Sanity test
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A sanity test or "smoke test" is a brief run-through of the main functionality of a computer program or other product. It gives a measure of confidence that the system works as expected prior to a more exhaustive round of testing.
Also, the name sanity test has been used to refer to various order of magnitude and other simple rule of thumb devices applied to cross-check mathematical calculations. For example, 7382 cannot be equal to 53,874 since 3002 is 90,000; the power output of a car cannot be 700 kJ since that is a unit of energy, not power (energy per unit time) and 918 x 155 is not 142135 since 918 divides by three but the answer does not (digits do not add up to a multiple of three). Similarly, a genealogy that contains four generations spanning only thirty years, or only two generations spanning a hundred years, is probably incorrect.Template:Compu-stub