polkadot-js/common

// Copyright 2017-2024 @polkadot/util-crypto authors & contributors
// SPDX-License-Identifier: Apache-2.0

/// <reference types="@polkadot/dev-test/globals.d.ts" />

import { hexToU8a } from '@polkadot/util';
import { waitReady } from '@polkadot/wasm-crypto';

import { blake2AsHex } from './index.js';

describe('blake2AsHex', (): void => {
  beforeEach(async (): Promise<void> => {
    await waitReady();
  });

  for (const onlyJs of [false, true]) {
    describe(`onlyJs=${(onlyJs && 'true') || 'false'}`, (): void => {
      it('returns a 64-bit value (specified)', (): void => {
        expect(
          blake2AsHex('abc', 64, null, onlyJs)
        ).toEqual('0xd8bb14d833d59559');
      });

      it('returns a 128-bit value (as specified)', (): void => {
        expect(
          blake2AsHex('abc', 128, null, onlyJs)
        ).toEqual('0xcf4ab791c62b8d2b2109c90275287816');
      });

      it('returns a 128-bit value (as specified, with key)', (): void => {
        expect(
          blake2AsHex('abc', 128, new Uint8Array([1, 2]), onlyJs)
        ).toEqual('0x36f3d08cda72a00ddf2be103eb5770d9');
      });

      it('returns a 256-bit value (default)', (): void => {
        expect(
          blake2AsHex('abc', undefined, null, onlyJs)
        ).toEqual('0xbddd813c634239723171ef3fee98579b94964e3bb1cb3e427262c8c068d52319');
      });

      it('returns a 512-bit value (as specified)', (): void => {
        expect(
          blake2AsHex('abc', 512, null, onlyJs)
        ).toEqual('0xba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923');
      });

      it('matches with the Rust implementation', (): void => {
        expect(
          blake2AsHex(
            hexToU8a('0x454545454545454545454545454545454545454545454545454545454545454501000000000000002481853da20b9f4322f34650fea5f240dcbfb266d02db94bfa0153c31f4a29dbdbf025dd4a69a6f4ee6e1577b251b655097e298b692cb34c18d3182cac3de0dc00000000'), 256, undefined, onlyJs
          )
        ).toEqual('0x1025e5db74fdaf4d2818822dccf0e1604ae9ccc62f26cecfde23448ff0248abf');
      });
    });
  }
});