Module

std/testing/asserts.ts

Deno standard library
Go to Latest
function assertIsError
import { assertIsError } from "https://deno.land/std@0.146.0/testing/asserts.ts";

Make an assertion that error is an Error. If not then an error will be thrown. An error class and a string that should be included in the error message can also be asserted.

Type Parameters

optional
E extends Error = Error

Parameters

error: unknown
optional
ErrorClass: new (...args: any[]) => E
optional
msgIncludes: string
optional
msg: string

Returns

asserts error is E