java入门编程向求助

kerorokun

2.     /**
3.      * check the player is alive.
4.      *
5.      * @return     if player is dead, return false. Else alive.
6.      */
7.     public boolean isAlive(){
8.         
9.         
10.         if(kill())
11.         {
12.             return false;
13.         } else{
14.         
15.             return true;
16.         }
17.     }
18.     
19.     /**
20.      * check the player is dead.
21.      *
22.      * @return     true.
23.      */
24.     public boolean kill(){
25.         
26.         
27.         return true;
28.     }

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unit test:

2.     public void testIsAlive()
3.     {
4.         assertTrue(player.isAlive());
5.     }
6.     
7.     public void testKill()
8.     {
9.         player.kill();
10.         assertFalse(player.isAlive());
11.     }    

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test后testIsAlive不能通过啊。。。这什么情况啊
逻辑上感觉没问题啊

holywind

isAlive会先执行kill(),
kill() return true;
当然isAlive return false;
你assertTrue当然通不过 因为player.isAlive()会一直是false

kerorokun

3. private boolean alive = true;
4.     /**
5.      * check the player is alive.
6.      *
7.      * @return     if player is dead, return false. Else alive.
8.      */
9.     public boolean isAlive(){
10.         
11.         return alive;
12.     }
13.    
14.     /**
15.      * check the player is dead.
16.      *
17.      *
18.      */
19.     public void kill(){
20.         
21.         alive = false;
22.     }

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这样虽然通过了，但这样真的可以吗？

holywind

kill弄成kill(Player player)
通过player的setAlive方法把他弄死
然后用player.isAlive检验