RailwayTimeConversion.test.js

import { RailwayTimeConversion } from '../RailwayTimeConversion'

test('The RailwayTimeConversion of 07:05:45AM is 07:05:45', () => {
  const res = RailwayTimeConversion('07:05:45AM')
  expect(res).toEqual('07:05:45')
})

test('The RailwayTimeConversion of 07:05:45PM is 19:05:45', () => {
  const res = RailwayTimeConversion('07:05:45PM')
  expect(res).toEqual('19:05:45')
})

test('The RailwayTimeConversion of 10:20:00AM is 10:20:00', () => {
  const res = RailwayTimeConversion('10:20:00AM')
  expect(res).toEqual('10:20:00')
})

test('The RailwayTimeConversion of 11:20:00PM is 23:20:00', () => {
  const res = RailwayTimeConversion('11:20:00PM')
  expect(res).toEqual('23:20:00')
})

test('The RailwayTimeConversion throws when input is not a string', () => {
  expect(() => RailwayTimeConversion(1120)).toThrowError()
})