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105 lines
4.0 KiB
105 lines
4.0 KiB
const { BN, ether, expectRevert, time } = require('@openzeppelin/test-helpers');
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const { expect } = require('chai');
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const RefundablePostDeliveryCrowdsaleImpl = artifacts.require('RefundablePostDeliveryCrowdsaleImpl');
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const SimpleToken = artifacts.require('SimpleToken');
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contract('RefundablePostDeliveryCrowdsale', function ([_, investor, wallet, purchaser]) {
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const rate = new BN(1);
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const tokenSupply = new BN('10').pow(new BN('22'));
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const goal = ether('100');
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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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beforeEach(async function () {
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this.openingTime = (await time.latest()).add(time.duration.weeks(1));
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this.closingTime = this.openingTime.add(time.duration.weeks(1));
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this.afterClosingTime = this.closingTime.add(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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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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context('with bought tokens below the goal', function () {
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const value = goal.subn(1);
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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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it('does not immediately deliver tokens to beneficiaries', async function () {
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expect(await this.crowdsale.balanceOf(investor)).to.be.bignumber.equal(value);
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expect(await this.token.balanceOf(investor)).to.be.bignumber.equal('0');
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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 expectRevert(this.crowdsale.withdrawTokens(investor),
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'RefundablePostDeliveryCrowdsale: not finalized'
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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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it('rejects token withdrawals', async function () {
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await expectRevert(this.crowdsale.withdrawTokens(investor),
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'RefundablePostDeliveryCrowdsale: goal not reached'
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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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beforeEach(async function () {
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await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
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});
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it('does not immediately deliver tokens to beneficiaries', async function () {
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expect(await this.crowdsale.balanceOf(investor)).to.be.bignumber.equal(value);
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expect(await this.token.balanceOf(investor)).to.be.bignumber.equal('0');
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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 expectRevert(this.crowdsale.withdrawTokens(investor),
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'RefundablePostDeliveryCrowdsale: not finalized'
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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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it('allows beneficiaries to withdraw tokens', async function () {
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await this.crowdsale.withdrawTokens(investor);
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expect(await this.crowdsale.balanceOf(investor)).to.be.bignumber.equal('0');
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expect(await this.token.balanceOf(investor)).to.be.bignumber.equal(value);
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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 expectRevert(this.crowdsale.withdrawTokens(investor),
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'PostDeliveryCrowdsale: beneficiary is not due any tokens'
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);
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});
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});
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});
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});
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});
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