Bump test coverage up to at least 80% where possible

[NickKeller]

Description

Bump test coverage to at least 80% where possible

Fixes # (issue)
Feature # (details)

Type of change

Please delete options that are not relevant.

• Test Coverage increase

How Has This Been Tested?

• Added unit tests

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[coveralls]

Pull Request Test Coverage Report for Build 5904359165

• 0 of 54 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.02%) to 86.035%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controller/testutils/fakemanager.go	0	54	0.0%

Totals
Change from base Build 5871209609:	-0.02%
Covered Lines:	1842
Relevant Lines:	2141

---

💛 - Coveralls

[jaiveerk]

some small questions/ideas but lgtm overall

[OliverMKing]

/ok-to-test sha=e21d3a