Refactor vacuum domain handling and update expected names in tests

Author: lmdiazangulo

src/ShapesClassification.py

@@ -149,15 +149,19 @@ def _buildDefaultVacuumDomain(self):
         farVacuum = [(2, gmsh.model.occ.addDisk(
             *boundingBox.getCenter(), 
             farVacuumDiameter, farVacuumDiameter))]
-        
+
         gmsh.model.occ.synchronize()
+        self.open = dict([[0, gmsh.model.getBoundary(farVacuum)]])
 
         farVacuum = gmsh.model.occ.cut(
             farVacuum, nearVacuum, removeObject=True, removeTool=False)[0]
 
+
         nearVacuum = gmsh.model.occ.cut(
             nearVacuum, nonVacuumSurfaces, removeObject=True, removeTool=False)[0]
 
+        gmsh.model.occ.synchronize()
+        
         # -- Set mesh size for near vacuum region
         bb = BoundingBox(
             gmsh.model.getBoundingBox(2, nearVacuum[0][1]))
@@ -167,7 +171,7 @@ def _buildDefaultVacuumDomain(self):
         gmsh.model.mesh.setSize(innerRegion, minSide / 20)
 
 
-        self.open = dict([[0, gmsh.model.getBoundary(farVacuum)]])
+       
         gmsh.model.occ.synchronize()
 
         return dict([[0, nearVacuum], [1, farVacuum]])

test/test_mesher.py

@@ -246,10 +246,12 @@ def test_conductor_and_outer_dielectric(self):
 
         pGs = gmsh.model.getPhysicalGroups()
         pGNames = [gmsh.model.getPhysicalName(*pG) for pG in pGs]
-        expectedNames = ['Conductor_0', 'Dielectric_0', 
+        expectedNames = ['Conductor_0', 
+                         'Dielectric_0', 
                          'OpenBoundary_0',
                          'Vacuum_0', 'Vacuum_1']
-        expectedEntities = [1, 1, 
+        expectedEntities = [1, 
+                            1, 
                             1,
                             1, 1]
         self.assertEqual(sorted(pGNames), sorted(expectedNames))