More unit test coverage

## Overview

We should look to ensure that we have unit tests for all of the framework components.

## Requirements

```
compliance/__init__.py 2 0 100%
compliance/check.py 135 48 64%
compliance/config.py 72 26 64%
compliance/controls.py 38 25 34%
compliance/evidence.py 291 162 44%
compliance/fetch.py 45 26 42%
compliance/fix.py 30 0 100%
compliance/locker.py 360 86 76%
compliance/notify.py 538 84 84%
compliance/report.py 102 32 69%
compliance/runners.py 215 164 24%
compliance/scripts/__init__.py 1 1 0%
compliance/scripts/compliance_cli.py 66 66 0%
compliance/utils/__init__.py 1 0 100%
compliance/utils/credentials.py 42 31 26%
compliance/utils/data_parse.py 31 12 61%
compliance/utils/exceptions.py 11 0 100%
compliance/utils/http.py 10 3 70%
compliance/utils/path.py 26 15 42%
compliance/utils/services/__init__.py 1 0 100%
compliance/utils/services/github.py 265 203 23%
compliance/utils/services/pagerduty.py 45 31 31%
compliance/utils/test.py 5 0 100%
------------------------------------------------------------
TOTAL 2332 1015 56%
```

we should be looking to get that to the 90%+ coverage range.

## Approach

- add more unit tests

## Security and Privacy

N/A

## Test Plan

TBD