test_laplace_operator.py 1.45 KB
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# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Copyright(C) 2013-2017 Max-Planck-Society
#
# NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik
# and financially supported by the Studienstiftung des deutschen Volkes.

import unittest
import numpy as np
import nifty as ift
from numpy.testing import assert_equal,\
    assert_allclose
from itertools import product
from test.common import expand
from nose.plugins.skip import SkipTest


class LaplaceOperatorTests(unittest.TestCase):
    @expand(product([None,False,True], [False,True], [10,100,1000]))
    def test_Laplace(self, log1, log2, sz):
        s=ift.RGSpace(sz,harmonic=True)
        p=ift.PowerSpace(s,logarithmic=log1)
        L=ift.LaplaceOperator(p,logarithmic=log2)
        arr=np.random.random(p.shape[0])
        fp=ift.Field(p,val=arr)
        assert_allclose (L(fp).vdot(L(fp)),L.adjoint_times(L(fp)).vdot(fp))