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, 5 insertions, 5 deletions

diff --git a/tests/cloud_tests/testcases/modules/lxd_bridge.py b/tests/cloud_tests/testcases/modules/lxd_bridge.py
index 4087e2f2..c0262ba3 100644
--- a/tests/cloud_tests/testcases/modules/lxd_bridge.py
+++ b/tests/cloud_tests/testcases/modules/lxd_bridge.py
@@ -1,24 +1,24 @@
 # 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 TestLxdBridge(base.CloudTestCase):
-    """Test LXD module"""
+    """Test LXD module."""
 
     def test_lxd(self):
-        """Test lxd installed"""
+        """Test lxd installed."""
         out = self.get_data_file('lxd')
         self.assertIn('/usr/bin/lxd', out)
 
     def test_lxc(self):
-        """Test lxc installed"""
+        """Test lxc installed."""
         out = self.get_data_file('lxc')
         self.assertIn('/usr/bin/lxc', out)
 
     def test_bridge(self):
-        """Test bridge config"""
+        """Test bridge config."""
         out = self.get_data_file('lxc-bridge')
         self.assertIn('lxdbr0', out)
         self.assertIn('10.100.100.1/24', out)