ol = `

Test launchers are used to launch your tests in the browser or Node.js with user config. (Karma, Jasmine, Jest, TestCafe, Cypress, webdriverio)
Testing structure providers help you arrange your tests in a readable and scalable way. (Mocha, Jasmine, Jest, Cucumber, TestCafe, Cypress)
Assertion functions are used to check if a test returns what you expect it to return and if its’t it throws a clear exception. (Chai, Jasmine, Jest, Unexpected, TestCafe, Cypress)
Generate and display test progress and summary. (Mocha, Jasmine, Jest, Karma, TestCafe, Cypress)
Mocks, spies, and stubs to simulate tests scenarios, isolate the tested part of the software from other parts, and attach to processes to see they work as expected. (Sinon, Jasmine, enzyme, Jest, testdouble)
Generate and compare snapshots to make sure changes to data structures from previous test runs are intended by the user’s code changes. (Jest, Ava)
Generate code coverage reports of how much of your code is covered by tests. (Istanbul, Jest, Blanket)
Browser Controllers simulate user actions for Functional Tests. (Nightwatch, Nightmare, Phantom, Puppeteer, TestCafe, Cypress)
Visual Regression Tools are used to compare your site to its previous versions visually by using image comparison techniques.
(Applitools, Percy, Wraith, WebdriverCSS)