pheromones tests: rename fct

intelligine/tests/simulation/pheromone/TestDirection.py

         for position in pheromones:
             self._context.pheromones().set_pheromones(position, pheromones[position])
 
-    def _test_direction(self, pheromones, direction, pheromone_type=PHEROMON_DIR_EXPLO, reference_point=(0, 0, 0)):
+    def _test_direction_point(self, pheromones, direction, pheromone_type=PHEROMON_DIR_EXPLO, reference_point=(0, 0, 0)):
         """
 
         :param pheromones:
         }
 
         for direction_wanted in test_data:
-            self._test_direction(test_data[direction_wanted], direction_wanted)
+            self._test_direction_point(test_data[direction_wanted], direction_wanted)
 
     def test_with_multiple_same_intensity(self):
         """
         }
 
         for direction_wanted in test_data:
-            self._test_direction(test_data[direction_wanted], direction_wanted)
+            self._test_direction_point(test_data[direction_wanted], direction_wanted)
 
     def test_with_multiple_different_intensity(self):
         """
         }
 
         for direction_wanted in test_data:
-            self._test_direction(test_data[direction_wanted], direction_wanted)
+            self._test_direction_point(test_data[direction_wanted], direction_wanted)