Index: /trunk/test/unit/org/openstreetmap/josm/data/validation/tests/MapCSSTagCheckerTest.java
===================================================================
--- /trunk/test/unit/org/openstreetmap/josm/data/validation/tests/MapCSSTagCheckerTest.java	(revision 16355)
+++ /trunk/test/unit/org/openstreetmap/josm/data/validation/tests/MapCSSTagCheckerTest.java	(revision 16356)
@@ -25,6 +25,8 @@
 import org.openstreetmap.josm.command.PseudoCommand;
 import org.openstreetmap.josm.command.SequenceCommand;
+import org.openstreetmap.josm.data.coor.LatLon;
 import org.openstreetmap.josm.data.osm.DataSet;
 import org.openstreetmap.josm.data.osm.IPrimitive;
+import org.openstreetmap.josm.data.osm.Node;
 import org.openstreetmap.josm.data.osm.OsmPrimitive;
 import org.openstreetmap.josm.data.osm.OsmUtils;
@@ -194,6 +196,14 @@
     @Test
     public void testInit() throws Exception {
+        Logging.clearLastErrorAndWarnings();
         MapCSSTagChecker c = new MapCSSTagChecker();
         c.initialize();
+
+        assertTrue("no warnings/errors are logged", Logging.getLastErrorAndWarnings().isEmpty());
+
+        // to trigger MapCSSStyleIndex code
+        Node node = new Node(new LatLon(12, 34));
+        node.put("amenity", "drinking_water");
+        assertTrue(c.getErrorsForPrimitive(node, false).isEmpty());
     }