openzeppelin-contracts/test/LimitBalance.js

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;
    let limDeposit = 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 {
      let limDeposit = 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;
    let limDeposit = await lb.limitedDeposit({value: amount});

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

    let limDeposit2 = 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;
    let limDeposit = 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');
  });

});