Python 3.6 is installed by default in Ubuntu 18.04 LTS.
Therefore, according to Transition Plan [1],
it'll be handy to have py36 testenv.

For more details, please check Python2 Deprecation Timeline [2]
and Python3-first Goal - Completion Criteria [3].

[1] https://wiki.ubuntu.com/Python/Python36Transition
[2] https://governance.openstack.org/tc/resolutions/20180529-python2-deprecation-timeline.html
[3] https://review.openstack.org/#/c/575933/8/goals/stein/python3-first.rst@42

Change-Id: Iae9e7269e4b70da56c3a8c025b6cc48566be0d0f

Change bionic test from dev to gate for 18.05.

Change-Id: I5e1214055d49a0ab170ad3ebc1c4fccca0eb7ebc

As of pip 10.0, --allow-unverified is not permitted.

Use of the flag in this repo was previously used to force
installation of python-apt to accommodate certain unit tests.

The unverified package, python-apt, is no longer necessary
for test execution.

Related-Bug: #1760720

Change-Id: I15a489755a94d0df0f2a6331410add716e56e091

Change-Id: I296f081e9de99da2fefe5a581dfc2ffe5fba4429

Make default func27-smoke xenial-pike
Charm-helpers sync

Change-Id: I0278a3c133c160f2543195c6a4c8a7c2735d13ac

- sync charmhelpers with fix-alpha helpers
- fix up code where the alpha comparisons are done
- fix tests which assumed mocks would just work on os_release()

Change-Id: I752198f807bc82f07f2a50e295c4d2936c3ad745
Related-Bug: #1659575

- Add Zesty as a supported series to metadata.yaml.
- Turn on Xenial-Ocata Amulet test definitions.
- Sync charm helpers to get Juju 2.x amulet compatibility.
- Keeping Zesty-Ocata Amulet test definitions turned off until the
  metadata.yaml changes propagate to the charm store.
- Resync tox.ini to resolve amulet test failures.

Change-Id: Ie85a1357f75d51af07c20028cd69f5cf9c0598f1

All OpenStack Charms now contain identical tox.ini files,
not to be modified or made unique within each charm repo.

This is to ensure consistency across charm repos in tox
target naming, approach and purpose, also giving the
charm dev and test experience additional consistency.

Also create empty dirs with .keep files where necessary.
Some classic charms have actions and/or lib dirs, and some
do not. In all classic charms, flake will now check those
dirs to ensure lint coverage of existing or future content.

Change-Id: I435049886d9e2e2bb47d4beeb4f4833a65ae72e4

Switch to using bundletester for execution of functional tests,
leveraging tox to build out test virtualenvs.

Rename amulet tests inline with gate-*, dev-* and dfs-*
naming standards.

Update README to refer to functional testing section of the charm
guide.

Change-Id: I649729447605b38a257c403dceb6c6a8dfe9f582

The new release of charm-tools no longer ships the charm
command; update minimum version requirement and switch
to using charm-proof instead, unblocking current pep8
failures across all charms.

Also pin the version of requests to 2.6.0 until theblues
(indirect dependency of charm-tools) sort out its
requirements versioning.

Change-Id: I12452beda5879dcc6f4cde922d640d0c987bb8c1