TypeError caused by not giving MuranoDeploymentSmokeTests, MuranoSanityTests instances as args of setUpClassError 502 is received while creating volume in ostf test on iso 3.2.1

[Anastasiia Naboikina]

Steps to reproduce:
1. Create new environment on ISO 3.2.1 with newest Grizzly OpenStack version.
2. Create new cluster with the following configuration:
   - simple Ubuntu
   - ceph for Volumes
   - Nova Network with VLAN
   - Savanna
   - Murano
3. Add the following nodes:
   - 1 controller + ceph osd
   - 1 compute + ceph osd
4. Deploy cluster.
5. Run OSTF HealthCheck.
6. Observe logs.

Expected result:
OSTF tests pass except the ones that require Savanna image.

Acutal result:
Some of the tests are not executed at all. There are traceback errors in log:
(nose_storage_plugin) <nose.suite.ContextSuite context=MuranoSanityTests>:setup
Traceback (most recent call last):
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/suite.py", line 208, in run
    self.setUp()
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/suite.py", line 291, in setUp
    self.setupContext(ancestor)
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/suite.py", line 314, in setupContext
    try_run(context, names)
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/util.py", line 469, in try_run
    return func()
TypeError: unbound method setUpClass() must be called with MuranoSanityTests instance as first argument (got nothing instead)

fuel_plugin.ostf_adapter.nose_plugin.nose_storage_plugin: ERROR: <nose.suite.ContextSuite context=MuranoDeploymentSmokeTests>:setup
Traceback (most recent call last):
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/suite.py", line 208, in run
    self.setUp()
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/suite.py", line 291, in setUp
    self.setupContext(ancestor)
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/suite.py", line 314, in setupContext
    try_run(context, names)
  File "/opt/fuel_plugins/ostf/lib/python2.6/site-packages/nose/util.py", line 469, in try_run
    return func()
TypeError: unbound method setUpClass() must be called with MuranoDeploymentSmokeTests instance as first argument (got nothing instead)

[Timur Nurlygayanov (tnurlygayanov)]

Fixed in https://review.openstack.org/#/c/55566/