powermock and easy mock not working

[Darvesh Niz]

Hello Guys

i am trying to run powermock and easy mock to mock some final classes which are singleton, i am stuck and also ways error
Here is my maven dependency wiht version. an

            <dependency>
                <groupId>org.easymock</groupId>
                <artifactId>easymock</artifactId>
                <scope>test</scope>
                <version>3.0</version>
            </dependency>           

            <dependency>
                <groupId>org.powermock</groupId>
                <artifactId>powermock-easymock-release-full</artifactId>
                <scope>test</scope>
                <version>1.4.8</version>
                <classifier>full</classifier>
            </dependency>

The class i am trying to test is AuthUtility which has one class IdentityContext which is singleton and declared as final


public final class AuthUtility {
private static final Logger logger = Logger.getLogger(AuthUtility.class);

private AuthUtility() {
}

public static UserInfo retrieveUser(String email) {
UserService userService = (UserService) IdentityContext.getInstance().getApplicationContext().getBean("userService");
UserInfo userInfo = new UserInfo();
try {
User user = userService.getUserWithApplicationRoles(email);
userInfo.setUser(user);
return userInfo;
} catch(Exception e) {
logger.error("User: " + email + " retrieve failed. ", e);
}
return null;
}

public static boolean isLoggedIn(HttpServletRequest request, HttpServletResponse response) {
IdCookieService cookieService = (IdCookieService) IdentityContext.getInstance().getApplicationContext().getBean("cookieService");
String edmid = UserTrack.getCookieValue(IdentityConstants.COOKIE_EDMID, true, request);
if (edmid != null && !StringUtils.isEmpty(edmid)) {
if (cookieService.isMember(request, response)){
return true;
}
}
return false;
}


}

Final Class as singleton

public final class IdentityContext {

    private static IdentityContext _instance = new IdentityContext();

    private ApplicationContext applicationContext = null;

    
    private IdentityContext() {
    }

    /**
     * returns singleton instance
     * 
     * @return IdentityContext: returns its own singleton instance
     *
     */
    public static IdentityContext getInstance() {
        return _instance;
    }


    public ApplicationContext getApplicationContext() {
        if(applicationContext == null) {
            applicationContext = new ClassPathXmlApplicationContext("com/xxx/identity/identity-context.xml");
        }
        return applicationContext;
    }
}

The test class

import com.xxx.identity.IdentityContext;
import com.xxx.identity.UserInfo;
import com.xxx.identity.model.User;
import com.xxx.identity.service.UserService;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.powermock.modules.testng.PowerMockTestCase;
import org.springframework.context.ApplicationContext;
import org.testng.Assert;
import org.testng.IObjectFactory;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.ObjectFactory;
import org.testng.annotations.Test;

import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.eq;
import static org.easymock.EasyMock.expect;
import static org.powermock.api.easymock.PowerMock.mockStatic;

/**
 * Unit test for AuthUtility.
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest({IdentityContext.class})
public class AuthUtilityTest extends PowerMockTestCase {


    private Object[] mocks;

    private UserService userServiceMock;
    private User userMock;
    private IdentityContext identityContextMock;
    private ApplicationContext applicationContextMock;


    @ObjectFactory
    public IObjectFactory getObjectFactory() {
        return new org.powermock.modules.testng.PowerMockObjectFactory();
    }

    @BeforeMethod
    public void setUp() throws Exception {
        userServiceMock = createMock(UserService.class);
        userMock = createMock(User.class);
        identityContextMock = createMock(IdentityContext.class);
        applicationContextMock = createMock(ApplicationContext.class);

        mocks =
            new Object[]{userServiceMock, userMock, identityContextMock, applicationContextMock};
    }

    @Test
    public void retrieveUserTest() throws Exception {

        //when user is not null
        mockStatic(IdentityContext.class);
        expect(IdentityContext.getInstance()).andReturn(identityContextMock);
        expect(identityContextMock.getApplicationContext()).andReturn(applicationContextMock);
        expect(applicationContextMock.getBean(eq("userService"))).andReturn(userServiceMock);
        expect(userServiceMock.getUserWithApplicationRoles(eq("[e-mail]"))).andReturn(userMock);


        org.powermock.api.easymock.PowerMock.replayAll(mocks);
        UserInfo result = AuthUtility.retrieveUser("[e-mail]");
        Assert.assertNotNull(result);
        org.powermock.api.easymock.PowerMock.verifyAll();

    }

}

This is the error i get
Cannot subclass final class class com.xxx.identity.IdentityContext

[Andrew Monkhouse]

You are trying to create your mock using EasyMock - EasyMock cannot override static or final. This is where PowerMock comes in - it can override them. Change how you are creating your mocked instance.

[Darvesh Niz]

Thanks

Notice the
@RunWith(PowerMockRunner.class) annotation at the beginning of the class.
Someone suggested me that i dont have to explicitly call powermock.create mock and easy mock classes will be able to create an instance of final class. Dont know how true it is

anyway i try these statement also in the setUp method identityContext = PowerMock.createMock(IdentityContext.class)

@BeforeMethod  
    public void setUp() throws Exception {  
        userServiceMock = createMock(UserService.class);  
        userMock = createMock(User.class);  
        identityContext = PowerMock.createMock(IdentityContext.class) 
        applicationContextMock = createMock(ApplicationContext.class);  
  
        mocks =  
            new Object[]{userServiceMock, userMock, identityContextMock, applicationContextMock};  
    } 

and still the same result

[enric jaen]

With junit it's working for me. I extend from TestCase instead of PowerMockTestCase. Not sure if this is relevant.

import junit.framework.TestCase;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import static org.easymock.EasyMock.createMock;

/**
 * Unit test for AuthUtility.
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest({IdentityContext.class})
public class AuthUtilityTest extends TestCase {


    private IdentityContext identityContextMock;



    @Before
    public void setUp() throws Exception {
        identityContextMock = createMock(IdentityContext.class);
    }

    @Test
    public void retrieveUserTest() throws Exception {


    }

}