How to run (check num of request dashboard test - test1) (MAC setup):

Set username and password of your infura account in the package.json run task (line 9)

From terminal run:

yarn install
yarn test1 (headless browser) OR yarn test1:debug to see the browser in debug mode

How to run (the rate limit format check - test2):

Install K6 on your machine https://k6.io/docs/getting-started/installation/
Set projectId and projectSecret variables in rateLimitResponseFormat.test.js (lines 10,11) - FYI: atm this test is only focused on the daily rate limit check for the free tier account (100K req/day limit)
Test duration is set to 5m to make sure that the test reaches the 100K daily/request limit
from terminal at root level run k6 run rateLimitResponseFormat.test.js or yarn test2

Ideally with an unlimited account create a new test to verify rate limit in normal conditions (traffic bottleneck when req. load is too high, compared to the requests daily limit covered by prev test)