bash: jest: command not found

Question

• I know I installed jest cause I can see its location and I tried the test they ask after you download it and it was working fine
• Every time I try the jest command it says "bash: jest: command not found." I've seen others recommend ./node_modules/.bin/jest but that still didn't help even if I did use Sudo i still get "No such file or directory" even though i can see that there is a directory in that path.
• I tried npm test and I get an error regarding a package.json
• I saw someone recommend to remove jest and install again with npm install -g jest command but that lead to a series of error about EACCES: permission denied.
• I thought it may have to do w my node version but it's 10.16.0 so I don't think its that.

Honestly, I feel like I'm all over the place tryna figure out why this is happening so any suggestion/help would be appreciated

other "solutions" I've tried are: node_modules/jest/bin/jest reversestring/test.js --watch ./node_modules/.bin/jest steps/test.js --watch

note: revesersestring and steps were exercises I was trying to run jest on

My OS is MAC

Answer 1

I resolved my problem by using Jest Runner extension in VSC.

Answer 2

Running:

npm install --save-dev jest-cli

Will put the jest command into the directory:

node_modules/.bin/

This directory is what is used to run commands via package.json

For example:

"scripts": {
  "test": "jest -i"
},

Will be runnable via:

npm run test

Or:

yarn test

Answer 3

The jest library must be installed globally. Otherwise you need to run it from the absolute path in your node_modules folder. The easiest way to run the jest command is to run an npm script. Like below:

npm test

you can install the jest-cli globally by running:

npm install -g jest-cli