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Vitest integration

Information about the Workers Vitest integration - the recommended package for writing unit and integration tests for Workers.

Get started: Install and set up the Workers Vitest integration.
Recipes: Examples that demonstrate how to write unit tests and integration tests for Workers projects with the Workers Vitest integration.
Configuration: Vitest configuration specific to the Workers integration.
Test APIs: Runtime helpers for writing tests, exported from the cloudflare:test module.
Isolation and concurrency: Review how the Workers Vitest integration runs your tests, how it isolates tests from each other, and how it imports modules.
Known issues: Explore the known issues associated with the Workers Vitest integration.