Adapt TestNullAttribute to "test resource" changes

Now we validate the schema after being fetched from the resource,
so a missing attribute had to be introduced there.

Related to recent refactorings for test operation. Should
fix story tests.

testing/story/src/test/java/com/evolveum/midpoint/testing/story/TestNullAttribute.java

@@ -32,6 +32,8 @@
 import com.evolveum.midpoint.util.DOMUtil;
 import com.evolveum.midpoint.xml.ns._public.common.common_3.*;
 
+import static com.evolveum.midpoint.test.DummyResourceContoller.DUMMY_ACCOUNT_ATTRIBUTE_TITLE_NAME;
+
 @ContextConfiguration(locations = { "classpath:ctx-story-test-main.xml" })
 @DirtiesContext(classMode = ClassMode.AFTER_CLASS)
 public class TestNullAttribute extends AbstractStoryTest {
@@ -78,6 +80,7 @@ public void initSystem(Task initTask, OperationResult initResult) throws Excepti
         dummyResourceCtl.addAttrDef(dummyAdAccountObjectClass, DUMMY_ACCOUNT_ATTRIBUTE_FULLNAME, String.class, false, false);
         dummyResourceCtl.addAttrDef(dummyAdAccountObjectClass, DUMMY_ACCOUNT_ATTRIBUTE_SHIP, String.class, false, false);
         dummyResourceCtl.addAttrDef(dummyAdAccountObjectClass, DUMMY_ACCOUNT_ATTRIBUTE_WEAPON, String.class, false, false);
+        dummyResourceCtl.addAttrDef(dummyAdAccountObjectClass, DUMMY_ACCOUNT_ATTRIBUTE_TITLE_NAME, String.class, false, true);
 
         dummyResource = dummyResourceCtl.getDummyResource();
         resourceDummy = importAndGetObjectFromFile(ResourceType.class, RESOURCE_DUMMY_FILE,