diff -r 11404088d1a5 -r 3fc2a801c39e test/maps_test.cc
--- a/test/maps_test.cc	Fri Sep 25 12:24:16 2009 +0200
+++ b/test/maps_test.cc	Sat Sep 26 07:08:10 2009 +0200
@@ -579,6 +579,40 @@
           it == map.endValue(), "Wrong value iterator");
   }
 
+  // CrossRefMap
+  {
+    typedef SmartDigraph Graph;
+    DIGRAPH_TYPEDEFS(Graph);
+
+    checkConcept<ReadWriteMap<Node, int>,
+                 CrossRefMap<Graph, Node, int> >();
+    
+    Graph gr;
+    typedef CrossRefMap<Graph, Node, char> CRMap;
+    typedef CRMap::ValueIterator ValueIt;
+    CRMap map(gr);
+    
+    Node n0 = gr.addNode();
+    Node n1 = gr.addNode();
+    Node n2 = gr.addNode();
+    
+    map.set(n0, 'A');
+    map.set(n1, 'B');
+    map.set(n2, 'C');
+    map.set(n2, 'A');
+    map.set(n0, 'C');
+
+    check(map[n0] == 'C' && map[n1] == 'B' && map[n2] == 'A',
+          "Wrong CrossRefMap");
+    check(map('A') == n2 && map.inverse()['A'] == n2, "Wrong CrossRefMap");
+    check(map('B') == n1 && map.inverse()['B'] == n1, "Wrong CrossRefMap");
+    check(map('C') == n0 && map.inverse()['C'] == n0, "Wrong CrossRefMap");
+
+    ValueIt it = map.beginValue();
+    check(*it++ == 'A' && *it++ == 'B' && *it++ == 'C' &&
+          it == map.endValue(), "Wrong value iterator");
+  }
+  
   // Iterable bool map
   {
     typedef SmartGraph Graph;