Figure out automated testing

[keyserj]

Is your feature request related to a problem? Please describe. There's a lot of value in automated testing for things like preventing regressions and documenting code usage. Consider if we should add automate tests such as

• [ ] component tests
• [x] unit tests
• [ ] screenshot tests
• [x] API tests
• [ ] system tests

Additional context It may be entirely possible that it still isn't worth adding some of these tests yet.

Technical ideas Storybook to help with component, screenshot testing?

[keyserj]

related #244