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#!/usr/bin/env python
import grp
import os
import pwd
import unittest
import jujubigdata
class TestDistConfig(unittest.TestCase):
"""
Test that the ``dist.yaml`` settings were applied properly, such as users, groups, and dirs.
This is done as a remote test on the deployed unit rather than a regular
test under ``tests/`` because filling in the ``dist.yaml`` requires Juju
context (e.g., config).
"""
@classmethod
def setUpClass(cls):
config = None
config_dir = os.environ['JUJU_CHARM_DIR']
config_file = 'dist.yaml'
if os.path.isfile(os.path.join(config_dir, config_file)):
config = os.path.join(config_dir, config_file)
if not config:
raise IOError('Could not find {} in {}'.format(config_file, config_dir))
reqs = ['vendor', 'hadoop_version', 'groups', 'users', 'dirs']
cls.dist_config = jujubigdata.utils.DistConfig(config, reqs)
def test_groups(self):
for name in self.dist_config.groups:
try:
grp.getgrnam(name)
except KeyError:
self.fail('Group {} is missing'.format(name))
def test_users(self):
for username, details in self.dist_config.users.items():
try:
user = pwd.getpwnam(username)
except KeyError:
self.fail('User {} is missing'.format(username))
for groupname in details['groups']:
try:
group = grp.getgrnam(groupname)
except KeyError:
self.fail('Group {} referenced by user {} does not exist'.format(
groupname, username))
if group.gr_gid != user.pw_gid:
self.assertIn(username, group.gr_mem, 'User {} not in group {}'.format(
username, groupname))
def test_dirs(self):
for name, details in self.dist_config.dirs.items():
dirpath = self.dist_config.path(name)
self.assertTrue(dirpath.isdir(), 'Dir {} is missing'.format(name))
stat = dirpath.stat()
owner = pwd.getpwuid(stat.st_uid).pw_name
group = grp.getgrgid(stat.st_gid).gr_name
perms = stat.st_mode & ~0o40000
self.assertEqual(owner, details.get('owner', 'root'),
'Dir {} ({}) has wrong owner: {}'.format(name, dirpath, owner))
self.assertEqual(group, details.get('group', 'root'),
'Dir {} ({}) has wrong group: {}'.format(name, dirpath, group))
self.assertEqual(perms, details.get('perms', 0o755),
'Dir {} ({}) has wrong perms: 0o{:o}'.format(name, dirpath, perms))
if __name__ == '__main__':
unittest.main()
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