Add tests for docker image

[joepio]

Todo:

• Make sure the docker container runs and the tests succeed! Currently it does not recognize the tag.

PR Checklist:

• Link to related issues: closes CI: test docker build before deploying #606
• Add changelog entry linking to issue, describe API changes
• Add tests (optional)
• (If new feature) add to description / readme

[codecov-commenter]

Codecov Report

Merging #621 (1582475) into develop (10de059) will not change coverage.
The diff coverage is n/a.

❗ Current head 1582475 differs from pull request most recent head 22aded4. Consider uploading reports for the commit 22aded4 to get more accurate results

@@           Coverage Diff            @@
##           develop     #621   +/-   ##
========================================
  Coverage    65.42%   65.42%           
========================================
  Files           72       72           
  Lines         8026     8026           
========================================
  Hits          5251     5251           
  Misses        2775     2775           

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.