60 lines
1.9 KiB
JavaScript
60 lines
1.9 KiB
JavaScript
const { contract } = require('@openzeppelin/test-environment');
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const { BN } = require('@openzeppelin/test-helpers');
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const { expect } = require('chai');
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const MathMock = contract.fromArtifact('MathMock');
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describe('Math', function () {
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const min = new BN('1234');
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const max = new BN('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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expect(await this.math.max(max, min)).to.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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expect(await this.math.max(min, max)).to.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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expect(await this.math.min(min, max)).to.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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expect(await this.math.min(max, min)).to.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.add(b).divn(2);
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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 BN('57417');
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const b = new BN('95431');
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expect(await this.math.average(a, b)).to.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 BN('42304');
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const b = new BN('84346');
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expect(await this.math.average(a, b)).to.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 BN('57417');
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const b = new BN('84346');
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expect(await this.math.average(a, b)).to.be.bignumber.equal(bnAverage(a, b));
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});
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});
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});
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