Description

This PR started out as an exploratory mission to coerce the UnitControl component to update the unit value based on incoming changes in the value.

So for example, if the unit is set to px, but the incoming value is 22em, the component would parse and validate the new unit (em) and call setUnit to update the internal state.

Hoorah!

Well, it turns out this was all a bit superfluous seeing that we can pass the updated unit value using the components unit prop. 🤦

Still, along the way we added a few tests for getValidParsedUnit() so it seemed a shame to abandon them to the cloud, where they would linger, alone and forgotten, like a wet sock in a suburban laundromat.

How has this been tested?

Run the tests:

npm run test-unit packages/components/src/unit-control/test/utils.js

Types of changes

Adding unit tests.

Checklist:

• My code is tested.
• My code follows the WordPress code style.