mirror of
https://github.com/valitydev/salt.git
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617 lines
20 KiB
Python
617 lines
20 KiB
Python
# -*- coding: utf-8 -*-
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'''
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unit.loader
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Test Salt's loader
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'''
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# Import Python libs
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from __future__ import absolute_import
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import inspect
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import tempfile
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import shutil
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import os
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import collections
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# Import Salt Testing libs
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from salttesting import TestCase
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from salttesting.helpers import ensure_in_syspath
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ensure_in_syspath('../../')
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import integration # pylint: disable=import-error
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# Import Salt libs
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# pylint: disable=import-error,no-name-in-module,redefined-builtin
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import salt.ext.six as six
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from salt.ext.six.moves import range
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from salt.config import minion_config
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# pylint: enable=no-name-in-module,redefined-builtin
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from salt.loader import LazyLoader, _module_dirs, grains
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class LazyLoaderVirtualEnabledTest(TestCase):
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'''
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Test the base loader of salt.
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'''
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def setUp(self):
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self.opts = minion_config(None)
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self.opts['disable_modules'] = ['pillar']
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self.opts['grains'] = grains(self.opts)
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self.loader = LazyLoader(_module_dirs(self.opts, 'modules', 'module'),
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self.opts,
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tag='module')
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def test_basic(self):
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'''
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Ensure that it only loads stuff when needed
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'''
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# make sure it starts empty
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self.assertEqual(self.loader._dict, {})
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# get something, and make sure its a func
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self.assertTrue(inspect.isfunction(self.loader['test.ping']))
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# make sure we only loaded "test" functions
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for key, val in six.iteritems(self.loader._dict):
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self.assertEqual(key.split('.', 1)[0], 'test')
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# make sure the depends thing worked (double check of the depends testing,
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# since the loader does the calling magically
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self.assertFalse('test.missing_func' in self.loader._dict)
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def test_badkey(self):
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with self.assertRaises(KeyError):
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self.loader[None] # pylint: disable=W0104
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with self.assertRaises(KeyError):
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self.loader[1] # pylint: disable=W0104
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def test_disable(self):
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self.assertNotIn('pillar.items', self.loader)
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def test_len_load(self):
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'''
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Since LazyLoader is a MutableMapping, if someone asks for len() we have
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to load all
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'''
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self.assertEqual(self.loader._dict, {})
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len(self.loader) # force a load all
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self.assertNotEqual(self.loader._dict, {})
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def test_iter_load(self):
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'''
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Since LazyLoader is a MutableMapping, if someone asks to iterate we have
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to load all
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'''
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self.assertEqual(self.loader._dict, {})
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# force a load all
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for key, func in six.iteritems(self.loader):
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break
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self.assertNotEqual(self.loader._dict, {})
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def test_context(self):
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'''
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Make sure context is shared across modules
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'''
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# make sure it starts empty
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self.assertEqual(self.loader._dict, {})
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# get something, and make sure its a func
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func = self.loader['test.ping']
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func.__globals__['__context__']['foo'] = 'bar'
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self.assertEqual(self.loader['test.echo'].__globals__['__context__']['foo'], 'bar')
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self.assertEqual(self.loader['grains.get'].__globals__['__context__']['foo'], 'bar')
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def test_globals(self):
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func_globals = self.loader['test.ping'].__globals__
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self.assertEqual(func_globals['__grains__'], self.opts.get('grains', {}))
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self.assertEqual(func_globals['__pillar__'], self.opts.get('pillar', {}))
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# the opts passed into modules is at least a subset of the whole opts
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for key, val in six.iteritems(func_globals['__opts__']):
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self.assertEqual(self.opts[key], val)
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def test_pack(self):
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self.loader.pack['__foo__'] = 'bar'
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func_globals = self.loader['test.ping'].__globals__
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self.assertEqual(func_globals['__foo__'], 'bar')
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def test_virtual(self):
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self.assertNotIn('test_virtual.ping', self.loader)
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class LazyLoaderVirtualDisabledTest(TestCase):
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'''
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Test the loader of salt without __virtual__
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'''
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def setUp(self):
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self.opts = _config = minion_config(None)
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self.opts['grains'] = grains(self.opts)
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self.loader = LazyLoader(_module_dirs(self.opts, 'modules', 'module'),
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self.opts,
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tag='module',
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virtual_enable=False)
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def test_virtual(self):
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self.assertTrue(inspect.isfunction(self.loader['test_virtual.ping']))
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class LazyLoaderWhitelistTest(TestCase):
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'''
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Test the loader of salt with a whitelist
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'''
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def setUp(self):
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self.opts = _config = minion_config(None)
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self.loader = LazyLoader(_module_dirs(self.opts, 'modules', 'module'),
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self.opts,
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tag='module',
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whitelist=['test', 'pillar'])
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def test_whitelist(self):
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self.assertTrue(inspect.isfunction(self.loader['test.ping']))
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self.assertTrue(inspect.isfunction(self.loader['pillar.get']))
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self.assertNotIn('grains.get', self.loader)
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module_template = '''
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__load__ = ['test', 'test_alias']
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__func_alias__ = dict(test_alias='working_alias')
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from salt.utils.decorators import depends
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def test():
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return {count}
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def test_alias():
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return True
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def test2():
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return True
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@depends('non_existantmodulename')
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def test3():
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return True
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@depends('non_existantmodulename', fallback_function=test)
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def test4():
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return True
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'''
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class LazyLoaderReloadingTest(TestCase):
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'''
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Test the loader of salt with changing modules
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'''
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module_name = 'loadertest'
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module_key = 'loadertest.test'
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def setUp(self):
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self.opts = _config = minion_config(None)
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self.opts['grains'] = grains(self.opts)
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self.tmp_dir = tempfile.mkdtemp(dir=integration.TMP)
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self.count = 0
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dirs = _module_dirs(self.opts, 'modules', 'module')
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dirs.append(self.tmp_dir)
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self.loader = LazyLoader(dirs,
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self.opts,
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tag='module')
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def tearDown(self):
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shutil.rmtree(self.tmp_dir)
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def update_module(self):
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self.count += 1
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with open(self.module_path, 'wb') as fh:
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fh.write(module_template.format(count=self.count))
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fh.flush()
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os.fsync(fh.fileno()) # flush to disk
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# pyc files don't like it when we change the original quickly
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# since the header bytes only contain the timestamp (granularity of seconds)
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# TODO: don't write them? Is *much* slower on re-load (~3x)
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# https://docs.python.org/2/library/sys.html#sys.dont_write_bytecode
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try:
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os.unlink(self.module_path + 'c')
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except OSError:
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pass
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def rm_module(self):
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os.unlink(self.module_path)
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os.unlink(self.module_path + 'c')
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@property
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def module_path(self):
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return os.path.join(self.tmp_dir, '{0}.py'.format(self.module_name))
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def test_alias(self):
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'''
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Make sure that you can access alias-d modules
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'''
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# ensure it doesn't exist
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self.assertNotIn(self.module_key, self.loader)
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self.update_module()
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self.assertNotIn('{0}.test_alias'.format(self.module_name), self.loader)
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self.assertTrue(inspect.isfunction(self.loader['{0}.working_alias'.format(self.module_name)]))
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def test_clear(self):
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self.assertTrue(inspect.isfunction(self.loader['test.ping']))
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self.update_module() # write out out custom module
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self.loader.clear() # clear the loader dict
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# force a load of our module
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self.assertTrue(inspect.isfunction(self.loader[self.module_key]))
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# make sure we only loaded our custom module
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# which means that we did correctly refresh the file mapping
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for k, v in six.iteritems(self.loader._dict):
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self.assertTrue(k.startswith(self.module_name))
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def test_load(self):
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# ensure it doesn't exist
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self.assertNotIn(self.module_key, self.loader)
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self.update_module()
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self.assertTrue(inspect.isfunction(self.loader[self.module_key]))
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def test__load__(self):
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'''
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If a module specifies __load__ we should only load/expose those modules
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'''
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self.update_module()
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# ensure it doesn't exist
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self.assertNotIn(self.module_key + '2', self.loader)
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def test__load__and_depends(self):
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'''
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If a module specifies __load__ we should only load/expose those modules
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'''
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self.update_module()
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# ensure it doesn't exist
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self.assertNotIn(self.module_key + '3', self.loader)
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self.assertNotIn(self.module_key + '4', self.loader)
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def test_reload(self):
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# ensure it doesn't exist
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self.assertNotIn(self.module_key, self.loader)
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# make sure it updates correctly
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for x in range(1, 3):
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self.update_module()
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self.loader.clear()
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self.assertEqual(self.loader[self.module_key](), self.count)
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self.rm_module()
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# make sure that even if we remove the module, its still loaded until a clear
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self.assertEqual(self.loader[self.module_key](), self.count)
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self.loader.clear()
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self.assertNotIn(self.module_key, self.loader)
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submodule_template = '''
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import lib
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def test():
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return ({count}, lib.test())
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'''
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submodule_lib_template = '''
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def test():
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return {count}
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'''
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class LazyLoaderSubmodReloadingTest(TestCase):
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'''
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Test the loader of salt with changing modules
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'''
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module_name = 'loadertestsubmod'
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module_key = 'loadertestsubmod.test'
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def setUp(self):
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self.opts = _config = minion_config(None)
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self.opts['grains'] = grains(self.opts)
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self.tmp_dir = tempfile.mkdtemp(dir=integration.TMP)
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os.makedirs(self.module_dir)
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self.count = 0
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self.lib_count = 0
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dirs = _module_dirs(self.opts, 'modules', 'module')
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dirs.append(self.tmp_dir)
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self.loader = LazyLoader(dirs,
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self.opts,
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tag='module')
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def tearDown(self):
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shutil.rmtree(self.tmp_dir)
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def update_module(self):
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self.count += 1
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with open(self.module_path, 'wb') as fh:
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fh.write(submodule_template.format(count=self.count))
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fh.flush()
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os.fsync(fh.fileno()) # flush to disk
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# pyc files don't like it when we change the original quickly
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# since the header bytes only contain the timestamp (granularity of seconds)
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# TODO: don't write them? Is *much* slower on re-load (~3x)
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# https://docs.python.org/2/library/sys.html#sys.dont_write_bytecode
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try:
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os.unlink(self.module_path + 'c')
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except OSError:
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pass
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def rm_module(self):
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os.unlink(self.module_path)
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os.unlink(self.module_path + 'c')
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def update_lib(self):
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self.lib_count += 1
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with open(self.lib_path, 'wb') as fh:
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fh.write(submodule_lib_template.format(count=self.lib_count))
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fh.flush()
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os.fsync(fh.fileno()) # flush to disk
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# pyc files don't like it when we change the original quickly
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# since the header bytes only contain the timestamp (granularity of seconds)
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# TODO: don't write them? Is *much* slower on re-load (~3x)
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# https://docs.python.org/2/library/sys.html#sys.dont_write_bytecode
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try:
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os.unlink(self.lib_path + 'c')
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except OSError:
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pass
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def rm_lib(self):
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os.unlink(self.lib_path)
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os.unlink(self.lib_path + 'c')
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@property
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def module_dir(self):
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return os.path.join(self.tmp_dir, self.module_name)
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@property
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def module_path(self):
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return os.path.join(self.module_dir, '__init__.py')
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@property
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def lib_path(self):
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return os.path.join(self.module_dir, 'lib.py')
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def test_basic(self):
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# ensure it doesn't exist
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self.assertNotIn(self.module_key, self.loader)
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self.update_module()
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self.update_lib()
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self.loader.clear()
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self.assertIn(self.module_key, self.loader)
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def test_reload(self):
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# ensure it doesn't exist
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self.assertNotIn(self.module_key, self.loader)
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# update both the module and the lib
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for x in range(1, 3):
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self.update_module()
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self.update_lib()
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self.loader.clear()
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self.assertEqual(self.loader[self.module_key](), (self.count, self.lib_count))
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# update just the module
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for x in range(1, 3):
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self.update_module()
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self.loader.clear()
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self.assertEqual(self.loader[self.module_key](), (self.count, self.lib_count))
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# update just the lib
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for x in range(1, 3):
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self.update_lib()
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self.loader.clear()
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self.assertEqual(self.loader[self.module_key](), (self.count, self.lib_count))
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self.rm_module()
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# make sure that even if we remove the module, its still loaded until a clear
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self.assertEqual(self.loader[self.module_key](), (self.count, self.lib_count))
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self.loader.clear()
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self.assertNotIn(self.module_key, self.loader)
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def test_reload_missing_lib(self):
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# ensure it doesn't exist
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self.assertNotIn(self.module_key, self.loader)
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# update both the module and the lib
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self.update_module()
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self.update_lib()
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self.loader.clear()
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self.assertEqual(self.loader[self.module_key](), (self.count, self.lib_count))
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# remove the lib, this means we should fail to load the module next time
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self.rm_lib()
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self.loader.clear()
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self.assertNotIn(self.module_key, self.loader)
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mod_template = '''
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def test():
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return ({val})
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'''
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class LazyLoaderModulePackageTest(TestCase):
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'''
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Test the loader of salt with changing modules
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'''
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module_name = 'loadertestmodpkg'
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module_key = 'loadertestmodpkg.test'
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def setUp(self):
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self.opts = _config = minion_config(None)
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self.opts['grains'] = grains(self.opts)
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self.tmp_dir = tempfile.mkdtemp(dir=integration.TMP)
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dirs = _module_dirs(self.opts, 'modules', 'module')
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dirs.append(self.tmp_dir)
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self.loader = LazyLoader(dirs,
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self.opts,
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tag='module')
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def tearDown(self):
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shutil.rmtree(self.tmp_dir)
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def update_pyfile(self, pyfile, contents):
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dirname = os.path.dirname(pyfile)
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if not os.path.exists(dirname):
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os.makedirs(dirname)
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with open(pyfile, 'wb') as fh:
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fh.write(contents)
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fh.flush()
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os.fsync(fh.fileno()) # flush to disk
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# pyc files don't like it when we change the original quickly
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# since the header bytes only contain the timestamp (granularity of seconds)
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# TODO: don't write them? Is *much* slower on re-load (~3x)
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# https://docs.python.org/2/library/sys.html#sys.dont_write_bytecode
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try:
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os.unlink(pyfile + 'c')
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except OSError:
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pass
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def rm_pyfile(self, pyfile):
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os.unlink(pyfile)
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os.unlink(pyfile + 'c')
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def update_module(self, relative_path, contents):
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self.update_pyfile(os.path.join(self.tmp_dir, relative_path), contents)
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def rm_module(self, relative_path):
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self.rm_pyfile(os.path.join(self.tmp_dir, relative_path))
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def test_module(self):
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# ensure it doesn't exist
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self.assertNotIn('foo', self.loader)
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self.assertNotIn('foo.test', self.loader)
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self.update_module('foo.py', mod_template.format(val=1))
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self.loader.clear()
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self.assertIn('foo.test', self.loader)
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self.assertEqual(self.loader['foo.test'](), 1)
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def test_package(self):
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# ensure it doesn't exist
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self.assertNotIn('foo', self.loader)
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self.assertNotIn('foo.test', self.loader)
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self.update_module('foo/__init__.py', mod_template.format(val=2))
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self.loader.clear()
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self.assertIn('foo.test', self.loader)
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self.assertEqual(self.loader['foo.test'](), 2)
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def test_module_package_collision(self):
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# ensure it doesn't exist
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self.assertNotIn('foo', self.loader)
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self.assertNotIn('foo.test', self.loader)
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self.update_module('foo.py', mod_template.format(val=3))
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self.loader.clear()
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self.assertIn('foo.test', self.loader)
|
|
self.assertEqual(self.loader['foo.test'](), 3)
|
|
|
|
self.update_module('foo/__init__.py', mod_template.format(val=4))
|
|
self.loader.clear()
|
|
self.assertIn('foo.test', self.loader)
|
|
self.assertEqual(self.loader['foo.test'](), 4)
|
|
|
|
|
|
deep_init_base = '''
|
|
import top_lib
|
|
import top_lib.mid_lib
|
|
import top_lib.mid_lib.bot_lib
|
|
|
|
def top():
|
|
return top_lib.test()
|
|
|
|
def mid():
|
|
return top_lib.mid_lib.test()
|
|
|
|
def bot():
|
|
return top_lib.mid_lib.bot_lib.test()
|
|
'''
|
|
|
|
|
|
class LazyLoaderDeepSubmodReloadingTest(TestCase):
|
|
module_name = 'loadertestsubmoddeep'
|
|
libs = ('top_lib', 'mid_lib', 'bot_lib')
|
|
|
|
def setUp(self):
|
|
self.opts = _config = minion_config(None)
|
|
self.tmp_dir = tempfile.mkdtemp(dir=integration.TMP)
|
|
os.makedirs(self.module_dir)
|
|
|
|
self.lib_count = collections.defaultdict(int) # mapping of path -> count
|
|
|
|
# bootstrap libs
|
|
with open(os.path.join(self.module_dir, '__init__.py'), 'w') as fh:
|
|
fh.write(deep_init_base)
|
|
fh.flush()
|
|
os.fsync(fh.fileno()) # flush to disk
|
|
|
|
self.lib_paths = {}
|
|
dir_path = self.module_dir
|
|
for lib_name in self.libs:
|
|
dir_path = os.path.join(dir_path, lib_name)
|
|
self.lib_paths[lib_name] = dir_path
|
|
os.makedirs(dir_path)
|
|
self.update_lib(lib_name)
|
|
|
|
dirs = _module_dirs(self.opts, 'modules', 'module')
|
|
dirs.append(self.tmp_dir)
|
|
self.loader = LazyLoader(dirs,
|
|
self.opts,
|
|
tag='module')
|
|
|
|
@property
|
|
def module_dir(self):
|
|
return os.path.join(self.tmp_dir, self.module_name)
|
|
|
|
def update_lib(self, lib_name):
|
|
path = os.path.join(self.lib_paths[lib_name], '__init__.py')
|
|
self.lib_count[lib_name] += 1
|
|
with open(path, 'wb') as fh:
|
|
fh.write(submodule_lib_template.format(count=self.lib_count[lib_name]))
|
|
fh.flush()
|
|
os.fsync(fh.fileno()) # flush to disk
|
|
|
|
# pyc files don't like it when we change the original quickly
|
|
# since the header bytes only contain the timestamp (granularity of seconds)
|
|
# TODO: don't write them? Is *much* slower on re-load (~3x)
|
|
# https://docs.python.org/2/library/sys.html#sys.dont_write_bytecode
|
|
try:
|
|
os.unlink(path + 'c')
|
|
except OSError:
|
|
pass
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.tmp_dir)
|
|
|
|
def test_basic(self):
|
|
self.assertIn('{0}.top'.format(self.module_name), self.loader)
|
|
|
|
def _verify_libs(self):
|
|
for lib in self.libs:
|
|
self.assertEqual(self.loader['{0}.{1}'.format(self.module_name, lib.replace('_lib', ''))](),
|
|
self.lib_count[lib])
|
|
|
|
def test_reload(self):
|
|
'''
|
|
Make sure that we can reload all libraries of arbitrary depth
|
|
'''
|
|
self._verify_libs()
|
|
|
|
# update them all
|
|
for lib in self.libs:
|
|
for x in xrange(5):
|
|
self.update_lib(lib)
|
|
self.loader.clear()
|
|
self._verify_libs()
|