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@@ -0,0 +1,103 @@
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+const time = require('../helpers/time');
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+const shouldFail = require('../helpers/shouldFail');
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+const { ether } = require('../helpers/ether');
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+
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+const BigNumber = web3.BigNumber;
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+
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+require('chai')
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+ .use(require('chai-bignumber')(BigNumber))
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+ .should();
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+
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+const RefundablePostDeliveryCrowdsaleImpl = artifacts.require('RefundablePostDeliveryCrowdsaleImpl');
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+const SimpleToken = artifacts.require('SimpleToken');
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+
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+contract('RefundablePostDeliveryCrowdsale', function ([_, investor, wallet, purchaser]) {
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+ const rate = new BigNumber(1);
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+ const tokenSupply = new BigNumber('1e22');
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+ const goal = ether(100);
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+
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+ before(async function () {
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+ // Advance to the next block to correctly read time in the solidity "now" function interpreted by ganache
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+ await time.advanceBlock();
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+ });
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+
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+ beforeEach(async function () {
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+ this.openingTime = (await time.latest()) + time.duration.weeks(1);
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+ this.closingTime = this.openingTime + time.duration.weeks(1);
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+ this.afterClosingTime = this.closingTime + time.duration.seconds(1);
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+ this.token = await SimpleToken.new();
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+ this.crowdsale = await RefundablePostDeliveryCrowdsaleImpl.new(
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+ this.openingTime, this.closingTime, rate, wallet, this.token.address, goal
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+ );
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+ await this.token.transfer(this.crowdsale.address, tokenSupply);
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+ });
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+
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+ context('after opening time', function () {
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+ beforeEach(async function () {
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+ await time.increaseTo(this.openingTime);
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+ });
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+
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+ context('with bought tokens below the goal', function () {
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+ const value = goal.sub(1);
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+
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+ beforeEach(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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+ it('does not immediately deliver tokens to beneficiaries', async function () {
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+ (await this.crowdsale.balanceOf(investor)).should.be.bignumber.equal(value);
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+ (await this.token.balanceOf(investor)).should.be.bignumber.equal(0);
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+ });
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+
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+ it('does not allow beneficiaries to withdraw tokens before crowdsale ends', async function () {
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+ await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
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+ });
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+
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+ context('after closing time and finalization', function () {
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+ beforeEach(async function () {
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+ await time.increaseTo(this.afterClosingTime);
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+ await this.crowdsale.finalize();
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+ });
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+
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+ it('rejects token withdrawals', async function () {
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+ await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
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+ });
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+ });
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+ });
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+
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+ context('with bought tokens matching the goal', function () {
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+ const value = goal;
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+
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+ beforeEach(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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+ it('does not immediately deliver tokens to beneficiaries', async function () {
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+ (await this.crowdsale.balanceOf(investor)).should.be.bignumber.equal(value);
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+ (await this.token.balanceOf(investor)).should.be.bignumber.equal(0);
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+ });
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+
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+ it('does not allow beneficiaries to withdraw tokens before crowdsale ends', async function () {
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+ await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
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+ });
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+
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+ context('after closing time and finalization', function () {
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+ beforeEach(async function () {
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+ await time.increaseTo(this.afterClosingTime);
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+ await this.crowdsale.finalize();
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+ });
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+
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+ it('allows beneficiaries to withdraw tokens', async function () {
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+ await this.crowdsale.withdrawTokens(investor);
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+ (await this.crowdsale.balanceOf(investor)).should.be.bignumber.equal(0);
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+ (await this.token.balanceOf(investor)).should.be.bignumber.equal(value);
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+ });
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+
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+ it('rejects multiple withdrawals', async function () {
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+ await this.crowdsale.withdrawTokens(investor);
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+ await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
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+ });
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+ });
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+ });
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+ });
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+});
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