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net, network policy: Use fixtures' ports#4051

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azhivovk wants to merge 1 commit intoRedHatQE:mainfrom
azhivovk:net_policy_ports
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net, network policy: Use fixtures' ports#4051
azhivovk wants to merge 1 commit intoRedHatQE:mainfrom
azhivovk:net_policy_ports

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@azhivovk
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@azhivovk azhivovk commented Mar 3, 2026

Small follow-up requested change https://github.com/RedHatQE/openshift-virtualization-tests/pull/3588/changes#r2753623060
Use the ports provided by the fixtures instead
of the ports constant to improve test readability
and clearly distinguish between allowed and
disallowed ports.

Summary by CodeRabbit

Release Notes

  • Tests
    • Refactored network policy test structure to improve fixture management and test maintainability.

Small follow-up requested change.
Use the ports provided by the fixtures instead
of the ports constant to improve test readability
and clearly distinguish between allowed and
disallowed ports.

Signed-off-by: Asia Khromov <azhivovk@redhat.com>
@openshift-virtualization-qe-bot-5

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coderabbitai bot commented Mar 3, 2026

📝 Walkthrough

Walkthrough

The change refactors fixture usage in network policy tests by converting decorator-based fixture injection to parameter-based injection, enabling tests to use fixture-provided port lists instead of a hardcoded constant.

Changes

Cohort / File(s) Summary
Fixture Pattern Refactoring
tests/network/network_policy/test_network_policy.py
Removed @usefixtures decorators from test functions and converted to parameter-based fixture injection. Updated test_network_policy_allow_single_http_port and test_network_policy_allow_all_http to accept fixture parameters and use fixture-provided port lists instead of TEST_PORTS constant.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check ❓ Inconclusive The description covers the PR's purpose and rationale but lacks several required template sections. Fill in missing sections from the template: 'Short description', 'More details', and 'jira-ticket' fields are either missing or empty.
✅ Passed checks (1 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly and specifically describes the main change: refactoring to use fixture-provided ports instead of a constant.

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Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
tests/network/network_policy/test_network_policy.py (1)

42-59: 🧹 Nitpick | 🔵 Trivial

MEDIUM: Derive the denied port from the fixture allow-list, not a fixed index

Line 51 correctly switched the allowed probe to fixture data, but Line 58 still hardcodes TEST_PORTS[1]. If the fixture’s allowed set changes, this can drift from the test intent. Compute a blocked port as “not in allow_single_http_port.ports”.

Suggested refactor
 def test_network_policy_allow_single_http_port(
     subtests,
     network_policy_vma,
     network_policy_vmb,
     allow_single_http_port,
 ):
+    allowed_port = allow_single_http_port.ports[0]
+    blocked_port = next(
+        candidate_port for candidate_port in TEST_PORTS if candidate_port not in allow_single_http_port.ports
+    )
     pod_ips = network_policy_vma.vmi.virt_launcher_pod.instance.status.podIPs
     for pod_ip_entry in pod_ips:
         dst_ip = pod_ip_entry["ip"]
         with subtests.test(msg=f"Testing {dst_ip}"):
             run_ssh_commands(
                 host=network_policy_vmb.ssh_exec,
                 commands=[
-                    shlex.split(format_curl_command(ip_address=dst_ip, port=allow_single_http_port.ports[0], head=True))
+                    shlex.split(format_curl_command(ip_address=dst_ip, port=allowed_port, head=True))
                 ],
             )

             with pytest.raises(CommandExecFailed):
                 run_ssh_commands(
                     host=network_policy_vmb.ssh_exec,
-                    commands=[shlex.split(format_curl_command(ip_address=dst_ip, port=TEST_PORTS[1], head=True))],
+                    commands=[shlex.split(format_curl_command(ip_address=dst_ip, port=blocked_port, head=True))],
                 )
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@tests/network/network_policy/test_network_policy.py` around lines 42 - 59,
The test still hardcodes a denied port via TEST_PORTS[1]; change it to derive a
blocked port from the allow-list fixture instead: compute a port_not_allowed by
selecting any port from TEST_PORTS (or another test-port source) that is not in
allow_single_http_port.ports, then use that port in the second run_ssh_commands
call; update references in the loop where pod_ips,
network_policy_vma.vmi.virt_launcher_pod.instance.status.podIPs,
run_ssh_commands, and format_curl_command are used so the denied-port assertion
uses the computed port_not_allowed rather than TEST_PORTS[1].
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Outside diff comments:
In `@tests/network/network_policy/test_network_policy.py`:
- Around line 42-59: The test still hardcodes a denied port via TEST_PORTS[1];
change it to derive a blocked port from the allow-list fixture instead: compute
a port_not_allowed by selecting any port from TEST_PORTS (or another test-port
source) that is not in allow_single_http_port.ports, then use that port in the
second run_ssh_commands call; update references in the loop where pod_ips,
network_policy_vma.vmi.virt_launcher_pod.instance.status.podIPs,
run_ssh_commands, and format_curl_command are used so the denied-port assertion
uses the computed port_not_allowed rather than TEST_PORTS[1].

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Reviewing files that changed from the base of the PR and between a945538 and 9b4dea7.

📒 Files selected for processing (1)
  • tests/network/network_policy/test_network_policy.py

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Thanks!

/approve

@azhivovk
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azhivovk commented Mar 3, 2026

/verified

Verified on BM with cnv-4.22:
uv run pytest --verbose --jira -rs -s -o log_cli=true --leftovers-collector --tb=native --skip-deprecated-api-test --cluster-sanity-skip-storage-check tests/network/network_policy/test_network_policy.py
Result: 3 passed, 1 deselected, 35 warnings, 6 subtests passed in 408.62s (0:06:48)

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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 Test Execution Plan with the smoke tests recommendation.
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As an expert software testing engineer, analyze all modified files in this PR and create a targeted test execution plan.
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  1. Examine code changes in each modified file
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  3. Analyze pytest-specific elements: fixtures (scope, dependencies), parametrization, markers, conftest changes
  4. Trace test dependencies through imports, shared utilities, and fixture inheritance
  5. Detect new tests introduced in the PR
  6. Smoke Test Impact Analysis: Determine if any changes could affect smoke tests by checking:
    • Changes to files/functions used by tests marked with @pytest.mark.smoke
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    • Changes to core infrastructure code (utilities/, libs/) that smoke tests depend on

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  • Balance coverage vs over-testing - Keep descriptions minimal

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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 an inline review 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 submitting the review fails after retrying, post as a regular PR comment
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Remember: The pull request review is visible to users. Additional comments are redundant noise.

CRITICAL: Before setting "Run smoke tests: True", you MUST use shell scripts to:
- Trace the actual fixture dependency chain from smoke tests to changed fixtures
- Verify that smoke tests actually import/use changed utilities or functions
- Confirm the dependency path exists; do NOT assume based on scope or semantics
- Be conservative: Session-scoped fixtures or infrastructure-sounding names do NOT
automatically mean smoke test impact. Only flag smoke test impact when you can
demonstrate a concrete dependency path.
WRONG: "This session-scoped storage fixture might affect smoke tests"
RIGHT: "Smoke test X uses fixture Y, which depends on the changed fixture Z"



@pytest.mark.usefixtures("allow_single_http_port")
@pytest.mark.order(before="test_network_policy_allow_all_http")
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Test Execution Plan

Run smoke tests: False

Rationale:

  • No smoke tests exist in the network_policy module
  • Changes are purely refactoring: replacing TEST_PORTS constant usage with fixture-provided ports
  • Fixtures (allow_single_http_port, allow_all_http_ports) are function-scoped and local to network_policy tests
  • No smoke test dependencies traced to these fixtures

Tests to Execute:

tests/network/network_policy/test_network_policy.py

Verification Focus:

  • test_network_policy_allow_single_http_port: Verify fixture parameter usage (allow_single_http_port.ports[0])
  • test_network_policy_allow_all_http: Verify iteration over allow_all_http_ports.ports
  • test_network_policy_deny_all_http: Verify removal of usefixtures decorator doesn't break test

Notes:

  • User has already verified: 3 passed on BM with cnv-4.22
  • Pure refactoring change improves readability by using fixture-provided ports instead of hardcoded constants

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Done

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coderabbitai bot commented Mar 3, 2026

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🧩 Analysis chain

🏁 Script executed:

#!/bin/bash

# Get the PR diff to understand exact changes
gh pr diff 4051 --repo RedHatQE/openshift-virtualization-tests

echo "=== SEPARATOR ==="

# Find smoke tests in the network policy test file
rg "pytest.mark.smoke" tests/network/network_policy/ --type=py -B2 -A5

echo "=== SEPARATOR ==="

# Search for the modified fixtures to understand their scope and usage
rg "def allow_single_http_port|def allow_all_http_ports" tests/network/ --type=py -B2 -A10

echo "=== SEPARATOR ==="

# Check if any smoke tests use network_policy fixtures
rg "pytest.mark.smoke" tests/network/ --type=py -l | xargs -I {} rg "network_policy|allow_single_http_port|allow_all_http_ports" {}

echo "=== SEPARATOR ==="

# Get the first changed file and line number for posting inline comment
gh pr diff 4051 --repo RedHatQE/openshift-virtualization-tests | head -50

Length of output: 5957


🏁 Script executed:

#!/bin/bash

# Post inline review comment on the first changed line
# The first changed line is line 34 (removal of `@pytest.mark.usefixtures` decorator)

gh api \
  --method POST \
  -H "Accept: application/vnd.github+json" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  /repos/RedHatQE/openshift-virtualization-tests/pulls/4051/comments \
  -f body="## Test Execution Plan

**Run smoke tests:** False

**Rationale:**
- No smoke tests exist in the network_policy module
- Changes are purely refactoring: replacing TEST_PORTS constant usage with fixture-provided ports
- Fixtures (allow_single_http_port, allow_all_http_ports) are function-scoped and local to network_policy tests
- No smoke test dependencies traced to these fixtures

**Tests to Execute:**

\`\`\`
tests/network/network_policy/test_network_policy.py
\`\`\`

**Verification Focus:**
- test_network_policy_allow_single_http_port: Verify fixture parameter usage (allow_single_http_port.ports[0])
- test_network_policy_allow_all_http: Verify iteration over allow_all_http_ports.ports
- test_network_policy_deny_all_http: Verify removal of usefixtures decorator doesn't break test

**Notes:**
- User has already verified: 3 passed on BM with cnv-4.22
- Pure refactoring change improves readability by using fixture-provided ports instead of hardcoded constants" \
  -f commit_id="$(gh api /repos/RedHatQE/openshift-virtualization-tests/pulls/4051 --jq '.head.sha')" \
  -f path="tests/network/network_policy/test_network_policy.py" \
  -F line=34

Length of output: 3712



🧠 Learnings used
Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 0
File: :0-0
Timestamp: 2025-12-16T10:28:54.212Z
Learning: In the openshift-virtualization-tests repository, when determining smoke test impact for test execution plans, only set "Run smoke tests: True" if there is a verified, traceable dependency path from smoke tests to the changed code. Session-scoped fixtures or infrastructure-sounding changes do NOT automatically imply smoke test impact - the dependency chain must be explicitly verified using shell scripts before recommending smoke test execution.

Learnt from: jpeimer
Repo: RedHatQE/openshift-virtualization-tests PR: 0
File: :0-0
Timestamp: 2025-12-22T15:56:00.157Z
Learning: In the openshift-virtualization-tests repository, when responding to test execution plan requests from openshift-virtualization-qe-bot-3, do NOT use "REQUEST_CHANGES" review type if the PR author has already marked the PR as verified (e.g., with `/verified` command). Test execution plans are informational guides, not blocking requirements. Use COMMENT event for informational test plans, or only REQUEST_CHANGES if there are actual code issues that need to be addressed before merging.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 0
File: :0-0
Timestamp: 2025-12-16T14:00:59.076Z
Learning: In the openshift-virtualization-tests repository, when responding to test execution plan requests from openshift-virtualization-qe-bot-3, CodeRabbit must post ONLY an inline review comment on the Files Changed tab and then stop immediately without generating any follow-up comments in the PR discussion thread. No acknowledgment messages, no confirmation of posting, no explanation - silence after posting the inline review equals success. Additional comments create empty/meaningless reviews that clutter the PR.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 3062
File: conftest.py:333-333
Timestamp: 2025-12-16T20:11:03.645Z
Learning: In the openshift-virtualization-tests repository, when determining smoke test impact for changes affecting py_config["os_login_param"], follow this verification methodology: (1) Find all smoke tests: `rg "pytest.mark.smoke" --type=py -B2 | grep "def test_"`, (2) For each smoke test file, search for VM creation patterns: `rg "VirtualMachineForTests|running_vm|VirtualMachineForTestsFromTemplate|wait_for_ssh|check_ssh_connectivity"`, (3) Trace the dependency chain: smoke test → VirtualMachineForTests/running_vm() → wait_for_ssh_connectivity() (default enabled) → vm.login_params property → py_config["os_login_param"][vm.os_flavor], (4) Check utilities/virt.py for login_params usage: `rg "os_login_param|login_params" utilities/virt.py -C3`. Any smoke test creating VMs with default SSH connectivity checks (running_vm with check_ssh_connectivity=True) depends on os_login_param, even if the test doesn't directly reference it.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 1904
File: tests/network/conftest.py:348-362
Timestamp: 2025-10-27T15:30:06.412Z
Learning: In tests/network/conftest.py, the _verify_nmstate_running_pods function currently runs unconditionally in network_sanity, but rnetser plans to implement marker-based conditional checking (following the pattern of _verify_dpdk, _verify_sriov, etc.) in a future PR after adding nmstate markers to the relevant tests.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 0
File: :0-0
Timestamp: 2025-09-29T19:05:24.987Z
Learning: The test execution plan for PR `#1904` focuses on cluster-type conditional logic where nmstate functionality is bypassed on cloud clusters (Azure/AWS) but fully functional on bare-metal/PSI clusters, requiring different test strategies for each environment type.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 0
File: :0-0
Timestamp: 2025-09-29T19:05:24.987Z
Learning: For PR `#1904` test execution, the critical validation point is test_connectivity_over_migration_between_localnet_vms which should fail gracefully on cloud clusters but pass on bare-metal/PSI clusters, representing the core nmstate conditional logic functionality.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 3062
File: conftest.py:333-333
Timestamp: 2025-12-16T15:09:49.597Z
Learning: In the openshift-virtualization-tests repository, when conftest.py or utilities/bitwarden.py changes affect py_config["os_login_param"], smoke test impact must be determined by: (1) finding all smoke tests using `rg "pytest.mark.smoke"`, (2) checking each for VM creation patterns (VirtualMachineForTests, running_vm, VirtualMachineForTestsFromTemplate), (3) tracing whether running_vm is called with default check_ssh_connectivity=True, which accesses vm.login_params property that reads py_config["os_login_param"][vm.os_flavor]. The dependency chain is: smoke test → VM creation → running_vm → wait_for_ssh_connectivity → vm.login_params → os_login_param. Any smoke test creating VMs with SSH connectivity (the default) depends on os_login_param.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 0
File: :0-0
Timestamp: 2025-12-16T14:06:22.391Z
Learning: In the openshift-virtualization-tests repository, when posting test execution plan inline review comments using GitHub API, the full test execution plan content must go in the `comments[].body` field (which appears on Files Changed tab), NOT in the top-level `body` field (which appears in PR discussion thread). The top-level `body` field should be omitted or left empty to avoid posting redundant comments in the PR discussion thread.

Learnt from: yossisegev
Repo: RedHatQE/openshift-virtualization-tests PR: 3358
File: tests/network/sriov/test_sriov.py:21-21
Timestamp: 2026-01-07T09:52:22.771Z
Learning: For PRs that only remove or modify pytest markers (like removing pytest.mark.post_upgrade) without changing test logic in openshift-virtualization-tests, collection verification using `pytest --collect-only` is sufficient. Full test execution is not required to verify marker-only changes.

Learnt from: EdDev
Repo: RedHatQE/openshift-virtualization-tests PR: 3612
File: tests/network/user_defined_network/ip_specification/test_ip_specification.py:10-10
Timestamp: 2026-01-26T20:29:54.623Z
Learning: In the RedHatQE/openshift-virtualization-tests repository, when introducing STD (Standard Test Definition) PRs that define test case structure without implementation, it's acceptable and intentional to use `__test__ = False` to block pytest collection until the tests are fully implemented in a follow-up PR. The STD workflow involves: (1) defining test structure, markers, and documentation first, (2) implementing the actual test logic and removing the collection blocker in a subsequent PR.

Learnt from: yossisegev
Repo: RedHatQE/openshift-virtualization-tests PR: 3196
File: tests/network/upgrade/test_upgrade_network.py:4-4
Timestamp: 2025-12-22T16:27:44.327Z
Learning: For PRs that remove test cases (especially redundant test cleanup PRs in openshift-virtualization-tests), test collection verification (pytest --collect-only showing selected/deselected counts) is sufficient to confirm the removal was clean and the test module remains functional. Full test execution is not required for test deletion PRs.

Learnt from: servolkov
Repo: RedHatQE/openshift-virtualization-tests PR: 1776
File: libs/net/node_network.py:25-31
Timestamp: 2025-08-20T23:43:28.117Z
Learning: In the RedHatQE/openshift-virtualization-tests project, servolkov's team always uses bare metal (BM) clusters with IPv4 setup in their testing environment, making defensive checks for IPv4 data presence potentially redundant in their networking code.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 3371
File: scripts/tests_analyzer/compare_coderabbit_decisions.py:199-289
Timestamp: 2026-01-13T10:06:14.822Z
Learning: In the openshift-virtualization-tests repository, user rnetser prefers to keep pagination loops inline rather than extracting them into generic helper functions when the loops have different URL patterns and unique post-processing logic, as the inline approach improves readability and makes each endpoint's behavior more explicit.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 3228
File: .coderabbit.yaml:30-41
Timestamp: 2026-01-05T10:33:55.037Z
Learning: In the openshift-virtualization-tests repository, user rnetser prefers minimal pre-merge checks in CodeRabbit configuration: only docstrings enforcement (80% threshold) is needed, not title or description checks.

Learnt from: rnetser
Repo: RedHatQE/openshift-virtualization-tests PR: 2469
File: utilities/sanity.py:139-142
Timestamp: 2025-11-08T07:36:57.616Z
Learning: In the openshift-virtualization-tests repository, user rnetser prefers to keep refactoring PRs (like PR `#2469`) strictly focused on moving/organizing code into more granular modules without adding new functionality, error handling, or behavioral changes. Such improvements should be handled in separate PRs.

Learnt from: jpeimer
Repo: RedHatQE/openshift-virtualization-tests PR: 1160
File: tests/storage/storage_migration/test_mtc_storage_class_migration.py:165-176
Timestamp: 2025-06-17T07:45:37.776Z
Learning: In the openshift-virtualization-tests repository, user jpeimer prefers explicit fixture parameters over composite fixtures in test methods, even when there are many parameters, as they find this approach more readable and maintainable for understanding test dependencies.

Learnt from: jpeimer
Repo: RedHatQE/openshift-virtualization-tests PR: 3571
File: tests/storage/storage_migration/utils.py:158-167
Timestamp: 2026-01-25T13:18:26.819Z
Learning: In the openshift-virtualization-tests repository, user jpeimer prefers to avoid nitpicky style changes (e.g., removing `.keys()` from dict membership checks) because verifying every change is expensive. Be cautious about suggesting low-impact stylistic improvements that require verification overhead.

Learnt from: akri3i
Repo: RedHatQE/openshift-virtualization-tests PR: 1210
File: tests/virt/cluster/general/mass_machine_type_transition_tests/conftest.py:24-64
Timestamp: 2025-06-23T19:28:20.281Z
Learning: In OpenShift Virtualization mass machine type transition tests, the machine type glob pattern "pc-q35-rhel8.*.*" is intentionally hard-coded in the kubevirt_api_lifecycle_automation_job as it's used only once for this specific test case, with plans to update it in the future if the job needs to support other machine types.

Learnt from: RoniKishner
Repo: RedHatQE/openshift-virtualization-tests PR: 1411
File: utilities/os_utils.py:246-279
Timestamp: 2025-07-22T17:13:59.166Z
Learning: In the RedHatQE/openshift-virtualization-tests repository, CentOS preferences follow the format "centos-stream<version>" (e.g., "centos-stream9", "centos-stream10"). The generate_instance_type_centos_os_matrix function correctly uses regex to extract numeric versions and constructs the latest version string in the same format as the input preferences for proper comparison.

Learnt from: yossisegev
Repo: RedHatQE/openshift-virtualization-tests PR: 3873
File: tests/network/localnet/test_non_udn_localnet.py:7-9
Timestamp: 2026-02-25T10:52:23.378Z
Learning: In the RedHatQE/openshift-virtualization-tests repository, networking infrastructure requirements such as nmstate, localnet bridge mappings, and NIC availability are NOT considered special/platform-specific infrastructure that would warrant a tier3 marker. These are standard test environment capabilities in this repository's test environment, and tests requiring them do not automatically qualify as tier3 unless they involve other truly platform-specific/complex/time-consuming characteristics beyond standard network test infrastructure.

Learnt from: akri3i
Repo: RedHatQE/openshift-virtualization-tests PR: 1210
File: tests/virt/cluster/general/mass_machine_type_transition_tests/conftest.py:83-97
Timestamp: 2025-06-23T19:19:31.961Z
Learning: In OpenShift Virtualization mass machine type transition tests, the kubevirt_api_lifecycle_automation_job requires cluster-admin privileges to function properly, as confirmed by the test maintainer akri3i.

Learnt from: HarshithaMS005
Repo: RedHatQE/openshift-virtualization-tests PR: 2027
File: tests/network/nmstate/test_connectivity_after_nmstate_changes.py:231-233
Timestamp: 2025-10-08T07:16:46.347Z
Learning: Network tests in the openshift-virtualization-tests repository have a sanity check in tests/network/conftest.py (around line 237) that validates len(hosts_common_available_ports) > 1 before tests run. This ensures multinic tests requiring hosts_common_available_ports[-2] won't encounter IndexError, making fixture-level guards redundant.

Learnt from: dshchedr
Repo: RedHatQE/openshift-virtualization-tests PR: 1932
File: tests/virt/node/migration_and_maintenance/conftest.py:57-64
Timestamp: 2025-09-08T21:34:28.924Z
Learning: In OpenShift Virtualization tests, MigrationPolicy fixtures should use static names rather than unique suffixes to enable collision detection. If parallel test runs collide on cluster-scoped resource names like MigrationPolicy, it's better to know about the collision rather than hide it with unique naming, as confirmed by maintainer dshchedr.

Learnt from: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 3598
File: tests/network/sriov/conftest.py:62-71
Timestamp: 2026-01-28T17:36:14.188Z
Learning: In the RedHatQE/openshift-virtualization-tests repository, sanity checks validate that the cluster supports at least one IP family (IPv4 or IPv6) before SR-IOV tests run. Therefore, defensive guards checking for empty IP addresses in SR-IOV VM fixtures (like `sriov_vm` in tests/network/sriov/conftest.py) are not necessary—if neither `ipv4_supported_cluster` nor `ipv6_supported_cluster` is True, the cluster is considered broken and will fail sanity validation.

Learnt from: vamsikrishna-siddu
Repo: RedHatQE/openshift-virtualization-tests PR: 2199
File: tests/storage/test_online_resize.py:108-113
Timestamp: 2025-09-28T14:43:07.181Z
Learning: In the openshift-virtualization-tests repo, PR `#2199` depends on PR `#2139` which adds architecture-specific OS_FLAVOR attributes to the Images.Cirros class (OS_FLAVOR_CIRROS for x86_64/ARM64, OS_FLAVOR_FEDORA for s390x), enabling conditional logic based on the underlying OS flavor in tests.

Learnt from: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 3588
File: tests/network/network_policy/libnetpolicy.py:20-33
Timestamp: 2026-01-26T16:22:48.229Z
Learning: In tests/network/network_policy/libnetpolicy.py, user azhivovk prefers explicit for-loops over list comprehensions when building the _ports list in the ApplyNetworkPolicy.to_dict() method, as they find the explicit loop more readable.

Learnt from: vsibirsk
Repo: RedHatQE/openshift-virtualization-tests PR: 2045
File: tests/virt/cluster/vm_lifecycle/conftest.py:46-47
Timestamp: 2025-09-15T06:49:53.478Z
Learning: In the openshift-virtualization-tests repo, large fixture refactoring efforts like the golden image data source migration are handled incrementally by directory/team ownership. The virt/cluster directory is handled separately from virt/node, tests/infra, tests/storage, etc., with each area managed by relevant teams in follow-up PRs.

Learnt from: SamAlber
Repo: RedHatQE/openshift-virtualization-tests PR: 2507
File: tests/virt/node/general/test_vmi_reset.py:26-29
Timestamp: 2025-11-19T08:13:30.263Z
Learning: In the openshift-virtualization-tests repository, user SamAlber prefers not to define fixture dependencies by chaining fixtures (adding one fixture as a parameter to another). Instead, all fixture dependencies should be explicitly declared as parameters in the test method itself, relying on parameter order to control execution sequence.

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