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denoland-deno/tests/unit_node/crypto/crypto_misc_test.ts

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TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { randomFillSync, randomUUID, timingSafeEqual } from "node:crypto";
import { Buffer } from "node:buffer";
import { assert, assertEquals } from "../../unit/test_util.ts";
import { assertNotEquals } from "@std/assert";
Deno.test("[node/crypto.getRandomUUID] works the same way as Web Crypto API", () => {
assertEquals(randomUUID().length, crypto.randomUUID().length);
assertEquals(typeof randomUUID(), typeof crypto.randomUUID());
});
Deno.test("[node/crypto.randomFillSync] supported arguments", () => {
const buf = new Uint8Array(10);
assert(randomFillSync(buf));
assert(randomFillSync(buf, 0));
// @ts-ignore: arraybuffer arguments are valid.
assert(randomFillSync(buf.buffer));
assert(randomFillSync(new DataView(buf.buffer)));
});
Deno.test("[node/crypto.randomFillSync] array buffer view", () => {
const buf = new Uint8Array(32);
const view = new Uint8Array(buf.buffer, 8, 16);
assert(randomFillSync(view));
assertEquals(view.length, 16);
assertNotEquals(view, new Uint8Array(16));
assertEquals(buf.subarray(0, 8), new Uint8Array(8));
assertEquals(buf.subarray(24, 32), new Uint8Array(8));
});
Deno.test("[node/crypto.timingSafeEqual] compares equal Buffer with different byteOffset", () => {
const a = Buffer.from([212, 213]);
const b = Buffer.from([0, 0, 0, 0, 0, 0, 0, 0, 212, 213]).subarray(8);
assert(timingSafeEqual(a, b));
});