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February 16, 2016 15:10
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80 lines (72 sloc)
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var Code = require('code')
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var Lab = require('lab')
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var isPositiveInteger = require('../index.js')
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var lab = exports.lab = Lab.script()
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var describe = lab.describe
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var it = lab.it
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var expect = Code.expect
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describe('is-positive-integer', function () {
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it('should return true for positive integers', function (done) {
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expect(isPositiveInteger(1)).to.equal(true)
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expect(isPositiveInteger(10)).to.equal(true)
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expect(isPositiveInteger(100)).to.equal(true)
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expect(isPositiveInteger(1000)).to.equal(true)
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expect(isPositiveInteger(90071992555)).to.equal(true)
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expect(isPositiveInteger(999999999999)).to.equal(true)
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expect(isPositiveInteger(MAX_SAFE_INTEGER)).to.equal(true)
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expect(isPositiveInteger(Number.MAX_VALUE)).to.equal(true)
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done()
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})
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it('should return false for negative integers or zero', function (done) {
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expect(isPositiveInteger(0)).to.equal(false)
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expect(isPositiveInteger(-1)).to.equal(false)
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expect(isPositiveInteger(-10)).to.equal(false)
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expect(isPositiveInteger(-100)).to.equal(false)
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expect(isPositiveInteger(-1000)).to.equal(false)
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expect(isPositiveInteger(new Number(0))).to.equal(false)
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expect(isPositiveInteger(new Number(-12))).to.equal(false)
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done()
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})
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it('should return false for floats', function (done) {
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expect(isPositiveInteger(1.1)).to.equal(false)
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expect(isPositiveInteger(10.1)).to.equal(false)
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expect(isPositiveInteger(100.1)).to.equal(false)
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expect(isPositiveInteger(1000.1)).to.equal(false)
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expect(isPositiveInteger(-1.1)).to.equal(false)
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expect(isPositiveInteger(-10.1)).to.equal(false)
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expect(isPositiveInteger(-100.1)).to.equal(false)
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expect(isPositiveInteger(-1000.1)).to.equal(false)
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done()
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})
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it('should return false for others', function (done) {
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expect(isPositiveInteger(Infinity)).to.equal(false)
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expect(isPositiveInteger({})).to.equal(false)
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expect(isPositiveInteger([])).to.equal(false)
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expect(isPositiveInteger('10')).to.equal(false)
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expect(isPositiveInteger('what')).to.equal(false)
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expect(isPositiveInteger(/what/)).to.equal(false)
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expect(isPositiveInteger(null)).to.equal(false)
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expect(isPositiveInteger(undefined)).to.equal(false)
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expect(isPositiveInteger({ valueOf: function () { return 42 } })).to.equal(false)
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done()
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})
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describe('isSafePositiveInteger', function() {
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it('should return true for positive integers', function (done) {
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expect(isSafePositiveInteger(1)).to.equal(true)
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expect(isSafePositiveInteger(10)).to.equal(true)
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expect(isSafePositiveInteger(100)).to.equal(true)
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expect(isSafePositiveInteger(1000)).to.equal(true)
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expect(isSafePositiveInteger(90071992555)).to.equal(true)
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expect(isSafePositiveInteger(999999999999)).to.equal(true)
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expect(isSafePositiveInteger(MAX_SAFE_INTEGER)).to.equal(true)
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expect(isSafePositiveInteger(Number.MAX_VALUE)).to.equal(false)
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done()
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})
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})
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})