Class Box<Subject>

expect

• expect<K>(key: K): Expectation<Subject[K]>
• expect(): Expectation<Subject>

• Assert an expectation on the yielded value.

  example

    // Simple expect
    cyr.wrap(2+2).expect().toBe(4)
  
    // Pluck `my.value` from the wrapped subject
    cyr.wrap({ my: { value: 'here' }}).expect('my').its('value').toBe('here')

  Type parameters

  • K: Property<Subject>

  Parameters

  • key: K

    (optional) Property on a previously yielded subject

  Returns Expectation<Subject[K]>

• Returns Expectation<Subject>