Too Long; Didn't Read
Android development has witnessed massive growth in all these years, and any developer who’s worth his salt will thoroughly test his products before launching them into the market. Unit tests are written by developers, and they’re usually performed in the initial stages (although they can be performed at any point in time throughout the development). Integration testing is a testing method where several individual components are put together (or integrated) and tested together. This testing method can detect any app-wide bugs or even bugs that may have missed.