Index: trunk/test/unit/org/openstreetmap/josm/data/BoundsTests.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/BoundsTests.java	(revision 4580)
+++ trunk/test/unit/org/openstreetmap/josm/data/BoundsTests.java	(revision 4580)
@@ -0,0 +1,43 @@
+package org.openstreetmap.josm.data;
+
+import org.junit.Test;
+import org.openstreetmap.josm.data.coor.LatLon;
+
+import static org.junit.Assert.assertTrue;
+
+public class BoundsTests {
+
+    @Test
+    public void crossingTests() {
+        Bounds b1 = new Bounds(0, 170, 50, -170);
+        assertTrue(b1.crosses180thMeridian());
+        assertTrue(!b1.contains(new LatLon(-10, -180)));
+        assertTrue(b1.contains(new LatLon(0, -180)));
+        assertTrue(b1.contains(new LatLon(50, -180)));
+        assertTrue(!b1.contains(new LatLon(60, -180)));
+        assertTrue(!b1.contains(new LatLon(-10, 180)));
+        assertTrue(b1.contains(new LatLon(0, 180)));
+        assertTrue(b1.contains(new LatLon(50, 180)));
+        assertTrue(!b1.contains(new LatLon(60, 180)));
+
+        Bounds b2 = new Bounds(60, 170, 90, -170);
+        assertTrue(!b1.intersects(b2));
+        assertTrue(!b2.intersects(b1));
+
+        Bounds b3 = new Bounds(25, 170, 90, -170);
+        assertTrue(b1.intersects(b3));
+        assertTrue(b3.intersects(b1));
+        assertTrue(b2.intersects(b3));
+        assertTrue(b3.intersects(b2));
+        
+        b3.extend(b1);
+        assertTrue(b3.equals(new Bounds(0, 170, 90, -170)));
+        assertTrue(b1.intersects(b3));
+        assertTrue(b3.intersects(b1));
+        assertTrue(b2.intersects(b3));
+        assertTrue(b3.intersects(b2));
+        
+        b3.extend(new LatLon(0, 0));
+        assertTrue(b3.equals(new Bounds(0, 0, 90, -170)));
+    }
+}
Index: trunk/test/unit/org/openstreetmap/josm/data/coor/LatLonTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/coor/LatLonTest.java	(revision 4574)
+++ trunk/test/unit/org/openstreetmap/josm/data/coor/LatLonTest.java	(revision 4580)
@@ -73,3 +73,25 @@
         assertEquals(LatLon.roundToOsmPrecisionStrict(99.9999999),  99.9999999, 0);
     }
+    
+    @Test
+    public void toIntervalLonTests() {
+        assertEquals(-180.0, LatLon.toIntervalLon(-180.0), 0);
+        assertEquals(0.0, LatLon.toIntervalLon(0.0), 0);
+        assertEquals(180.0, LatLon.toIntervalLon(180.0), 0);
+
+        assertEquals(179.0, LatLon.toIntervalLon(-181.0), 0);
+        assertEquals(-179.0, LatLon.toIntervalLon(181.0), 0);
+
+        assertEquals(-1.0, LatLon.toIntervalLon(359.0), 0);
+        assertEquals(1.0, LatLon.toIntervalLon(-359.0), 0);
+
+        assertEquals(1.0, LatLon.toIntervalLon(361.0), 0);
+        assertEquals(-1.0, LatLon.toIntervalLon(-361.0), 0);
+
+        assertEquals(179.0, LatLon.toIntervalLon(539.0), 0);
+        assertEquals(-179.0, LatLon.toIntervalLon(-539.0), 0);
+
+        assertEquals(-179.0, LatLon.toIntervalLon(541.0), 0);
+        assertEquals(179.0, LatLon.toIntervalLon(-541.0), 0);
+    }
 }