White-box testing The real point is that tests are usually designed from an abstract structure such as the input space, a graph, or logical predicates, and the question is what level of abstraction we derive that abstract structure from. That can be the source code, requirements, input space descriptions, or one of dozens of types of design models. Therefore, the "white-box / black-box" distinction is less important and the terms are less relevant. In penetration testing, white-box testing refers to a methodology where a white hat hacker has full knowledge of the system being attacked. The goal of a white-box penetration test
Black and white (police vehicle) painted white. However, motorcycles are usually all white and riot control and rescue vehicles are painted a steel blue. All Traffic Police cars of the Ministry of Transport throughout the 1970s and 1980s were black with white doors and roof. This distinguished them from the all white cars of the New Zealand Police. The Traffic enforcement functions of the MOT were merged into the New Zealand Police in 1992. Today NZ Police vehicles are single colour, usually white, often with Battenberg markings. Until the middle 1990s, the vehicles of the Lisbon Municipal Police were painted with the same pattern of