test: add test coverage for pkg/kubelet/status

[ylink-lfs]

What type of PR is this?

/kind cleanup
/sig node
/priority important-longterm

What this PR does / why we need it:

Test coverage increase for kubelet package

Which issue(s) this PR is related to:

Part of #109717

Special notes for your reviewer:

Before the commits were made, the coverage of pkg/kubelet/types module was 86.8%:

➜  kubernetes git:(master) make test WHAT=./pkg/kubelet/status/... KUBE_COVER=y
+++ [0710 09:21:06] Set GOMAXPROCS automatically to 8
+++ [0710 09:21:06] Normalizing Go targets
+++ [0710 09:21:06] Saving coverage output in '/tmp/k8s_coverage/20250710-092106'
+++ [0710 09:21:06] Running tests with code coverage and with -race
∅  pkg/kubelet/status/testing (36ms) (coverage: 0.0% of statements)
✓  pkg/kubelet/status (2.205s) (coverage: 86.8% of statements)

DONE 79 tests in 10.334s
+++ [0710 09:21:17] Combined coverage report: /tmp/k8s_coverage/20250710-092106/combined-coverage.html

This commit increased the coverage to 89.5%:

➜  kubernetes git:(test/kubelet_status_covrage) make test WHAT=./pkg/kubelet/status/... KUBE_COVER=y 
+++ [0710 09:20:13] Set GOMAXPROCS automatically to 8
+++ [0710 09:20:13] Normalizing Go targets
+++ [0710 09:20:14] Saving coverage output in '/tmp/k8s_coverage/20250710-092014'
+++ [0710 09:20:14] Running tests with code coverage and with -race
∅  pkg/kubelet/status/testing (59ms) (coverage: 0.0% of statements)
✓  pkg/kubelet/status (2.446s) (coverage: 89.5% of statements)

DONE 86 tests in 12.026s
+++ [0710 09:20:26] Combined coverage report: /tmp/k8s_coverage/20250710-092014/combined-coverage.html

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

None

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @ylink-lfs. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[Copilot]

Pull Request Overview

This PR increases test coverage in the pkg/kubelet/status package by adding two new sets of unit tests:

• A test ensuring pods in non-terminal phases with a deletion timestamp do not trigger deletion.
• A table-driven test for the NeedToReconcilePodReadiness helper covering various readiness-gate scenarios.

Comments suppressed due to low confidence (1)

pkg/kubelet/status/status_manager_test.go:1507

• [nitpick] The variable logger actually holds a context.Context; consider renaming it to ctx (e.g., ctx, _ := ktesting.NewTestContext(t)) to improve clarity.

	logger, _ := ktesting.NewTestContext(t)

[ylink-lfs]

/assign mrunalp

[ffromani]

/ok-to-test
/priority backlog

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: ylink-lfs
Once this PR has been reviewed and has the lgtm label, please ask for approval from mrunalp. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• pkg/kubelet/OWNERS

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