lib/Math/GSL/DHT/Test.pm

   1 package Math::GSL::DHT::Test;
   2 use Math::GSL::Test qw/:all/;
   3 use base q{Test::Class};
   4 use Test::More;
   5 use Math::GSL::DHT qw/:all/;
   6 use Math::GSL qw/:all/;
   7 use Data::Dumper;
   8 use Math::GSL::Errno qw/:all/;
   9 use strict;
  10
  11 BEGIN { gsl_set_error_handler_off(); }
  12
  13 sub make_fixture : Test(setup) {
  14 }
  15
  16 sub teardown : Test(teardown) {
  17 }
  18
  19 sub GSL_DHT_ALLOC_FREE : Tests {
  20     my $dht = gsl_dht_alloc(5);
  21     isa_ok($dht, 'Math::GSL::DHT');
  22     gsl_dht_free($dht);
  23     ok(!$@, 'gsl_dht_free');
  24 }
  25
  26 sub DHT_NEW : Tests {
  27     my $dht = gsl_dht_new(128, 1.0, 20);
  28     isa_ok($dht, 'Math::GSL::DHT' );
  29 }
  30
  31 sub DHT_SAMPLE_APPLY : Tests {
  32     my $f_in  = [(0) x 128 ];
  33     my $f_out = [(0) x 128 ];
  34     my $dht = gsl_dht_new(128, 1.0, 20);
  35
  36     for my $n (0..127) {
  37             my $x = gsl_dht_x_sample($dht, $n);
  38             $f_in->[$n] = exp(-$x);
  39     }
  40     ok( $#$f_in = 127, 'gsl_dht_x_sample' );
  41
  42     ok_status( gsl_dht_apply($dht, $f_in, $f_out));
  43     ok( $#$f_out = 127, 'gsl_dht_apply' );
  44
  45     local $TODO = 'need a typemap for $f_in and $f_out';
  46     # check that the relative error at most 2%
  47     ok(
  48         is_similar_relative ($f_out->[0], 0.181, 0.02),
  49         "gsl_dht_apply output @{[$f_out->[0]]} != 0.181"
  50     );
  51 }
  52
  53 1;