test_misc.py 3.86 KB
 Martin Reinecke committed Apr 20, 2017 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 ``````# NIFTy # Copyright (C) 2017 Theo Steininger # # Author: Theo Steininger # # 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 . import unittest import numpy as np from numpy.testing import assert_,\ assert_equal, \ assert_allclose from nifty import Field,\ RGSpace,\ LMSpace,\ GLSpace,\ FieldArray, \ RGRGTransformation, \ LMGLTransformation, \ FFTOperator class Misc_Tests(unittest.TestCase): def test_RG_distance_1D(self): for dim1 in [10,11]: for zc1 in [False,True]: for d in [0.1,1,3.7]: foo = RGSpace([dim1],zerocenter=zc1) res = foo.get_distance_array('not') assert_equal(res[zc1*(dim1//2)],0.) def test_RG_distance_2D(self): for dim1 in [10,11]: for dim2 in [9, 28]: for zc1 in [False,True]: for zc2 in [False,True]: for d in [0.1,1,3.7]: foo = RGSpace([dim1,dim2],zerocenter=[zc1,zc2]) res = foo.get_distance_array('not') assert_equal(res[zc1*(dim1//2),zc2*(dim2//2)],0.) def test_fft1D(self): for dim1 in [10,11]: for zc1 in [False,True]: for zc2 in [False,True]: for d in [0.1,1,3.7]: for itp in [np.float64,np.complex128,np.float32,np.complex64]: a = RGSpace(dim1, zerocenter=zc1, distances=d) b = RGRGTransformation.get_codomain(a, zerocenter=zc2) fft = FFTOperator(domain=a, target=b, domain_dtype=itp, target_dtype=itp) inp = Field.from_random(domain=a,random_type='normal',std=7,mean=3,dtype=itp) out = fft.inverse_times(fft.times(inp)) assert_allclose(inp.val, out.val) def test_fft2D(self): for dim1 in [10,11]: for dim2 in [9,12]: for zc1 in [False,True]: for zc2 in [False,True]: for zc3 in [False,True]: for zc4 in [False,True]: for d in [0.1,1,3.7]: for itp in [np.float64,np.complex128,np.float32,np.complex64]: a = RGSpace([dim1,dim2], zerocenter=[zc1,zc2], distances=d) b = RGRGTransformation.get_codomain(a, zerocenter=[zc3,zc4]) fft = FFTOperator(domain=a, target=b, domain_dtype=itp, target_dtype=itp) inp = Field.from_random(domain=a,random_type='normal',std=7,mean=3,dtype=itp) out = fft.inverse_times(fft.times(inp)) assert_allclose(inp.val, out.val) def test_sht(self): for lm in [0,3,6,11,30]: for tp in [np.float64,np.complex128,np.float32,np.complex64]: a = LMSpace(lmax=lm) b = LMGLTransformation.get_codomain(a) fft = FFTOperator(domain=a, target=b, domain_dtype=tp, target_dtype=tp) inp = Field.from_random(domain=a,random_type='normal',std=7,mean=3,dtype=tp) out = fft.inverse_times(fft.times(inp)) assert_allclose(inp.val, out.val)``````