Enhance NFS mount option check for empty response

[DaanHoogland]

ERROR: test suite for <class 'tests.component.maint.test_primary_storage_nfsmountopts_kvm.TestNFSMountOptsKVM'>
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/nose/suite.py", line 210, in run
    self.setUp()
  File "/usr/local/lib/python3.9/site-packages/nose/suite.py", line 293, in setUp
    self.setupContext(ancestor)
  File "/usr/local/lib/python3.9/site-packages/nose/suite.py", line 316, in setupContext
    try_run(context, names)
  File "/usr/local/lib/python3.9/site-packages/nose/util.py", line 471, in try_run
    return func()
  File "/marvin/tests/component/maint/test_primary_storage_nfsmountopts_kvm.py", line 46, in setUpClass
    cls.version = cls.getNFSMountOptionForPool(cls, "vers", cls.storage_pool.id)
  File "/marvin/tests/component/maint/test_primary_storage_nfsmountopts_kvm.py", line 115, in getNFSMountOptionForPool
    stat = nfsstat[0]
IndexError: list index out of range

because

shClient: DEBUG: {Cmd: nfsstat -m | sed -n '/e08df33d-d187-3c1c-88f4-10c69669f41a/{ n; p }' via Host: 10.0.32.210} {returns: []}

Description

This PR fixes a component test error

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 17.54%. Comparing base (046014b) to head (f2f3f71).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #11839      +/-   ##
============================================
- Coverage     17.55%   17.54%   -0.01%     
- Complexity    15526    15548      +22     
============================================
  Files          5908     5908              
  Lines        528696   529921    +1225     
  Branches      64569    65087     +518     
============================================
+ Hits          92801    92974     +173     
- Misses       425457   426494    +1037     
- Partials      10438    10453      +15     

Flag	Coverage Δ
uitests	3.57% <ø> (-0.02%)	⬇️
unittests	18.61% <ø> (-0.01%)	⬇️

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[Copilot]

Pull Request Overview

This PR fixes an IndexError in the NFS mount options test by adding a length check for empty command output. The error occurred when the nfsstat -m command returned an empty list, causing an index out of range exception when trying to access nfsstat[0].

Key Changes:

• Enhanced the condition check to handle empty lists from SSH command execution
• Prevents IndexError when accessing the first element of an empty list

---

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[abh1sar]

LGTM

[abh1sar]

@blueorangutan package

[blueorangutan]

@abh1sar a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

[abh1sar]

Lots of clunky bits in this file. I'll raise a separate PR to improve the test later.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[blueorangutan]

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ el10 ✔️ debian ✔️ suse15. SL-JID 15464

[abh1sar]

@blueorangutan test

[blueorangutan]

@abh1sar a [SL] Trillian-Jenkins test job (ol8 mgmt + kvm-ol8) has been kicked to run smoke tests