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From Romain Thouvenin <rthouve...@sfwan.com>
Subject Re: bug with double instance ?
Date Tue, 02 Aug 2005 13:52:45 GMT
I'm now sure this is linked to double instance of test cases : when i 
printed a debug message in the MyTestCase(String theName) constructor, 
it appeared in the server console whereas it did not use it to build 
testSuites.
Cactus does not make an exact copy of the test case, and thus a bad copy 
which results in an NullPointerException.

Except from correcting Cactus, I'm completely unable to find a solution 
to my problem... *gasp*

Romain

Romain Thouvenin a écrit :

> I'm creating a tool to launch tests based on cactus.
> It uses my own test cases which extend ServletTestCase, and these 
> testCases have a field used in test methods.
> But when i launch the test and try to access this field in the setUp 
> method, i get a NullPointerException.
> I've checked with prints and with a debugger, the field is correctly 
> initialized.
>
> I've read that cactus make two instances of test cases. Could it be 
> linked to my problem ?
> How are initialized class varaibles when a second instance of the test 
> case is made ?
>
> To build the TestSuite, i use my own constructor with a code like this :
> # suite.addTest(new MyTestCase("testName", MyClass param));
> and a field of MyTestCase is directly set with param.
>
> I use cactus 1.7, junit 3.8.1 and orion server 2.0.5
> Here is the stack trace
> testAdd(com.aguila.tests.client.ClientTest)java.lang.NullPointerException
>   at com.aguila.tests.client.ClientTest.setUp(ClientTest.java:77)
>   at 
> org.apache.cactus.internal.AbstractCactusTestCase.runBareServer(AbstractCactusTestCase.java:153)

>
>   at 
> org.apache.cactus.internal.server.AbstractWebTestCaller.doTest(AbstractWebTestCaller.java:119)

>
>   at 
> org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody0(AbstractWebTestController.java:93)

>
>   at 
> org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody1$advice(AbstractWebTestController.java:224)

>
>   at 
> org.apache.cactus.internal.server.AbstractWebTestController.handleRequest(AbstractWebTestController.java)

>
>   at 
> org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody2(ServletTestRedirector.java:101)

>
>   at 
> org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody3$advice(ServletTestRedirector.java:224)

>
>   at 
> org.apache.cactus.server.ServletTestRedirector.doPost(ServletTestRedirector.java) 
>
>   at 
> org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody0(ServletTestRedirector.java:72)

>
>   at 
> org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody1$advice(ServletTestRedirector.java:224)

>
>   at 
> org.apache.cactus.server.ServletTestRedirector.doGet(ServletTestRedirector.java) 
>
>   at javax.servlet.http.HttpServlet.service(HttpServlet.java:195)
>   at javax.servlet.http.HttpServlet.service(HttpServlet.java:309)
>   at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
>   at com.evermind._ctb._psd(Unknown Source)
>   at com.evermind._ctb._bqc(Unknown Source)
>   at com.evermind._ax._luc(Unknown Source)
>   at com.evermind._ax._ucb(Unknown Source)
>   at com.evermind._bf.run(Unknown Source)
>
> ClientTest.java:77 and around :
> #protected void setUp () throws Exception {
> #       StartSessionServlet sss = new StartSessionServlet();
> #        sss.init(super.config);
> #        if(super.getInstance() == null) {
> #            System.out.println("instance est null"); //This message 
> is printed in the server console
> #        }
> #        try {
> #            UserInfoBean uib = CollaborateurRep.getInstance().connect(
> #                    super.getInstance().getColLogin(), 
> super.getInstance().getColPass()); //line 77
> #            super.getInstance().setUiBean(uib);
>
> I would be glad to give further informations. I did not provide more 
> java code since it's quite intricate and it would need more 
> informations, but I'm sure super.instance should be not null (it is 
> initialized in constructor and then just accessed with getInstance)
>
> Anyway, could I have more accurate information about the way Cactus 
> instanciate the test case a second time ?
>
> Thanks for your help.
> Romain Thouvenin
>
>
>
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