sendMessage: authenticated(AccountsServer, (root, { channelId, content }, {user}) => {
      const messagesArray = messages.get(channelId);
      if (!messagesArray) {
        console.error('channel not found');
        return null;
      }
      const newMessage = {
        id: faker.random.uuid(),
        content,
        creationTime: (new Date()).getTime().toString(),
        author: {
          name: user.profile.name,
          avatar: user.profile.avatar
        },
        channel: {
          id: channelId,
        }
      };

      messagesArray.unshift(newMessage);
      pubsub.publish(CHAT_MESSAGE_SUBSCRIPTION_TOPIC, { chatMessageAdded: newMessage });
      return newMessage;
    }),

describe('injector', () => {
  const elementId = random.uuid()

  test('vaild id', () => {
    const config: any = {
      id: random.alphaNumeric(10),
      host: random.alphaNumeric(15),
      ignore: random.alphaNumeric(15)
    }
    inject(elementId, `a${random.uuid()}`, config) // The attribute key must start with an alphabet.
    expect(document.getElementById(elementId))
  })

  test('ignore domain', () => {
    const config: any = {
      id: random.alphaNumeric(10),
      host: random.alphaNumeric(15),
      ignore: 'about:blank'
    }
    inject(elementId, `a${random.uuid()}`, config) // L13
    expect(document.getElementById(elementId))
  })
})

 return () => faker.random.number(options);

 locale: () => faker.random.locale(),

 public static randomRelationshipType() {
     return faker.random.arrayElement([
         'Business', 'Online Service Provider'
     ]);
 }

 const words = (c) => faker.random.words(c)

 direct: () => faker.random.boolean(),