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package Math::GSL::Permutation::Test;
use base q{Test::Class};
use Test::More tests => 85;
use Math::GSL qw/:all/;
use Math::GSL::Vector qw/:all/;
use Math::GSL::Test qw/:all/;
use Math::GSL::Errno qw/:all/;
use Math::GSL::Permutation qw/:all/;
use Test::Exception;
use Data::Dumper;
use strict;
BEGIN { gsl_set_error_handler_off(); }
sub make_fixture : Test(setup) {
my $self = shift;
$self->{permutation} = gsl_permutation_alloc(6);
}
sub teardown : Test(teardown) {
my $self = shift;
unlink 'permutation' if -f 'permutation';
gsl_permutation_free($self->{permutation});
}
sub GSL_PERMUTATION_ALLOC : Tests {
my $p = gsl_permutation_alloc(6);
isa_ok($p, 'Math::GSL::Permutation');
}
sub GSL_PERMUTATION_GET_INIT : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
map { is(gsl_permutation_get($self->{permutation}, $_), $_) } (0..5);
}
sub GSL_PERMUTATION_CALLOC : Tests {
my $p = gsl_permutation_calloc(6);
isa_ok($p, 'Math::GSL::Permutation');
map { is(gsl_permutation_get($p, $_), $_) } (0..5);
}
sub GSL_PERMUTATION_MEMCPY : Tests {
my $self = shift;
my $p = gsl_permutation_alloc(6);
gsl_permutation_init($self->{permutation});
gsl_permutation_memcpy($p, $self->{permutation});
map { is(gsl_permutation_get($p, $_), $_) } (0..5);
}
sub GSL_PERMUTATION_SWAP : Tests {
my $self=shift;
gsl_permutation_init($self->{permutation});
is(gsl_permutation_swap($self->{permutation}, 0, 5), 0);
is(gsl_permutation_get($self->{permutation}, 0), 5);
is(gsl_permutation_get($self->{permutation}, 5), 0);
map { is(gsl_permutation_get($self->{permutation}, $_), $_) } (1..4);
}
sub GSL_PERMUTATION_SIZE : Tests {
my $self=shift;
gsl_permutation_init($self->{permutation});
is(gsl_permutation_size($self->{permutation}), 6);
}
sub GSL_PERMUTATION_VALID : Tests {
my $self=shift;
gsl_permutation_init($self->{permutation});
is(gsl_permutation_valid($self->{permutation}), 0);
}
sub GSL_PERMUTATION_REVERSE : Tests {
my $self=shift;
gsl_permutation_init($self->{permutation});
gsl_permutation_reverse($self->{permutation});
is(gsl_permutation_get($self->{permutation}, 0), 5);
is(gsl_permutation_get($self->{permutation}, 1), 4);
is(gsl_permutation_get($self->{permutation}, 2), 3);
is(gsl_permutation_get($self->{permutation}, 3), 2);
is(gsl_permutation_get($self->{permutation}, 4), 1);
is(gsl_permutation_get($self->{permutation}, 5), 0);
}
sub GSL_PERMUTATION_INVERSE : Tests {
my $self = shift;
my $p = gsl_permutation_alloc(6);
gsl_permutation_init($self->{permutation});
gsl_permutation_inverse($p, $self->{permutation});
map { is(gsl_permutation_get($p, $_), $_) } (0..5);
}
sub GSL_PERMUTATION_NEXT : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
is(gsl_permutation_next($self->{permutation}), 0);
map { is(gsl_permutation_get($self->{permutation}, $_), $_) } (0..3);
is(gsl_permutation_get($self->{permutation}, 4), 5);
is(gsl_permutation_get($self->{permutation}, 5), 4);
}
sub GSL_PERMUTATION_PREV : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
gsl_permutation_swap($self->{permutation}, 4, 5);
is(gsl_permutation_prev($self->{permutation}), 0);
map { is(gsl_permutation_get($self->{permutation}, $_), $_) } (0..5);
}
#sub GSL_PERMUTE : Tests {
# my $self = shift;
# my @data = [5, 4, 3, 2, 1, 0];
# gsl_permutation_init($self->{permutation});
# gsl_permute($self->{permutation}, \@data, 1); # need a typemap to input and output an array of double
# map { is($data[$_], $_) } (0..5);
#}
#sub GSL_PERMUTE_INVERSE : Tests {
# my $self = shift;
# my @data = [5, 4, 3, 2, 1, 0];
# gsl_permutation_init($self->{permutation});
# gsl_permute_inverse($self->{permutation}, \@data, 1); # need a typemap to input and output an array of double
# map { is($data[$_], $_) } (0..5);
#}
sub GSL_PERMUTE_VECTOR : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
gsl_permutation_swap($self->{permutation}, 0, 1);
my $vec = gsl_vector_alloc(6);
map { gsl_vector_set($vec, $_, $_) } (0..5);
gsl_permute_vector($self->{permutation}, $vec);
is(gsl_vector_get($vec, 0), 1);
is(gsl_vector_get($vec, 1), 0);
map { is(gsl_vector_get($vec, $_), $_) } (2..5);
}
sub GSL_PERMUTE_VECTOR_INVERSE : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
gsl_permutation_swap($self->{permutation}, 0, 1);
my $vec = gsl_vector_alloc(6);
map { gsl_vector_set($vec, $_, $_) } (0..5);
gsl_permute_vector_inverse($self->{permutation}, $vec);
is(gsl_vector_get($vec, 0), 1);
is(gsl_vector_get($vec, 1), 0);
map { is(gsl_vector_get($vec, $_), $_) } (2..5);
}
sub GSL_PERMUTATION_MUL : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
gsl_permutation_swap($self->{permutation}, 0, 1);
my $p2 = gsl_permutation_alloc(6);
gsl_permutation_init($p2);
gsl_permutation_swap($p2, 0, 5);
my $p = gsl_permutation_alloc(6) ;
gsl_permutation_mul ($p, $p2, $self->{permutation});
is(gsl_permutation_get($p, 0), 5);
is(gsl_permutation_get($p, 1), 0);
is(gsl_permutation_get($p, 5), 1);
map { is(gsl_permutation_get($p, $_), $_)} (2..4);
}
sub GSL_PERMUTATION_FWRITE_FREAD : Tests {
my $self = shift;
gsl_permutation_init($self->{permutation});
my $fh = gsl_fopen("permutation", 'w');
gsl_permutation_fwrite($fh, $self->{permutation});
fclose($fh);
my $p = gsl_permutation_alloc(6);
$fh = gsl_fopen("permutation", 'r');
gsl_permutation_fread($fh, $p);
map { is(gsl_permutation_get($p, $_), $_) } (0..5);
fclose($fh);
}
sub GSL_PERMUTATION_FPRINTF_FSCANF : Tests {
my $self = shift;
my $fh = gsl_fopen("permutation", 'w');
gsl_permutation_init($self->{permutation});
ok_status( gsl_permutation_fprintf($fh, $self->{permutation}, "%f"));
ok_status(gsl_fclose($fh));
local $TODO = "odd error with fscanf";
$fh = gsl_fopen("permutation", 'r');
my $p = gsl_permutation_alloc(6);
ok_status(gsl_permutation_fscanf($fh, $p));
is_deeply( [ map {gsl_permutation_get($p, $_) } (0..5) ],
[ 0 .. 5 ],
);
#ok_status(gsl_fclose($fh));
}
sub NEW: Tests {
my $perm = Math::GSL::Permutation->new(42);
isa_ok($perm, 'Math::GSL::Permutation' );
}
sub AS_LIST: Tests {
my $perm = Math::GSL::Permutation->new(5);
is_deeply( [ $perm->as_list ] , [ 0 .. 4 ] );
}
Test::Class->runtests;
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