Fix enum regression

asyncua/ua/ua_binary.py

@@ -588,10 +588,9 @@ def create_enum_deserializer(uatype):
         typename = 'UInt32'
         if hasattr(uatype, 'datatype'):
             typename = uatype.datatype()
-        return getattr(Primitives, typename).unpack
-    elif isinstance(uatype, Enum):
-        return lambda val: Primitives.Int32.unpack(val.value)
-    return Primitives.Int32.unpack
+        unpack = getattr(Primitives, typename).unpack
+        return lambda val: uatype(unpack(val))
+    return lambda val: uatype(Primitives.Int32.unpack(val))
 
 
 def from_binary(uatype, data):

tests/test_common.py

@@ -1351,6 +1351,7 @@ async def test_custom_struct_with_enum(opc):
     var = await opc.opc.nodes.objects.add_variable(idx, "my_struct2", ua.Variant(mystruct, ua.VariantType.ExtensionObject))
     val = await var.read_value()
     assert val.MyEnum == ua.MyCustEnum2.tutu
+    assert isinstance(val.MyEnum, ua.MyCustEnum2)
 
 
 async def test_nested_struct_arrays(opc):