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net: Drop cluster net stack fixtures#4365

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rnetser merged 1 commit intoRedHatQE:mainfrom
azhivovk:drop_cluster_network_fixtures
Apr 14, 2026
Merged

net: Drop cluster net stack fixtures#4365
rnetser merged 1 commit intoRedHatQE:mainfrom
azhivovk:drop_cluster_network_fixtures

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@azhivovk azhivovk commented Apr 6, 2026

Both ipv4_supported_cluster and ipv6_supported_cluster fixtures are used frequently as parameters.
For cleaner data usage, these fixtures can be removed and replaced with cached helper functions that retrieve the cluster network stack once.

jira-ticket: https://redhat.atlassian.net/browse/CNV-81266

Summary by CodeRabbit

  • Refactor

    • Centralized and cached IPv4/IPv6 capability detection so runtime IP-family support is resolved consistently at call time.
  • Tests

    • Updated test fixtures, helpers and VM/cloud-init generation to use the centralized detection at runtime rather than injected IP-support flags, simplifying fixture signatures and making address/interface behavior deterministic.

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📝 Walkthrough

Walkthrough

Replaced parameterized cluster IP-family check with two cached no-arg helpers ipv4_supported_cluster() and ipv6_supported_cluster() and an internal _cluster_ip_family_supported; updated tests and test helpers to call these helpers at runtime instead of receiving boolean fixtures.

Changes

Cohort / File(s) Summary
Core cluster utilities
libs/net/cluster.py
Removed public cluster_ip_family_supported(ip_family); added internal _cluster_ip_family_supported(ip_family) and two cached public helpers ipv4_supported_cluster() and ipv6_supported_cluster() used by runtime callers.
Top-level test config
tests/conftest.py
Removed session-scoped boolean fixtures for IPv4/IPv6; imported and invoked ipv4_supported_cluster()/ipv6_supported_cluster() directly in cluster_info, running_vm_upgrade_a, and running_vm_upgrade_b.
Network-wide fixtures
tests/network/conftest.py
Removed boolean fixture params (including dual_stack_cluster); ipv6_primary_interface_cloud_init_data and network_sanity now call helpers at runtime.
Connectivity fixtures & utils
tests/network/connectivity/conftest.py, tests/network/connectivity/utils.py
Dropped IPv4/IPv6 fixture params from VM fixtures; secondary_interfaces_cloud_init_data(host_id) signature changed to remove boolean flags and calls helpers internally to decide address families.
L2 bridge stability helpers
tests/network/l2_bridge/vmi_interfaces_stability/conftest.py, .../lib_helpers.py
Removed IPv4/IPv6 params from running_linux_bridge_vm and helper functions; IP-family decisions (primary/secondary iface IPs and dhcp4) now use ipv4_supported_cluster()/ipv6_supported_cluster().
Localnet utilities
tests/network/localnet/conftest.py, tests/network/localnet/liblocalnet.py
Removed ipv4_included/ipv6_included args; ip_addresses_from_pool now queries ipv4_supported_cluster()/ipv6_supported_cluster() to include addresses.
SR-IOV fixtures
tests/network/sriov/conftest.py, tests/network/sriov/libsriov.py
Removed IPv4/IPv6 boolean fixture params; sriov_cloud_init_data signature updated to call helpers internally for address inclusion.
Observability tests
tests/observability/metrics/test_general_metrics.py
Removed ipv6_single_stack_cluster fixture param; test computes expected metric by calling is_ipv6_single_stack_cluster() at assertion time.
Network service tests
tests/network/network_service/conftest.py
expected_num_families_in_service now computes dual-stack eligibility by checking ip_family_policy and runtime ipv4_supported_cluster() & ipv6_supported_cluster() rather than a dual_stack_cluster fixture.
IP utilities
libs/net/ip.py
random_ip_addresses_by_family signature simplified to remove explicit ipv4/ipv6 booleans; function now consults ipv4_supported_cluster()/ipv6_supported_cluster() internally.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

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🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 13.95% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (2 passed)
Check name Status Explanation
Title check ✅ Passed The title concisely and clearly describes the main change: removing cluster network stack fixtures and replacing them with cached helper functions.
Description check ✅ Passed The description addresses the core motivation (cleaner data usage via cached helpers) and references the Jira ticket, but lacks detail on implementation scope and affected components.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@tests/network/l2_bridge/vmi_interfaces_stability/lib_helpers.py`:
- Around line 58-60: In primary_iface_cloud_init(), the guard currently checks
the function object ipv6_supported_cluster instead of calling it; change the
conditional to call ipv6_supported_cluster() so the code reads if not
ipv6_supported_cluster(): return None, matching the other uses of
ipv6_supported_cluster() and ipv4_supported_cluster() and ensuring IPv6-disabled
clusters return None.
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📥 Commits

Reviewing files that changed from the base of the PR and between 50470d6 and 9b100b2.

📒 Files selected for processing (11)
  • libs/net/cluster.py
  • tests/conftest.py
  • tests/network/conftest.py
  • tests/network/connectivity/conftest.py
  • tests/network/connectivity/utils.py
  • tests/network/l2_bridge/vmi_interfaces_stability/conftest.py
  • tests/network/l2_bridge/vmi_interfaces_stability/lib_helpers.py
  • tests/network/localnet/conftest.py
  • tests/network/localnet/liblocalnet.py
  • tests/network/sriov/conftest.py
  • tests/observability/metrics/test_general_metrics.py
💤 Files with no reviewable changes (1)
  • tests/network/sriov/conftest.py

Comment thread tests/network/l2_bridge/vmi_interfaces_stability/lib_helpers.py
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azhivovk commented Apr 6, 2026

Change: Adjust usage of cached helper

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coderabbitai bot previously approved these changes Apr 9, 2026
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/verified

Single-stack IPv6 cluster with cnv-4.22:
uv run pytest --verbose -rs -s -o log_cli=true --leftovers-collector --tb=native --skip-deprecated-api-test --cluster-sanity-skip-storage-check tests/observability/metrics/test_general_metrics.py::TestVirtHCOSingleStackIpv6::test_metric_kubevirt_hco_single_stack_ipv6
Result: 1 passed, 1 deselected in 59.91s

Dual-stack BM with cnv-4.22:
uv run pytest --verbose -rs -s -o log_cli=true --leftovers-collector --tb=native --skip-deprecated-api-test --cluster-sanity-skip-storage-check tests/network/connectivity/ tests/network/l2_bridge/ tests/network/localnet/ tests/network/network_service/ -m "not dpdk" tests/network/sriov/
Result: 62 passed, 2 deselected, 154 warnings, 28 subtests passed, 4 quarantined in 12269.65s (3:24:29)

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Test execution plan request details

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CRITICAL: Before setting "Run smoke tests: True", you MUST use shell scripts to:
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Comment thread libs/net/cluster.py
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coderabbitai bot commented Apr 13, 2026

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🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# 1. Find all smoke-marked tests
echo "=== SMOKE TESTS ==="
rg "pytest.mark.smoke" --type=py -l

# 2. Check if smoke tests import from changed libs
echo ""
echo "=== SMOKE TESTS importing from libs.net.cluster or using ipv4/ipv6_supported_cluster ==="
rg "pytest.mark.smoke" --type=py -l | xargs -I{} grep -l "ipv4_supported_cluster\|ipv6_supported_cluster\|libs.net.cluster\|liblocalnet\|libsriov\|lib_helpers" {} 2>/dev/null

# 3. Check if any smoke test files import from the changed files
echo ""
echo "=== SMOKE tests with network connectivity/localnet/sriov imports ==="
rg "pytest.mark.smoke" --type=py -l | xargs -I{} grep -l "connectivity\|localnet\|sriov\|l2_bridge" {} 2>/dev/null

# 4. Check if conftest.py changes affect smoke tests - look at what smoke tests use from conftest
echo ""
echo "=== Tests with smoke marker ==="
rg "pytest.mark.smoke" --type=py -B2 | grep "def test_" | head -30

# 5. Check SR-IOV fixture changes - do they have existence checks?
echo ""
echo "=== SR-IOV fixture existence checks ==="
rg "sriov_vm1|sriov_vm2|sriov_vm3|sriov_vm4|sriov_vm_migrate" tests/network/sriov/conftest.py -A5 -B2

# 6. Get first changed line of first file (libs/net/cluster.py)
echo ""
echo "=== First changed file info ==="
git diff origin/main...HEAD --name-only | head -5
git diff origin/main...HEAD -- libs/net/cluster.py | head -20

Length of output: 4036


🏁 Script executed:

#!/bin/bash
# Get the latest commit SHA on the PR branch to post inline review comment
PR_NUMBER=4365
REPO="RedHatQE/openshift-virtualization-tests"

# Get PR details including head SHA
gh api repos/$REPO/pulls/$PR_NUMBER --jq '{head_sha: .head.sha, base_sha: .base.sha}'

# Get the diff to find the exact first changed line position in libs/net/cluster.py
gh api repos/$REPO/pulls/$PR_NUMBER/files --jq '.[] | select(.filename == "libs/net/cluster.py") | {filename, patch: .patch[0:500]}'

Length of output: 675


🏁 Script executed:

#!/bin/bash
REPO="RedHatQE/openshift-virtualization-tests"
PR_NUMBER=4365
COMMIT_SHA="18b9a42821ac776fafade9a01d7b55959470bffe"

# Post inline review comment on first changed line of libs/net/cluster.py (line 12, RIGHT side)
gh api repos/$REPO/pulls/$PR_NUMBER/comments \
  --method POST \
  -f commit_id="$COMMIT_SHA" \
  -f path="libs/net/cluster.py" \
  -f side="RIGHT" \
  -F line=12 \
  -f body="**Test Execution Plan**

- **Run smoke tests: False**

**Tests to verify:**
- \`tests/observability/metrics/test_general_metrics.py::TestVirtHCOSingleStackIpv6::test_metric_kubevirt_hco_single_stack_ipv6\`
- \`tests/network/connectivity/\`
- \`tests/network/l2_bridge/\`
- \`tests/network/localnet/\`
- \`tests/network/network_service/\`
- \`tests/network/sriov/ -m \"not dpdk\"\` _(SR-IOV hardware cluster required)_"

Length of output: 3149



🧠 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: 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: 2025-12-16T20:11:03.645Z
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: 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: 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: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 4147
File: tests/network/upgrade/test_upgrade_network.py:166-177
Timestamp: 2026-03-19T10:37:02.008Z
Learning: In the openshift-virtualization-tests repository, unused fixture parameters in test methods (e.g., `bridge_on_one_node` in `tests/network/upgrade/test_upgrade_network.py`) that exist purely for pytest dependency ordering should not be flagged for removal, and no follow-up issues need to be opened for them. This is an intentional pattern, consistent with the analogous convention for fixture definitions in this codebase.

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: 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: 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: 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: dshchedr
Repo: RedHatQE/openshift-virtualization-tests PR: 4118
File: utilities/database.py:0-0
Timestamp: 2026-03-17T01:32:13.674Z
Learning: In RedHatQE/openshift-virtualization-tests, maintainer dshchedr prefers CodeRabbit to post targeted inline comments on the Files changed tab for each applicable location rather than aggregating multiple issues into a single discussion thread.

Learnt from: dshchedr
Repo: RedHatQE/openshift-virtualization-tests PR: 4118
File: utilities/database.py:0-0
Timestamp: 2026-03-17T01:32:13.674Z
Learning: In RedHatQE/openshift-virtualization-tests, maintainer dshchedr prefers CodeRabbit to post targeted inline comments on the Files Changed tab at each applicable location rather than aggregating multiple issues into a single PR discussion thread reply.

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: 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: 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: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 3974
File: tests/network/localnet/test_ovs_bridge.py:30-43
Timestamp: 2026-03-12T17:49:12.363Z
Learning: In `tests/network/localnet/test_ovs_bridge.py` and `tests/network/localnet/test_jumbo_frames.py`, predicates and assertions checking for a specific count or non-empty list of `filter_link_local_addresses(iface.ipAddresses)` results after `lookup_iface_status` are redundant. VMs in localnet tests are provisioned with explicit IPv4/IPv6 addresses via `ip_addresses_from_pool`, and session-scoped sanity checks guarantee at least one IP family is active. Do not suggest count-based or empty-guard predicates on `ipAddresses` in localnet OVS bridge or jumbo frame tests.

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Thanks.

I had only a few comments, see inline.

Comment thread tests/conftest.py Outdated
Comment thread libs/net/ip.py
Comment thread tests/network/localnet/liblocalnet.py
Both ipv4_supported_cluster and ipv6_supported_cluster
fixtures are used frequently as parameters.
For cleaner data usage, these fixtures can be removed
and replaced with cached helper functions that retrieve
the cluster network stack once.

Signed-off-by: Asia Khromov <azhivovk@redhat.com>
@azhivovk
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Change:

  • Remove unused fixture
  • Add documentation

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Thanks.

/approve

@azhivovk
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/verified
#4365 (comment)

@openshift-virtualization-qe-bot-3
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@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 Test Execution Plan with the smoke tests recommendation.
Do NOT submit a formal review - just post the inline comment directly.

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, 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
    • Changes to fixtures or utilities imported by smoke tests
    • Changes to conftest.py files that may affect smoke test execution
    • Changes to core infrastructure code (utilities/, libs/) that smoke tests depend on

Your deliverable:
Your change request comment will be based on the following requirements:

Test Execution Plan

  • Run smoke tests: True / False (Based on your smoke test impact analysis - True if any changes may affect smoke tests)
  • 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 specific marker(s) can be used to cover multiple cases.

Guidelines:

  • Include only tests directly affected by the changes
  • Use a full file path only if ALL tests in that file require verification
  • Use file path + test name if only specific tests are needed
  • If a test marker can cover multiple files/tests, provide the marker
  • Balance coverage vs over-testing - Keep descriptions minimal

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 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
  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: 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"

Comment thread libs/net/cluster.py
@coderabbitai
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coderabbitai bot commented Apr 13, 2026

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

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
REPO="RedHatQE/openshift-virtualization-tests"
PR_NUMBER=4365

# Get latest commit SHA
gh api repos/$REPO/pulls/$PR_NUMBER --jq '{head_sha: .head.sha}'

# Get changed files with patch info
gh api repos/$REPO/pulls/$PR_NUMBER/files --jq '[.[] | {filename, patch: .patch[0:300]}]' | head -60

# Check smoke tests vs changed libs
echo "=== SMOKE TESTS ==="
rg "pytest.mark.smoke" --type=py -l

echo ""
echo "=== Smoke tests using libs.net.cluster or related ==="
rg "pytest.mark.smoke" --type=py -l | xargs -I{} grep -l "ipv4_supported_cluster\|ipv6_supported_cluster\|libs.net.cluster" {} 2>/dev/null || true

Length of output: 6669


🏁 Script executed:

#!/bin/bash
# Check what the smoke test imports from libs.net.cluster
grep -n "libs.net.cluster\|ipv4_supported_cluster\|ipv6_supported_cluster\|is_ipv6_single_stack" tests/storage/cdi_upload/test_upload_virtctl.py | head -20

# Get the exact line number for the first changed line in libs/net/cluster.py
# The patch shows @@ -9,13 +9,23 @@ meaning line 12 is the first new/changed line on the RIGHT side
# Post inline comment
REPO="RedHatQE/openshift-virtualization-tests"
PR_NUMBER=4365
COMMIT_SHA="01aa9831debb7e98f1e7a032eb7ea457f17dbe2b"

gh api repos/$REPO/pulls/$PR_NUMBER/comments \
  --method POST \
  -f commit_id="$COMMIT_SHA" \
  -f path="libs/net/cluster.py" \
  -f side="RIGHT" \
  -F line=12 \
  -f body="**Test Execution Plan**

- **Run smoke tests: False**

**Tests to verify:**
- \`tests/observability/metrics/test_general_metrics.py::TestVirtHCOSingleStackIpv6::test_metric_kubevirt_hco_single_stack_ipv6\`
- \`tests/network/connectivity/\`
- \`tests/network/l2_bridge/\`
- \`tests/network/localnet/\`
- \`tests/network/network_service/\`
- \`tests/network/sriov/ -m \"not dpdk\"\` _(SR-IOV hardware cluster required)_"

Length of output: 3253



🧠 Learnings used
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: 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: dshchedr
Repo: RedHatQE/openshift-virtualization-tests PR: 4118
File: utilities/database.py:0-0
Timestamp: 2026-03-17T01:32:13.674Z
Learning: In RedHatQE/openshift-virtualization-tests, maintainer dshchedr prefers CodeRabbit to post targeted inline comments on the Files Changed tab at each applicable location rather than aggregating multiple issues into a single PR discussion thread reply.

Learnt from: dshchedr
Repo: RedHatQE/openshift-virtualization-tests PR: 4118
File: utilities/database.py:0-0
Timestamp: 2026-03-17T01:32:13.674Z
Learning: In RedHatQE/openshift-virtualization-tests, maintainer dshchedr prefers CodeRabbit to post targeted inline comments on the Files changed tab for each applicable location rather than aggregating multiple issues into a single discussion thread.

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: 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: 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: 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: 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: 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: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 4147
File: tests/network/upgrade/test_upgrade_network.py:166-177
Timestamp: 2026-03-19T10:37:02.008Z
Learning: In the openshift-virtualization-tests repository, unused fixture parameters in test methods (e.g., `bridge_on_one_node` in `tests/network/upgrade/test_upgrade_network.py`) that exist purely for pytest dependency ordering should not be flagged for removal, and no follow-up issues need to be opened for them. This is an intentional pattern, consistent with the analogous convention for fixture definitions in this codebase.

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: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 2119
File: tests/network/localnet/conftest.py:372-387
Timestamp: 2025-11-26T16:03:07.813Z
Learning: In the openshift-virtualization-tests repository, pytest fixtures that declare other fixtures as parameters purely for dependency ordering (without referencing them in the function body) should not be modified to silence Ruff ARG001 warnings. This is an idiomatic pytest pattern for ensuring setup order, and the team prefers to leave such fixtures unchanged rather than adding defensive comments or code to suppress linter warnings.

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: dshchedr
Repo: RedHatQE/openshift-virtualization-tests PR: 1716
File: tests/virt/node/workload_density/test_swap.py:71-85
Timestamp: 2025-08-09T01:46:48.039Z
Learning: In the openshift-virtualization-tests repository, user dshchedr prefers that all test setup fixtures be explicitly declared as parameters in the test method itself rather than chaining fixtures through dependencies. This makes all setup steps visible in one place at the test method level, improving test readability and making dependencies explicit, even if a fixture isn't directly used within another fixture's implementation.

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.

Learnt from: jpeimer
Repo: RedHatQE/openshift-virtualization-tests PR: 954
File: tests/storage/storage_migration/conftest.py:264-269
Timestamp: 2025-05-28T10:50:56.122Z
Learning: In the openshift-virtualization-tests codebase, cleanup pytest fixtures like `deleted_old_dvs_of_stopped_vms`, `deleted_completed_virt_launcher_source_pod`, and `deleted_old_dvs_of_online_vms` do not require yield statements. These fixtures perform cleanup operations and work correctly without yielding values.

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: 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: 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: 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: 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: 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: 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: azhivovk
Repo: RedHatQE/openshift-virtualization-tests PR: 3974
File: tests/network/localnet/test_ovs_bridge.py:30-43
Timestamp: 2026-03-12T17:49:12.363Z
Learning: In `tests/network/localnet/test_ovs_bridge.py` and `tests/network/localnet/test_jumbo_frames.py`, predicates and assertions checking for a specific count or non-empty list of `filter_link_local_addresses(iface.ipAddresses)` results after `lookup_iface_status` are redundant. VMs in localnet tests are provisioned with explicit IPv4/IPv6 addresses via `ip_addresses_from_pool`, and session-scoped sanity checks guarantee at least one IP family is active. Do not suggest count-based or empty-guard predicates on `ipAddresses` in localnet OVS bridge or jumbo frame tests.

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.

@rnetser
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rnetser commented Apr 14, 2026

/approve
/lgtm

@openshift-virtualization-qe-bot-3
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New container for quay.io/openshift-cnv/openshift-virtualization-tests:latest published

@azhivovk
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/cherry-pick cnv-4.21

@openshift-virtualization-qe-bot
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Manual cherry-pick is needed
Cherry pick failed for 9ec6aeb to cnv-4.21:
To cherry-pick run:

git remote update
git checkout cnv-4.21
git pull origin cnv-4.21
git checkout -b drop_cluster_network_fixtures-cnv-4.21
git cherry-pick 9ec6aeb897038aaef76431139c0c32af117fc33f
# If the above fails with 'is a merge but no -m option', run:
# git cherry-pick -m 1 9ec6aeb897038aaef76431139c0c32af117fc33f
git push origin drop_cluster_network_fixtures-cnv-4.21

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