libahven4-dev software package provides Unit test library for Ada (development), you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libahven4-dev
libahven4-dev is installed in your system.
Make ensure the libahven4-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libahven4-dev *
You will get with libahven4-dev package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Library development |
| Package | libahven4-dev |
| Version | 2.4+repack-1+b1 [s390x], 2.4+r |
| Description | Unit test library for Ada (development) |
| Sub Section | Libdevel |