test(plugin): fix TestGetNumaNode failure caused by existing PCI bus ID

[shinigami-777]

What type of PR is this?
/kind failing-test

What this PR does / why we need it:
The TestGetNumaNode test in register_test.go previously hardcoded the PCI bus ID to be 00000000:02:00.0 with the assumption that this device would not exist on the test host (and therefore lack a /sys/bus/pci/devices/.../numa_node file). However, on machines where a device actually does exist at 0000:02:00.0 such as local dev environments or specific CI nodes, the GetNumaNode function successfully reads the file instead of returning the expected error, causing the test to fail (my own machine had this case and thus the test ./pkg/device-plugin/nvidiadevice/nvinternal/plugin/ kept failing).

Change Made:

• pkg/device-plugin/nvidiadevice/nvinternal/plugin/register_test.go: Updated the mocked PciInfo.BusId in the test from 00000000:02:00.0 to an impossible bus ID 0000DEAD:BE:EF.0.

By using DEAD:BE:EF.0, we can guarantee that the numa_node sysfs path will never exist on any machine regardless of their local hardware setup, ensuring the error branch is deterministically triggered and the test passes consistently .
Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

AI assistance disclosure:
I saw that make test was failing on my machine while doing something and used Gemini Pro 3.1 for investigating some of the recent commits to find the cause. Verified everything manually before creating the PR.

Does this PR introduce a user-facing change?:
No, this only modifies a unit test that might fail for some machines.

Summary by CodeRabbit

• Tests
  • Updated a test fixture’s simulated PCI bus ID while preserving existing test behavior and assertions.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: d48d1ecf-6bd7-4be2-9ce7-8bfd61f37cab

📥 Commits

Reviewing files that changed from the base of the PR and between 91f0248 and 48a3654.

📒 Files selected for processing (1)

• pkg/device-plugin/nvidiadevice/nvinternal/plugin/register_test.go

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📝 Walkthrough

Walkthrough

The absent-NUMA-node test fixture now uses 0000:DEAD:BE:EF.0 as its mocked PCI bus ID. Test behavior and assertions remain unchanged.

Changes

PCI fixture update

Layer / File(s)	Summary
Update absent-NUMA-node test fixture pkg/device-plugin/nvidiadevice/nvinternal/plugin/register_test.go	The test uses the non-zero PCI bus ID 0000:DEAD:BE:EF.0.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• Project-HAMi/HAMi#2195: Adds the test data affected by this PCI bus ID fixture change.

Suggested reviewers: fouof

Poem

A rabbit checks the bus ID bright,
DEAD:BE:EF.0 fits just right.
The NUMA test hops on through,
With assertions unchanged and true.
Nibble nibble, test suite green!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the test fix and its cause, matching the pull request's main change.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
unittests	62.32% <ø> (+0.02%)	⬆️

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[FouoF]

/lgtm

[hami-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FouoF, shinigami-777

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• OWNERS [FouoF]

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