Build refinement transfers from union and pin physical body support

tests/unit/test_refinement_three_level_multipatch.py

@@ -217,7 +217,7 @@ class ConstructorAndSchedule(unittest.TestCase):
         cases=[dict(child=(8,8,16,16)),dict(child_rectangles_in_parent=[]),
                dict(child_rectangles_in_parent=[(16,16,32)]),
                dict(child_rectangles_in_parent=[(16.5,16,32,40)]),
-               dict(child_rectangles_in_parent=[(16,16,32,24),(16,27,32,40)]),
+               dict(child_rectangles_in_parent=[(16,16,32,24),(16,27,32,55)]),
                dict(child_rectangles_in_parent=[(40,16,48,40)]),
                dict(child_rectangles_in_parent=[(8,16,32,40)]),
                dict(child_block=None),dict(fine_block=None),dict(base_block=None),
@@ -226,8 +226,8 @@ class ConstructorAndSchedule(unittest.TestCase):
         for changes in cases:
             with self.subTest(changes=changes),self.assertRaises((ValueError,TypeError)):
                 host.FixedPatchStepper(CFG,PARENTS,context=context,**dict(KW,**changes))
-        with self.assertRaisesRegex(ValueError,'closer'):
-            host.FixedPatchStepper(CFG,[(4,4,20,28),(23,4,44,28)],context=context,**KW)
+        with self.assertRaisesRegex(ValueError,'margin'):
+            host.FixedPatchStepper(CFG,[(1,4,20,28),(23,4,44,28)],context=context,**KW)
         objects,jets=bodies_and_jets()
         with self.assertRaisesRegex(ValueError,'only on L2'):
             host.FixedPatchStepper(CFG,PARENTS,context=context,fine_objects=objects,**KW)