Knapsack Pro JS

Speed up your tests

Run your 1-hour test suite in 2 minutes with optimal parallelisation on your existing CI infrastructure

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Knapsack Pro wraps your current test runner(s) and works with your existing CI infrastructure to parallelize tests optimally:

• Dynamically splits your tests based on up-to-date test execution data
• Is designed from the ground up for CI and supports all of them
• Tracks your CI builds to detect bottlenecks
• Does not have access to your source code and collects minimal test data
• Enables you to export historical metrics about your CI builds
• Replaces local dependencies like Redis with an API and runs your tests regardless of network problems

Installation

See the docs to get started:

Contributing

Requirements

>= Node 18.13.0 LTS

You can use NVM to manage Node versions in development.

Setup

npm install
npm run build
# Need a second install to run:
#   - npx @knapsack-pro/jest
#   - npx @knapsack-pro/cypress
# See https://github.com/npm/cli/issues/4591#issuecomment-1111557730
npm install

Testing

npm run test:core:coverage
npm run test:jest
npm run test:cypress
npm run test:cra

You can find more example scripts in the nested packages/.

IDE (VSCode)

Install the following plugins:

• Prettier - Code formatter
• ESLint
• EditorConfig for VS Code

In File > Preferences > Settings > Text Editor > Formatting, enable the Format On Save checkbox.

Publishing

Core

# merge PR and pull or edit code
# if new files that should be part of the released npm package were added, please ensure they are included in the `files` array in `package.json`
# update CHANGELOG to move *unreleased* into the proper *version*
npm version LEVEL -w packages/core
git add --all
git commit -m "chore: prepare release"
git tag @knapsack-pro/core@x.x.x

git push origin main --tags

cd packages/core
npm run build
npm adduser # sign in to npm
npm publish

Jest and/or Cypress

Replace PACKAGE with jest, or cypress. If core changed you'll need to update both.

# merge PR and pull or edit code
# if new files that should be part of the released npm package were added, please ensure they are included in the `files` array in `package.json`
# update CHANGELOG(s) to move *unreleased* into the proper *version*
npm version LEVEL -w packages/PACKAGE
npm install @knapsack-pro/core -w packages/jest
# make sure @knapsack-pro/core was updated in packages/jest/package.json (you can retry specifying the version package@x.x.x)
npm install @knapsack-pro/core -w packages/cypress
# make sure @knapsack-pro/core was updated in packages/cypress/package.json (you can retry specifying the version package@x.x.x)
git add --all
git commit -m "chore: prepare release"
git tag @knapsack-pro/PACKAGE@x.x.x # can be multiple tags

git push origin main --tags

cd packages/PACKAGE
npm run build
npm adduser # sign in to npm
npm publish

npm install -D @knapsack-pro/jest -w packages/jest-example-test-suite
# make sure @knapsack-pro/jest was updated in packages/jest-example-test-suite/package.json (you can retry specifying the version package@x.x.x)
npm run test:jest

npm install -D @knapsack-pro/cypress -w packages/cypress-example-test-suite
# make sure @knapsack-pro/cypress was updated in packages/cypress-example-test-suite/package.json
npm run test:cypress

# since create-react-app-example is not a workspace (for now)
cd packages/create-react-app-example
npm install -D @knapsack-pro/jest
# make sure @knapsack-pro/jest was updated in packages/create-react-app-example/package.json
npm run test:cra

git add --all
git commit -m "deps(examples): update @knapsack-pro"

Remember to update TestSuiteClientVersionChecker for the Knapsack Pro API repository.

Packages

Read the READMEs inside the nested packages/:

• core
• jest
• cypress
• jest-example-test-suite
• cypress-example-test-suite
• create-react-app-example

Legacy Repositories

Before merging the Knapsack Pro packages into this monorepo, each one was hosted in a separate repository:

• core
• jest
• cypress
• jest-example-test-suite
• cypress-example-test-suite