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Vitest · Matcher

toEqualTypeOf

toEqualTypeOf checks that a tested TypeScript type is fully equal to an expected type. It checks type shape, not runtime object values.

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Syntax

expectTypeOf(value).toEqualTypeOf<T>()
expectTypeOf(value).toEqualTypeOf(expected)

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  • expectTypeOf
  • toExtend
  • toMatchTypeOf
  • assertType

Source: expectTypeOf | Vitest. Checked 2026-11-03.