November 2011CSC7302: Testing & MetricsL1-HangmanProblem:1 Hangman: apps, webpages,adverts,scams, …but usually just a fun game Variations: Clues/Themes Number of errors Types of error Real-time Arcade style/Interactive Multiplayer

November 2011CSC7302: Testing & MetricsL1-HangmanProblem:2 Hangman PBL: Learning Objectives Understanding the structural relationships between: Code Test (code) Problem/Requirements Can we have objective measurements that correlate with the quality of code: Correctness Understandibility/Maintainability/Testability Understand the impact of OO on the quality of the code and tests Composition Inheritance Polymorphism

November 2011CSC7302: Testing & MetricsL1-HangmanProblem:3 Hangman Problem You are to produce multiple versions of the hangman game (all in Java): 1.Unstructured (non OO): 1 class and 1 method You can use standard library classes but are allowed to define only one class and one method of your own 2.Overlystructured (too OO): over-use of high-level OO programming concepts Too much inheritance and/or composition and/or … 3.Well-designed (perfectly OO): a solution that is as high-quality as you can manage You must produce at least one example from each of these three types of solution (but may have multiple versions of each type) Development Rules: All versions must pass exactly the same set of tests. The tests should be developed before the solutions are coded. The test code can be structured in whatever way you wish but it must not contain any code upon which the correct functioning of the game depends

November 2011CSC7302: Testing & MetricsL1-HangmanProblem:4 Hangman Problem All remaining sessions (from me) are built on top of this problem so you must have solutions ASAP (individually or collectively): Today – great Before next class – fine End of next class – the practical limit We cannot proceed unless your different versions all pass the same test code, and the test code is both complete and consistent with respect to the game rules. Note: please document the order in which you develop your solutions. This will be important in our later analysis.