Set log level correctly

[RohanM]

Description of Change

The order of operations meant that previously when the LOG_LEVEL environment value was set, its value was ignored and instead we always set the log level to debug. This PR adds tests and fixes the bug.

Checklist

• [x] Ran npm run lint and updated code style accordingly
• [x] npm run test passes
• [x] PR has a description and all contributors/stakeholder are noted/cc'ed
• [x] tests are updated and/or added to cover new code
• [ ] relevant documentation is changed and/or added