Possible to "fail fast" when running rake test w/ minitest 5?

Question

Is it possible to configure 'rake test' to stop running tests as soon as it hits a failure/exception?

My setup:

• Rails 4.1
• Minitest 5.3.4
• Tapout (for formatting)

I'd like to start the test suite and immediately stop if a test fails -- the default behavior is to keep running all the tests which, in some cases, is too much data (especially one small bug causes a ton of tests to suddenly fail.)

I had a nice little setup going with the older version of Minitest (4.x) and the Turn gem by following this gist: (Add a simple fail-fast option to minitest/turn/minitest-rails), but I'm working on a new Rails 4.1 app right now and Turn isn't compatible with Minitest 5 (yet).

Any thoughts?

Answer 1

If you are using Rails 5, try rails test -f will 'fail fast'. It means abort test run of first failure or error if you run rails test -h

Answer 2

You can use this new gem with Rails 4.2 and and Minitest 5.6.1: minitest-fail-fast