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174 lines
7.7 KiB
174 lines
7.7 KiB
/* eslint-disable */
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const { BN, expectEvent, time } = require('@openzeppelin/test-helpers');
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const { expect } = require('chai');
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const { promisify } = require('util');
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const queue = promisify(setImmediate);
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const ERC721VotesMock = artifacts.require('ERC721VotesMock');
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const { shouldBehaveLikeVotes } = require('../../../governance/utils/Votes.behavior');
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contract('ERC721Votes', function (accounts) {
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const [ account1, account2, account1Delegatee, other1, other2 ] = accounts;
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this.name = 'My Vote';
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const symbol = 'MTKN';
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beforeEach(async function () {
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this.votes = await ERC721VotesMock.new(name, symbol);
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// We get the chain id from the contract because Ganache (used for coverage) does not return the same chain id
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// from within the EVM as from the JSON RPC interface.
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// See https://github.com/trufflesuite/ganache-core/issues/515
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this.chainId = await this.votes.getChainId();
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this.NFT0 = new BN('10000000000000000000000000');
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this.NFT1 = new BN('10');
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this.NFT2 = new BN('20');
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this.NFT3 = new BN('30');
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});
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describe('balanceOf', function () {
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beforeEach(async function () {
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await this.votes.mint(account1, this.NFT0);
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await this.votes.mint(account1, this.NFT1);
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await this.votes.mint(account1, this.NFT2);
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await this.votes.mint(account1, this.NFT3);
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});
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it('grants to initial account', async function () {
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expect(await this.votes.balanceOf(account1)).to.be.bignumber.equal('4');
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});
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});
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describe('transfers', function () {
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beforeEach(async function () {
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await this.votes.mint(account1, this.NFT0);
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});
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it('no delegation', async function () {
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const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 });
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expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 });
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expectEvent.notEmitted(receipt, 'DelegateVotesChanged');
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this.account1Votes = '0';
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this.account2Votes = '0';
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});
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it('sender delegation', async function () {
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await this.votes.delegate(account1, { from: account1 });
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const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 });
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expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 });
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expectEvent(receipt, 'DelegateVotesChanged', { delegate: account1, previousBalance: '1', newBalance: '0' });
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const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer');
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expect(receipt.logs.filter(({ event }) => event == 'DelegateVotesChanged').every(({ logIndex }) => transferLogIndex < logIndex)).to.be.equal(true);
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this.account1Votes = '0';
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this.account2Votes = '0';
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});
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it('receiver delegation', async function () {
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await this.votes.delegate(account2, { from: account2 });
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const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 });
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expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 });
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expectEvent(receipt, 'DelegateVotesChanged', { delegate: account2, previousBalance: '0', newBalance: '1' });
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const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer');
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expect(receipt.logs.filter(({ event }) => event == 'DelegateVotesChanged').every(({ logIndex }) => transferLogIndex < logIndex)).to.be.equal(true);
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this.account1Votes = '0';
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this.account2Votes = '1';
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});
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it('full delegation', async function () {
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await this.votes.delegate(account1, { from: account1 });
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await this.votes.delegate(account2, { from: account2 });
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const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 });
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expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 });
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expectEvent(receipt, 'DelegateVotesChanged', { delegate: account1, previousBalance: '1', newBalance: '0'});
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expectEvent(receipt, 'DelegateVotesChanged', { delegate: account2, previousBalance: '0', newBalance: '1' });
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const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer');
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expect(receipt.logs.filter(({ event }) => event == 'DelegateVotesChanged').every(({ logIndex }) => transferLogIndex < logIndex)).to.be.equal(true);
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this.account1Votes = '0';
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this.account2Votes = '1';
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});
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it('returns the same total supply on transfers', async function () {
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await this.votes.delegate(account1, { from: account1 });
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const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 });
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await time.advanceBlock();
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await time.advanceBlock();
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expect(await this.votes.getPastTotalSupply(receipt.blockNumber - 1)).to.be.bignumber.equal('1');
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expect(await this.votes.getPastTotalSupply(receipt.blockNumber + 1)).to.be.bignumber.equal('1');
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this.account1Votes = '0';
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this.account2Votes = '0';
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});
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it('generally returns the voting balance at the appropriate checkpoint', async function () {
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await this.votes.mint(account1, this.NFT1);
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await this.votes.mint(account1, this.NFT2);
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await this.votes.mint(account1, this.NFT3);
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const total = await this.votes.balanceOf(account1);
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const t1 = await this.votes.delegate(other1, { from: account1 });
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await time.advanceBlock();
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await time.advanceBlock();
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const t2 = await this.votes.transferFrom(account1, other2, this.NFT0, { from: account1 });
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await time.advanceBlock();
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await time.advanceBlock();
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const t3 = await this.votes.transferFrom(account1, other2, this.NFT2, { from: account1 });
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await time.advanceBlock();
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await time.advanceBlock();
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const t4 = await this.votes.transferFrom(other2, account1, this.NFT2, { from: other2 });
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await time.advanceBlock();
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await time.advanceBlock();
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expect(await this.votes.getPastVotes(other1, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0');
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expect(await this.votes.getPastVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal(total);
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expect(await this.votes.getPastVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal(total);
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expect(await this.votes.getPastVotes(other1, t2.receipt.blockNumber)).to.be.bignumber.equal('3');
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expect(await this.votes.getPastVotes(other1, t2.receipt.blockNumber + 1)).to.be.bignumber.equal('3');
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expect(await this.votes.getPastVotes(other1, t3.receipt.blockNumber)).to.be.bignumber.equal('2');
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expect(await this.votes.getPastVotes(other1, t3.receipt.blockNumber + 1)).to.be.bignumber.equal('2');
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expect(await this.votes.getPastVotes(other1, t4.receipt.blockNumber)).to.be.bignumber.equal('3');
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expect(await this.votes.getPastVotes(other1, t4.receipt.blockNumber + 1)).to.be.bignumber.equal('3');
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this.account1Votes = '0';
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this.account2Votes = '0';
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});
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afterEach(async function () {
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expect(await this.votes.getVotes(account1)).to.be.bignumber.equal(this.account1Votes);
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expect(await this.votes.getVotes(account2)).to.be.bignumber.equal(this.account2Votes);
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// need to advance 2 blocks to see the effect of a transfer on "getPastVotes"
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const blockNumber = await time.latestBlock();
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await time.advanceBlock();
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expect(await this.votes.getPastVotes(account1, blockNumber)).to.be.bignumber.equal(this.account1Votes);
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expect(await this.votes.getPastVotes(account2, blockNumber)).to.be.bignumber.equal(this.account2Votes);
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});
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});
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describe('Voting workflow', function () {
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beforeEach(async function () {
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this.account1 = account1;
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this.account1Delegatee = account1Delegatee;
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this.account2 = account2;
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this.name = 'My Vote';
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});
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shouldBehaveLikeVotes();
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});
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});
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