#!/usr/bin/env perl
require 5.008;
BEGIN { $^W = 1; }
use strict;
use File::Copy;
use Digest::MD5;

chdir("predictors") or die "chdir testdir failed: $!\n";

require TestDriver;

my $td = new TestDriver('predictors');

cleanup();

$td->runtest("decode columns = 4",
             {$td->COMMAND => "predictors png decode in1 4 1 8"},
             {$td->STRING => "done\n",
              $td->EXIT_STATUS => 0},
             $td->NORMALIZE_NEWLINES);

$td->runtest("check output",
             {$td->FILE => "out"},
             {$td->FILE => "out1"});

$td->runtest("decode columns = 5",
             {$td->COMMAND => "predictors png decode in2 5 1 8"},
             {$td->STRING => "done\n",
              $td->EXIT_STATUS => 0},
             $td->NORMALIZE_NEWLINES);

$td->runtest("check output",
             {$td->FILE => "out"},
             {$td->FILE => "out2"});

$td->runtest("encode columns = 4",
             {$td->COMMAND => "predictors png encode out1 4 1 8"},
             {$td->STRING => "done\n",
              $td->EXIT_STATUS => 0},
             $td->NORMALIZE_NEWLINES);

$td->runtest("check output",
             {$td->FILE => "out"},
             {$td->FILE => "in1"});

$td->runtest("encode columns = 5",
             {$td->COMMAND => "predictors png encode out2 5 1 8"},
             {$td->STRING => "done\n",
              $td->EXIT_STATUS => 0},
             $td->NORMALIZE_NEWLINES);

$td->runtest("check output",
             {$td->FILE => "out"},
             {$td->FILE => "in2"});

my @other_png = (
    '01--32-3-16',
    '02--32-1-8',
    '03--32-3-8',
    '04--32-1-8',
    '05--32-3-8',
    '06--32-1-8',
    '07--32-3-8',
    '08--32-1-8',
    '09--32-3-8',
    '10--32-1-8',
    '11--32-3-8',
    '12--32-1-4',
    );

foreach my $i (@other_png)
{
    $i =~ m/^.*?--(\d+)-(\d+)-(\d+)$/ or die;
    my $columns = $1;
    my $samples_per_pixel = $2;
    my $bits_per_sample = $3;
    $td->runtest("decode $i",
                 {$td->COMMAND => "predictors png decode $i.data" .
                      " $columns $samples_per_pixel $bits_per_sample"},
                 {$td->STRING => "done\n",
                      $td->EXIT_STATUS => 0},
                 $td->NORMALIZE_NEWLINES);
    $td->runtest("check output for $i",
                 {$td->FILE => "out"},
                 {$td->FILE => "$i.decoded"});
}

my @tiff = (
    '01--16-1-8',
    '02--8-2-4',
    '03--4-1-16',
    );

foreach my $i (@tiff)
{
    $i =~ m/^.*?--(\d+)-(\d+)-(\d+)$/ or die;
    my $columns = $1;
    my $samples_per_pixel = $2;
    my $bits_per_sample = $3;
    $td->runtest("decode tiff $i",
                 {$td->COMMAND => "predictors tiff decode tiff-$i.data" .
                      " $columns $samples_per_pixel $bits_per_sample"},
                 {$td->STRING => "done\n",
                      $td->EXIT_STATUS => 0},
                 $td->NORMALIZE_NEWLINES);
    $td->runtest("check output for tiff-$i",
                 {$td->FILE => "out"},
                 {$td->FILE => "tiff-$i.decoded"});
    $td->runtest("encode tiff $i",
                 {$td->COMMAND => "predictors tiff encode tiff-$i.decoded" .
                      " $columns $samples_per_pixel $bits_per_sample"},
                 {$td->STRING => "done\n",
                      $td->EXIT_STATUS => 0},
                 $td->NORMALIZE_NEWLINES);
    $td->runtest("check output for tiff-$i",
                 {$td->FILE => "out"},
                 {$td->FILE => "tiff-$i.data"});
}

cleanup();

$td->report(8 + (2 * scalar(@other_png)) + (4 * scalar(@tiff)));

sub cleanup
{
    unlink "out";
}