Well, slower test suite is a nightmare both in your local machine and in your CI server. If your gem provider has built some Mocking APIs then its cool. But, no mocking API and you are writing Unit Test for your models and controller then beware, do not leave your app making HTTP requests everytime.
What to do?
If you cannot mock your library then mock the damn Internet. Simple enough! you can get going in a couple of minutes. Continue reading