We, as C/AL programmers, should accept the fact that we have had a very poor culture of testing our code. Microsoft has been trying to get the best possible solution that can replace this culture, and bring in a culture where we will optimize our coding skills:
Coding is not always about a successful code; it also is about whether the code generates the result in an optimal time and without affecting other people's work. Microsoft Dynamics NAV 2016 came up with a modified and concrete solution in the form of automated testing, which is customizable, and allows us to test the system without really putting on an effort. Microsoft has presented this version in a ready-to-implement package of codeunits, which can be run to check if the different processes involved in different transactions are successful or not, thus enabling the personnel to quickly identify the root cause of the problem.