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openzeppelin-contracts/test/governance/extensions/GovernorPreventLateQuorum.t...

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const { BN, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers');
const Enums = require('../../helpers/enums');
const {
runGovernorWorkflow,
} = require('../GovernorWorkflow.behavior');
const Token = artifacts.require('ERC20VotesCompMock');
const Governor = artifacts.require('GovernorPreventLateQuorumMock');
const CallReceiver = artifacts.require('CallReceiverMock');
contract('GovernorPreventLateQuorum', function (accounts) {
const [ owner, proposer, voter1, voter2, voter3, voter4 ] = accounts;
const name = 'OZ-Governor';
// const version = '1';
const tokenName = 'MockToken';
const tokenSymbol = 'MTKN';
const tokenSupply = web3.utils.toWei('100');
const votingDelay = new BN(4);
const votingPeriod = new BN(16);
const lateQuorumVoteExtension = new BN(8);
const quorum = web3.utils.toWei('1');
beforeEach(async function () {
this.owner = owner;
this.token = await Token.new(tokenName, tokenSymbol);
this.mock = await Governor.new(
name,
this.token.address,
votingDelay,
votingPeriod,
quorum,
lateQuorumVoteExtension,
);
this.receiver = await CallReceiver.new();
await this.token.mint(owner, tokenSupply);
await this.token.delegate(voter1, { from: voter1 });
await this.token.delegate(voter2, { from: voter2 });
await this.token.delegate(voter3, { from: voter3 });
await this.token.delegate(voter4, { from: voter4 });
});
it('deployment check', async function () {
expect(await this.mock.name()).to.be.equal(name);
expect(await this.mock.token()).to.be.equal(this.token.address);
expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay);
expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod);
expect(await this.mock.quorum(0)).to.be.bignumber.equal(quorum);
expect(await this.mock.lateQuorumVoteExtension()).to.be.bignumber.equal(lateQuorumVoteExtension);
});
describe('nominal is unaffected', function () {
beforeEach(async function () {
this.settings = {
proposal: [
[ this.receiver.address ],
[ 0 ],
[ this.receiver.contract.methods.mockFunction().encodeABI() ],
'<proposal description>',
],
proposer,
tokenHolder: owner,
voters: [
{ voter: voter1, weight: web3.utils.toWei('1'), support: Enums.VoteType.For, reason: 'This is nice' },
{ voter: voter2, weight: web3.utils.toWei('7'), support: Enums.VoteType.For },
{ voter: voter3, weight: web3.utils.toWei('5'), support: Enums.VoteType.Against },
{ voter: voter4, weight: web3.utils.toWei('2'), support: Enums.VoteType.Abstain },
],
};
});
afterEach(async function () {
expect(await this.mock.hasVoted(this.id, owner)).to.be.equal(false);
expect(await this.mock.hasVoted(this.id, voter1)).to.be.equal(true);
expect(await this.mock.hasVoted(this.id, voter2)).to.be.equal(true);
await this.mock.proposalVotes(this.id).then(result => {
for (const [key, value] of Object.entries(Enums.VoteType)) {
expect(result[`${key.toLowerCase()}Votes`]).to.be.bignumber.equal(
Object.values(this.settings.voters).filter(({ support }) => support === value).reduce(
(acc, { weight }) => acc.add(new BN(weight)),
new BN('0'),
),
);
}
});
const startBlock = new BN(this.receipts.propose.blockNumber).add(votingDelay);
const endBlock = new BN(this.receipts.propose.blockNumber).add(votingDelay).add(votingPeriod);
expect(await this.mock.proposalSnapshot(this.id)).to.be.bignumber.equal(startBlock);
expect(await this.mock.proposalDeadline(this.id)).to.be.bignumber.equal(endBlock);
expectEvent(
this.receipts.propose,
'ProposalCreated',
{
proposalId: this.id,
proposer,
targets: this.settings.proposal[0],
// values: this.settings.proposal[1].map(value => new BN(value)),
signatures: this.settings.proposal[2].map(() => ''),
calldatas: this.settings.proposal[2],
startBlock,
endBlock,
description: this.settings.proposal[3],
},
);
this.receipts.castVote.filter(Boolean).forEach(vote => {
const { voter } = vote.logs.find(Boolean).args;
expectEvent(
vote,
'VoteCast',
this.settings.voters.find(({ address }) => address === voter),
);
expectEvent.notEmitted(
vote,
'ProposalExtended',
);
});
expectEvent(
this.receipts.execute,
'ProposalExecuted',
{ proposalId: this.id },
);
await expectEvent.inTransaction(
this.receipts.execute.transactionHash,
this.receiver,
'MockFunctionCalled',
);
});
runGovernorWorkflow();
});
describe('Delay is extended to prevent last minute take-over', function () {
beforeEach(async function () {
this.settings = {
proposal: [
[ this.receiver.address ],
[ 0 ],
[ this.receiver.contract.methods.mockFunction().encodeABI() ],
'<proposal description>',
],
proposer,
tokenHolder: owner,
voters: [
{ voter: voter1, weight: web3.utils.toWei('0.2'), support: Enums.VoteType.Against },
{ voter: voter2, weight: web3.utils.toWei('1.0') }, // do not actually vote, only getting tokens
{ voter: voter3, weight: web3.utils.toWei('0.9') }, // do not actually vote, only getting tokens
],
steps: {
wait: { enable: false },
execute: { enable: false },
},
};
});
afterEach(async function () {
expect(await this.mock.state(this.id)).to.be.bignumber.equal(Enums.ProposalState.Active);
const startBlock = new BN(this.receipts.propose.blockNumber).add(votingDelay);
const endBlock = new BN(this.receipts.propose.blockNumber).add(votingDelay).add(votingPeriod);
expect(await this.mock.proposalSnapshot(this.id)).to.be.bignumber.equal(startBlock);
expect(await this.mock.proposalDeadline(this.id)).to.be.bignumber.equal(endBlock);
// wait until the vote is almost over
await time.advanceBlockTo(endBlock.subn(1));
expect(await this.mock.state(this.id)).to.be.bignumber.equal(Enums.ProposalState.Active);
// try to overtake the vote at the last minute
const tx = await this.mock.castVote(this.id, Enums.VoteType.For, { from: voter2 });
// vote duration is extended
const extendedBlock = new BN(tx.receipt.blockNumber).add(lateQuorumVoteExtension);
expect(await this.mock.proposalDeadline(this.id)).to.be.bignumber.equal(extendedBlock);
expectEvent(
tx,
'ProposalExtended',
{ proposalId: this.id, extendedDeadline: extendedBlock },
);
// vote is still active after expected end
await time.advanceBlockTo(endBlock.addn(1));
expect(await this.mock.state(this.id)).to.be.bignumber.equal(Enums.ProposalState.Active);
// Still possible to vote
await this.mock.castVote(this.id, Enums.VoteType.Against, { from: voter3 });
// proposal fails
await time.advanceBlockTo(extendedBlock.addn(1));
expect(await this.mock.state(this.id)).to.be.bignumber.equal(Enums.ProposalState.Defeated);
});
runGovernorWorkflow();
});
describe('setLateQuorumVoteExtension', function () {
beforeEach(async function () {
this.newVoteExtension = new BN(0); // disable voting delay extension
});
it('protected', async function () {
await expectRevert(
this.mock.setLateQuorumVoteExtension(this.newVoteExtension),
'Governor: onlyGovernance',
);
});
describe('using workflow', function () {
beforeEach(async function () {
this.settings = {
proposal: [
[ this.mock.address ],
[ web3.utils.toWei('0') ],
[ this.mock.contract.methods.setLateQuorumVoteExtension(this.newVoteExtension).encodeABI() ],
'<proposal description>',
],
proposer,
tokenHolder: owner,
voters: [
{ voter: voter1, weight: web3.utils.toWei('1.0'), support: Enums.VoteType.For },
],
};
});
afterEach(async function () {
expectEvent(
this.receipts.propose,
'ProposalCreated',
{ proposalId: this.id },
);
expectEvent(
this.receipts.execute,
'ProposalExecuted',
{ proposalId: this.id },
);
expectEvent(
this.receipts.execute,
'LateQuorumVoteExtensionSet',
{ oldVoteExtension: lateQuorumVoteExtension, newVoteExtension: this.newVoteExtension },
);
expect(await this.mock.lateQuorumVoteExtension()).to.be.bignumber.equal(this.newVoteExtension);
});
runGovernorWorkflow();
});
});
});