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[MO-java-dev] Exception Encountered when using expectAndReturn with a proxy obj ect as the return value.
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From: Cruz, E. J. <e....@ra...> - 2003-12-11 20:44:41
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Hi,
First I apologize for sending this to this list but the user list
keeps bouncing the message.
I have an interface described below.
interface AccountBusiness {
public UserTo authenticateUser(AccountTo account);
}
interface AccountDao {
public AccountBusiness getAccount(account);
}
I have a method that uses this interface below:
public UserTo authenticateUser(AccountTo account) {
AccountBusiness accountBusiness = null;
accountBusiness = getAccount(account);
/** Some more stuff to perform authentication */
}
private AccountBusiness getAccount(accounTo account) {
AccountBusiness accountBusiness = null;
try {
defaultDaoManager.startTransaction();
/** This is the line that causes the error */
accountBusiness = accountDao.getAccount(account);
defaultDaoManager.commitTransaction();
} catch (DaoException de) {
try {
defaultDaoManager.rollbackTransaction();
} catch (DaoException de2) {
log.error(de.getMessage(), de);
throw new ResourceException(de);
}
return accountBusiness;
}
I am trying to test this method using Mock Objects. I have
the following code to test this:
public class AccountAppServiceTest extends TestCase {
private AccountAppService accountAppService = null;
private AccountTo account = null;
private DaoManager defaultDaoManager = null;
private Mock accountDao = null;
protected void setUp() throws Exception {
super.setUp();
defaultDaoManager = new DaoManagerMock();
accountDao = new Mock(AccountDAO.class);
accountAppService = new AccountAppService
(defaultDaoManager,
(AccountDAO)accountDao.proxy());
account = new AccountTo();
account.setUsername("ecruz");
account.setPassword("testing");
account.setStatus("Active");
account.setBadPasswordCounter(2);
account.setDatePasswordChanged(new Date());
account.setFirstLogin(true);
}
public void testAuthenticateUser() {
//Setup
Mock returnMock = new Mock(AccountBusiness.class);
UserTo expectedUser = new
UserTo(account.getUsername());
List expectedRoles = new ArrayList();
expectedRoles.add("test");
expectedRoles.add("test1");
AccountBusiness returnVal =
(AccountBusiness)returnMock.proxy();
/** Here I tell it to expect the
call to the accountDao getAccount method and to return the AccountBusiness
Mock proxy but I receive the error below.*/
accountDao.expectAndReturn("getAccount",
C.eq(account),
(AccountBusiness)returnMock.proxy());
returnMock.expectAndReturn("authenticateUser",
C.eq(account),
expectedUser);
accountDao.expectAndReturn("getAccountRoles",
C.eq(account), expectedRoles);
UserTo actualUser = null;
//Run
try {
actualUser =
accountAppService.authenticateUser(account);
} catch (Exception e) {
e.printStackTrace();
this.fail("Unexpected Exception
reported " + e.toString());
}
//Validate
this.assertEquals("Unexpected UserName: ",
expectedUser.getUserName(),
actualUser.getUserName());
this.assertEquals("Unexpected Roles: ",
expectedRoles,
actualUser.getRoles());
accountDao.verify();
returnMock.verify();
}
protected void tearDown() throws Exception {
// Set everything to null
}
}
I receive this error when the accountDao.getAccount(account) method
is called above in the private getAccount
method of the AccountAppService.
I use the same type of return value in the expect in another test
case and I do not get any errors.
Any Suggestions on what this may be?
[junit] ------------- Standard Error -----------------
[junit] java.lang.ClassCastException
[junit] at $Proxy0.getAccount(Unknown Source)
[junit] at
gov.wos.domain.account.AccountAppService.getAccount(Unknown Source)
[junit] at
gov.wos.domain.account.AccountAppService.authenticateUser(Unknown Source)
[junit] at
gov.wos.domain.account.AccountAppServiceTest.testAuthenticateUser(Unknown
Source)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
[junit] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
[junit] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
[junit] at java.lang.reflect.Method.invoke(Method.java:324)
[junit] at junit.framework.TestCase.runTest(TestCase.java:154)
[junit] at junit.framework.TestCase.runBare(TestCase.java:127)
[junit] at
junit.framework.TestResult$1.protect(TestResult.java:106)
[junit] at
junit.framework.TestResult.runProtected(TestResult.java:124)
[junit] at junit.framework.TestResult.run(TestResult.java:109)
[junit] at junit.framework.TestCase.run(TestCase.java:118)
[junit] at
junit.framework.TestSuite.runTest(TestSuite.java:208)
[junit] at junit.framework.TestSuite.run(TestSuite.java:203)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRu
nner.java:325)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestR
unner.java:524)
[junit] ------------- ---------------- ---------------
[junit] Testcase:
testAuthenticateUser(gov.wos.domain.account.AccountAppServiceTest): FAILED
[junit] Unexpected Exception reported java.lang.ClassCastException
[junit] junit.framework.AssertionFailedError: Unexpected Exception
reported java.lang.ClassCastException
[junit] at
gov.wos.domain.account.AccountAppServiceTest.testAuthenticateUser(Unknown
Source)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
[junit] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
[junit] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
Jamie Cruz
Software Engineering
e....@ra...
(301)688-1430
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EMAIL;PREF;INTERNET:e....@ra...
REV:20020409T180834Z
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