DATAP-1336 Removed all references to Enzyme testing library

[cdmh219]

GitHub Actions has been upgraded to use Node 20, but our CCDB project is on Node 16. As a result, while all of our Enzyme tests are running successfully locally, they are failing in the CI job, due to references to the TextEncoder (as part of the util library) being removed.

As a quick fix, the Enzyme dependencies will be removed, and all of its associated tests will be commented.

Additions

Removals

• enzyme
• enzyme-adapter-react-16
• References to Enzyme in setupTests.js
• Unit tests using Enzyme

Changes

• Code coverage thresholds

Testing

Screenshots

Notes

• Code coverage thresholds have been lowered temporarily, until all tests previously written with Enzyme are replaced with Testing Library.

Todos

• Updating of commented tests using Testing Library
• Changing of code coverage thresholds back to previous numbers

Checklist

• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows the standards laid out in the front end playbook
• Passes all existing automated tests
• New functions include new tests
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged
• Visually tested in supported browsers and devices
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)

[flacoman91]

👍 Good for a stopgap. as you update the tests, we can start to increase the code coverage thresholds in package.json