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"Unit tests for XML input/output of MeshValueCollection"
# Copyright (C) 2011 Anders Logg
#
# This file is part of DOLFIN.
#
# DOLFIN 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 3 of the License, or
# (at your option) any later version.
#
# DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
import pytest
from dolfin import *
import os
from dolfin_utils.test import fixture, skip_in_parallel, cd_tempdir, filedir
@skip_in_parallel
def test_insertion_extraction_io(cd_tempdir):
"Test input/output via << and >>."
filename = "xml_mesh_value_collection_test_io.xml"
# Create mesh
mesh = UnitCubeMesh(5, 5, 5)
# Create mesh value collection and add some data
mesh = UnitCubeMesh(5, 5, 5)
output_values = MeshValueCollection("size_t", mesh, 2)
output_values.set_value(1, 1, 1);
output_values.set_value(2, 1, 3);
output_values.set_value(5, 1, 8);
output_values.set_value(13, 1, 21);
output_values.set_value(7, 2, 13);
output_values.set_value(4, 2, 2);
name = "test_mesh_value_collection"
output_values.rename(name, "a MeshValueCollection")
# Write to file
output_file = File(filename)
output_file << output_values
# Read from file
input_file = File(filename)
input_values = MeshValueCollection("size_t", mesh)
input_file >> input_values
# Get some data and check that it matches
assert input_values.size() == output_values.size()
assert input_values.dim() == output_values.dim()
assert input_values.name() == name
def test_constructor_input(filedir):
"Test input via constructor."
filename = os.path.join(filedir, "xml_value_collection_ref.xml")
# Create mesh
mesh = UnitCubeMesh(5, 5, 5)
# Read from file
input_values = MeshValueCollection("size_t", mesh, filename)
# Check that size is correct
assert MPI.sum(mesh.mpi_comm(), input_values.size()) == 6
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