Any development process is incomplete without quality and performance assurance. Testing is the phase of development where the game needs to be verified technically and logically to see whether it can perform in the real market.
The phases of testing, debugging, and profiling the game ensures the best possible quality of the game for the targeted Android platform range. Often, an Android game works on few Android devices but not on all targeted devices. The developer can identify and resolve the issues for some specific devices through a detailed testing procedure.
