openzeppelin-contracts/test/LimitBalance.js

'use strict';

var LimitBalanceMock = artifacts.require('helpers/LimitBalanceMock.sol');
const assertJump = require('./helpers/assertJump');

contract('LimitBalance', function(accounts) {
  let lb;

  beforeEach(async function() {
    lb = await LimitBalanceMock.new();
  });

  let LIMIT = 1000;

  it('should expose limit', async function() {
    let limit = await lb.limit();
    assert.equal(limit, LIMIT);
  });

  it('should allow sending below limit', async function() {
    let amount = 1;
    await lb.limitedDeposit({value: amount});

    assert.equal(web3.eth.getBalance(lb.address), amount);
  });

  it('shouldnt allow sending above limit', async function() {
    let amount = 1110;
    try {
       await lb.limitedDeposit({value: amount});
    } catch(error) {
      return assertJump(error);
    }
    assert.fail('should have thrown before');
  });

  it('should allow multiple sends below limit', async function() {
    let amount = 500;
    await lb.limitedDeposit({value: amount});

    assert.equal(web3.eth.getBalance(lb.address), amount);

    await lb.limitedDeposit({value: amount});
    assert.equal(web3.eth.getBalance(lb.address), amount*2);
  });

  it('shouldnt allow multiple sends above limit', async function() {
    let amount = 500;
    await lb.limitedDeposit({value: amount});

    assert.equal(web3.eth.getBalance(lb.address), amount);

    try {
      await lb.limitedDeposit({value: amount+1});
    } catch(error) {
      return assertJump(error);
    }
    assert.fail('should have thrown before');
  });

});