std/testing/asserts.ts

Deno standard library
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function assertIsError
import { assertIsError } from "https://deno.land/std@0.145.0/testing/asserts.ts?s=assertIsError";

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
[src]

Parameters

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

Returns

asserts error is E[src]