"Compared to unit tests, a test harness is a [usually] simple standalone application that incorporates the system under test, and presents a user interface. Sin

"Compared to unit tests, a test harness is a [usually] simple standalone application that incorporates the system under test, and presents a user interface. Since it is for testing, it may expose internal metrics and allow the user to access parts of the code that are usually hidden." ^ from https://littlegreenviper.com/testing-harness-vs-unit/ https://littlegreenviper.com/testing-harness-vs-unit/