assertNotInstanceOf | /testing/asserts.ts | std@0.211.0

Module

std/testing/asserts.ts>assertNotInstanceOf

Deno standard library

denoland/deno_std

assertNotStrictEquals

Spy

spy

Has

The Standard Library has been moved to JSR. See the blog post for details.

function assertNotInstanceOf

import { assertNotInstanceOf } from "https://deno.land/std@0.211.0/testing/asserts.ts";

assertNotInstanceOf<A, T>(

actual: A,

unexpectedType: new (...args: any[]) => T,

msg?: string,

): asserts actual is Exclude<A, T>

Make an assertion that obj is not an instance of type. If so, then throw.

Examples

Example 1

import { assertNotInstanceOf } from "https://deno.land/std@0.211.0/assert/assert_not_instance_of.ts";

assertNotInstanceOf(new Date(), Number); // Doesn't throw
assertNotInstanceOf(new Date(), Date); // Throws

Type Parameters

Parameters

actual: A

unexpectedType: new (...args: any[]) => T

optional

msg: string

Returns

asserts actual is Exclude<A, T>