CODEWITHSUNDEEP
ruby-on-railsrubyunit-testingparallel-processingrake
Frank Visaggio
Frank Visaggio

Reputation: 3712

Run rails Rake: test in Parallel (on multiple cores / speeding it up) using Miniest

So running rake test (they are MiniTests) takes about 10 minutes for me (large rails project 95,000 lines of code in the /app directory). Its averaging about 25 assertions a second. The problem is there are a lot of tests.

Is there a way to run these in parallel (They are MiniTests)? I noticed only 1 core seems to be doing the work. Whats the best practice to execute these in Parallel?

mind you I am trying to best use all the resources (4-12 cores on the current machine the tests are running on). running them on separate machines isnt something i am looking at exploring currently.

so its impossible to concurrently run code on 2 cores at the same time with MRI i take it? using Jruby isnt an option currently.

Upvotes: 3

Views: 2506

Answers (1)

Alexander Randa
Alexander Randa

Reputation: 868

I think parallel_tests can help you.

This gem will run some parallel tests, each in a separate process. In total you get ~100% loading on each your cores.

Upvotes: 1

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