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90 lines
3.5 KiB
90 lines
3.5 KiB
const expectEvent = require('../helpers/expectEvent');
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const { ether } = require('../helpers/ether');
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const shouldFail = require('../helpers/shouldFail');
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const { balanceDifference } = require('../helpers/balanceDifference');
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const { ZERO_ADDRESS } = require('../helpers/constants');
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const BigNumber = web3.BigNumber;
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require('chai')
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.use(require('chai-bignumber')(BigNumber))
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.should();
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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 BigNumber(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 BigNumber('1e22');
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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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(await this.crowdsale.tokenWallet()).should.be.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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(await this.token.balanceOf(investor)).should.be.bignumber.equal(expectedTokenAmount);
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});
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it('should forward funds to wallet', async function () {
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(await balanceDifference(wallet, () =>
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this.crowdsale.sendTransaction({ value, from: investor }))
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).should.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 allowace left', async function () {
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const remainingAllowance = tokenAllowance - expectedTokenAmount;
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await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
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(await this.crowdsale.remainingTokens()).should.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.plus(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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(await this.crowdsale.remainingTokens()).should.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 different from token 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 shouldFail.reverting(AllowanceCrowdsaleImpl.new(rate, wallet, this.token.address, ZERO_ADDRESS));
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});
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});
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});
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