Add testing #53
Description
It would be useful to add some kind of automated testing so developers using this package are assured. And so we have confidence when publishing a new version.
Some investigation is first needed into the best tool. Below are some requirements needed:
- Tests must run quickly (Cypress is good but can often be very heavy to install and run and can take a while)
- Must test the visuals, I.e. take a screenshot and compare
- Run tests in pipeline