Simplifies creating and managing mock functions, spies, and module doubles within the Bun test environment.
This skill equips Claude with the expertise to implement sophisticated testing patterns using Bun's native testing toolkit. It provides comprehensive guidance on creating mock functions, overriding implementations, spying on object methods, and mocking entire modules or Node.js packages. By automating the boilerplate for test doubles and assertions, it helps developers build robust test suites for Bun-based applications with Jest-compatible syntax and optimized performance.
Key Features
0121 GitHub stars
02Method spying with implementation overrides and automatic restoration
03Advanced module mocking for internal and external dependencies
04Full Jest compatibility support for seamless migration
05Comprehensive mock function creation using Bun's native API
06Rich assertion patterns for verifying function calls, arguments, and return values
Use Cases
01Isolating components by mocking complex module dependencies
02Mocking external API calls like fetch or Axios in unit tests
03Verifying side effects such as console logs or database interactions
