Move all the files of 'tests/functional/common/' dir
to the 'tests/functional/', because 'common' is the only
dir there, which doesn't really makes sense.
Do the same about 'tests/functional/common/heketi/heketi_tests'
and 'tests/functional/common/heketi/'.

Change-Id: I1fa55e2e7bf09e9b9115629b06e1fd160e291a36

Renamed cns_baseclass.py to baseclass.py with updated BaseClass.
Merged HeketiBaseClass to BaseClass with appropriate changes.
Updated delete_volumes and delete_block_volumes methods used in
test case method with heketi_delete_volume and heketi_blockvolume-
delete.

Change-Id: I8f623f1692cd863dc8ff041f7e8525ee0dc84f7b
Signed-off-by: vamahaja <vamahaja@redhat.com>

Add Heketi version checks to the test cases and Heketi libraries.
In case of incompatible Heketi version in a setup,
test cases will be skipped and direct usage of Heketi libraries
will cause them to raise the NotImplementedError exceptions.

Change-Id: I462e76f615165140f2a8c7e796c1c582b8f4dc91

Change-Id: I9ab3c6bea56a02f76ce818ee095ffe4afc0e64c0
Signed-off-by: vamahaja <vamahaja@redhat.com>

Trying to create pvc with defined arbiter file size and
verifying that when we are expanding volume it is expanding
according to avg file size

Change-Id: I5c39339f70702bf685c237ae16e21f54384e51db

This test case talks to the Gluster PODs directly. It is not
compatible with Standalone Gluster clusters.
So, fix this test by reusing special common function,
which allows us to abstract from Gluster cluster deployment type.

Change-Id: Ib131984ac0a4623d1d847f9961be26da573d8513

Doing following:
- Rename top-level config option group called 'cns' to the 'openshift'.
- Rename 'cns.setup.cns_project_name' option to the
  'openshift.storage_project_name'.
- Rename 'scale' option to the 'openshift.scale'.
- Delete ''devices' and 'zone' options from 'gluster_servers' config
  group.
- Delete 'cns.setup.cnd_username' option as unneeded.
- Delete 'cns.setup.cnd_password' option as unneeded.
- Delete 'oc_login' common function as unneeded after deletion of
  'cns.setup.cnd_username' and 'cns.setup.cnd_password' options.
- Remove 'Cns' word from base classes.
- Keep backwards compatibility for old options to make transition be
  smooth.

Change-Id: I04ddbbad5f64ffeac79a6744480d33a263d63001

The function name was confusing because now we are verifying
functionality of node tags and device tags. So changing the name

Change-Id: I00a2a12cc8b74e5bf9b76018698738550ea0c613

this test case is verifying that arbiter pvc expand is working
properly when tags are set on nodes and devices

Change-Id: I7118e5dd94856e36cdfa438f159a39604c50e7c0

this test case is verifying that arbiter pvc expand is working
properly

Change-Id: I52c52c9f299ef53c6c8618677d4f3425b5ba2051