#! @PERL@ -w
# -*- perl -*-
# @configure_input@

require 5.002;
use strict;
use POSIX qw (assert);

BEGIN { push @INC, '@srcdir@' if '@srcdir@' ne '.'; }
use Test;

$| = 1;

my $xx = $ARGV[0];

print <<EOF;
#! /bin/sh
# This script was generated automatically by build-script.
case \$# in
  0) xx='$xx';;
  *) xx="\$1";;
esac
test "\$VERBOSE" && echo=echo || echo=:
\$echo testing program: \$xx
errors=0
test "\$srcdir" || srcdir=.
test "\$VERBOSE" && \$xx --version 2> /dev/null
EOF

{
  my %seen;

  my $test_vector;

  foreach $test_vector (@Test::t)
    {
      my ($test_name, $flags, $in_spec, $expected, $e_ret_code, $rest) =
	@{$test_vector};
      assert (defined $e_ret_code && !defined $rest);
      assert (!ref $test_name);
      assert (!ref $flags);
      assert (!ref $expected);
      assert (!ref $e_ret_code);

      die "$0: $.: duplicate test name \`$test_name'\n"
	if (defined $seen{$test_name});
      $seen{$test_name} = 1;
    }
}

my $test_vector;
foreach $test_vector (@Test::t)
  {
    my ($test_name, $flags, $in_spec, $expected, $e_ret_code)
	= @{$test_vector};

    my @in_file;
    if (ref $in_spec)
      {
	assert (ref $in_spec eq 'ARRAY');
	my $i = 0;
	my $file_spec;
	foreach $file_spec (@$in_spec)
	  {
	    # A file spec may be a string or a reference.
	    # If it's a string, that string is to be the contents of a
	    # generated (by this script) file with name derived from the
	    # name of this test.
	    # If it's a reference, then it must be the name of an existing
	    # file.
	    if (ref $file_spec)
	      {
		assert (ref $file_spec eq 'SCALAR');
		my $existing_file = $$file_spec;
		# FIXME: make sure $existing_file exists somewhere.
		push (@in_file, $existing_file);
	      }
	    else
	      {
		++$i;
		my $file_contents = $file_spec;
		my $gen_file = "t$test_name.in$i";
		push (@in_file, $gen_file);
		open (IN, ">$gen_file") || die "$0: $gen_file: $!\n";
		print IN $file_contents;
		close (IN) || die "$0: $gen_file: $!\n";
	      }
	  }
      }
    else
      {
	my $file_contents = $in_spec;
	my $gen_file = "t$test_name.in";
	push (@in_file, $gen_file);
	open (IN, ">$gen_file") || die "$0: $gen_file: $!\n";
	print IN $file_contents;
	close (IN) || die "$0: $gen_file: $!\n";
      }

    my $in1 = "t$test_name.in1";
    my $in2 = "t$test_name.in2";
    my $exp_name = "t$test_name.exp";
    my $out = "t$test_name.out";

    open (EXP, ">$exp_name") || die "$0: $exp_name: $!\n";
    print EXP $expected;
    close (EXP) || die "$0: $exp_name: $!\n";

    my $err_output = "t$test_name.err";

    my @srcdir_rel_in_file;
    my $f;
    foreach $f (@in_file)
      {
	push (@srcdir_rel_in_file, "\$srcdir/$f")
      }

    my $cmd = "\$xx $flags " . join (' ', @srcdir_rel_in_file)
      . " > $out 2> $err_output";
    $exp_name = "\$srcdir/$exp_name";
    print <<EOF ;
$cmd
code=\$?
if test \$code != $e_ret_code ; then
  \$echo Test $test_name failed: $xx return code \$code differs from expected value $e_ret_code 1>&2
  errors=`expr \$errors + 1`
else
  cmp $out $exp_name
  case \$? in
    0) if test "\$VERBOSE" ; then \$echo passed $test_name; fi ;; # equal files
    1) \$echo Test $test_name failed: files $out and $exp_name differ 1>&2;
       errors=`expr \$errors + 1` ;;
    2) \$echo Test $test_name may have failed. 1>&2;
       \$echo The command \"cmp $out $exp_name\" failed. 1>&2 ;
       errors=`expr \$errors + 1` ;;
  esac
fi
test -s $err_output || rm -f $err_output
EOF
  }
print <<EOF2 ;
if test \$errors = 0 ; then
  \$echo Passed all tests. 1>&2
else
  \$echo Failed \$errors tests. 1>&2
fi
test \$errors = 0 || errors=1
exit \$errors
EOF2