externalnot

Callable

• not<Actual>(expectation: Expectation<Actual>): Expectation<Actual>

---

• Produces an expectation that negates the provided expectation.

  Ensuring that the actual value does not equal the expected value

  import { actorCalled } from '@serenity-js/core'
  import { Ensure, equals, not } from '@serenity-js/assertions'
  
  const actual   = { name: 'apples' }
  const expected = { name: 'bananas' }
  
  await actorCalled('Ester').attemptsTo(
    Ensure.that(actual, not(equals(expected))),
  )

  ---

  Type parameters

  • Actual

  Parameters

  • externalexpectation: Expectation<Actual>

  Returns Expectation<Actual>