Websocket client challenge with jest Unit Test

Steps to run client:

git clone https://github.com/angelocorreia27/demo-socket.git
cd demo-socket
npm install
npm start

or may need to run npm install with --legacy-peer-deps

npm install --legacy-peer-deps

Steps to run server:

git clone https://github.com/and-dzh3/ws-srv

cd ws-srv/
npm install
npm i -g typescript 
./node_modules/.bin/tsc
node ./dist/server/server.js

run test with jest

npm run test