--- /dev/null
+# Copyright (C) 2014-2021 CEA/DEN, EDF R&D
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+#
+
+from salome.shaper import model
+
+model.begin()
+partSet = model.moduleDocument()
+
+### Create Part
+Part_1 = model.addPart(partSet)
+Part_1_doc = Part_1.document()
+aPart1 = model.addParameter(Part_1_doc, "Doing", "123", "Longueur de la pièce")
+try:
+ aPart2 = model.addParameter(Part_1_doc, "Doing", "323", "Long")
+except SyntaxError as anError:
+ assert(anError != "")
+ assert(str(anError).find("Variable name is not unique.") != -1)
+
+model.end()