Running Rails Tests in Parallel

Using the `parallel_tests` gem and running the tests in parallel, the whole suite ran in 39 seconds, rather than the usual 4-5 minutes.

Once we’ve got the gem in main, this is how to use it:

rake parallel:create
rake parallel:prepare
RAILS_ENV=test rake parallel:spec

(The reason we need to explicitly set the rails env in the last step is due to an issue discussed here.)

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Running Rails Tests in Parallel

Using the parallel_tests gem and running the tests in parallel, the whole suite ran in 39 seconds, rather than the usual 4-5 minutes.

Who are Dragon Drop?

Ready to get in touch and see how we can help drive you forwards?

Using the `parallel_tests` gem and running the tests in parallel, the whole suite ran in 39 seconds, rather than the usual 4-5 minutes.