fix: validate preserve_static_ips requires source_vm_power='on'

[MiriSafra]

Summary

• Add early validation in prepared_plan: fail fast if preserve_static_ips is set but source_vm_power is not "on"

Changed Files

File	Change
conftest.py	Add ValueError validation before VM processing loop

Test plan

• Pre-commit passes
• Warm sanity still passes
• Cold sanity still passes

Summary by CodeRabbit

• Bug Fixes
  • Strengthened validation for preserving static IPs: when enabled, the system now checks that each VM is powered on before collecting static IP and NIC name data, and surfaces an error if any VM is not running.

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[coderabbitai]

Walkthrough

The prepared_plan fixture adds a precondition check that validates each VM has power enabled (source_vm_power == "on") when the plan requests static IP preservation. If any VM fails this check, a ValueError is raised to indicate guest tools must be running.

Changes

Static IP Preservation Validation

Layer / File(s)	Summary
Static IP preservation precondition validation conftest.py	When preserve_static_ips is enabled, the fixture validates that each VM's source_vm_power is set to "on"; raises ValueError for any VM lacking power, ensuring guest tools are available for static IP and NIC name data collection.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• RedHatQE/mtv-api-tests#536: Related changes to prepared_plan gating detect_guest_nic_names on preserve_static_ips.
• RedHatQE/mtv-api-tests#524: Related fixture changes around guest-ops–driven guest data collection and availability checks.
• RedHatQE/mtv-api-tests#494: Related edits to static-IP preservation flow and verification polling.

Suggested reviewers

• krcmarik
• myakove
• solenoci

Suggested labels

size/L, branch-main

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly and accurately describes the main change: adding validation that preserve_static_ips requires source_vm_power to be 'on'.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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[MiriSafra]

/verified