cucumber software package provides acceptance testing framework, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cucumber
cucumber is installed in your system.
Make ensure the cucumber package were installed using the commands given below,
$ sudo dpkg-query -l | grep cucumber *
You will get with cucumber package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Ruby |
| Package | cucumber |
| Version | 2.4.0-2 |
| Description | acceptance testing framework |
| Sub Section | Ruby |