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85 lines
3.4 KiB
85 lines
3.4 KiB
const { balance, BN, constants, ether, expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
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const { ZERO_ADDRESS } = constants;
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const { expect } = require('chai');
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const AllowanceCrowdsaleImpl = artifacts.require('AllowanceCrowdsaleImpl');
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const SimpleToken = artifacts.require('SimpleToken');
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contract('AllowanceCrowdsale', function ([_, investor, wallet, purchaser, tokenWallet]) {
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const rate = new BN('1');
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const value = ether('0.42');
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const expectedTokenAmount = rate.mul(value);
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const tokenAllowance = new BN('10').pow(new BN('22'));
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beforeEach(async function () {
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this.token = await SimpleToken.new({ from: tokenWallet });
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this.crowdsale = await AllowanceCrowdsaleImpl.new(rate, wallet, this.token.address, tokenWallet);
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await this.token.approve(this.crowdsale.address, tokenAllowance, { from: tokenWallet });
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});
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describe('accepting payments', function () {
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it('should have token wallet', async function () {
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expect(await this.crowdsale.tokenWallet()).to.equal(tokenWallet);
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});
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it('should accept sends', async function () {
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await this.crowdsale.send(value);
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});
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it('should accept payments', async function () {
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await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
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});
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});
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describe('high-level purchase', function () {
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it('should log purchase', async function () {
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const { logs } = await this.crowdsale.sendTransaction({ value: value, from: investor });
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expectEvent.inLogs(logs, 'TokensPurchased', {
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purchaser: investor,
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beneficiary: investor,
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value: value,
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amount: expectedTokenAmount,
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});
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});
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it('should assign tokens to sender', async function () {
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await this.crowdsale.sendTransaction({ value: value, from: investor });
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expect(await this.token.balanceOf(investor)).to.be.bignumber.equal(expectedTokenAmount);
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});
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it('should forward funds to wallet', async function () {
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const balanceTracker = await balance.tracker(wallet);
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await this.crowdsale.sendTransaction({ value, from: investor });
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expect(await balanceTracker.delta()).to.be.bignumber.equal(value);
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});
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});
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describe('check remaining allowance', function () {
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it('should report correct allowance left', async function () {
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const remainingAllowance = tokenAllowance.sub(expectedTokenAmount);
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await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
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expect(await this.crowdsale.remainingTokens()).to.be.bignumber.equal(remainingAllowance);
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});
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context('when the allowance is larger than the token amount', function () {
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beforeEach(async function () {
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const amount = await this.token.balanceOf(tokenWallet);
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await this.token.approve(this.crowdsale.address, amount.addn(1), { from: tokenWallet });
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});
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it('should report the amount instead of the allowance', async function () {
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expect(await this.crowdsale.remainingTokens()).to.be.bignumber.equal(await this.token.balanceOf(tokenWallet));
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});
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});
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});
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describe('when token wallet is the zero address', function () {
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it('creation reverts', async function () {
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this.token = await SimpleToken.new({ from: tokenWallet });
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await expectRevert(AllowanceCrowdsaleImpl.new(rate, wallet, this.token.address, ZERO_ADDRESS),
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'AllowanceCrowdsale: token wallet is the zero address'
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);
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});
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});
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});
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