If this has to serve why do we test? then the first and foremost answer for both of these will be
- In his 1979 book The Art of Software Testing, Glenford Myers said, "Testing is the process of executing a program with the intent of finding errors."
- Kaner, Falk and Nguyen agreed in their 1999 book, Testing Computer Software (2nd Ed): "The purpose of testing a program is to find problems in it."
so let it be more generic
as James Bach' told us
"Testing: questioning a product in order to evaluate it (Bach version);
-- Regards, Mubbashir