345 lines
17 KiB
JavaScript
345 lines
17 KiB
JavaScript
const { ethers } = require('hardhat');
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const { expect } = require('chai');
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const { loadFixture, mine } = require('@nomicfoundation/hardhat-network-helpers');
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const { GovernorHelper } = require('../../helpers/governance');
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const { getDomain, OverrideBallot } = require('../../helpers/eip712');
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const { VoteType } = require('../../helpers/enums');
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const TOKENS = [
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{ Token: '$ERC20VotesExtendedMock', mode: 'blocknumber' },
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{ Token: '$ERC20VotesExtendedTimestampMock', mode: 'timestamp' },
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];
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const name = 'Override Governor';
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const version = '1';
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const tokenName = 'MockToken';
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const tokenSymbol = 'MTKN';
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const tokenSupply = ethers.parseEther('100');
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const votingDelay = 4n;
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const votingPeriod = 16n;
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const value = ethers.parseEther('1');
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const signBallot = account => (contract, message) =>
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getDomain(contract).then(domain => account.signTypedData(domain, { OverrideBallot }, message));
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describe('GovernorCountingOverridable', function () {
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for (const { Token, mode } of TOKENS) {
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const fixture = async () => {
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const [owner, proposer, voter1, voter2, voter3, voter4, other] = await ethers.getSigners();
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const receiver = await ethers.deployContract('CallReceiverMock');
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const token = await ethers.deployContract(Token, [tokenName, tokenSymbol, tokenName, version]);
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const mock = await ethers.deployContract('$GovernorCountingOverridableMock', [
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name, // name
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votingDelay, // initialVotingDelay
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votingPeriod, // initialVotingPeriod
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0n, // initialProposalThreshold
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token, // tokenAddress
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10n, // quorumNumeratorValue
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]);
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await owner.sendTransaction({ to: mock, value });
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await token.$_mint(owner, tokenSupply);
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const helper = new GovernorHelper(mock, mode);
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await helper.connect(owner).delegate({ token, to: voter1, value: ethers.parseEther('10') });
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await helper.connect(owner).delegate({ token, to: voter2, value: ethers.parseEther('7') });
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await helper.connect(owner).delegate({ token, to: voter3, value: ethers.parseEther('5') });
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await helper.connect(owner).delegate({ token, to: voter4, value: ethers.parseEther('2') });
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return { owner, proposer, voter1, voter2, voter3, voter4, other, receiver, token, mock, helper };
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};
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describe(`using ${Token}`, function () {
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beforeEach(async function () {
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Object.assign(this, await loadFixture(fixture));
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// default proposal
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this.proposal = this.helper.setProposal(
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[
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{
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target: this.receiver.target,
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value,
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data: this.receiver.interface.encodeFunctionData('mockFunction'),
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},
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],
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'<proposal description>',
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);
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});
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it('deployment check', async function () {
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expect(await this.mock.name()).to.equal(name);
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expect(await this.mock.token()).to.equal(this.token);
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expect(await this.mock.votingDelay()).to.equal(votingDelay);
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expect(await this.mock.votingPeriod()).to.equal(votingPeriod);
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expect(await this.mock.COUNTING_MODE()).to.equal('support=bravo,override&quorum=for,abstain&overridable=true');
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});
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it('nominal is unaffected', async function () {
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await this.helper.connect(this.proposer).propose();
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await this.helper.waitForSnapshot();
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await this.helper.connect(this.voter1).vote({ support: VoteType.For, reason: 'This is nice' });
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await this.helper.connect(this.voter2).vote({ support: VoteType.For });
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await this.helper.connect(this.voter3).vote({ support: VoteType.Against });
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await this.helper.connect(this.voter4).vote({ support: VoteType.Abstain });
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await this.helper.waitForDeadline();
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await this.helper.execute();
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expect(await this.mock.hasVoted(this.proposal.id, this.owner)).to.be.false;
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expect(await this.mock.hasVoted(this.proposal.id, this.voter1)).to.be.true;
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expect(await this.mock.hasVoted(this.proposal.id, this.voter2)).to.be.true;
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expect(await ethers.provider.getBalance(this.mock)).to.equal(0n);
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expect(await ethers.provider.getBalance(this.receiver)).to.equal(value);
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});
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describe('cast override vote', async function () {
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beforeEach(async function () {
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// user 1 -(delegate 10 tokens)-> user 2
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// user 2 -(delegate 7 tokens)-> user 2
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// user 3 -(delegate 5 tokens)-> user 1
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// user 4 -(delegate 2 tokens)-> user 2
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await this.token.connect(this.voter1).delegate(this.voter2);
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await this.token.connect(this.voter3).delegate(this.voter1);
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await this.token.connect(this.voter4).delegate(this.voter2);
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await mine();
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await this.helper.connect(this.proposer).propose();
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await this.helper.waitForSnapshot();
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});
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it('override after delegate vote', async function () {
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter2)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter3)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter4)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter2)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter3)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter4)).to.be.false;
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// user 2 votes
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await expect(this.helper.connect(this.voter2).vote({ support: VoteType.For }))
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.to.emit(this.mock, 'VoteCast')
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.withArgs(this.voter2, this.helper.id, VoteType.For, ethers.parseEther('19'), ''); // 10 + 7 + 2
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[0, 19, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter2)).to.be.true;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter2)).to.be.false;
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// user 1 overrides after user 2 votes
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const reason = "disagree with user 2's decision";
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await expect(this.mock.connect(this.voter1).castOverrideVote(this.helper.id, VoteType.Against, reason))
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.Against, ethers.parseEther('10'), reason)
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.to.emit(this.mock, 'VoteReduced')
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.withArgs(this.voter2, this.helper.id, VoteType.For, ethers.parseEther('10'));
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 9, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.true;
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});
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it('override before delegate vote', async function () {
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter2)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter3)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter4)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter2)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter3)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter4)).to.be.false;
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// user 1 overrides before user 2 votes
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const reason = 'voter 2 is not voting';
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await expect(this.mock.connect(this.voter1).castOverrideVote(this.helper.id, VoteType.Against, reason))
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.Against, ethers.parseEther('10'), reason)
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.to.not.emit(this.mock, 'VoteReduced');
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 0, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.true;
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// user 2 votes
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await expect(this.helper.connect(this.voter2).vote({ support: VoteType.For }))
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.to.emit(this.mock, 'VoteCast')
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.withArgs(this.voter2, this.helper.id, VoteType.For, ethers.parseEther('9'), ''); // 7 + 2
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 9, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter2)).to.be.true;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter2)).to.be.false;
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});
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it('override before and after delegate vote', async function () {
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter2)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter3)).to.be.false;
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expect(await this.mock.hasVoted(this.helper.id, this.voter4)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter2)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter3)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter4)).to.be.false;
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// user 1 overrides before user 2 votes
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const reason = 'voter 2 is not voting';
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await expect(this.mock.connect(this.voter1).castOverrideVote(this.helper.id, VoteType.Against, reason))
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.Against, ethers.parseEther('10'), reason)
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.to.not.emit(this.mock, 'VoteReduced');
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 0, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.true;
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// user 2 votes
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await expect(this.helper.connect(this.voter2).vote({ support: VoteType.For }))
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.to.emit(this.mock, 'VoteCast')
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.withArgs(this.voter2, this.helper.id, VoteType.For, ethers.parseEther('9'), ''); // 7 + 2
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 9, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter2)).to.be.true;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter2)).to.be.false;
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// User 4 overrides after user 2 votes
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const reason2 = "disagree with user 2's decision";
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await expect(this.mock.connect(this.voter4).castOverrideVote(this.helper.id, VoteType.Abstain, reason2))
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter4, this.helper.id, VoteType.Abstain, ethers.parseEther('2'), reason2)
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.to.emit(this.mock, 'VoteReduced')
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.withArgs(this.voter2, this.helper.id, VoteType.For, ethers.parseEther('2'));
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 7, 2].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter4)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter4)).to.be.true;
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});
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it('vote (with delegated balance) and override (with self balance) are independent', async function () {
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[0, 0, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.false;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.false;
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// user 1 votes with delegated weight from user 3
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await expect(this.mock.connect(this.voter1).castVote(this.helper.id, VoteType.For))
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.to.emit(this.mock, 'VoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.For, ethers.parseEther('5'), '');
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// user 1 cast an override vote with its own balance (delegated to user 2)
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await expect(this.mock.connect(this.voter1).castOverrideVote(this.helper.id, VoteType.Against, ''))
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.Against, ethers.parseEther('10'), '');
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expect(await this.mock.proposalVotes(this.helper.id)).to.deep.eq(
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[10, 5, 0].map(x => ethers.parseEther(x.toString())),
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);
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expect(await this.mock.hasVoted(this.helper.id, this.voter1)).to.be.true;
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expect(await this.mock.hasVotedOverride(this.helper.id, this.voter1)).to.be.true;
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});
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it('can not override vote twice', async function () {
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await expect(this.mock.connect(this.voter1).castOverrideVote(this.helper.id, VoteType.Against, ''))
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.Against, ethers.parseEther('10'), '');
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await expect(this.mock.connect(this.voter1).castOverrideVote(this.helper.id, VoteType.Abstain, ''))
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.to.be.revertedWithCustomError(this.mock, 'GovernorAlreadyOverridenVote')
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.withArgs(this.voter1.address);
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});
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it('can not vote twice', async function () {
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await expect(this.mock.connect(this.voter1).castVote(this.helper.id, VoteType.Against));
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await expect(this.mock.connect(this.voter1).castVote(this.helper.id, VoteType.Abstain))
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.to.be.revertedWithCustomError(this.mock, 'GovernorAlreadyCastVote')
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.withArgs(this.voter1.address);
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});
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describe('invalid vote type', function () {
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it('override vote', async function () {
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await expect(
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this.mock.connect(this.voter1).castOverrideVote(this.helper.id, 3, ''),
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).to.be.revertedWithCustomError(this.mock, 'GovernorInvalidVoteType');
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});
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it('traditional vote', async function () {
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await expect(this.mock.connect(this.voter1).castVote(this.helper.id, 3)).to.be.revertedWithCustomError(
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this.mock,
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'GovernorInvalidVoteType',
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);
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});
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});
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describe('by signature', function () {
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it('EOA signature', async function () {
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const nonce = await this.mock.nonces(this.voter1);
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await expect(
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this.helper.overrideVote({
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support: VoteType.For,
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voter: this.voter1.address,
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nonce,
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signature: signBallot(this.voter1),
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}),
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)
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.to.emit(this.mock, 'OverrideVoteCast')
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.withArgs(this.voter1, this.helper.id, VoteType.For, ethers.parseEther('10'), '');
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expect(await this.mock.hasVotedOverride(this.proposal.id, this.voter1)).to.be.true;
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});
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it('revert if signature does not match signer', async function () {
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const nonce = await this.mock.nonces(this.voter1);
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const voteParams = {
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support: VoteType.For,
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voter: this.voter2.address,
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nonce,
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signature: signBallot(this.voter1),
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};
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await expect(this.helper.overrideVote(voteParams))
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.to.be.revertedWithCustomError(this.mock, 'GovernorInvalidSignature')
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.withArgs(voteParams.voter);
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});
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it('revert if vote nonce is incorrect', async function () {
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const nonce = await this.mock.nonces(this.voter1);
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const voteParams = {
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support: VoteType.For,
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voter: this.voter1.address,
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nonce: nonce + 1n,
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signature: signBallot(this.voter1),
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};
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await expect(this.helper.overrideVote(voteParams))
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.to.be.revertedWithCustomError(this.mock, 'GovernorInvalidSignature')
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.withArgs(voteParams.voter);
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});
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});
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});
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});
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}
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});
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