Add missing test coverage for some parts of the code

[psiman-wandera]

Name of feature:

Adding test coverage for some parts of step-ca

Pain or issue this feature alleviates:

Adds missing test coverage of critical parts of the the code

Why is this important to the project (if not answered above):

N/A

Is there documentation on how to use this feature? If so, where?

Not needed for this IMO.

In what environments or workflows is this feature supported?

All

In what environments or workflows is this feature explicitly NOT supported (if any)?

Supporting links/other PRs/issues:

💔Thank you!