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knapsack gem

Knapsack splits tests evenly across parallel CI nodes to run fast CI build and save you time.

knapsack gem knapsack_pro gem
Is free ✓ Yes ✓ Yes, free plan
Regular Mode - a static tests split ✓ Yes ✓ Yes
Queue Mode - a dynamic tests split
(ensures all CI nodes finish work at the same time)
No ✓ Yes
Auto split slow RSpec test file between parallel CI nodes
(a single test file can be auto split by test examples between parallel jobs)
No ✓ Yes
Tracking tests timing per commit, branch No ✓ Yes
Support for other programming languages No ✓ Yes
Support for CI providers limited ✓ Yes
Installation README Install README Install README

Features of knapsack vs knapsack_pro Ruby gem

Do you use Heroku?

Do you know Knapsack Pro Ruby gem is available as Heroku add-on that's currently in beta and it's free to all beta users? It works with your current CI server. https://elements.heroku.com/addons/knapsack-pro

Knapsack Pro has Queue Mode that will split Ruby & JS tests in a dynamic way across parallel CI nodes to ensure each parallel job takes a similar time. Thanks to that there is no bottleneck in your CI pipelines.

See introduction how the Knapsack Pro add-on works https://youtu.be/rmXES2N0_QU

You may also find useful article how to run parallel dynos on Heroku CI to complete tests faster https://docs.knapsackpro.com/2019/how-to-run-tests-faster-on-heroku-ci-with-parallel-dynos

Do you know

  • Knapsack Pro is risk-free integration! Knapsack Pro runs tests in Fallback Mode if your CI servers can't reach our API for any reason.
  • We don't need access to your repository. Knapsack Pro is just wrapper around test runner like RSpec, Cucumber, Minitest etc.
  • Hundreds of developers use Knapsack Pro every day to run fast CI builds.
  • It works with other programming languages.

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