61 lines
1.6 KiB
JavaScript
61 lines
1.6 KiB
JavaScript
import assertRevert from './helpers/assertRevert';
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const assertJump = require('./helpers/assertJump');
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var SafeMathMock = artifacts.require('mocks/SafeMathMock.sol');
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contract('SafeMath', function (accounts) {
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let safeMath;
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before(async function () {
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safeMath = await SafeMathMock.new();
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});
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it('multiplies correctly', async function () {
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let a = 5678;
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let b = 1234;
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await safeMath.multiply(a, b);
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let result = await safeMath.result();
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assert.equal(result, a * b);
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});
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it('adds correctly', async function () {
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let a = 5678;
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let b = 1234;
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await safeMath.add(a, b);
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let result = await safeMath.result();
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assert.equal(result, a + b);
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});
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it('subtracts correctly', async function () {
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let a = 5678;
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let b = 1234;
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await safeMath.subtract(a, b);
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let result = await safeMath.result();
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assert.equal(result, a - b);
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});
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it('should throw an error if subtraction result would be negative', async function () {
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let a = 1234;
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let b = 5678;
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try {
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await safeMath.subtract(a, b);
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assert.fail('should have thrown before');
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} catch (error) {
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assertJump(error);
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}
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});
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it('should throw an error on addition overflow', async function () {
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let a = 115792089237316195423570985008687907853269984665640564039457584007913129639935;
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let b = 1;
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await assertRevert(safeMath.add(a, b));
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});
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it('should throw an error on multiplication overflow', async function () {
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let a = 115792089237316195423570985008687907853269984665640564039457584007913129639933;
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let b = 2;
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await assertRevert(safeMath.multiply(a, b));
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});
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});
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