docs: add utilities unit test requirements to AGENTS.md

[geetikakay]

What this PR does / why we need it:

Running utilities-unittests only checks that existing tests pass. It does not tell contributors or AI assistants when new utilities unit tests are required. This change help in doing utilities unit test assessment before commit. If we do it before , we could avoid runtime CI failures.

Which issue(s) this PR fixes:

Special notes for reviewer:

I experiment , i add a function in data_utils.py. Without this PR, it doesn’t add a test for newly added function.
After this PR, it adds adds test for it

jira-ticket:

Summary by CodeRabbit

• Documentation
  • Updated contributor guidance with clearer requirements for adding or updating unit tests in utilities/.
  • Clarified when utility tests are not needed and how to note exceptions in PR comments.
  • Revised pre-commit verification steps to include the new utilities test check.
  • Added a reference to the utilities unit test README in the related documentation list.

[openshift-virtualization-qe-bot-2]

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ℹ️ Recent review info

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Run ID: 8ae7011e-489f-4562-9f09-837dcb0ed54b

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Reviewing files that changed from the base of the PR and between a38dcdb and 2618578.

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• AGENTS.md

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• AGENTS.md

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**

⚙️ CodeRabbit configuration file

**: # AI Review and Development Standards

Assisted-by: Claude noreply@anthropic.com

Coding standards, conventions, and review guidelines for openshift-virtualization-tests.

These rules apply to ALL contributors and review tools — human and AI alike.

Strict Rules (MANDATORY)

Linter Suppressions PROHIBITED

• ❌ NEVER add # noqa, # type: ignore, # pylint: disable
• ❌ NEVER disable linter/mypy rules to work around issues
• ✅ FIX THE CODE - If linter complains, the code is wrong
• If you think a rule is wrong: ASK the user for explicit approval

Code Reuse (Search-First Development)

Before writing ANY new code:

1. SEARCH codebase for existing implementations
2. CHECK utilities/ for shared functions
3. CHECK libs/ for shared libraries
4. CHECK tests/ for shared fixtures and helper functions
5. CHECK pyproject.toml dependencies — project packages (e.g., pyhelper-utils, ocp-resources, openshift-python-wrapper) may already provide the functionality
6. VERIFY no similar logic exists elsewhere
7. NEVER duplicate logic - extract to shared module
8. REUSE existing code and patterns — only write new when nothing exists

External package examples:

• Shell commands — use pyhelper_utils.shell.run_command, NEVER use subprocess.run directly in test/utility code
• OpenShift resources — use ocp-resources classes, NEVER construct raw YAML dicts

Python Requirements

• Type hints MANDATORY - mypy strict mode in libs/, all new public functions under utilities MUST be typed
• Use TYPE_CHECKING for type-only imports - wrap imports needed solely for type hints in if TYPE_CHECKING: to avoid runtime overhead and circular imports
• Google-format docstrings REQUIRED - for all public functions with non-obvious return values OR side effects
• No defensive programming - fail-fast, don't hide bugs with fake defaults (see exceptions below)
• ALWAYS use uv run -...

Files:

• AGENTS.md

---

⚙️ CodeRabbit configuration file

**: ## PR Template Validation
Check the PR description for required sections from .github/pull_request_template.md.
Required sections (must be present, even if empty):

• ##### What this PR does / why we need it: — MUST be present AND have meaningful content.
  Flag as HIGH if the section is missing, empty, whitespace-only, contains only HTML comments,
  or contains only placeholder tokens such as TBD, TBA, N/A, -, —, none, or ..
• ##### Which issue(s) this PR fixes: — must be present (may be empty)
• ##### Special notes for reviewer: — must be present (may be empty)
• ##### jira-ticket: — must be present (may be empty)
  If any required section is absent, or What this PR does / why we need it: has no content,
  flag it as HIGH severity and ask the author to restore the missing template section(s).

Approval Policy

You may approve the PR when ALL of the following are true:

• All your review comments have been addressed with either:
  • a code/doc change that fixes the issue, or
  • a substantive author response that justifies no code change.
    Thread "resolved" state alone is not sufficient.
    OR you had no review comments.
• If you posted a test execution plan comment requesting tests, and the PR author replied
  with a comment explaining why the requested tests are not needed or were already covered,
  treat that as an acceptable response — do not block approval on the test plan alone.
• The author's explanation must be reasonable and specific (not just "N/A" or "not needed").
  Accept explanations like: "these tests were already run in CI", "this change is docs-only",
  "the affected tests are quarantined", or "verified manually on cluster X".

Files:

• AGENTS.md

---

📝 Walkthrough

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[geetikakay]

/verified

[openshift-virtualization-qe-bot-3]

@coderabbitai

Test execution plan request details

CRITICAL: You MUST post an inline review comment on the first changed line of the first file.
The inline comment should contain the full Test Execution Plan (smoke decision, gating decision, and specific affected tests).
Do NOT submit a blocking review event (REQUEST_CHANGES/APPROVE).
Post a single inline PR comment on Files Changed (non-blocking COMMENT flow).

As an expert software testing engineer, analyze all modified files in this PR and create a targeted test execution plan.
You will post an inline review comment with the test execution plan on the first changed file.
If you fail to run or post a comment, retry.

Analysis Requirements:

1. Examine code changes in each modified file

2. Identify affected code paths, functions, and classes

3. Analyze pytest-specific elements: fixtures (scope, dependencies), parametrization, markers, conftest changes

4. Trace test dependencies through imports, shared utilities, fixture inheritance, fixture teardown, and yield from cleanup in conftest

5. Detect new tests introduced in the PR

6. Utilities and libs impact (when utilities/ or libs/ changes):
   You MUST use shell scripts (rg, git diff) to trace the full impact.
   Follow these sub-steps in order:

   6a. Identify modified symbols: For each changed file under utilities/ or libs/,
   list every modified function or method.
   Example: git diff HEAD~1 --unified=0 -- utilities/hco.py | grep '^[+-]def '

   6b. Find direct callers: Search tests and conftest for each symbol from 6a.
   Example: rg -l 'get_hco_version' tests/

   6c. Trace fixture teardown and cleanup: Find fixtures that reach
   the modified symbol through yield from or context-manager wrappers.
   Example: rg -l 'yield from.*enable_common_boot|def.*enable_common_boot' tests/

   6d. Trace same-file callers: In each changed file, find other functions
   whose body calls a modified symbol (including code after yield
   in @contextmanager helpers).
   Example: rg 'get_hco_version|enable_common_boot' utilities/hco.py

   6e. Expand transitively: If function A calls modified B, then
   tests/fixtures that call A are affected — even when the test body
   never imports B directly.

   Do NOT limit impact to tests that import the modified symbol only.

7. Smoke test impact: Intersect the affected set from step 6 with smoke-marked tests.
   Run: rg -l '@pytest.mark.smoke' tests/
   VERIFY the above command returned actual file paths before concluding False.
   Set True if either condition is met:

   • a smoke-marked file appears in the affected set from 6b-6e, OR
   • any conftest.py in the smoke test's parent-directory hierarchy (up to repo root)
     imports or calls a modified utilities/libs symbol — including autouse fixtures
     that depend on modified functions. ALL tests in that directory and below are affected.
     Example check: for each smoke_file, scan dirname(smoke_file)/conftest.py,
     dirname(dirname(smoke_file))/conftest.py, etc. for modified symbol imports
     and autouse fixtures that depend on modified symbols.

8. Gating test impact: Intersect the affected set from step 6 with gating-marked tests.
   Run: rg -l '@pytest.mark.gating' tests/
   Set True if a gating-marked file also appears in the affected set from 6b-6e.
   Utilities/libs changes often affect gating tests without affecting smoke tests.
   Do NOT stop analysis after concluding Run smoke tests: False.

Output rules:
Do NOT include analysis step numbers (1-8) in your visible output.

Your deliverable:
Your inline informational comment will be based on the following requirements:

Test Execution Plan

• Run smoke tests: True / False — If True, state the dependency path (test → fixture → changed symbol). True ONLY with a verified path.
• Run gating tests: True / False — If True, state the dependency path. True if any gating-marked test is in the affected set.
• Affected tests to run (required when utilities/, libs/, or shared conftest changes — list concrete paths even when smoke is False)

Use these formats:

• path/to/test_file.py - When the entire test file needs verification
• path/to/test_file.py::TestClass::test_method - When specific test(s) needed
• path/to/test_file.py::test_function - When specific test(s) needed
• -m marker - When a marker covers multiple affected tests (e.g. -m gating only if ALL gating tests in scope need run)
• Tag each listed test or group with its marker when not obvious, e.g. (gating) or (smoke)

Real test commands (MANDATORY when changes affect session/runtime code):

When the affected code runs at session/collection time (conftest fixtures, pytest plugins,
config hooks, session-scoped setup) or modifies runtime behavior that unit tests mock away,
you MUST include concrete pytest commands the PR author must run on a real cluster
to verify the change works end-to-end. Include:

• A command for the error/fix path (the scenario the PR fixes)
• A command for the happy path (regression: the normal case still works)
• Use lightweight tests (e.g., --collect-only for startup failures,
  a single small test for runtime behavior)
  If the PR only changes test logic (not utilities/libs/conftest), the affected test
  paths themselves serve as the real test commands — no separate section needed.

Example output for a session-startup fix:

**Real tests (cluster required)**
Error path (the fix):
`pytest tests/storage/.../test_foo.py --storage-class-matrix=nonexistent-sc --collect-only`
Expected: ValueError with clear message, not IndexError

Happy path (regression):
`pytest tests/storage/.../test_foo.py --storage-class-matrix=<valid-sc> -k test_bar`
Expected: session starts normally

Guidelines:

• Include tests affected directly OR via fixture setup/teardown, yield from cleanup, or transitive utility call chains (caller calls modified helper)
• Use a full file path only if ALL tests in that file require verification
• Use file path + test name when only specific tests use an affected fixture or utility wrapper (preferred for partial file impact)
• If a test marker can cover multiple files/tests, provide the marker
• Balance coverage vs over-testing - Keep descriptions minimal
• Example: if leaf helper foo() changes, include tests whose fixture teardown calls wrapper bar() where bar() calls foo(), even when the test body only imports an unrelated symbol from the same utilities module

Hardware-Related Checks (SR-IOV, GPU, DPDK):

When PR modifies fixtures for hardware-specific resources:

• Collection Safety: Fixtures MUST have existence checks (return None when hardware unavailable)
• Test Plan: MUST verify both WITH and WITHOUT hardware:
  • Run affected tests on cluster WITH hardware
  • Verify collection succeeds on cluster WITHOUT hardware

CRITICAL WORKFLOW COMPLETION RULES:

When responding to this test execution plan request, you MUST follow these rules EXACTLY:

1. YOUR ONLY DELIVERABLE: Post one non-blocking inline comment containing the test execution plan on the first changed line
2. THEN STOP IMMEDIATELY - Do NOT generate any additional response
3. FALLBACK ONLY: If inline comment API calls fail after retrying, post as a regular PR comment
4. SILENCE = SUCCESS: After successfully submitting the review, your task is complete. No confirmation needed.

ABSOLUTE PROHIBITIONS (violating these creates empty/meaningless reviews):

• ❌ Do NOT post acknowledgment messages like "Test execution plan posted", "Review posted successfully", "I've successfully posted"
• ❌ Do NOT mention review IDs, URLs, or confirmation of posting in the PR thread
• ❌ Do NOT add any follow-up comments after submitting the review
• ❌ Do NOT reply to confirm task completion
• ❌ Do NOT explain what you did - just do it and stop

Remember: The pull request review is visible to users. Additional comments are redundant noise.

CRITICAL — Verification rules for smoke and gating decisions:
- For each True decision, you must have traced a concrete path: test file → fixture → utility function → modified symbol.
- Do NOT assume impact based on scope, file proximity, or infrastructure-sounding names.
Only set True when you trace a concrete path through steps 6a-6e, then 7 or 8.
WRONG: "utilities/hco.py changed → run smoke" (no traced dependency path)
WRONG: "Run smoke tests: False" with no affected-test list when gating tests use the changed utility
RIGHT: "Run smoke tests: False, Run gating tests: True" plus tests/.../test_foo.py::TestBar::test_baz (gating)
RIGHT: "Smoke test X uses fixture Y → wrapper Z → changed function W in utilities/hco.py"

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

@openshift-virtualization-qe-bot-3

Test Execution Plan

This PR only modifies AGENTS.md (a Markdown documentation file). No files under utilities/, libs/, tests/, or conftest.py are changed, and no functions, fixtures, or markers are touched.

• Run smoke tests: False — No code symbols were modified; there is no dependency path from any smoke-marked test to this change.
• Run gating tests: False — Same reasoning; no gating-marked test depends on documentation content.
• Affected tests to run: None. This is a documentation-only change with no executable code impact.

No real/cluster test commands are needed since no session, runtime, or collection-time code was touched.

Note: I don't have a capability to post a separate inline review comment outside of this reply thread, so the plan above is provided here in full.

[rnetser]

/approve
/lgtm

[openshift-virtualization-qe-bot-3]

/retest all

Auto-triggered: Files in this PR were modified by merged PR #5440.

Overlapping files

AGENTS.md

[geetikakay]

/verified

[openshift-virtualization-qe-bot-3]

@coderabbitai

Test execution plan request details

CRITICAL: You MUST post an inline review comment on the first changed line of the first file.
The inline comment should contain the full Test Execution Plan (smoke decision, gating decision, and specific affected tests).
Do NOT submit a blocking review event (REQUEST_CHANGES/APPROVE).
Post a single inline PR comment on Files Changed (non-blocking COMMENT flow).

As an expert software testing engineer, analyze all modified files in this PR and create a targeted test execution plan.
You will post an inline review comment with the test execution plan on the first changed file.
If you fail to run or post a comment, retry.

Analysis Requirements:

1. Examine code changes in each modified file

2. Identify affected code paths, functions, and classes

3. Analyze pytest-specific elements: fixtures (scope, dependencies), parametrization, markers, conftest changes

4. Trace test dependencies through imports, shared utilities, fixture inheritance, fixture teardown, and yield from cleanup in conftest

5. Detect new tests introduced in the PR

6. Utilities and libs impact (when utilities/ or libs/ changes):
   You MUST use shell scripts (rg, git diff) to trace the full impact.
   Follow these sub-steps in order:

   6a. Identify modified symbols: For each changed file under utilities/ or libs/,
   list every modified function or method.
   Example: git diff HEAD~1 --unified=0 -- utilities/hco.py | grep '^[+-]def '

   6b. Find direct callers: Search tests and conftest for each symbol from 6a.
   Example: rg -l 'get_hco_version' tests/

   6c. Trace fixture teardown and cleanup: Find fixtures that reach
   the modified symbol through yield from or context-manager wrappers.
   Example: rg -l 'yield from.*enable_common_boot|def.*enable_common_boot' tests/

   6d. Trace same-file callers: In each changed file, find other functions
   whose body calls a modified symbol (including code after yield
   in @contextmanager helpers).
   Example: rg 'get_hco_version|enable_common_boot' utilities/hco.py

   6e. Expand transitively: If function A calls modified B, then
   tests/fixtures that call A are affected — even when the test body
   never imports B directly.

   Do NOT limit impact to tests that import the modified symbol only.

7. Smoke test impact: Intersect the affected set from step 6 with smoke-marked tests.
   Run: rg -l '@pytest.mark.smoke' tests/
   VERIFY the above command returned actual file paths before concluding False.
   Set True if either condition is met:

   • a smoke-marked file appears in the affected set from 6b-6e, OR
   • any conftest.py in the smoke test's parent-directory hierarchy (up to repo root)
     imports or calls a modified utilities/libs symbol — including autouse fixtures
     that depend on modified functions. ALL tests in that directory and below are affected.
     Example check: for each smoke_file, scan dirname(smoke_file)/conftest.py,
     dirname(dirname(smoke_file))/conftest.py, etc. for modified symbol imports
     and autouse fixtures that depend on modified symbols.

8. Gating test impact: Intersect the affected set from step 6 with gating-marked tests.
   Run: rg -l '@pytest.mark.gating' tests/
   Set True if a gating-marked file also appears in the affected set from 6b-6e.
   Utilities/libs changes often affect gating tests without affecting smoke tests.
   Do NOT stop analysis after concluding Run smoke tests: False.

Output rules:
Do NOT include analysis step numbers (1-8) in your visible output.

Your deliverable:
Your inline informational comment will be based on the following requirements:

Test Execution Plan

• Run smoke tests: True / False — If True, state the dependency path (test → fixture → changed symbol). True ONLY with a verified path.
• Run gating tests: True / False — If True, state the dependency path. True if any gating-marked test is in the affected set.
• Affected tests to run (required when utilities/, libs/, or shared conftest changes — list concrete paths even when smoke is False)

Use these formats:

• path/to/test_file.py - When the entire test file needs verification
• path/to/test_file.py::TestClass::test_method - When specific test(s) needed
• path/to/test_file.py::test_function - When specific test(s) needed
• -m marker - When a marker covers multiple affected tests (e.g. -m gating only if ALL gating tests in scope need run)
• Tag each listed test or group with its marker when not obvious, e.g. (gating) or (smoke)

Real test commands (MANDATORY when changes affect session/runtime code):

When the affected code runs at session/collection time (conftest fixtures, pytest plugins,
config hooks, session-scoped setup) or modifies runtime behavior that unit tests mock away,
you MUST include concrete pytest commands the PR author must run on a real cluster
to verify the change works end-to-end. Include:

• A command for the error/fix path (the scenario the PR fixes)
• A command for the happy path (regression: the normal case still works)
• Use lightweight tests (e.g., --collect-only for startup failures,
  a single small test for runtime behavior)
  If the PR only changes test logic (not utilities/libs/conftest), the affected test
  paths themselves serve as the real test commands — no separate section needed.

Example output for a session-startup fix:

**Real tests (cluster required)**
Error path (the fix):
`pytest tests/storage/.../test_foo.py --storage-class-matrix=nonexistent-sc --collect-only`
Expected: ValueError with clear message, not IndexError

Happy path (regression):
`pytest tests/storage/.../test_foo.py --storage-class-matrix=<valid-sc> -k test_bar`
Expected: session starts normally

Guidelines:

• Include tests affected directly OR via fixture setup/teardown, yield from cleanup, or transitive utility call chains (caller calls modified helper)
• Use a full file path only if ALL tests in that file require verification
• Use file path + test name when only specific tests use an affected fixture or utility wrapper (preferred for partial file impact)
• If a test marker can cover multiple files/tests, provide the marker
• Balance coverage vs over-testing - Keep descriptions minimal
• Example: if leaf helper foo() changes, include tests whose fixture teardown calls wrapper bar() where bar() calls foo(), even when the test body only imports an unrelated symbol from the same utilities module

Hardware-Related Checks (SR-IOV, GPU, DPDK):

When PR modifies fixtures for hardware-specific resources:

• Collection Safety: Fixtures MUST have existence checks (return None when hardware unavailable)
• Test Plan: MUST verify both WITH and WITHOUT hardware:
  • Run affected tests on cluster WITH hardware
  • Verify collection succeeds on cluster WITHOUT hardware

CRITICAL WORKFLOW COMPLETION RULES:

When responding to this test execution plan request, you MUST follow these rules EXACTLY:

1. YOUR ONLY DELIVERABLE: Post one non-blocking inline comment containing the test execution plan on the first changed line
2. THEN STOP IMMEDIATELY - Do NOT generate any additional response
3. FALLBACK ONLY: If inline comment API calls fail after retrying, post as a regular PR comment
4. SILENCE = SUCCESS: After successfully submitting the review, your task is complete. No confirmation needed.

ABSOLUTE PROHIBITIONS (violating these creates empty/meaningless reviews):

• ❌ Do NOT post acknowledgment messages like "Test execution plan posted", "Review posted successfully", "I've successfully posted"
• ❌ Do NOT mention review IDs, URLs, or confirmation of posting in the PR thread
• ❌ Do NOT add any follow-up comments after submitting the review
• ❌ Do NOT reply to confirm task completion
• ❌ Do NOT explain what you did - just do it and stop

Remember: The pull request review is visible to users. Additional comments are redundant noise.

CRITICAL — Verification rules for smoke and gating decisions:
- For each True decision, you must have traced a concrete path: test file → fixture → utility function → modified symbol.
- Do NOT assume impact based on scope, file proximity, or infrastructure-sounding names.
Only set True when you trace a concrete path through steps 6a-6e, then 7 or 8.
WRONG: "utilities/hco.py changed → run smoke" (no traced dependency path)
WRONG: "Run smoke tests: False" with no affected-test list when gating tests use the changed utility
RIGHT: "Run smoke tests: False, Run gating tests: True" plus tests/.../test_foo.py::TestBar::test_baz (gating)
RIGHT: "Smoke test X uses fixture Y → wrapper Z → changed function W in utilities/hco.py"

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

@openshift-virtualization-qe-bot-3

Test Execution Plan

This PR only modifies AGENTS.md (documentation). No files under utilities/, libs/, tests/, or conftest.py are changed, and no functions, fixtures, or markers are touched.

• Run smoke tests: False — No code symbols were modified; there is no dependency path from any smoke-marked test to this change.
• Run gating tests: False — Same reasoning; no gating-marked test depends on documentation content.
• Affected tests to run: None. This is a documentation-only change with no executable code impact.

No real/cluster test commands are needed since no session, runtime, or collection-time code was touched.

Note: I don't have a capability to post a separate inline review comment outside of this reply thread, so the plan above is provided here in full (same conclusion as the prior identical request).