nostr-tools/nip18.test.js

/* eslint-env jest */

const {nip18, finishEvent, getPublicKey, Kind} = require('./lib/nostr.cjs')

const relayUrl = 'https://relay.example.com'

describe('finishRepostEvent + getRepostedEventPointer + getRepostedEvent', () => {
  const privateKey =
        'd217c1ff2f8a65c3e3a1740db3b9f58b8c848bb45e26d00ed4714e4a0f4ceecf'

  const publicKey = getPublicKey(privateKey)

  const repostedEvent = finishEvent({
    kind: Kind.Text,
    tags: [
      ['e', 'replied event id'],
      ['p', 'replied event pubkey'],
    ],
    content: 'Replied to a post',
    created_at: 1617932115
  }, privateKey)

  it('should create a signed event from a minimal template', () => {
    const template = {
      created_at: 1617932115
    }

    const event = nip18.finishRepostEvent(template, repostedEvent, relayUrl, privateKey)

    expect(event.kind).toEqual(Kind.Repost)
    expect(event.tags).toEqual([
      [
        'e',
        repostedEvent.id,
        relayUrl,
      ],
      [
        'p',
        repostedEvent.pubkey,
      ],
    ])
    expect(event.content).toEqual(JSON.stringify(repostedEvent))
    expect(event.created_at).toEqual(template.created_at)
    expect(event.pubkey).toEqual(publicKey)
    expect(typeof event.id).toEqual('string')
    expect(typeof event.sig).toEqual('string')

    const repostedEventPointer = nip18.getRepostedEventPointer(event)

    expect(repostedEventPointer.id).toEqual(repostedEvent.id)
    expect(repostedEventPointer.author).toEqual(repostedEvent.pubkey)
    expect(repostedEventPointer.relays).toEqual([ relayUrl ])

    const repostedEventFromContent = nip18.getRepostedEvent(event)

    expect(repostedEventFromContent).toEqual(repostedEvent)
  })

  it('should create a signed event from a filled template', () => {
    const template = {
      tags: [
        ['nonstandard', 'tag'],
      ],
      content: '',
      created_at: 1617932115
    }

    const event = nip18.finishRepostEvent(template, repostedEvent, relayUrl, privateKey)

    expect(event.kind).toEqual(Kind.Repost)
    expect(event.tags).toEqual([
      [
        'nonstandard',
        'tag',
      ],
      [
        'e',
        repostedEvent.id,
        relayUrl,
      ],
      [
        'p',
        repostedEvent.pubkey,
      ],
    ])
    expect(event.content).toEqual('')
    expect(event.created_at).toEqual(template.created_at)
    expect(event.pubkey).toEqual(publicKey)
    expect(typeof event.id).toEqual('string')
    expect(typeof event.sig).toEqual('string')

    const repostedEventPointer = nip18.getRepostedEventPointer(event)

    expect(repostedEventPointer.id).toEqual(repostedEvent.id)
    expect(repostedEventPointer.author).toEqual(repostedEvent.pubkey)
    expect(repostedEventPointer.relays).toEqual([ relayUrl ])

    const repostedEventFromContent = nip18.getRepostedEvent(event)

    expect(repostedEventFromContent).toEqual(undefined)
  })
})

describe('getRepostedEventPointer', () => {
  it('should parse an event with only an `e` tag', () => {
    const event = {
      kind: Kind.Repost,
      tags: [
        ['e', 'reposted event id', relayUrl],
      ],
    }

    const repostedEventPointer = nip18.getRepostedEventPointer(event)

    expect(repostedEventPointer.id).toEqual('reposted event id')
    expect(repostedEventPointer.author).toEqual(undefined)
    expect(repostedEventPointer.relays).toEqual([ relayUrl ])
  })
})