Minitest Snail
Prints a list of tests that take too long.
Installation
gem install minitest-snail
Usage
Minitest Snail can be enabled from the command line using the max-duration parameter:
ruby test/example_test.rb --max-duration 2
This would print out a list of any tests taking longer than 2 seconds to run:
# Running:
....
Finished in 5.001143s
4 runs, 7 assertions, 0 failures, 0 errors, 0 skips
2 slow tests.
0) ExampleTest#test_alpha: 2.30 s
1) ExampleTest#test_beta: 2.11 s
If you don't run your tests directly, you can programmatically enable Minitest Snail:
Minitest::SnailReporter.enable!
You can also configure it using enable!:
Minitest::SnailReporter.enable! :max_duration => 2.5
If you are using Rails, your test/test_helper.rb file is good place to do this initialization.