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Vitest · Method

vi.setConfig

vi.defineHelper creates a reusable assertion helper. Failed assertions point to the line that called the helper, not the helper's internal code.

Last updated

Since
4.1.0

Syntax

function defineHelper<F extends (...args: any) => any>(fn: F): F

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  • vi
  • expect
  • expect.soft()

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