test.js

require('should')
var j = require('./index')

describe('toJalaali', function () {
  it('should convert Gregorian to Jalaali correctly', function () {
    j.toJalaali(1981, 8, 17).should.be.eql({jy: 1360, jm: 5, jd: 26})
    j.toJalaali(2013, 1, 10).should.be.eql({jy: 1391, jm: 10, jd: 21})
    j.toJalaali(2014, 8, 4).should.be.eql({jy: 1393, jm: 5, jd: 13})
  })
})

describe('toGregorian', function () {
  it('should convert Jalaali to Gregorian correctly', function () {
    j.toGregorian(1360, 5, 26).should.be.eql({gy: 1981, gm: 8, gd: 17})
    j.toGregorian(1391, 10, 21).should.be.eql({gy: 2013, gm: 1, gd: 10})
    j.toGregorian(1393, 5, 13).should.be.eql({gy: 2014, gm: 8, gd: 4})
  })
})

describe('isValidJalaaliDate', function () {
  it('should check validity of a Jalaali date', function () {
    j.isValidJalaaliDate(-62, 12, 29).should.be.false
    j.isValidJalaaliDate(-62, 12, 29).should.be.false
    j.isValidJalaaliDate(-61, 1, 1).should.be.true
    j.isValidJalaaliDate(3178, 1, 1).should.be.false
    j.isValidJalaaliDate(3177, 12, 29).should.be.true
    j.isValidJalaaliDate(1393, 0, 1).should.be.false
    j.isValidJalaaliDate(1393, 13, 1).should.be.false
    j.isValidJalaaliDate(1393, 1, 0).should.be.false
    j.isValidJalaaliDate(1393, 1, 32).should.be.false
    j.isValidJalaaliDate(1393, 1, 31).should.be.true
    j.isValidJalaaliDate(1393, 11, 31).should.be.false
    j.isValidJalaaliDate(1393, 11, 30).should.be.true
    j.isValidJalaaliDate(1393, 12, 30).should.be.false
    j.isValidJalaaliDate(1393, 12, 29).should.be.true
    j.isValidJalaaliDate(1395, 12, 30).should.be.true
  })
})

describe('isLeapJalaaliYear', function () {
  it('should check if a Jalaali year is leap or common', function () {
    j.isLeapJalaaliYear(1393).should.be.false
    j.isLeapJalaaliYear(1394).should.be.false
    j.isLeapJalaaliYear(1395).should.be.true
    j.isLeapJalaaliYear(1396).should.be.false
  })
})

describe('jalaaliMonthLength', function () {
  it('should return number of days in a given Jalaali year and month', function () {
    j.jalaaliMonthLength(1393, 1).should.be.exactly(31)
    j.jalaaliMonthLength(1393, 4).should.be.exactly(31)
    j.jalaaliMonthLength(1393, 6).should.be.exactly(31)
    j.jalaaliMonthLength(1393, 7).should.be.exactly(30)
    j.jalaaliMonthLength(1393, 10).should.be.exactly(30)
    j.jalaaliMonthLength(1393, 12).should.be.exactly(29)
    j.jalaaliMonthLength(1394, 12).should.be.exactly(29)
    j.jalaaliMonthLength(1395, 12).should.be.exactly(30)
  })
})