use Test::More;
use PDL::LiteF;
use Test::Exception;
use Test::PDL;
use strict;
use warnings;
my $debug = 0;
$PDL::debug = $debug;
my $pa = sequence(3,4);
my $pb = yvals(zeroes(4,3)) + sequence(4);
my $pc = $pa->transpose->slice(':,-1:0');
# make sure compat alias works
thread_define 'tline(a(n);b(n))', over {
    $_[0] .= $_[1];
};
# not very useful examples but simple and test the essentials
broadcast_define 'tassgn(a(n,m);[o] b())', over {
    # sumover($_[0],$_[1]);
    $_[1] .= $_[0]->sum;
};
broadcast_define 'ttext(a(n=3)), NOtherPars => 1', over {
    ${$_[1]} .= sprintf("%.3f %.3f %.3f,\n",$_[0]->list);
  #join(' ',$_[0]->list) . ",\n";
};
broadcast_define 'tprint(a(n);b(n)), NOtherPars => 1', over {
        ${$_[2]} .= "$_[1]";
};
PDL::Core::set_debugging(1) if $debug;
tline($pc,$pb);
is_pdl $pc, $pb;
$pc = ones(5); # produce an error
throws_ok {
        tline($pa,$pc);
} qr/conflicting/;
$pa = ones(2,3,4)*sequence(4)->slice('*,*,:');
tassgn($pa,($pb=null));
is_pdl $pb, 6*sequence(4);
# test if setting named dim with '=' raises error
# correctly at runtime
$pa = sequence(4,4);
throws_ok {
        ttext($pa, \my $text);
} qr/conflicting/;
# test if dim=1 -> broadcastdim
note "testing tprint\n";
$pa = sequence(3);
$pb = pdl [1];
my $text = "";
tprint($pa, $pb, \$text);
is $text, '[1 1 1]';
# cut down from PDL::Apply which got broken by 2.057_01
thread_define '_apply_slice_ND(data(n);sl(2,m);[o]output(m)),NOtherPars=>2', over {
  my ($data, $sl, $output, $func, $args) = @_;
  _apply_slice_1D($sl, ones($data->type), my $output1D = null, $data, $func, $args);
  $output .= $output1D;
};
thread_define '_apply_slice_1D(slices(n);dummy();[o]output()),NOtherPars=>3', over {
  my ($slices, $dummy, $output1D, $data, $func, $args) = @_;
  my $data_sliced = slice($data, $slices->unpdl);
  $output1D .= PDL::Core::topdl($data_sliced->$func(@$args));
};
my $x = sequence(5,3,2);
my $slices = indx([0,2], [1,3], [2,4]);
my $y = null;
lives_ok { _apply_slice_ND($x, $slices, $y, 'sum', []) };
done_testing;