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openzeppelin-contracts/test/TokenVesting.js

58 lines
2.0 KiB

const BigNumber = web3.BigNumber
require('chai')
.use(require('chai-as-promised'))
.use(require('chai-bignumber')(BigNumber))
.should();
import EVMThrow from './helpers/EVMThrow'
import latestTime from './helpers/latestTime';
import {increaseTimeTo, duration} from './helpers/increaseTime';
const MintableToken = artifacts.require('MintableToken');
const TokenVesting = artifacts.require('TokenVesting');
contract('TokenVesting', function ([_, owner, beneficiary]) {
const amount = new BigNumber(1000);
beforeEach(async function () {
this.token = await MintableToken.new({ from: owner });
this.cliff = latestTime() + duration.years(1);
this.end = latestTime() + duration.years(2);
this.vesting = await TokenVesting.new(beneficiary, this.cliff, this.end, { from: owner });
this.start = latestTime(); // gets the timestamp at construction
await this.token.mint(this.vesting.address, amount, { from: owner });
});
it('cannot be released before cliff', async function () {
await this.vesting.release(this.token.address).should.be.rejectedWith(EVMThrow);
});
it('can be released after cliff', async function () {
await increaseTimeTo(this.cliff + duration.weeks(1));
await this.vesting.release(this.token.address).should.be.fulfilled;
});
it('should release proper amount after cliff', async function () {
await increaseTimeTo(this.cliff);
const { receipt } = await this.vesting.release(this.token.address);
const releaseTime = web3.eth.getBlock(receipt.blockNumber).timestamp;
const balance = await this.token.balanceOf(beneficiary);
balance.should.bignumber.equal(amount.mul(releaseTime - this.start).div(this.end - this.start).floor());
});
it('should have released all after end', async function () {
await increaseTimeTo(this.end);
await this.vesting.release(this.token.address);
const balance = await this.token.balanceOf(beneficiary);
balance.should.bignumber.equal(amount);
});
});