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function assertThrowsAsync
import { assertThrowsAsync } from "https://deno.land/std@0.105.0/testing/asserts.ts";

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<void>