add more tests

[OlivierJM]

This is still open for discussion on which testing tool to go with, react-testing-library seems like a good option to use.

[YoramGondwe]

If you are using react-testing-library i could help i have some experience using it for testing

[OlivierJM]

It is not implemented yet so I cold definitely add it to get some help, or if you have some time you can go ahead and set it up.