std/bytes/starts_with_test.ts

16 lines
504 B
TypeScript

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { assert } from "../testing/asserts.ts";
import { startsWith } from "./starts_with.ts";
Deno.test("[bytes] startsWith", () => {
const v = startsWith(new Uint8Array([0, 1, 2]), new Uint8Array([0, 1]));
const v2 = startsWith(new Uint8Array([0, 1, 2]), new Uint8Array([0, 2]));
const v3 = startsWith(
new Uint8Array([0, 1, 2]),
new Uint8Array([0, 2, 3, 4]),
);
assert(v);
assert(!v2);
assert(!v3);
});