TestR - Continuous testing tool for Ruby
https://github.com/sunaku/testr#readme

--------------------------------------------------------------------
What is it?
--------------------------------------------------------------------

TestR is a continuous testing tool for Ruby that efficiently
detects and tests changes in your Ruby application & test suite:

  1. Absorbs test execution overhead into the master Ruby process.
  2. Forks to run your test files in parallel and without overhead.
  3. Avoids running unchanged tests inside changed test files.

--------------------------------------------------------------------
What is new?
--------------------------------------------------------------------

New features:

  * Add ability to run `testr rails`
    without needing a `.testr.rb` file.

  * testr(1) no longer shows command menu
    at startup.  Press ENTER to see it.

  * testr(1) now notifies you before
    absorbing overhead at startup.

Bug fixes:

  * testr(1) now accepts death silently
    when Control-C is pressed.

-- 
Most people feel that everyone is entitled to their opinion.