs)
else:
value = self.salt_lc.cmd(fun)
except salt.exceptions.SaltException:
raise
except Exception:
raise
return value
def run_test(self, test_dict):
'''
Run a single saltcheck test
'''
if self.__is_valid_test(test_dict):
mod_and_func = test_dict['module_and_function']
args = test_dict.get('args', None)
kwargs = test_dict.get('kwargs', None)
assertion = test_dict['assertion']
expected_return = test_dict['expected-return']
actual_return = self.call_salt_command(mod_and_func, args, kwargs)
if assertion != "assertIn":
expected_return = self.cast_expected_to_returned_type(expected_return, actual_return)
if assertion == "assertEqual":
value = self.__assert_equal(expected_return, actual_return)
elif assertion == "assertNotEqual":
value = self.__assert_not_equal(expected_return, actual_return)
elif assertion == "assertTrue":
value = self.__assert_true(expected_return)
elif assertion == "assertFalse":
value = self.__assert_false(expected_return)
elif assertion == "assertIn":
value = self.__assert_in(expected_return, actual_return)
elif assertion == "assertNotIn":
value = self.__assert_not_in(expected_return, actual_return)
elif assertion == "assertGreater":
value = self.__assert_greater(expected_return, actual_return)
elif assertion == "assertGreaterEqual":
value = self.__assert_greater_equal(expected_return, actual_return)
elif assertion == "assertLess":
value = self.__assert_less(expected_return, actual_return)
elif assertion == "assertLessEqual":
value = self.__assert_less_equal(expected_return, actual_return)
else:
value = "Fail - bas assertion"
else:
return "Fail - invalid test"
return value
@staticmethod
def cast_expected_to_returned_type(expected, returned):
'''
Determine the type of variable returned
Cast the expected to the type of variable returned
'''
ret_type = type(returned)
new_expected = expected
if expected == "False" and ret_type == bool:
expected = False
try:
new_expected = ret_type(expected)
except ValueError:
log.info("Unable to cast expected into type of returned")
log.info("returned = %s", returned)
log.info("type of returned = %s", type(returned))
log.info("expected = %s", expected)
log.info("type of expected = %s", type(expected))
return new_expected
@staticmethod
def __assert_equal(expected, returned):
'''
Test if two objects are equal
'''
result = "Pass"
try:
assert (expected == returned), "{0} is not equal to {1}".format(expected, returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_not_equal(expected, returned):
'''
Test if two objects are not equal
'''
result = "Pass"
try:
assert (expected != returned), "{0} is equal to {1}".format(expected, returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_true(returned):
'''
Test if an boolean is True
'''
result = "Pass"
try:
assert (returned is True), "{0} not True".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_false(returned):
'''
Test if an boolean is False
'''
result = "Pass"
if isinstance(returned, str):
try:
returned = bool(returned)
except ValueError:
raise
try:
assert (returned is False), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_in(expected, returned):
'''
Test if a value is in the list of returned values
'''
result = "Pass"
try:
assert (expected in returned), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_not_in(expected, returned):
'''
Test if a value is not in the list of returned values
'''
result = "Pass"
try:
assert (expected not in returned), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_greater(expected, returned):
'''
Test if a value is greater than the returned value
'''
result = "Pass"
try:
assert (expected > returned), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_greater_equal(expected, returned):
'''
Test if a value is greater than or equal to the returned value
'''
result = "Pass"
try:
assert (expected >= returned), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_less(expected, returned):
'''
Test if a value is less than the returned value
'''
result = "Pass"
try:
assert (expected < returned), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def __assert_less_equal(expected, returned):
'''
Test if a value is less than or equal to the returned value
'''
result = "Pass"
try:
assert (expected <= returned), "{0} not False".format(returned)
except AssertionError as err:
result = "Fail: " + six.text_type(err)
return result
@staticmethod
def get_state_search_path_list():
'''
For the state file system, return a list of paths to search for states
'''
# state cache should be updated before running this method
search_list = []
cachedir = __opts__.get('cachedir', None)
environment = __opts__['saltenv']
if environment:
path = cachedir + os.sep + "files" + os.sep + environment
search_list.append(path)
path = cachedir + os.sep + "files" + os.sep + "base"
search_list.append(path)
return search_list
class StateTestLoader(object):
'''
Class loads in test files for a state
e.g. state_dir/saltcheck-tests/[1.tst, 2.tst, 3.tst]
'''
def __init__(self, search_paths):
self.search_paths = search_paths
self.path_type = None
self.test_files = [] # list of file paths
self.test_dict = {}
def load_test_suite(self):
'''
Load tests either from one file, or a set of files
'''
self.test_dict = {}
for myfile in self.test_files:
# self.load_file(myfile)
self.load_file_salt_rendered(myfile)
self.test_files = []
def load_file(self, filepath):
'''
loads in one test file
'''
try:
with __utils__['files.fopen'](filepath, 'r') as myfile:
# with salt.utils.files.fopen(filepath, 'r') as myfile:
# with open(filepath, 'r') as myfile:
contents_yaml = salt.utils.data.decode(salt.utils.yaml.safe_load(myfile))
for key, value in contents_yaml.items():
self.test_dict[key] = value
except:
raise
return
def load_file_salt_rendered(self, filepath):
'''
loads in one test file
'''
# use the salt renderer module to interpret jinja and etc
tests = _render_file(filepath)
# use json as a convenient way to convert the OrderedDicts from salt renderer
mydict = loads(dumps(tests))
for key, value in mydict.items():
self.test_dict[key] = value
return
def gather_files(self, filepath):
'''
Gather files for a test suite
'''
self.test_files = []
log.info("gather_files: %s", time.time())
filepath = filepath + os.sep + 'saltcheck-tests'
rootdir = filepath
# for dirname, subdirlist, filelist in salt.utils.path.os_walk(rootdir):
for dirname, dummy, filelist in salt.utils.path.os_walk(rootdir):
for fname in filelist:
if fname.endswith('.tst'):
start_path = dirname + os.sep + fname
full_path = os.path.abspath(start_path)
self.test_files.append(full_path)
return
@staticmethod
def convert_sls_to_paths(sls_list):
'''
Converting sls to paths
'''
new_sls_list = []
for sls in sls_list:
sls = sls.replace(".", os.sep)
new_sls_list.append(sls)
return new_sls_list
@staticmethod
def convert_sls_to_path(sls):
'''
Converting sls to paths
'''
sls = sls.replace(".", os.sep)
return sls
def add_test_files_for_sls(self, sls_path):
'''
Adding test files
'''
for path in self.search_paths:
full_path = path + os.sep + sls_path
rootdir = full_path
if os.path.isdir(full_path):
log.info("searching path= %s", full_path)
# for dirname, subdirlist, filelist in salt.utils.path.os_walk(rootdir, topdown=True):
for dirname, subdirlist, dummy in salt.utils.path.os_walk(rootdir, topdown=True):
if "saltcheck-tests" in subdirlist:
self.gather_files(dirname)
log.info("test_files list: %s", self.test_files)
log.info("found subdir match in = %s", dirname)
else:
log.info("did not find subdir match in = %s", dirname)
del subdirlist[:]
else:
log.info("path is not a directory= %s", full_path)
return
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