COMP 4004 Lecture Notes - Lecture 1: System Under Test, Hard Stuff, User Story
26 Oct 2018
School
Department
Course
Professor
Document Summary
5a xunit test patterns: agile development cycles, at the time use cases were the way to deal with acceptance testing. In the book have code associated with user stories, making it agile: system under test. Initialize: controllability ability to put a system in a state you want to test, knowing the state of a system, especially when using encapsulation, is not trivial, need to be careful about characterizing states. Have to check the state of the system which can be extremely complicated: teardown. Correctness is crucial, you cannot have a use case in test code otherwise your introducing multiple paths. System functionality will change and thus tests need to be able to change. Tests must be easier to change than the production code. You do not want double effort, so change of functionality should only require a slight change in tests. Ease of changing tests is so important it is even worth the trade off of a performance hit.
