Introduction

A listener asked us to do a unit testing versus hardware in the loop testing throw down. Some of the arguments are too many unit tests do trivial testing that increase code coverage but are contrived and or test things unlikely to break. When writing system level tests, you are less likely to be in the thought mode of the design of individual modules. It is much less sensitive to software refactoring. And it covers much better issues between subsystems and timing where unit testing tends to be weak.