diff --git a/Arrangement_on_surface_2/test/Arrangement_on_surface_2/Traits_test.h b/Arrangement_on_surface_2/test/Arrangement_on_surface_2/Traits_test.h
index 32687170e7b..2780ec25660 100644
--- a/Arrangement_on_surface_2/test/Arrangement_on_surface_2/Traits_test.h
+++ b/Arrangement_on_surface_2/test/Arrangement_on_surface_2/Traits_test.h
@@ -560,32 +560,26 @@ bool Traits_test<T_Traits>::start()
 template <class T_Traits>
 bool Traits_test<T_Traits>::read_input(std::ifstream & is ,Read_object_type obj_t)
 {
-  int  num=0; 
   char one_line[128];
   skip_comments(is, one_line);
   std::istringstream str_stream(one_line, std::istringstream::in);
-  str_stream >> num;
   str_stream.clear();
-  if (num > 0)
-  {
     try
     {
-      switch (obj_t)
+      for (int i = 0; !is.eof() ; ++i) 
       {
-       case POINT :
-        m_points.resize(num);
-	    break;
-       case CURVE :
-        m_curves.resize(num);
-	    break;
-       case XCURVE :
-        m_xcurves.resize(num);
-	    break;
-      }//switch
-      for (int i = 0; i < num; ++i) 
-      {
-        skip_comments(is, one_line);
-        str_stream.str(one_line);
+        switch (obj_t)
+        {
+         case POINT :
+          m_points.resize(m_points.size()+1);
+	      break;
+         case CURVE :
+          m_curves.resize(m_curves.size()+1);
+	      break;
+         case XCURVE :
+          m_xcurves.resize(m_xcurves.size()+1);
+	      break;
+        }//switch
         switch (obj_t)
         {
           case POINT :
@@ -614,6 +608,8 @@ bool Traits_test<T_Traits>::read_input(std::ifstream & is ,Read_object_type obj_
             break;
 	   }//switch
        str_stream.clear();
+       skip_comments(is, one_line);
+       str_stream.str(one_line);
      }//for
      /*for (int i = 0; i < num; ++i)
      { //for debug
@@ -651,7 +647,6 @@ bool Traits_test<T_Traits>::read_input(std::ifstream & is ,Read_object_type obj_
       is.close();
       return false;
     }//catch
-  } //if num>0
   return true;
 }
 
diff --git a/Arrangement_on_surface_2/test/Arrangement_on_surface_2/cgal_test b/Arrangement_on_surface_2/test/Arrangement_on_surface_2/cgal_test
index 0de167f29b9..0068bb6dc1a 100755
--- a/Arrangement_on_surface_2/test/Arrangement_on_surface_2/cgal_test
+++ b/Arrangement_on_surface_2/test/Arrangement_on_surface_2/cgal_test
@@ -671,10 +671,13 @@ test_spherical_arc_traits()
     echo   "   ERROR:    not executed   test_traits spherical_arc_traits" >> $ERRORFILE
   else
     execute_commands_old_structure spherical_arcs spherical_arc_traits \
-    COMPARE_Y_AT_X_LEFT COMPARE_Y_AT_X_RIGHT \
+    COMPARE_Y_AT_X_LEFT COMPARE_Y_AT_X_RIGHT INTERSECT \
     BOUNDARY_IN_X BOUNDARY_IN_Y CONSTRUCTOR \
     COMPARE MAKE_X_MONOTONE SPLIT MERGE ERRORS
 
+    execute_commands_new_structure spherical_arcs spherical_arc_traits \
+    INTERSECT
+
     run_trapped_test test_traits \
     data/spherical_arcs/compare.pt data/spherical_arcs/compare.xcv \
     data/empty.zero data/spherical_arcs/compare spherical_arc_traits
diff --git a/Arrangement_on_surface_2/test/Arrangement_on_surface_2/test_traits.cpp b/Arrangement_on_surface_2/test/Arrangement_on_surface_2/test_traits.cpp
index 09b521f2052..8cd2305ac96 100644
--- a/Arrangement_on_surface_2/test/Arrangement_on_surface_2/test_traits.cpp
+++ b/Arrangement_on_surface_2/test/Arrangement_on_surface_2/test_traits.cpp
@@ -83,6 +83,7 @@ read_point(stream & is, Point_2 & p)
 {
   Basic_number_type x, y, z;
   is >> x >> y >> z;
+  //std::cout << "x " << x << " y " << y << " z " << z << std::endl;
   p = Point_2(x, y, z);
   return true;
 }
@@ -93,13 +94,13 @@ template <class stream>
 bool
 Traits_test<Traits>::read_xcurve(stream & is, X_monotone_curve_2 & xcv)
 {
-  Basic_number_type x1, y1, z1, x2, y2, z2;
-  is >> x1 >> y1 >> z1 >> x2 >> y2 >> z2;
-  Point_2 p1(x1, y1, z1);
-  Point_2 p2(x2, y2, z2);
-  CGAL_assertion(p1 != p2);
-  xcv = X_monotone_curve_2(p1, p2);
-  return true;
+  Curve_2 cv;
+  if (read_curve(is,cv))
+  {
+    xcv = X_monotone_curve_2(cv);
+    return true;
+  }
+  return false;
 }
 
 /*! Read a curve */
@@ -108,10 +109,9 @@ template <class stream>
 bool
 Traits_test<Traits>::read_curve(stream & is, Curve_2 & cv)
 {
-  Basic_number_type x1, y1, z1, x2, y2, z2;
-  is >> x1 >> y1 >> z1 >> x2 >> y2 >> z2;
-  Point_2 p1(x1, y1, z1);
-  Point_2 p2(x2, y2, z2);
+  Point_2 p1,p2;
+  read_point(is,p1);
+  read_point(is,p2);
   CGAL_assertion(p1 != p2);
   cv = Curve_2(p1, p2);
   return true;