cheke/__tests__/messages/notUUIDMessage.test.js

Express request validator with object's style response body and inspired by Laravel's Validator

const notUUID = require('../../src/messages/notUUIDMessage');

describe('not-a-uuid-message', () => {
  test('should return The userId is not a valid UUID.', () => {
    expect(notUUID('userId')).toBe('The userId is not a valid UUID.');
  });
});