assertThrowsAsync | /testing/asserts.ts | std@0.100.0

function assertThrowsAsync

import { assertThrowsAsync } from "https://deno.land/std@0.100.0/testing/asserts.ts";

assertThrowsAsync<T = void>(

fn: () => Promise<T>,

ErrorClass?: Constructor,

msgIncludes?,

msg?: string,

): Promise<Error>

Executes a function which returns a promise, expecting it to throw or reject. If it does not, then it throws. An error class and a string that should be included in the error message can also be asserted.

Type Parameters

optional

T = void

Parameters

fn: () => Promise<T>

optional

ErrorClass: Constructor

optional

msgIncludes = [UNSUPPORTED]

optional

msg: string

Returns

Promise<Error>