Sanity Test

Sanity Test
Basic test to quickly evaluate whether a claim or the result of a calculation can possibly be true. It is a simple check to see if the produce materiel is rational (that the material's creator was thinking rationally, applying sanity). The point of a sanity test is to rule out certain classes of obviously false results, not to catch every possible error. A rule-of-thumb may be check to perform the test.

Advantage of Sanity Test


In Arithmetic
Sanity Test over performing a complete or rigorous test, is speed. In arithmetic, for example, when multiplying by 9, using divisibility rule for 9 to verify that the sum of digits of the result is divisible by 9 is a sanity test - it will not catch every multiplication error but it's quick and simple method to discover many possible errors.

In Science
The sanity test is very brief run-through of the functionality of a computer program, system, calculation, or other analysis, to ensure that part of the system or methodology work roughly as expected.

Co-founder and CEO, Apple Inc

"When I was 17, I read a quote that went something like: "If you live each day as if it was your last, someday you'll most certainly be right." It made an impression on me, and since then, for the past 33 years, I have looked in the mirror every morning and asked myself: "If today were the last day of my life, would I want to do what I am about to do today?" And whenever the answer has been "No" for too many days in a row, I know I need to change something.
Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything -- all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important. Remembering that you are going to die is the best way I know to avoid the trap of thinking you have something to lose. You are already naked. There is no reason not to follow your heart." - Steve Jobs