Testing — CAP Best Practices

Primary reference: https://cap.cloud.sap/docs/node.js/cds-test Vitest support (primary): https://cap.cloud.sap/docs/releases/2026/apr26

Recommended test runner: Vitest (CAP April 2026+)

cds.test now fully supports Vitest as a primary choice, while still maintaining compatibility with other test runners like Jest, Mocha, or Node's built-in test runner. Vitest is fully ESM compatible and recommended because Chai v6 (ESM) can no longer be fully provided in Jest runs — cds.test only provides a partial Chai emulation in Jest.

CDS 10+: New CAP projects are ESM-based by default ("type": "module" in package.json). Use import syntax in test files. To create a CommonJS project, remove "type": "module" from package.json.

npm install --save-dev @cap-js/cds-test vitest