When developing applications the following can also happen to you. External service not being available, external services not completely finished (yet), external services not having a test environment, no ability to test unhappy flows (like functional error or more technical errors)
So, you might want to test your application in isolation with limited dependencies on external services.
This is where mockhub.io comes in. Mockhub.io allows you to create HTTP response messages using an intuitive form. No programming experience is required when using Mockhub. Mockhub.io works with sophisticated matching criteria to decide what kind of response it should return. Any HTTP response can be set in order to simulate faulty responses. Mocks and their logs can be suspended to allow faster performance.