Captain is an open source CLI that can detect and quarantine flaky tests, automatically retry failed tests, partition files for parallel execution, and more.
Check out the quickstart guide to get started!
With Captain, you can:
Track, automatically retry, and quarantine flaky tests
Partition test suites to run in parallel jobs
Understand and debug test failures
With Captain's paid Cloud mode, you can:
Automatically re-balance parallelized test suites based on the latest test performance
Quarantine tests from the Cloud UI to mitigate issues with flaky or failing tests without having to make code changes
Get analytics on which flaky tests are the most problematic
See trends in test performance with 90 day retention
View aggregated and summarized test results for all partitions of a parallelized test suite run
For more information on Captain's feature set, view the Captain product page .
Captain integrates with your CI platform and your test framework to collect data. We currently support 17 test frameworks, but we're actively working on expanding the set of frameworks we support.
Mint Learn how to integrate Captain within Mint
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GitHub Actions Learn how to integrate Captain within GitHub Actions
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CircleCI Learn how to integrate Captain within CircleCI
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Buildkite Learn how to integrate Captain within Buildkite
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GitLab Learn how to integrate Captain within GitLab
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Platform Agnostic Learn how to integrate Captain within Platform Agnostic
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Cucumber JS Learn how to integrate Captain with Cucumber JS
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Cucumber Ruby Learn how to integrate Captain with Cucumber Ruby
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Cypress Learn how to integrate Captain with Cypress
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ExUnit Learn how to integrate Captain with ExUnit
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Ginkgo Learn how to integrate Captain with Ginkgo
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go test Learn how to integrate Captain with go test
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Jest Learn how to integrate Captain with Jest
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Karma Learn how to integrate Captain with Karma
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minitest Learn how to integrate Captain with minitest
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Mocha Learn how to integrate Captain with Mocha
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PHPUnit Learn how to integrate Captain with PHPUnit
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Playwright Learn how to integrate Captain with Playwright
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pytest Learn how to integrate Captain with pytest
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RSpec Learn how to integrate Captain with RSpec
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unittest Learn how to integrate Captain with unittest
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Vitest Learn how to integrate Captain with Vitest
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xUnit Learn how to integrate Captain with xUnit
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