isBefore

Callable

• isBefore(...answerableArguments: [expected: Answerable<Date | Timestamp>]): Expectation<Date | Timestamp>

---

• Creates an expectation that is met when the actual value of type Date is before the expected Date.

  Ensuring that a given date is after the expected date

  import { actorCalled } from '@serenity-js/core'
  import { Ensure, isBefore } from '@serenity-js/assertions'
  
  await actorCalled('Ester').attemptsTo(
    Ensure.that(new Date('1995-01-01'), isBefore(new Date('2022-01-01'))),
  )

  Ensuring that a given date is within the expected date range

  import { actorCalled, Expectation, d } from '@serenity-js/core'
  import { Ensure, and, isAfter, isBefore } from '@serenity-js/assertions'
  
  const isWithinDateRange = (lowerBound: Answerable<Date>, upperBound: Answerable<Date>) =>
    Expectation.to(d`have value that is between ${ lowerBound } and ${ upperBound }`)
      .soThatActual(
        and(isAfter(lowerBound), isBefore(upperBound))
      ),
  
  await actorCalled('Ester').attemptsTo(
    Ensure.that(
      new Date('2022-01-01'),
      isWithinDateRange(new Date('1995-01-01'), new Date('2025-01-01'))
    ),
  )

  ---

  Parameters

  • rest...answerableArguments: [expected: Answerable<Date | Timestamp>]

  Returns Expectation<Date | Timestamp>