Attached, you find the source code for this section. The snapshots are also attached to individual lectures throughout this module (i.e. the lectures to which each snapshot belongs).

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The following resources may be helpful.

• Article on JS Testing: https://academind.com/learn/javascript/javascript-testing-introduction/

• Official Jest Docs: https://jestjs.io/docs/en/getting-started

• Testing with Spies, Stubs & Mocks: https://www.harrymt.com/blog/2018/04/11/stubs-spies-and-mocks-in-js.html