65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
const MathMock = artifacts.require('MathMock');
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const BigNumber = web3.BigNumber;
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require('chai')
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.use(require('chai-bignumber')(BigNumber))
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.should();
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contract('Math', function () {
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const min = 1234;
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const max = 5678;
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beforeEach(async function () {
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this.math = await MathMock.new();
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});
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describe('max', function () {
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it('is correctly detected in first argument position', async function () {
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const result = await this.math.max(max, min);
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result.should.be.bignumber.equal(max);
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});
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it('is correctly detected in second argument position', async function () {
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const result = await this.math.max(min, max);
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result.should.be.bignumber.equal(max);
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});
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});
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describe('min', function () {
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it('is correctly detected in first argument position', async function () {
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const result = await this.math.min(min, max);
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result.should.be.bignumber.equal(min);
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});
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it('is correctly detected in second argument position', async function () {
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const result = await this.math.min(max, min);
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result.should.be.bignumber.equal(min);
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});
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});
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describe('average', function () {
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function bnAverage (a, b) {
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return a.plus(b).div(2).truncated();
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}
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it('is correctly calculated with two odd numbers', async function () {
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const a = new BigNumber(57417);
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const b = new BigNumber(95431);
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(await this.math.average(a, b)).should.be.bignumber.equal(bnAverage(a, b));
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});
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it('is correctly calculated with two even numbers', async function () {
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const a = new BigNumber(42304);
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const b = new BigNumber(84346);
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(await this.math.average(a, b)).should.be.bignumber.equal(bnAverage(a, b));
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});
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it('is correctly calculated with one even and one odd number', async function () {
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const a = new BigNumber(57417);
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const b = new BigNumber(84346);
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(await this.math.average(a, b)).should.be.bignumber.equal(bnAverage(a, b));
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});
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});
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});
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