assertThrows | /test_deps.ts | collections@v0.11.1

Collection data structures that are not standard built-in objects in JavaScript. This includes a vector (double-ended queue), binary heap (priority queue), binary search tree, and a red black tree.

udibo/collections

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function assertThrows

import { assertThrows } from "https://deno.land/x/collections@v0.11.1/test_deps.ts";

assertThrows<T = void>(

fn: () => T,

ErrorClass?: Constructor,

msgIncludes?,

msg?: string,

): Error

Executes a function, expecting it to throw. 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: () => T

optional

ErrorClass: Constructor

optional

msgIncludes = [UNSUPPORTED]

optional

msg: string

Returns

Error