text: const { ether } = require('../helpers/ether');
  const { expectThrow } = require('../helpers/expectThrow');
  const { EVMRevert } = require('../helpers/EVMRevert');
  
  const BigNumber = web3.BigNumber;
  
  require('chai')
    .use(require('chai-bignumber')(BigNumber))
    .should();
  
  const CappedCrowdsaleImpl = artifacts.require('CappedCrowdsaleImpl');
  const SimpleToken = artifacts.require('SimpleToken');
  
  contract('CappedCrowdsale', function ([_, wallet]) {
    const rate = new BigNumber(1);
    const cap = ether(100);
    const lessThanCap = ether(60);
    const tokenSupply = new BigNumber('1e22');
  
    beforeEach(async function () {
      this.token = await SimpleToken.new();
    });
  
    it('rejects a cap of zero', async function () {
      await expectThrow(
        CappedCrowdsaleImpl.new(rate, wallet, this.token.address, 0),
        EVMRevert,
      );
    });
  
    context('with crowdsale', function () {
      beforeEach(async function () {
        this.crowdsale = await CappedCrowdsaleImpl.new(rate, wallet, this.token.address, cap);
        await this.token.transfer(this.crowdsale.address, tokenSupply);
      });
  
      describe('accepting payments', function () {
        it('should accept payments within cap', async function () {
          await this.crowdsale.send(cap.minus(lessThanCap));
          await this.crowdsale.send(lessThanCap);
        });
  
        it('should reject payments outside cap', async function () {
          await this.crowdsale.send(cap);
          await expectThrow(
            this.crowdsale.send(1),
            EVMRevert,
          );
        });
  
        it('should reject payments that exceed cap', async function () {
          await expectThrow(
            this.crowdsale.send(cap.plus(1)),
            EVMRevert,
          );
        });
      });
  
      describe('ending', function () {
        it('should not reach cap if sent under cap', async function () {
          await this.crowdsale.send(lessThanCap);
          (await this.crowdsale.capReached()).should.equal(false);
        });
  
        it('should not reach cap if sent just under cap', async function () {
          await this.crowdsale.send(cap.minus(1));
          (await this.crowdsale.capReached()).should.equal(false);
        });
  
        it('should reach cap if cap sent', async function () {
          await this.crowdsale.send(cap);
          (await this.crowdsale.capReached()).should.equal(true);
        });
      });
    });
  });
  