diff --git a/src/test/java/org/gcube/informationsystem/resourceregistry/publisher/ERManagementTest.java b/src/test/java/org/gcube/informationsystem/resourceregistry/publisher/ERManagementTest.java
index bac4a0e..a642d30 100644
--- a/src/test/java/org/gcube/informationsystem/resourceregistry/publisher/ERManagementTest.java
+++ b/src/test/java/org/gcube/informationsystem/resourceregistry/publisher/ERManagementTest.java
@@ -541,61 +541,61 @@ public class ERManagementTest extends ContextTest {
 		
 		/* EService */
 		List<Resource> resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, EService.class, eServiceUUID, Direction.both, true);
+				IsRelatedTo.class, EService.class, eServiceUUID, Direction.BOTH, true);
 		Assert.assertTrue(resourceList.size() == 1);
 		Resource resource = resourceList.get(0);
 		Assert.assertTrue(resource.getHeader().getUUID().compareTo(hostingNodeUUID) == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, EService.class, eServiceUUID, Direction.out, true);
+				IsRelatedTo.class, EService.class, eServiceUUID, Direction.OUT, true);
 		Assert.assertTrue(resourceList.size() == 1);
 		resource = resourceList.get(0);
 		Assert.assertTrue(resource.getHeader().getUUID().compareTo(hostingNodeUUID) == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, EService.class, eServiceUUID, Direction.in, true);
+				IsRelatedTo.class, EService.class, eServiceUUID, Direction.IN, true);
 		Assert.assertTrue(resourceList.size() == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, EService.class, eServiceUUID, Direction.both, false);
+				IsRelatedTo.class, EService.class, eServiceUUID, Direction.BOTH, false);
 		Assert.assertTrue(resourceList.size() == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, EService.class, eServiceUUID, Direction.out, false);
+				IsRelatedTo.class, EService.class, eServiceUUID, Direction.OUT, false);
 		Assert.assertTrue(resourceList.size() == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, EService.class, eServiceUUID, Direction.in, false);
+				IsRelatedTo.class, EService.class, eServiceUUID, Direction.IN, false);
 		Assert.assertTrue(resourceList.size() == 0);
 		/* END EService */
 		
 		/* Hosting Node */
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.both, true);
+				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.BOTH, true);
 		Assert.assertTrue(resourceList.size() == 1);
 		resource = resourceList.get(0);
 		Assert.assertTrue(resource.getHeader().getUUID().compareTo(eServiceUUID) == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.out, true);
+				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.OUT, true);
 		Assert.assertTrue(resourceList.size() == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.in, true);
+				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.IN, true);
 		Assert.assertTrue(resourceList.size() == 1);
 		resource = resourceList.get(0);
 		Assert.assertTrue(resource.getHeader().getUUID().compareTo(eServiceUUID) == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.both, false);
+				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.BOTH, false);
 		Assert.assertTrue(resourceList.size() == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.out, false);
+				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.OUT, false);
 		Assert.assertTrue(resourceList.size() == 0);
 		
 		resourceList = resourceRegistryClient.getRelatedResourcesFromReferenceResource(Resource.class,
-				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.in, false);
+				IsRelatedTo.class, HostingNode.class, hostingNodeUUID, Direction.IN, false);
 		Assert.assertTrue(resourceList.size() == 0);
 		/* END HostingNode */