tornado-core/test/deposit.ts

import { loadFixture } from '@nomicfoundation/hardhat-toolbox/network-helpers';
import { anyValue } from '@nomicfoundation/hardhat-chai-matchers/withArgs';
import { ethers } from 'hardhat';
import { expect } from 'chai';
import { formatEther } from 'ethers';

import { ETHTornado__factory, Verifier__factory } from '@tornado/contracts';
import { Deposit, deployHasher } from '../src';

const { getSigners } = ethers;

const NOTES_COUNT = 100;

describe('./src/deposit.ts', function () {
  const instanceFixture = async () => {
    const [owner] = await getSigners();

    const Hasher = (await (await deployHasher(owner)).wait())?.contractAddress as string;

    const Verifier = await new Verifier__factory(owner).deploy();

    const Instance = await new ETHTornado__factory(owner).deploy(Verifier.target, Hasher, 1n, 20);

    return { Instance };
  };

  it('Deposit New Note', async function () {
    const { Instance } = await loadFixture(instanceFixture);

    const [owner] = await getSigners();

    const netId = Number((await owner.provider.getNetwork()).chainId);

    const deposit = await Deposit.createNote({ currency: 'eth', amount: formatEther(1), netId });

    const resp = await Instance.deposit(deposit.commitmentHex, { value: 1n });

    await expect(resp).to.emit(Instance, 'Deposit').withArgs(deposit.commitmentHex, 0, anyValue);

    expect(await Instance.commitments(deposit.commitmentHex)).to.be.true;
  });

  xit(`Creating ${NOTES_COUNT} random notes`, async function () {
    const notes = (await Promise.all(
      // eslint-disable-next-line prefer-spread
      Array.apply(null, Array(NOTES_COUNT)).map(() =>
        Deposit.createNote({ currency: 'eth', amount: '0.1', netId: 31337 }),
      ),
    )) as Deposit[];

    notes.forEach(({ noteHex, commitmentHex, nullifierHex }) => {
      // ((secret.length: 31) + (nullifier.length: 31)) * 2 + (prefix: 2) = 126
      expect(noteHex.length === 126).to.be.true;
      expect(commitmentHex.length === 66).to.be.true;
      expect(nullifierHex.length === 66).to.be.true;
    });
  });
});