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openzeppelin-contracts/test/crowdsale/Crowdsale.test.js

81 lines
3.2 KiB

import ether from '../helpers/ether';
const BigNumber = web3.BigNumber;
const should = require('chai')
.use(require('chai-as-promised'))
.use(require('chai-bignumber')(BigNumber))
.should();
const Crowdsale = artifacts.require('Crowdsale');
const SimpleToken = artifacts.require('SimpleToken');
contract('Crowdsale', function ([_, investor, wallet, purchaser]) {
const rate = new BigNumber(1);
const value = ether(42);
const tokenSupply = new BigNumber('1e22');
const expectedTokenAmount = rate.mul(value);
beforeEach(async function () {
this.token = await SimpleToken.new();
this.crowdsale = await Crowdsale.new(rate, wallet, this.token.address);
await this.token.transfer(this.crowdsale.address, tokenSupply);
});
describe('accepting payments', function () {
it('should accept payments', async function () {
await this.crowdsale.send(value).should.be.fulfilled;
await this.crowdsale.buyTokens(investor, { value: value, from: purchaser }).should.be.fulfilled;
});
});
describe('high-level purchase', function () {
it('should log purchase', async function () {
const { logs } = await this.crowdsale.sendTransaction({ value: value, from: investor });
const event = logs.find(e => e.event === 'TokenPurchase');
should.exist(event);
event.args.purchaser.should.equal(investor);
event.args.beneficiary.should.equal(investor);
event.args.value.should.be.bignumber.equal(value);
event.args.amount.should.be.bignumber.equal(expectedTokenAmount);
});
it('should assign tokens to sender', async function () {
await this.crowdsale.sendTransaction({ value: value, from: investor });
let balance = await this.token.balanceOf(investor);
balance.should.be.bignumber.equal(expectedTokenAmount);
});
it('should forward funds to wallet', async function () {
const pre = web3.eth.getBalance(wallet);
await this.crowdsale.sendTransaction({ value, from: investor });
const post = web3.eth.getBalance(wallet);
post.minus(pre).should.be.bignumber.equal(value);
});
});
describe('low-level purchase', function () {
it('should log purchase', async function () {
const { logs } = await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
const event = logs.find(e => e.event === 'TokenPurchase');
should.exist(event);
event.args.purchaser.should.equal(purchaser);
event.args.beneficiary.should.equal(investor);
event.args.value.should.be.bignumber.equal(value);
event.args.amount.should.be.bignumber.equal(expectedTokenAmount);
});
it('should assign tokens to beneficiary', async function () {
await this.crowdsale.buyTokens(investor, { value, from: purchaser });
const balance = await this.token.balanceOf(investor);
balance.should.be.bignumber.equal(expectedTokenAmount);
});
it('should forward funds to wallet', async function () {
const pre = web3.eth.getBalance(wallet);
await this.crowdsale.buyTokens(investor, { value, from: purchaser });
const post = web3.eth.getBalance(wallet);
post.minus(pre).should.be.bignumber.equal(value);
});
});
});