Add tests for specs/template.go file

[TatianaSelezneva]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

We are missing unit tests for krel obs and this PR attempts to improve coverage
Relevant card from the project board: #3168

Which issue(s) this PR fixes:

It improves unit test coverage for the krel obs

Special notes for your reviewer:

PR includes tests for specs/template.go. It is incremental improvement for obs package tests. We need to add tests to 'archive.go' to complete the suite.

Does this PR introduce a user-facing change?

NONE

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: TatianaSelezneva / name: Tatiana (33f96d8)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: TatianaSelezneva
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[k8s-ci-robot]

Hi @TatianaSelezneva. Thanks for your PR.

I'm waiting for a github.com 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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