EntityManger null in seam unit tests - unit-testing

Question

Below is the code I am trying to test, but getting null pointer exception on entityManager.find coz entityManager = null. Any suggestions?
#Name("UserProfileConverter")
#BypassInterceptors
#Converter(forClass= UserProfile.class)
public class UserProfileConverter implements javax.faces.convert.Converter {
#Logger
private static Log logger;
public Object getAsObject(FacesContext arg0, UIComponent uiComponent, String s) {
EntityManager entityManager = (EntityManager) Component.getInstance("entityManager");
UserProfile p;
if(s == null || s.equals("null")) {
return null;
} else {
try {
long i = Long.parseLong(s);
return entityManager.find(UserProfile.class, i);
} catch (NumberFormatException e) {
logger.error(e);
} catch (SecurityException e) {
logger.error(e);
}
}
return null;
}
public String getAsString(FacesContext context, UIComponent uiComponetn, Object arg2) {
return ((CsaRole)arg2).getCsaRoleId() + "";
}
}
Here is my test class..
public class UserProfileConverterTest extends SeamTest {
private UserProfileConverter converter;
private FacesContext mockFacesContext;
private UIComponent mockUiComponent;
private final static Logger logger = Logger.getLogger(UserProfileConverterTest.class);
#BeforeClass
public void setup() {
converter = new UserProfileConverter();
}
#Test
public void testGetAsObject()
throws Exception {
new ComponentTest() {
#Override
protected void testComponents() throws Exception {
String value = "11111111111";
converter.getAsObject(mockFacesContext, mockUiComponent, value);
}
}.run();
}
}

Answer 1

public class UserProfileConverterTest extends SeamTest {
EntityManager mockEntityManager;
private UserProfileConverter converter;
UIComponent mockUiComponent = null;
MockFacesContext mockFacesContext = null;
#BeforeClass
public void setup() {
converter = new CsaUserProfileConverter();
mockEntityManager = EasyMock.createMock(EntityManager.class);
}
class BaseComponentTest extends ComponentTest {
protected void testComponents() throws Exception {
ScopeType.EVENT.getContext().set("entityManager", mockEntityManager);
}
}
#Test
public void testGetAsObject() throws Exception {
new BaseComponentTest() {
protected void testComponents() throws Exception {
super.testComponents();
UserProfile expectedResult = new UserProfile();
EasyMock.expect(mockEntityManager.find(UserProfile.class,1L)).andReturn(expectedResult);
//Replay Mock
EasyMock.replay(mockEntityManager);
Object target = converter.getAsObject(mockFacesContext,mockUiComponent,"1");
Assert.assertEquals(expectedResult, target);
//Verify the Mock
EasyMock.verify(mockEntityManager);
}
}.run();
}