Running tests on an Android emulator or device is slow! Building, deploying, and launching the app often takes a minute or more. That's no way to do TDD. There must be a better way. Robolectric is a framework that brings fast and reliable unit tests to Android. Tests run inside the JVM on your workstation in seconds. With Robolectric you can write tests like this: @RunWith(RobolectricTestRunner.cl