Wikipedia disagrees with that definition: "Intuitively, one can view a unit as the smallest testable part of an application. In procedural programming, a unit

Wikipedia disagrees with that definition: "Intuitively, one can view a unit as the smallest testable part of an application. In procedural programming, a unit could be an entire module, but it is more commonly an individual function or procedure. In object-oriented programming, a unit is often an entire interface, such as a class, but could be an individual method.[2] Unit tests are short code fragments[3] created by programmers or occasionally by white box testers during the development process. It forms the basis for component testing.[4] Ideally, each test case is independent from the others. Substitutes such as method stubs, mock objects,[5] fakes, and test harnesses can be used to assist testing a module in isolation. Unit tests are typically written and run by software developers to ensure that code meets its design and behaves as intended." https://en.wikipedia.org/wiki/Unit_testing https://en.wikipedia.org/wiki/Unit_testing