···11# assert
2233-Vitest reexports `assert` method from [`chai`](https://www.chaijs.com/api/assert/) for verifying invariants.
33+Vitest reexports the `assert` method from [`chai`](https://www.chaijs.com/api/assert/) for verifying invariants.
4455## assert
66···1699169917001700- **Type:** `<T>(modifier: Function, object: T, property: string, message?: string) => void`
1701170117021702-Asserts that a `modifier` dose not increases a numeric `object`'s `property`.
17021702+Asserts that a `modifier` does not increases a numeric `object`'s `property`.
1703170317041704```ts
17051705import { assert, test } from 'vitest'