fixed little colormap bug and added a test to ensure the calculation of 100 distinct colors

java/com.sap.sailing.gwt.ui.test/src/com/sap/sailing/gwt/ui/test/ColorMapTest.java

@@ -0,0 +1,28 @@
+package com.sap.sailing.gwt.ui.test;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.sap.sailing.gwt.ui.client.ColorMap;
+
+public class ColorMapTest {
+
+    @Test
+    public void testHundredDistinctColors() {
+        ColorMap<Integer> colorMap = new ColorMap<Integer>();
+        List<String> existingColors = new ArrayList<String>(); 
+        int amountOfDistinctColorsToCreate = 100;
+        for(int i = 1; i <= amountOfDistinctColorsToCreate; i++) {
+            String colorByID = colorMap.getColorByID(i);
+            if(!existingColors.contains(colorByID)) {
+                existingColors.add(colorByID);
+            }
+        }
+        assertEquals(amountOfDistinctColorsToCreate, existingColors.size());
+    }
+
+}