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test_copy.py
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			# -- coding: utf-8 --
			#
			# Copyright (©) 2016-2022 EPFL (École Polytechnique Fédérale de Lausanne),
			# Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
			#
			# This program is free software: you can redistribute it and/or modify
			# it under the terms of the GNU Affero General Public License as published
			# by the Free Software Foundation, either version 3 of the License, or
			# (at your option) any later version.
			#
			# This program 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 Affero General Public License for more details.
			#
			# You should have received a copy of the GNU Affero General Public License
			# along with this program. If not, see <https://www.gnu.org/licenses/>.

			import copy
			import pytest

			from numpy.testing import assert_allclose
			from test_dumper import model_fixture # noqa


			def test_model_deepcopy(model_fixture):
			model = copy.deepcopy(model_fixture)

			assert model is not model_fixture, "Copy returns a referecence."

			for field in model_fixture:
			assert_allclose(model[field], model_fixture[field], 1e-15)


			def test_model_copy(model_fixture):
			with pytest.raises(RuntimeError):
			copy.copy(model_fixture)