72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
const assertJump = require('./helpers/assertJump');
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var SafeMathMock = artifacts.require("./helpers/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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let mult = 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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let add = 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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let subtract = 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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let subtract = await safeMath.subtract(a, b);
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} catch(error) {
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return assertJump(error);
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}
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assert.fail('should have thrown before');
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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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try {
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let add = await safeMath.add(a, b);
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} catch(error) {
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return assertJump(error);
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}
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assert.fail('should have thrown before');
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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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try {
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let multiply = await safeMath.multiply(a, b);
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} catch(error) {
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return assertJump(error);
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}
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assert.fail('should have thrown before');
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});
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});
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