[Test] Validate custom-xlator framework

[leelavg]

Steps:

• Perform minimal IO on the mount
• Enable custom xlator and verify xlator position in the volfile
• After performing any operation on the custom xlator set options using 'storage.reserve' to validate other xlators aren't effected
• Add brick to the volume and verify the xlator position in volfile in the new brick
• Replace brick and verify the xlator position in new brick volfile
• Verify debug xlator is reflected correctly in the volfile when set
• Validate unexisting xlator position should fail
• Reset the volume and verify all the options set above are reset

Change-Id: I5e9dad797fe187b3b9bcdd7374635779c97c5f25 Signed-off-by: Leela Venkaiah G lgangava@redhat.com

[leelavg]

please review @itisravi @srijan-sivakumar

[leelavg]

Local testing:

# pyc tests/functional/glusterd/test_custom_xlator.py                                                    

           Sorting imports by 'isort'
/root/toolbox/venv/gpy3/lib/python3.8/site-packages/setuptools/distutils_patch.py:25: UserWarning: Distutils was imported before Setuptools. This usage is discouraged and may exhibit undesirable behaviors or errors. Please use Setuptools' objects directly or at least import Setuptools first.
  warnings.warn(

           Running through 'yapf'

           Remove unused vars/imports by 'autoflake'

           Checking against 'flake8'

           Errors from 'pylint'

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

# On Centos8/RHEL8

tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed-replicated_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed-arbiter_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed-dispersed_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_arbiter_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_dispersed_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_replicated_glusterfs::test_custom_xlator_ops PASSED

============================= 7 passed, 3849 warnings in 1284.42s (0:21:24) =============================

# On Centos7/RHEL7

tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed-dispersed_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed-replicated_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_distributed-arbiter_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_replicated_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_dispersed_glusterfs::test_custom_xlator_ops PASSED
tests/functional/glusterd/test_custom_xlator.py::TestCustomXlator_cplex_arbiter_glusterfs::test_custom_xlator_ops PASSED

===================================== 7 passed in 1240.35 seconds ======================================