Binary package “chai” in ubuntu bionic

BDD/TDD assertion library for node.js and the browser.

 Chai is a BDD / TDD assertion library for [node](http://nodejs.org) and the
 browser that can be delightfully paired with any javascript testing framework.
 .
 This library is test framework agnostic.
 .
 Node.js is an event-based server-side JavaScript engine.