Tork - test with fork
https://github.com/sunaku/tork#readme

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Tork runs your tests as they change, in parallel:

  1. Absorbs test execution overhead into a master process.

  2. Forks to inherit overhead and run test files in parallel.

  3. Avoids running unchanged tests inside changed test files.

## Version 18.2.3 (2012-09-26)

Patch:

  * Restored support for building Tork from
    its gemspec under Ruby 1.8.  Thanks to
    Ohno Shin'ichi for reporting this issue
    and contributing a preliminary fix.

  * Add resilience against failed command
    dispatch in `Tork::Server#loop()`.

Other:

  * It's not worth rescuing Interrupt only to exit silently.
    Let the user see stack traces when they press Control-C.

  * Update old comments about SIGCHLD handler, which was
    replaced by reaping threads quite a few releases ago.

  * Use $0 instead of hard-coding the program name.