Fixes VisitorKeepInventory to disregard coops and trusted

#2126
Also fixes some tests.

src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/VisitorKeepInventoryListener.java

@@ -11,11 +11,13 @@ import world.bentobox.bentobox.api.flags.FlagListener;
 import world.bentobox.bentobox.api.user.User;
 import world.bentobox.bentobox.database.objects.Island;
 import world.bentobox.bentobox.lists.Flags;
+import world.bentobox.bentobox.managers.RanksManager;
 import world.bentobox.bentobox.util.Util;
 
 /**
  * Prevents visitors from losing their items if they
  * die on an island in which they are a visitor.
+ * Coops and above are not considered visitors.
  * Handles {@link world.bentobox.bentobox.lists.Flags#VISITOR_KEEP_INVENTORY}.
  * @author jstnf
  * @since 1.17.0
@@ -32,7 +34,7 @@ public class VisitorKeepInventoryListener extends FlagListener {
         }
 
         Optional<Island> island = getIslands().getProtectedIslandAt(e.getEntity().getLocation());
-        if (island.isPresent() && !island.get().getMemberSet().contains(e.getEntity().getUniqueId())) {
+        if (island.isPresent() && !island.get().getMemberSet(RanksManager.COOP_RANK).contains(e.getEntity().getUniqueId())) {
             e.setKeepInventory(true);
             e.setKeepLevel(true);
             e.getDrops().clear();

src/test/java/world/bentobox/bentobox/listeners/PanelListenerManagerTest.java

@@ -171,6 +171,17 @@ public class PanelListenerManagerTest {
             return name;
         }
 
+        @Override
+        public String getOriginalTitle() {
+            // TODO Auto-generated method stub
+            return "";
+        }
+
+        @Override
+        public void setTitle(String title) {
+            // TODO Auto-generated method stub
+        }
+
     }
 
     @After

src/test/java/world/bentobox/bentobox/listeners/flags/worldsettings/VisitorKeepInventoryListenerTest.java

@@ -4,6 +4,7 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
@@ -122,7 +123,7 @@ public class VisitorKeepInventoryListenerTest {
         /* Islands */
         when(plugin.getIslands()).thenReturn(islandsManager);
         // Visitor
-        when(island.getMemberSet()).thenReturn(ImmutableSet.of());
+        when(island.getMemberSet(anyInt())).thenReturn(ImmutableSet.of());
         // By default, there should be an island.
         when(islandsManager.getProtectedIslandAt(any())).thenReturn(Optional.of(island));