Index: applications/editors/josm/plugins/ElevationProfile/test/org/openstreetmap/josm/plugins/elevation/tests/EleVertexTest.java
===================================================================
--- applications/editors/josm/plugins/ElevationProfile/test/org/openstreetmap/josm/plugins/elevation/tests/EleVertexTest.java	(revision 29907)
+++ applications/editors/josm/plugins/ElevationProfile/test/org/openstreetmap/josm/plugins/elevation/tests/EleVertexTest.java	(revision 29921)
@@ -1,4 +1,5 @@
 package org.openstreetmap.josm.plugins.elevation.tests;
 
+import java.awt.Color;
 import java.util.List;
 
@@ -9,7 +10,8 @@
 import org.openstreetmap.josm.data.Preferences;
 import org.openstreetmap.josm.data.coor.LatLon;
+import org.openstreetmap.josm.plugins.elevation.ColorMap;
 import org.openstreetmap.josm.plugins.elevation.EleCoordinate;
 import org.openstreetmap.josm.plugins.elevation.EleVertex;
-import org.openstreetmap.josm.plugins.elevation.ElevationRenderer;
+import org.openstreetmap.josm.plugins.elevation.GridRenderer;
 
 public class EleVertexTest extends TestCase {
@@ -80,9 +82,30 @@
 	// Staufenberg, Hessen
 	// Ulrichstein, Hessen
-	ElevationRenderer er = new ElevationRenderer("Ele", new Bounds(
+	GridRenderer er = new GridRenderer("Ele", new Bounds(
 		new LatLon(50.6607106, 8.7337029), 
 		new LatLon(50.5767627, 9.1938483)), null);
 	
 	er.run();
+    }
+    
+    public void testColorMap() {
+	ColorMap testMap  = ColorMap.create("Test", new Color[]{Color.white, Color.black}, new int[]{0, 1000});
+	
+	// range test
+	Color c1 = testMap.getColor(-100);
+	assertEquals(Color.white, c1);
+	// range test
+	Color c2 = testMap.getColor(1100);
+	assertEquals(Color.black, c2);
+	// test mid (RGB 128, 128, 128)
+	Color c3 = testMap.getColor(500);
+	assertEquals(Color.gray, c3);
+	
+	// test 0.75 (RGB 192 x 3)
+	Color c4 = testMap.getColor(751);
+	assertEquals(Color.lightGray, c4);
+	// test 0.25 (RGB 64 x 3)
+	Color c5 = testMap.getColor(251);
+	assertEquals(Color.darkGray, c5);	
     }