Projects for Free Code Camp's Front End Librararies certification and some testing exercises https://learn.freecodecamp.org/front-end-libraries/front-end-libraries-projects
The code releating to the ClickCounter and Jotto components are from the Udemy course react testing with jest and enzyme https://www.udemy.com/react-testing-with-jest-and-enzyme and was written by it's instructor Bonnie Schulkin - https://github.com/flyrightsister