Unit Testing LEVEL GAME

 Create pieces array  Call move or interact  Use getters or return type to verify correct behavior  Test ends (don’t go GameEngine.BOARD_SIZE-1)  If interact with adjoining piece, put that piece & yours on board  If interact within range, be sure to test locations within range PLUS one beyond TEST INDIVIDUAL PIECES

 Can’t test random behavior deterministically  Need to run method multiple times  Do all possible results actually occur?  Do the possible results account for ALL results? (i.e., no invalid moves)  What if LOTS of valid results? (e.g., any location)  Test ends  Identify “categories” of possibilities  If limited number of possibilities, test each one  E.g., move one to right or left TEST RANDOM MOVEMENT

 What if the player is within “range” of more than one piece?  We’re not testing this, but the approach would be:  Create a GameEngine  Create a pieces array  Add a setter to GameEngine for the pieces array  Call interaction TEST INTERACTION

BLACK BOX VS WHITE BOX CriteriaBlack Box TestingWhite Box Testing Definition Black Box Testing is a software testing method in which the internal structure/ design/ implementation of the item being tested is NOT known to the tester White Box Testing is a software testing method in which the internal structure/ design/ implementation of the item being tested is known to the tester. Levels Applicable To Mainly applicable to higher levels of testing: Acceptance Testing System Testing Mainly applicable to lower levels of testing: Unit Testing Integration Testing ResponsibilityGenerally, independent Software TestersGenerally, Software Developers Programming Knowledge Not RequiredRequired Implementation Knowledge Not RequiredRequired Basis for Test Cases Requirement SpecificationsDetail Design From:

 Analyze control flow graph  Find linearly independent paths of execution  Guarantees complete branch coverage  Does not cover all possible paths   BASIS PATH TESTING (WHITE BOX)

 Method to test all the possible discrete combinations of the parameters involved.  ALL PAIRS TESTING