Definition: The word "unittest" in Greek means "test," which literally translates to "to test." The root of this word comes from the ancient Greek verb "un-" (meaning "without") and "testos" (which is a Latin word meaning "field," "place," "ground")βthe root of "test" and "solar field, field of light." This term originally referred to an inspection or examination carried out on the surface of a land to determine its quality. In modern times, it refers to a rigorous examination that tests something by using various means to evaluate its accuracy, reliability, validity, etc., in a controlled setting.