Creating a simple download torrent unittest (with 2 nodes, on a single machine)

[bsergean]

I would like to create a simple torrent unittest ; I'm going to use the wrong terminology for a second and use client + server which is wrong but doing it anyway. With http I would start an http server that serve a file (find a free port etc...), download it with an http client and validate it.

Now things gets interesting with bittorrent :) / I tried reading a couple of articles (like this one https://blog.jse.li/posts/torrent/) to see all steps.

I have put together in a github repo utility code to fetch a torrent (by url) and then downloading it, and a test case that use that function, but first does 'something' to simulate the tracker + eveything done on the other end of the download ...

https://github.com/bsergean/torrent_download

The test file is a bit large but I tried to comment it -> https://github.com/bsergean/torrent_download/blob/master/torrent_download_test.go

If someone can give me steps toward the right path it would be awesome.

• I'm a bit lost between 'annoucing' the torrent.
• I'm using utility code to generate the torrent, by populating the meta-info fields.
• I think I must run a tracker, to simulate the current 'servers' I need to emulate in my unittests, I saw full blown projects (chihaya) that do that, but maybe I could start with something simpler ?

I can clarify things too, I understand this is a big ask.

THANKS !