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package Math::GSL::DHT::Test;
use base q{Test::Class};
use Test::More tests => 7;
use Math::GSL qw/:all/;
use Math::GSL::DHT qw/:all/;
use Math::GSL::Errno qw/:all/;
use Math::GSL::Test qw/:all/;
use Data::Dumper;
use strict;
BEGIN { gsl_set_error_handler_off(); }
sub make_fixture : Test(setup) {
}
sub teardown : Test(teardown) {
}
sub GSL_DHT_ALLOC_FREE : Tests {
my $dht = gsl_dht_alloc(5);
isa_ok($dht, 'Math::GSL::DHT');
gsl_dht_free($dht);
ok(!$@, 'gsl_dht_free');
}
sub DHT_NEW : Tests {
my $dht = gsl_dht_new(128, 1.0, 20);
isa_ok($dht, 'Math::GSL::DHT' );
}
sub DHT_SAMPLE_APPLY : Tests {
my $f_in = [(0) x 128 ];
my $f_out = [(0) x 128 ];
my $dht = gsl_dht_new(128, 1.0, 20);
for my $n (0..127) {
my $x = gsl_dht_x_sample($dht, $n);
$f_in->[$n] = exp(-$x);
}
ok( $#$f_in = 127, 'gsl_dht_x_sample' );
ok_status( gsl_dht_apply($dht, $f_in, $f_out));
ok( $#$f_out = 127, 'gsl_dht_apply' );
local $TODO = 'need a typemap for $f_in and $f_out';
# check that the relative error at most 2%
ok(
is_similar_relative ($f_out->[0], 0.181, 0.02),
"gsl_dht_apply output @{[$f_out->[0]]} != 0.181"
);
}
Test::Class->runtests;
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