illegal.t

source of perl for linux application,

BEGIN {
    unless ("A" eq pack('U', 0x41)) {
	print "1..0 # Unicode::Normalize " .
	    "cannot stringify a Unicode code point\n";
	exit 0;
    }
}

BEGIN {
    if ($ENV{PERL_CORE}) {
        chdir('t') if -d 't';
        @INC = $^O eq 'MacOS' ? qw(::lib) : qw(../lib);
    }
}

BEGIN {
    unless (5.006001 <= $]) {
	print "1..0 # skipped: Perl 5.6.1 or later".
		" needed for this test\n";
	exit;
    }
}

#########################

BEGIN {
    use Unicode::Normalize qw(:all);

    unless (exists &Unicode::Normalize::bootstrap or 5.008 <= $]) {
	print "1..0 # skipped: XSUB, or Perl 5.8.0 or later".
		" needed for this test\n";
	print $@;
	exit;
    }
}

use Test;
use strict;
use warnings;

BEGIN { plan tests => 112 };

#########################

no warnings qw(utf8);
# To avoid warning in Test.pm, EXPR in ok(EXPR) must be boolean.

for my $u (0xD800, 0xDFFF, 0xFDD0, 0xFDEF, 0xFEFF, 0xFFFE, 0xFFFF,
	   0x1FFFF, 0x10FFFF, 0x110000, 0x7FFFFFFF)
{
    my $c = chr $u;
    ok($c eq NFD($c));  # 1
    ok($c eq NFC($c));  # 2
    ok($c eq NFKD($c)); # 3
    ok($c eq NFKC($c)); # 4
    ok($c eq FCD($c));  # 5
    ok($c eq FCC($c));  # 6
    ok($c eq decompose($c));   # 7
    ok($c eq decompose($c,1)); # 8
    ok($c eq reorder($c));     # 9
    ok($c eq compose($c));     # 10
}

our $proc;    # before the last starter
our $unproc;  # the last starter and after

sub _pack_U   { Unicode::Normalize::pack_U(@_) }

($proc, $unproc) = splitOnLastStarter(_pack_U(0x41, 0x300, 0x327, 0xFFFF));
ok($proc   eq _pack_U(0x41, 0x300, 0x327));
ok($unproc eq "\x{FFFF}");