Current version is 2.33
Let's try again. I had rewrote from scratch plug-in for IntelliJ Idea (that have free community edition, btw) which is designed to do the following:
1. Tests on all entered tests with one click
2. Inlines files from your library to your source code (inlucding removing of unused code)
3. Generates unit tests for your library based on entered tests.
First version seemed to be not very popular due to complexity of set up - special project, need of click "Run Task" each time before submit, etc.
In new version all this was fixed and, as a bonus, you can now create tasks for whole Codeforces contest (including sample tests already entered for you) by entering contest id.