Increase kubeactions patch coverage

[frank-spano]

What does this PR do?

Adds targeted unit tests to cover the recently changed kubeactions feature behavior and DatadogAgent test builder behavior so the PR patch is fully exercised.

Motivation

Patch coverage for PR #3099 showed uncovered lines in kubeactions feature no-op manager methods and the new KubeActions builder helpers. This change ensures those modified lines are executed and asserted by tests.

Additional Notes

Changes are intentionally limited to tests only.

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

Describe your test plan

• go test ./internal/controller/datadogagent/feature/kubeactions ./pkg/testutils
• Added test coverage for:
  • internal/controller/datadogagent/feature/kubeactions/feature.go no-op manager methods (ManageSingleContainerNodeAgent, ManageNodeAgent, ManageClusterChecksRunner, ManageOtelAgentGateway)
  • pkg/testutils/builder.go KubeActions initialization and enabled flag mutation via WithKubeActionsEnabled

Checklist

• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• PR has a milestone or the qa/skip-qa label
• All commits are signed (see: signing commits)

---

PR by Bits - View session in Datadog

Comment @DataDog to request changes

[datadog-official]

View session in Datadog

Bits Code status: ✅ Done

Comment @DataDog to request changes

[datadog-official]

I can only run on private repositories.

[datadog-official]

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 2 Pipeline jobs failed

pull request linter | Check Milestone     

pull request linter | build     

Useful? React with 👍 / 👎

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 0d650f7 | Docs | Datadog PR Page | Give us feedback!}

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.91837% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.76%. Comparing base (19e90a6) to head (0d650f7).
⚠️ Report is 3 commits behind head on frank.spano-kube-actions.

Files with missing lines	Patch %	Lines
...roller/datadogagent/feature/kubeactions/feature.go	95.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@                     Coverage Diff                      @@
##           frank.spano-kube-actions    #3100      +/-   ##
============================================================
+ Coverage                     43.62%   43.76%   +0.13%     
============================================================
  Files                           350      352       +2     
  Lines                         30089    30138      +49     
============================================================
+ Hits                          13127    13190      +63     
+ Misses                        16090    16068      -22     
- Partials                        872      880       +8     

Flag	Coverage Δ
unittests	43.76% <95.91%> (+0.13%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
internal/controller/datadogagent/controller.go	48.00% <ø> (ø)
...ntroller/datadogagent/feature/kubeactions/const.go	100.00% <100.00%> (ø)
...rnal/controller/datadogagentinternal/controller.go	0.00% <ø> (ø)
pkg/testutils/builder.go	2.19% <100.00%> (+2.19%)	⬆️
...roller/datadogagent/feature/kubeactions/feature.go	95.00% <95.00%> (ø)

... and 1 file with indirect coverage changes

---

Continue to review full report in Codecov by Harness.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 19e90a6...0d650f7. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.