When developing mobile applications, our teams often find themselves without an external server for testing apps. Setting up an over-the-wire mock may be a good fit for this particular problem. Developing the HTTP mocks and compiling them into the mobile binary for testing — embedded mobile mocks — enables teams to test their mobile apps when disconnected and with no external dependencies. This technique may require creating an opinionated library based on both the networking library used by the mobile app and your usage of the underlying library.