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 { u8aEq, u8aToHex } from '@polkadot/util';
import { waitReady } from '@polkadot/wasm-crypto';

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

const MNEMONIC = 'seed sock milk update focus rotate barely fade car face mechanic mercy';
const SEED_32 = '0x3c121e20de068083b49c2315697fb59a2d9e8643c24e5ea7628132c58969a027';
const SEED_64 = '0x3c121e20de068083b49c2315697fb59a2d9e8643c24e5ea7628132c58969a0275693dd5bd9d4cc9e648475eba9613ed4678f4d62560a9c42f75bac04022ded25';

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

  for (const password of [undefined, 'foo', 'bar']) {
    it(`generates Wasm & Js equivalents for password=${password || 'undefined'}`, (): void => {
      expect(
        u8aEq(
          mnemonicToLegacySeed(MNEMONIC, password, true),
          mnemonicToLegacySeed(MNEMONIC, password, false)
        )
      ).toEqual(true);
    });
  }

  for (const onlyJs of [false, true]) {
    describe(`onlyJs=${(onlyJs && 'true') || 'false'}`, (): void => {
      it('generates a valid 64bytes seed', (): void => {
        expect(
          u8aToHex(mnemonicToLegacySeed(MNEMONIC, undefined, onlyJs, 64))
        ).toEqual(SEED_64);
      });

      it('generates a valid 32bytes seed', (): void => {
        expect(
          u8aToHex(mnemonicToLegacySeed(MNEMONIC, undefined, onlyJs))
        ).toEqual(SEED_32);
      });

      it('fails with non-mnemonics', (): void => {
        expect(
          () => mnemonicToLegacySeed('foo bar baz', undefined, onlyJs)
        ).toThrow(/mnemonic specified/);
      });
    });
  }
});