Another method I will mention is using a paid service. Using these online paid tools may bring your more detailed information on the email addresses gathered with quality data. One example of this would be a site like CoCoFinder They have both free and paid services. People would use services like cocofinder to perhaps dig out more information on their customers, who purchases, their buying habits etc. - Source: dev.to / over 1 year ago

React Testing Library - https://testing-library.com/docs/react-testing-library/intro/. - Source: dev.to / about 2 months ago

React Testing Library: provides utilities to make testing easier. - Source: dev.to / 3 months ago

Since we are testing the front-end, we will also rely on the React Testing Library, which provides support for rendering components and custom queries in the DOM. - Source: dev.to / 3 months ago

It’s not to say 100% coverage is the way to go, but at least some functional testing with something like react-testing-library and cypress can save a lot of time. - Source: dev.to / 6 months ago

If you happen to be using React Testing Library in your project, you'll need to keep the jsdom dev dependency installed. - Source: dev.to / 7 months ago