test-your-types

SKILL.md

Just as you write tests for runtime code, you should write tests for your types. Type-level code can have bugs too, and type declarations can drift out of sync with implementations. Testing types ensures your declarations work correctly and catch the errors they should.

Type testing is particularly important for library authors, complex type utilities, and whenever types are defined separately from implementations.

Write tests for your types. Test that valid types work, invalid types fail, and the error messages are helpful.

在编写类型声明时使用。创作库时使用。在重构类型实用程序时使用。当类型和实现分离时使用。当类型包含复杂逻辑时使用。 来源：marius-townhouse/effective-typescript-skills。

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