Testkit / start
Add behavioural verification to the project.
Testkit is a cross-platform npm development dependency that fits alongside the testing tools your team already uses.
Development dependency
Add Testkit to the project.
Install Testkit as a development dependency, then run the suite from the repository root.
npm install --save-dev @(scope)/testkit
npx testkit runTestkit discovers colocated product suites, prepares their managed engine, starts declared local services, and preserves results and artifacts under .testkit/results/.
Requires Node.js 22.15–22.x or 24.14–24.x · Linux, macOS, and Windows x64/arm64 where supported.
Open quickstart