Should provide fake seed for test environment

[lykmapipo]

Motivation:

describe('Event', () => {
  let type;

  before(done => {
    withEventType(type, done);
  });

  it('should create an event', done => {
    const event = Event.fakeWith({ type });
    event.save((error, created) => {
      expect(error).to.not.exist;
      expect(created).to.exist;
      expect(created.type).to.exist.and.be.eql.to(type);
      done(error, saved);
    });
  });

  after(done => clear());
});