import { assertions } from "https://deno.land/x/html_parser@v0.1.3/src/deps.ts";
const { assertThrowsAsync } = assertions;
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.
Parameters
fn: () => Promise<T>