HOW TO TEST JAVASCRIPT CODE USING JEST - TEST PURE FUNCTIONS | MOCK GLOBAL VARIABLES | TEST METHODS

Here I show how to test your Javascript code. We will test pure functions (they are the easiest to test, because they don't have side effects). Then we test a function with side effects and we mock a global function using Jest. And finally we test an object method. We also talk about AAA (Arrange Act Assert) pattern here.

Code: https://github.com/satansdeer/test-example DIscord Server: https://discord.gg/KPh8Vvb Free React Testing Checklist: http://eepurl.com/c_8tzP

#testing #javascript #jest #satansdeer ... https://www.youtube.com/watch?v=_6xgbpOaLxA