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 { perfWasm } from '../test/index.js';
import { blake2AsU8a } from './index.js';

describe('blake2AsU8a', (): 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 by default', (): void => {
        expect(
          blake2AsU8a('abc', undefined, undefined, onlyJs)
        ).toEqual(
          new Uint8Array([189, 221, 129, 60, 99, 66, 57, 114, 49, 113, 239, 63, 238, 152, 87, 155, 148, 150, 78, 59, 177, 203, 62, 66, 114, 98, 200, 192, 104, 213, 35, 25])
        );
      });

      it('returns a 128-bit value (as specified,)', (): void => {
        expect(
          blake2AsU8a('abc', 128, undefined, onlyJs)
        ).toEqual(
          new Uint8Array([207, 74, 183, 145, 198, 43, 141, 43, 33, 9, 201, 2, 117, 40, 120, 22])
        );
      });

      it('returns a 256-bit value (as specified)', (): void => {
        expect(
          blake2AsU8a('abc', 256, undefined, onlyJs)
        ).toEqual(
          new Uint8Array([189, 221, 129, 60, 99, 66, 57, 114, 49, 113, 239, 63, 238, 152, 87, 155, 148, 150, 78, 59, 177, 203, 62, 66, 114, 98, 200, 192, 104, 213, 35, 25])
        );
      });

      it('returns a 512-bit value (as specified)', (): void => {
        expect(
          blake2AsU8a('abc', 512, undefined, onlyJs)
        ).toEqual(
          hexToU8a('0xba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923')
        );
      });
    });
  }

  it('has equivalent Wasm/Js outputs on hex inputs', (): void => {
    const a = blake2AsU8a('0x123456', 256, null, false);
    const b = blake2AsU8a('0x123456', 256, null, true);

    expect(a).toEqual(b);
  });

  it('has equivalent Wasm/Js outputs with key inputs', (): void => {
    const a = blake2AsU8a('0x123456', 256, new Uint8Array([1, 2]), false);
    const b = blake2AsU8a('0x123456', 256, new Uint8Array([1, 2]), true);

    expect(a).toEqual(b);
  });

  for (const bitLength of [256, 512] as const) {
    describe(`bitLength=${bitLength}`, (): void => {
      perfWasm(`blake2AsU8a, bitLength=${bitLength}`, 64000, (input, onlyJs) =>
        blake2AsU8a(input, bitLength, null, onlyJs)
      );
    });
  }
});