+## Copyright (C) 2014-2017 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<mailto:webmaster.salome@opencascade.com>
+##
+
from salome.shaper import model
model.begin()
SketchConstraintCoincidence_18.setName("SketchConstraintCoincidence_20")
SketchConstraintTangent_2 = Sketch_1.setTangent(SketchArc_2.results()[1], SketchArc_3.results()[1])
SketchConstraintTangent_3 = Sketch_1.setTangent(SketchArc_3.results()[1], SketchArc_2.results()[1])
+model.do()
+
+# check overconstraint message appears
+assert Sketch_1.solverError().value() != "", "FAILED: Sketch should report over-constrained situation"
+# remove duplicated Tangent constraint
+Part_1_doc.removeFeature(SketchConstraintTangent_3.feature())
+model.do()
+assert Sketch_1.solverError().value() == "", "FAILED: Sketch should NOT report over-constrained situation"
+
+# continue creating model
SketchLine_8 = Sketch_1.addLine(16.63997893808557, 190, 16.63997893808557, 184)
SketchConstraintCoincidence_19 = Sketch_1.setCoincident(SketchLine_2.startPoint(), SketchLine_8.startPoint())
SketchConstraintCoincidence_19.setName("SketchConstraintCoincidence_21")
model.testNbSubShapes(Boolean_1, GeomAPI_Shape.FACE, [35])
model.testNbSubShapes(Boolean_1, GeomAPI_Shape.EDGE, [162])
model.testNbSubShapes(Boolean_1, GeomAPI_Shape.VERTEX, [324])
-model.testResultsVolumes(Boolean_1, [2053931.831648423336446285247802734])
+model.testResultsVolumes(Boolean_1, [2053931.558882251149043440818786621])
assert(model.checkPythonDump())