Index: trunk/test/unit/org/openstreetmap/josm/data/osm/QuadBucketsTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/osm/QuadBucketsTest.java	(revision 3153)
+++ trunk/test/unit/org/openstreetmap/josm/data/osm/QuadBucketsTest.java	(revision 3153)
@@ -0,0 +1,39 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.data.osm;
+
+import java.io.FileInputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openstreetmap.josm.Main;
+import org.openstreetmap.josm.data.projection.Mercator;
+import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
+import org.openstreetmap.josm.io.OsmReader;
+
+public class QuadBucketsTest {
+
+    @Test
+    public void testRemove() throws Exception {
+        Main.proj = new Mercator();
+        DataSet ds = OsmReader.parseDataSet(new FileInputStream("data_nodist/restriction.osm"), NullProgressMonitor.INSTANCE);
+        List<Node> allNodes = new ArrayList<Node>(ds.getNodes());
+        List<Way> allWays = new ArrayList<Way>(ds.getWays());
+        List<Relation> allRelations = new ArrayList<Relation>(ds.getRelations());
+        for (OsmPrimitive o: allNodes) {
+            ds.removePrimitive(o);
+        }
+        for (OsmPrimitive o: allWays) {
+            ds.removePrimitive(o);
+        }
+        for (OsmPrimitive o: allRelations) {
+            ds.removePrimitive(o);
+        }
+
+        Assert.assertTrue(ds.getNodes().isEmpty());
+        Assert.assertTrue(ds.getWays().isEmpty());
+        Assert.assertTrue(ds.getRelations().isEmpty());
+    }
+
+}