Index: trunk/test/unit/org/openstreetmap/josm/actions/OrthogonalizeActionTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/actions/OrthogonalizeActionTest.java	(revision 9923)
+++ trunk/test/unit/org/openstreetmap/josm/actions/OrthogonalizeActionTest.java	(revision 9924)
@@ -1,4 +1,6 @@
 // License: GPL. For details, see LICENSE file.
 package org.openstreetmap.josm.actions;
+
+import static junit.framework.Assert.assertEquals;
 
 import java.io.FileInputStream;
@@ -9,7 +11,10 @@
 import org.openstreetmap.josm.TestUtils;
 import org.openstreetmap.josm.actions.search.SearchCompiler;
+import org.openstreetmap.josm.data.coor.LatLon;
 import org.openstreetmap.josm.data.osm.DataSet;
+import org.openstreetmap.josm.data.osm.Way;
 import org.openstreetmap.josm.gui.layer.OsmDataLayer;
 import org.openstreetmap.josm.io.OsmReader;
+import org.openstreetmap.josm.tools.Geometry;
 import org.openstreetmap.josm.tools.Utils;
 
@@ -34,5 +39,11 @@
     @Test
     public void testClosedWay() throws Exception {
-        performTest("name=ClosedWay");
+        final DataSet ds = performTest("name=ClosedWay");
+        final Way way = ds.getSelectedWays().iterator().next();
+        assertEquals(new LatLon(8.538808176881814, 55.72978898396922), way.getNode(0).getCoor());
+        assertEquals(new LatLon(8.539618224318104, 55.73039799489563), way.getNode(1).getCoor());
+        assertEquals(new LatLon(8.538993302766201, 55.73124794515577), way.getNode(2).getCoor());
+        assertEquals(new LatLon(8.538183254003354, 55.730638934229376), way.getNode(3).getCoor());
+        verifyRectangleClockwise(way);
     }
 
@@ -49,12 +60,26 @@
     @Test
     public void testClosedWayWithReferenceNodes() throws Exception {
-        performTest("name=ClosedWayWithReferenceNodes");
+        final DataSet ds = performTest("name=ClosedWayWithReferenceNodes");
+        final Way way = ds.getSelectedWays().iterator().next();
+        assertEquals(new LatLon(8.534711427, 55.73000670312), way.getNode(0).getCoor());
+        assertEquals(new LatLon(8.53547720918594, 55.73067141759374), way.getNode(1).getCoor());
+        assertEquals(new LatLon(8.534835495633061, 55.73142735279376), way.getNode(2).getCoor());
+        assertEquals(new LatLon(8.53406971216, 55.73076263832), way.getNode(3).getCoor());
+        verifyRectangleClockwise(way);
     }
 
-    void performTest(String search) throws Exception {
+    DataSet performTest(String search) throws Exception {
         try (FileInputStream in = new FileInputStream(TestUtils.getTestDataRoot() + "orthogonalize.osm")) {
             final DataSet ds = OsmReader.parseDataSet(in, null);
             ds.setSelected(Utils.filter(ds.allPrimitives(), SearchCompiler.compile(search)));
-            OrthogonalizeAction.orthogonalize(ds.getSelected());
+            OrthogonalizeAction.orthogonalize(ds.getSelected()).executeCommand();
+            return ds;
+        }
+    }
+
+    void verifyRectangleClockwise(final Way way) {
+        for (int i = 1; i < way.getNodesCount() - 1; i++) {
+            assertEquals(-Math.PI / 2,  Geometry.getCornerAngle(
+                    way.getNode(i - 1).getEastNorth(), way.getNode(i).getEastNorth(), way.getNode(i + 1).getEastNorth()), 1e-6);
         }
     }