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Refundable post delivery crowdsale (#1543)

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* Fixed unnecessary dependency of RefundableCrowdsaleImpl on ERC20Mintable.

* Added PostDeliveryRefundableCrowdsale.

* Renamed to RefundablePostDeliveryCrowdsale.

* Added deprecation warning.
This commit is contained in:
Nicolás Venturo
2018-12-11 18:07:24 -03:00
committed by Francisco Giordano
parent 70e616db7c
commit 357fded2b5
5 changed files with 152 additions and 17 deletions
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103
test/crowdsale/RefundablePostDeliveryCrowdsale.test.js Normal file
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const time = require('../helpers/time');
const shouldFail = require('../helpers/shouldFail');
const { ether } = require('../helpers/ether');
const BigNumber = web3.BigNumber;
require('chai')
.use(require('chai-bignumber')(BigNumber))
.should();
const RefundablePostDeliveryCrowdsaleImpl = artifacts.require('RefundablePostDeliveryCrowdsaleImpl');
const SimpleToken = artifacts.require('SimpleToken');
contract('RefundablePostDeliveryCrowdsale', function ([_, investor, wallet, purchaser]) {
const rate = new BigNumber(1);
const tokenSupply = new BigNumber('1e22');
const goal = ether(100);
before(async function () {
// Advance to the next block to correctly read time in the solidity "now" function interpreted by ganache
await time.advanceBlock();
});
beforeEach(async function () {
this.openingTime = (await time.latest()) + time.duration.weeks(1);
this.closingTime = this.openingTime + time.duration.weeks(1);
this.afterClosingTime = this.closingTime + time.duration.seconds(1);
this.token = await SimpleToken.new();
this.crowdsale = await RefundablePostDeliveryCrowdsaleImpl.new(
this.openingTime, this.closingTime, rate, wallet, this.token.address, goal
);
await this.token.transfer(this.crowdsale.address, tokenSupply);
});
context('after opening time', function () {
beforeEach(async function () {
await time.increaseTo(this.openingTime);
});
context('with bought tokens below the goal', function () {
const value = goal.sub(1);
beforeEach(async function () {
await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
});
it('does not immediately deliver tokens to beneficiaries', async function () {
(await this.crowdsale.balanceOf(investor)).should.be.bignumber.equal(value);
(await this.token.balanceOf(investor)).should.be.bignumber.equal(0);
});
it('does not allow beneficiaries to withdraw tokens before crowdsale ends', async function () {
await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
});
context('after closing time and finalization', function () {
beforeEach(async function () {
await time.increaseTo(this.afterClosingTime);
await this.crowdsale.finalize();
});
it('rejects token withdrawals', async function () {
await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
});
});
});
context('with bought tokens matching the goal', function () {
const value = goal;
beforeEach(async function () {
await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
});
it('does not immediately deliver tokens to beneficiaries', async function () {
(await this.crowdsale.balanceOf(investor)).should.be.bignumber.equal(value);
(await this.token.balanceOf(investor)).should.be.bignumber.equal(0);
});
it('does not allow beneficiaries to withdraw tokens before crowdsale ends', async function () {
await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
});
context('after closing time and finalization', function () {
beforeEach(async function () {
await time.increaseTo(this.afterClosingTime);
await this.crowdsale.finalize();
});
it('allows beneficiaries to withdraw tokens', async function () {
await this.crowdsale.withdrawTokens(investor);
(await this.crowdsale.balanceOf(investor)).should.be.bignumber.equal(0);
(await this.token.balanceOf(investor)).should.be.bignumber.equal(value);
});
it('rejects multiple withdrawals', async function () {
await this.crowdsale.withdrawTokens(investor);
await shouldFail.reverting(this.crowdsale.withdrawTokens(investor));
});
});
});
});
});