Show runtime for each rspec example

ruby-on-rails tdd rspec rspec-rails
jpemberthy picture jpemberthy · Jan 31, 2011 · Viewed 8.9k times · Source

currently I'm running more than 1k examples and it's taking a long time to complete (more than 20 minutes!!!).

I'd like to identify which examples are the ones taking more time to complete, is there any way to run rspec and return the time each example takes to complete(individually)? I'm using rspec 1.3.0 and rspec-rails 1.2.3

Answer

Pan Thomakos picture Pan Thomakos · Feb 1, 2011

You can use profiling to list your 10 slowest examples:

spec -p spec/*/*_spec.rb --colour --format profile

If you run this on a specific test suite you can get the 10 slowest examples from a smaller subset of examples:

spec -p spec/models/user_spec.rb --format profile

Newer Versions of Rspec

For newer versions of rspec you should use the --profile option:

rspec spec/ --profile         | (shows the 10 slowest examples)
rspec spec/ --profile 2       | (shows the 2  slowest examples)

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