NO-JIRA: Add a serial e2e test

[hongkailiu]

No description provided.

[openshift-ci-robot]

@hongkailiu: This pull request explicitly references no jira issue.

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[coderabbitai]

Walkthrough

A new serial test case was added to the cluster-version-operator suite by inserting a matching test entry in the payload manifest and a corresponding test implementation in the test source file; the new entry mirrors the structure of existing tests.

Changes

Cohort / File(s)	Summary
Serial test addition — manifest & test .openshift-tests-extension/openshift_payload_cluster-version-operator.json, test/cvo/cvo.go	Added a new serial test named "cluster-version-operator-tests should support passing serial tests [Serial]" — new test object in the payload manifest and a matching g.It test in test/cvo/cvo.go, structure mirrors existing entries (labels, source, lifecycle, environmentSelector, resources).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

✨ Finishing touches

• 📝 Generate docstrings

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[hongkailiu]

Although the job failed, it showed what I need: the new job is not included in the test.

$ curl -s https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/pr-logs/pull/openshift_cluster-version-operator/1306/pull-ci-openshift-cluster-version-operator-main-e2e-agnostic-ovn/2015998065680322560/artifacts/e2e-agnostic-ovn/openshift-e2e-test/artifacts/e2e.log | grep 'should support passing'
started: 1/279/428 "[Jira:\"Cluster Version Operator\"] cluster-version-operator-tests should support passing tests"
passed: (0s) 2026-01-27T06:01:10 "[Jira:\"Cluster Version Operator\"] cluster-version-operator-tests should support passing tests"

That means the "Qualifiers" work.

cluster-version-operator/cmd/cluster-version-operator-tests/main.go

Lines 26 to 27 in e444b8e

	Qualifiers: []string{
	`!(name.contains("[Serial]") || name.contains("[Slow]"))`,

I will see if this job is included in the job to be added by this.

[hongkailiu]

/retest-required
/verified by @hongkailiu

[openshift-ci-robot]

@hongkailiu: This PR has been marked as verified by @hongkailiu.

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In response to this:

/retest-required
/verified by @hongkailiu

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[openshift-ci]

@hongkailiu: all tests passed!

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[DavidHurta]

/lgtm
/hold

Holding in case we decide to run the openshift/conformance/serial test suite and not the openshift/cluster-version-operator/conformance/serial test suite (referencing https://github.com/openshift/release/pull/73934/changes#r2732559124).

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: DavidHurta, hongkailiu

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