基于测试的JAVA开发案例

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1、BowlingGameKataObjectMentor,Inc.fitnesse.orgCopyright2005byObjectMentor,IncAllcopiesmustretainthispageunchanged.www.junit.orgwww.objectmentor.comblog.objectmentor.comScoringBowling.Thegameconsistsof10framesasshownabove.Ineachframetheplayerhastwoopportunitiestokno

2、ckdown10pins.Thescorefortheframeisthetotalnumberofpinsknockeddown,plusbonusesforstrikesandspares.Aspareiswhentheplayerknocksdownall10pinsintwotries.Thebonusforthatframeisthenumberofpinsknockeddownbythenextroll.Soinframe3above,thescoreis10(thetotalnumberknockeddown

3、)plusabonusof5(thenumberofpinsknockeddownonthenextroll.)Astrikeiswhentheplayerknocksdownall10pinsonhisfirsttry.Thebonusforthatframeisthevalueofthenexttwoballsrolled.Inthetenthframeaplayerwhorollsaspareorstrikeisallowedtorolltheextraballstocompletetheframe.Howevern

4、omorethanthreeballscanberolledintenthframe.TheRequirements.Writeaclassnamed“Game”thathastwomethodsroll(pins:int)iscalledeachtimetheplayerrollsaball.Theargumentisthenumberofpinsknockeddown.score():intiscalledonlyattheveryendofthegame.Itreturnsthetotalscoreforthatga

5、me.AquickdesignsessionClearlyweneedtheGameclass.AquickdesignsessionAgamehas10frames.AquickdesignsessionAframehas1ortworolls.AquickdesignsessionThetenthframehastwoorthreerolls.Itisdifferentfromalltheotherframes.AquickdesignsessionThescorefunctionmustiteratethrougha

6、lltheframes,andcalculatealltheirscores.AquickdesignsessionThescoreforaspareorastrikedependsontheframe’ssuccessorBegin.CreateaprojectnamedBowlingGameCreateaunittestnamedBowlingGameTestimportjunit.framework.TestCase;publicclassBowlingGameTestextendsTestCase{}Begin.C

7、reateaprojectnamedBowlingGameCreateaunittestnamedBowlingGameTestimportjunit.framework.TestCase;publicclassBowlingGameTestextendsTestCase{}Executethisprogramandverifythatyougetthefollowingerror:NotestsfoundinBowlingGameTestThefirsttest.importjunit.framework.TestCas

8、e;publicclassBowlingGameTestextendsTestCase{publicvoidtestGutterGame()throwsException{Gameg=newGame();}}Thefirsttest.importjunit.framework.TestCase;publ