@eluvio/elv-js-helpers/test/unit/src/Datetime/etaTimeStr.test.js

A collection of Javascript helper functions used by several Eluvio libraries.

const TH = require('../../../test-helpers')
const etaTimeStr = TH.requireSrcFile('Datetime/etaTimeStr')

describe('etaTimeStr', () => {

  const currentTime = new Date('2022-01-01T07:30:00Z')

  it('should return expected values for valid data', () => {
    let timeString = etaTimeStr(currentTime, 10, 'America/Los_Angeles', 'en-US')
    timeString.should.equal('11:30:10 PM PST')

    timeString = etaTimeStr(currentTime, 3600, 'America/Los_Angeles', 'en-US')
    timeString.should.equal('Jan 1, 12:30:00 AM PST')
  })

  it('should run fine when not supplied with zone or locales', () => {
    etaTimeStr(currentTime, 10)
  })

  it('should return "--" for negative secondsLeft', () => {
    const timeString = etaTimeStr(currentTime, -10, 'America/Los_Angeles', 'en-US')
    timeString.should.equal('--')
  })

  it('should throw an exception for invalid Datetime zone', () => {
    TH.expect(()=> etaTimeStr(currentTime, 10, 'foo', 'en-US'))
      .to.throw('Invalid time zone specified: foo')
  })
})