--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/objpict_test.pl	Mon Jun 27 20:37:51 2011 +0100
@@ -0,0 +1,80 @@
+#!/usr/bin/perl
+
+# objpict_test.pl
+# This file is part of the testsuite of the Radiance csh2perl project.
+# You may copy and modify this file as basis for other tests.
+#
+# (c) Axel Jacobs, 26 June 2011
+
+use strict;
+use warnings;
+
+my $script = "objpict";
+my $csh = "../orig/$script.csh";
+my $perl = "../bin/$script.perl";
+print "script: $script\n";
+
+use File::Temp qw/ tempdir /;
+my $tmpdir = tempdir( CLEANUP => 0 );
+
+my $object = "data/objects/mybox.rad";
+my $material = "data/objects/objects.mat";
+
+# Options are arrays of [STDIN, command-line options].
+# Please include the pipe symbol as part of STDIN.
+# Put a leading space in front of STDIN to line up the output.
+my @options = (
+		["", "$material $object"],
+		[" cat $material $object |", ""],
+);
+
+# Run old CSH and new Perl script with different options,
+# compare the resulting images.
+my $total = 0;
+my $fail = 0;
+my $index = 0;
+my $opts;
+foreach $opts (@options) {
+		my $stdin = @$opts[0];
+		my $args = @$opts[1];
+		$total++;
+
+		my $cshout = "$tmpdir/${script}_csh$index.hdr";
+		my $cshcmd = "$script.csh $args > $cshout";
+		print " $stdin $cshcmd\n";
+		system "$stdin csh ../orig/$cshcmd";
+
+		my $perlout = "$tmpdir/${script}_perl$index.hdr";
+		my $perlcmd = "$script.pl $args > $perlout";
+		print " $stdin $perlcmd\n";
+		system "$stdin perl ../bin/$perlcmd";
+
+		my $diffimg = "$tmpdir/${script}_diff$index.hdr";
+		my $uval = &compare_images("$cshout", "$perlout", "$diffimg");
+		if( $uval > 0 ) {
+			print "      Error: Diff image $diffimg contains $uval unique values (should be one).\n";
+			system "ximage $diffimg";
+			$fail++;
+		} else {
+			print "      Ok: Images $cshout and $perlout are identical.\n";
+		}
+}
+
+print "$fail of $total tests failed.\n";
+print "temp dir $tmpdir not removed. Please remove manually.\n";
+
+sub compare_images() {
+	my $in1 = shift;
+	my $in2 = shift;
+	my $out = shift;
+
+	my $cmd = "pcomb $in1 -s -1 $in2 > $out";
+	print "    $cmd\n";
+	system "$cmd";
+	my $unique = `pvalue -h -H -d -u $out`;
+	my $unique_cnt = scalar( split( '\n', $unique ) );
+
+	return $unique_cnt;
+}
+
+#EOF