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"""Unit tests for the solve interface"""
# Copyright (C) 2011 Garth N. Wells
#
# 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/>.
#
# First added: 2011-12-21
# Last changed:se
from dolfin import *
def test_normalize_average():
size = 200
value = 2.0
x = Vector(MPI.comm_world, size)
x[:] = value
factor = normalize(x, "average")
assert factor == value
assert x.sum() == 0.0
def test_normalize_l2():
size = 200
value = 2.0
x = Vector(MPI.comm_world, size)
x[:] = value
factor = normalize(x, "l2")
assert round(factor - sqrt(size*value*value), 7) == 0
assert round(x.norm("l2") - 1.0, 7) == 0
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