lib/Math/GSL/Fit/Test.pm

   1 package Math::GSL::Fit::Test;
   2 use base q{Test::Class};
   3 use Test::More;
   4 use Test::Exception;
   5 use Math::GSL::Fit qw/:all/;
   6 use Math::GSL qw/:all/;
   7 use Math::GSL::Errno qw/:all/;
   8 use Data::Dumper;
   9 use strict;
  10
  11 sub make_fixture : Test(setup) {
  12 }
  13
  14 sub teardown : Test(teardown) {
  15 }
  16
  17 sub FIT_LINEAR_DIES : Tests {
  18  dies_ok( sub { gsl_fit_linear(0,0,0,0) } );
  19 }
  20
  21 sub GSL_FIT_LINEAR : Tests {
  22     local $TODO = "Don't know why the function dies...";
  23     my $norris_x = [0.2, 337.4, 118.2, 884.6, 10.1, 226.5, 666.3, 996.3,
  24                         448.6, 777.0, 558.2, 0.4, 0.6, 775.5, 666.9, 338.0,
  25                         447.5, 11.6, 556.0, 228.1, 995.8, 887.6, 120.2, 0.3,
  26                         0.3, 556.8, 339.1, 887.2, 999.0, 779.0, 11.1, 118.3,
  27                         229.2, 669.1, 448.9, 0.5 ] ;
  28     my $norris_y = [ 0.1, 338.8, 118.1, 888.0, 9.2, 228.1, 668.5, 998.5,
  29                         449.1, 778.9, 559.2, 0.3, 0.1, 778.1, 668.8, 339.3,
  30                         448.9, 10.8, 557.7, 228.3, 998.0, 888.8, 119.6, 0.3,
  31                         0.6, 557.6, 339.3, 888.0, 998.5, 778.9, 10.2, 117.6,
  32                         228.9, 668.4, 449.2, 0.2];
  33     my $xstride = 2;
  34     my $wstride = 3;
  35     my $ystride = 5;
  36     my ($x, $w, $y);
  37     for my $i (0 .. 35)
  38     {
  39         $x->[$i*$xstride] = $norris_x->[$i];
  40         $w->[$i*$wstride] = 1.0;
  41         $y->[$i*$ystride] = $norris_y->[$i];
  42     }
  43     # this currently crashes the test script
  44     exit(0);
  45     my ($status, @results) = gsl_fit_linear($x, $xstride, $y, $ystride, 36);
  46
  47     ok_status( $status, $GSL_SUCCESS );
  48     print Dumper [ @results ];
  49     ok(is_similar_relative($results[1], -0.262323073774029, 1e-10));
  50     ok(is_similar_relative($results[2], 1.00211681802045, 1e-10));
  51     ok(is_similar_relative($results[3], 0.232818234301152**2.0, 1e-10));
  52     ok(is_similar_relative($results[4], -7.74327536339570e-05, 1e-10));
  53     ok(is_similar_relative($results[5], 0.429796848199937E-03**2, 1e-10));
  54     ok(is_similar_relative($results[6], 26.6173985294224, 1e-10));
  55 }
  56
  57 1;