Allow to automatize the tests

[lhauspie]

It could be nice to test the docker image before pushing it to Docker Hub.

The first test I imagined is:

• run the docker image with a volume
• upload a file through FTP protocol
• check the file is in the local folder corresponding to the volume

I don't really know what technical component to use to do that.
It could be bash test, pytest, junit or something else.

This automatization has to be done with GitHub Action.

[MawsFr]

I'm going to look up to https://github.com/testcontainers/testcontainers-node

Is it a problem if I write tests in js ? It has become my main programming language 😅 #shameOnMe

[MawsFr]

I made this PR : #8
Don't hesitate if you want me to improve it.