Function freezeTime

test/relative-time.js:7–24

(expected)

  let dateNow

  function freezeTime(expected) {
    dateNow = Date

    function MockDate(...args) {
      if (args.length) {
        return new dateNow(...args)
      }
      return new dateNow(expected)
    }

    MockDate.UTC = dateNow.UTC
    MockDate.parse = dateNow.parse
    MockDate.now = () => expected.getTime()
    MockDate.prototype = dateNow.prototype

    // eslint-disable-next-line no-global-assign
    Date = MockDate
  }

  let fixture
  suiteSetup(() => {