You might know about the infinite monkey theorem. This theorem states that a monkey that hits keys at random on a typewriter keyboard for an infinite amount of time will eventually type a given text, such as the complete works of William Shakespeare. The Android version of this theorem states that a monkey that produces random touches on a device could crash your application in, well, much less than an infinite amount of time.

With this, Android features a monkey application (http://goo.gl/LSWg85) that will generate the random events instead of a real monkey.

The simplest way to run monkey against our application to generate random events is:

$ adb -e shell monkey -p com.blundell.tut -v -v 1000

You will be receiving this output:

Events injected: 1000
:Sending rotation degree=0, persist=false
:Dropped: keys=0 pointers=4 trackballs=0 flips=0 rotations=0
## Network stats: elapsed time=2577ms (0ms mobile, 0ms wifi, 2577ms not connected)
// Monkey finished

The monkey will send events...