Fixes dielectric ring case

Author: lmdiazangulo

partially_filled_coax.areas.json

@@ -0,0 +1,20 @@
+{
+   "geometries": [
+      {
+         "geometry": "Vacuum_0",
+         "area": 4005.5306333269873
+      },
+      {
+         "geometry": "Dielectric_1",
+         "area": 1884.9555921538756
+      },
+      {
+         "geometry": "Conductor_0",
+         "area": 7853.98163397448
+      },
+      {
+         "geometry": "Conductor_1",
+         "area": 1963.49540849362
+      }
+   ]
+}

test/test_mesher.py

@@ -253,7 +253,7 @@ def test_conductor_and_outer_dielectric(self):
         expectedEntities = [1, 
                             1, 
                             1,
-                            1, 1]
+                            2, 1]
         self.assertEqual(sorted(pGNames), sorted(expectedNames))
 
         for idx, name in enumerate(expectedNames):