Tests in nrlib/variogram/unittests/gaussianfield_test.cpp are failing

[dafeda]

Ran tests in in nrlib/variogram manually and some are failing.

Running 9 test cases...
/Users/FCUR/git/gaussianfft/src/nrlib/variogram/unittests/gaussianfield_test.cpp:68: error: in "gaussianfield_test/Sim2dValuesSmall": difference{0.501926} between values[0]{0.53645797769176273} and 0.35718004270126918{0.35718004270126918} exceeds 1e-11%
/Users/FCUR/git/gaussianfft/src/nrlib/variogram/unittests/gaussianfield_test.cpp:69: error: in "gaussianfield_test/Sim2dValuesSmall": difference{0.00784083} between values[22 * 6]{1.3965079718023656} and 1.4074577493723737{1.4074577493723737} exceeds 1e-11%
/Users/FCUR/git/gaussianfft/src/nrlib/variogram/unittests/gaussianfield_test.cpp:70: error: in "gaussianfield_test/Sim2dValuesSmall": difference{0.0183314} between values[22 * 12]{0.88573820332782671} and 0.90197503251845967{0.90197503251845967} exceeds 1e-11%
/Users/FCUR/git/gaussianfft/src/nrlib/variogram/unittests/gaussianfield_test.cpp:71: error: in "gaussianfield_test/Sim2dValuesSmall": difference{2.56444} between values[22 * 18]{0.17246972963026536} and 0.61475867165380083{0.61475867165380083} exceeds 1e-11%
/Users/FCUR/git/gaussianfft/src/nrlib/variogram/unittests/gaussianfield_test.cpp:72: error: in "gaussianfield_test/Sim2dValuesSmall": difference{2.84604} between values[22 * 22 - 1]{-0.45983324195590325} and 0.84887146362306831{0.84887146362306831} exceeds 1e-11%