notes

Callable

notes<N>(): NotepadAdapter<N>

Pro tip: notes<T>().get(subject) returns a NotepadAdapter to make accessing the APIs of the underlying type easier. Check NotepadAdapter for more examples.

Working with untyped notes

You can use notes<T>() without parameterising it with an interface describing the structure of your notes.

Note: this approach is not type-safe and the type-safe alternative presented below should be used in most cases.

import { actorCalled, Log, notes, TakeNotes } from '@serenity-js/core';

await actorCalled('Leonard')
  .whoCan(TakeNotes.usingAnEmptyNotepad())
  .attemptsTo(
    notes().set('my_note', 'some value'),

    Log.the(notes().get('my_note')),
    // emits "some value"

    Log.the(notes().get('my_note').toLocaleUpperCase()),
    // emits "SOME VALUE"
  );

Working with typed notes

The recommended way to use notes<T>() is to parameterise it with an interface describing the structure of your notes.

Note: this approach is type-safe.

import { actorCalled, Log, notes, TakeNotes } from '@serenity-js/core';

interface MyNotes {
  username: string;
  token?: string;     // optional value
}

await actorCalled('Leonard')
  .whoCan(TakeNotes.using(Notepad.with<MyNotes>({
    username: 'Leonard.McLaud@example.org',
  }))
  .attemptsTo(
    notes<MyNotes>().set('token', 'my-auth-token')

    Log.the(notes<MyNotes>().get('token').length),
    // emits 13

    Log.the(notes<MyNotes>().get('username').toLocaleLowerCase()),
    // emits 'leonard.mclaud@example.org'
  )

Checking if a note is present

import { actorCalled, Check, notes, TakeNotes } from '@serenity-js/core'
import { isPresent } from '@serenity-js/assertions'

await actorCalled('Leonard')
  .whoCan(TakeNotes.using(Notepad.empty()))
  .attemptsTo(
    Check.whether(notes().get('token'), isPresent())
     .andIfSo(
       Authenticate.using(notes().get('token')),
     )
     .otherwise(
       SignIn.using('username', 'password'),
     )
   )

Working with complex data structures

import { actorCalled, Log, notes, TakeNotes } from '@serenity-js/core'

interface MyNotes {
  recordedItems: string[];
}

await actorCalled('Leonard')
  .whoCan(TakeNotes.using(Notepad.with<MyNotes>({
    recordedItems: [],
  }))
  .attemptsTo(
     // push 3 items
     notes().get('recordedItems').push('apples'),
     notes().get('recordedItems').push('cucumbers'),
     notes().get('recordedItems').push('bananas'),

     // use QuestionAdapter to access Array.sort()
     notes().get('recordedItems').sort(),

     Log.the(notes().get('recordedItems')),
     // emits 'apples', 'bananas', 'cucumbers'
  )

Learn more

Type parameters

N: Record<any, any>