Integration Testing: tox env, pyxld 2.2.3, and revamp framework

Massive update to clean up and greatly enhance the integration testing
framework developed by Wesley Wiedenmeier.

 - Updated tox environment to run integration test 'citest' to utilize
   pylxd 2.2.3
 - Add support for distro feature flags
   - add framework for feature flags to release config with feature groups
     and overrides allowed in any release conf override level
   - add support for feature flags in platform and config handling
   - during collect, skip testcases that require features not supported by
     the image with a warning message
 - Enable additional distros (i.e. centos, debian)
 - Add 'bddeb' command to build a deb from the current working tree
   cleanly in a container, so deps do not have to be installed on host
 - Adds a command line option '--preserve-data' that ensures that
   collected data will be left after tests run. This also allows the
   directory to store collected data in during the run command to be
   specified using '--data-dir'.
 - Updated Read the Docs testing page and doc strings for pep 257
   compliance

1 files changed, 8 insertions, 8 deletions

diff --git a/tests/cloud_tests/testcases/modules/user_groups.py b/tests/cloud_tests/testcases/modules/user_groups.py
index e5732322..67af527b 100644
--- a/tests/cloud_tests/testcases/modules/user_groups.py
+++ b/tests/cloud_tests/testcases/modules/user_groups.py
@@ -1,42 +1,42 @@
 # This file is part of cloud-init. See LICENSE file for license information.
 
-"""cloud-init Integration Test Verify Script"""
+"""cloud-init Integration Test Verify Script."""
 from tests.cloud_tests.testcases import base
 
 
 class TestUserGroups(base.CloudTestCase):
-    """Example cloud-config test"""
+    """Example cloud-config test."""
 
     def test_group_ubuntu(self):
-        """Test ubuntu group exists"""
+        """Test ubuntu group exists."""
         out = self.get_data_file('group_ubuntu')
         self.assertRegex(out, r'ubuntu:x:[0-9]{4}:')
 
     def test_group_cloud_users(self):
-        """Test cloud users group exists"""
+        """Test cloud users group exists."""
         out = self.get_data_file('group_cloud_users')
         self.assertRegex(out, r'cloud-users:x:[0-9]{4}:barfoo')
 
     def test_user_ubuntu(self):
-        """Test ubuntu user exists"""
+        """Test ubuntu user exists."""
         out = self.get_data_file('user_ubuntu')
         self.assertRegex(
             out, r'ubuntu:x:[0-9]{4}:[0-9]{4}:Ubuntu:/home/ubuntu:/bin/bash')
 
     def test_user_foobar(self):
-        """Test foobar user exists"""
+        """Test foobar user exists."""
         out = self.get_data_file('user_foobar')
         self.assertRegex(
             out, r'foobar:x:[0-9]{4}:[0-9]{4}:Foo B. Bar:/home/foobar:')
 
     def test_user_barfoo(self):
-        """Test barfoo user exists"""
+        """Test barfoo user exists."""
         out = self.get_data_file('user_barfoo')
         self.assertRegex(
             out, r'barfoo:x:[0-9]{4}:[0-9]{4}:Bar B. Foo:/home/barfoo:')
 
     def test_user_cloudy(self):
-        """Test cloudy user exists"""
+        """Test cloudy user exists."""
         out = self.get_data_file('user_cloudy')
         self.assertRegex(out, r'cloudy:x:[0-9]{3,4}:')