clutter-1.0-tests software package provides 1.20.0-1, 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 clutter-1.0-tests
clutter-1.0-tests is installed in your system.
Make ensure the clutter-1.0-tests package were installed using the commands given below,
$ sudo dpkg-query -l | grep clutter-1.0-tests *
You will get with clutter-1.0-tests package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Miscellaneous |
| Package | clutter-1.0-tests |
| Version | 1.20.0-1 |
| Description | 1.20.0-1 |
| Sub Section | Misc |