assertNotInstanceOf | /testing/asserts.ts | std@0.223.0

Module

std/testing/asserts.ts>assertNotInstanceOf

The Deno Standard Library

denoland/deno_std

Latest

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Spy

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Has

function assertNotInstanceOf

Deprecated

(will be removed after 1.0.0) Import from https://deno.land/std/assert/assert_not_instance_of.ts instead.

import { assertNotInstanceOf } from "https://deno.land/std@0.223.0/testing/asserts.ts";

Deprecated

(will be removed after 1.0.0) Import from https://deno.land/std/assert/assert_not_instance_of.ts instead.

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@0.223.0/testing/asserts.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>