Features of knapsack_pro vs knapsack Ruby gem

Knapsack Pro

Ruby gem


Ruby gem

Queue mode - dynamic tests allocation across CI nodes play

Recommended way to run tests. Autobalance tests split between CI nodes to get optimal test suite time.
Mitigate CI node bottlenecks like tests with random time execution or overloaded CI nodes with random performance. (how it works & how to enable)

Regular mode - test suite split based on time execution play

It is deterministic way of running tests. It generates subset of test suite per CI node before running tests. Can be used with knapsack_pro ruby gem.

Automated tests time execution recording

Test suite split based on most up to date tests time execution data

Support for short-lived CI nodes

Knapsack Pro is fault-tolerant and can withstand possible CI instance preemptions (shut down) when you use highly affordable CI nodes like Google Cloud Preemptible VMs or Amazon EC2 Spot Instances. See how to enable it in Queue Mode. It's enabled in Regular Mode.

Knapsack Pro available as Heroku add-on

Knapsack Pro Heroku add-on page & See introduction video

Optimal test suite split for newly created branches

Smart test suite split when tests time execution data are not available

CI build metrics to detect bottlenecks

Find slow test files.

Export historical metrics about CI builds

How to export test suite timing data from Knapsack Pro API

Track test suite split for git commit hash
Track test suite split for branch name
Track test suite split for CI node total number
Retry failed CI node with the same subset of tests (see)
Run tests for particular CI node in your development environment (see)


HTTPS connection to Knapsack Pro API
Test file names encryption before send data to Knapsack Pro API (how to enable)
Fallback mode - run tests even in case of connection problems with Knapsack Pro API (see)

Ruby test runners support (see)


Other languages test runners support

Do you use different programming language or test runner? See our features page or let us know in the poll.

Supported CI providers

Heroku CI (integration also available as Heroku add-on)
Solano CI
Gitlab CI
Jenkins (example of set up)
GitHub Actions ( see video demo)
Codefresh.io ( see video demo)
Can work with other CI servers (setup with ENV vars)
Knapsack Pro is CI provider agnostic. As long as you can define bash command per parallel job (parallel CI node) on your CI server then you can run Knapsack Pro with it.