chai software package provides BDD/TDD assertion library for node.js and the browser., you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install chai
chai is installed in your system.
Make ensure the chai package were installed using the commands given below,
$ sudo dpkg-query -l | grep chai *
You will get with chai package name, version, architecture and description in a table
| Distro | Ubuntu 17 |
| Section | Web Software |
| Package | chai |
| Version | 3.5.0+dfsg-1 |
| Description | BDD/TDD assertion library for node.js and the browser. |
| Sub Section | web |