Let's think of Redux as a situation as to where you go to the bank to get some money.

• The Vault( where all the money is stored) is the redux store( stores the app state)
• The Money is the State.
• You asking for the money is the Action, it always has a type( What you want)
• The cashier getting you the money is the reducer.
• This process is called dispatching an action

We can test redux using JEST even though the process is a bit different than testing React since redux has pure functions.