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|
#!./perl
BEGIN {
chdir 't' if -d 't';
require './test.pl';
@INC = '../lib';
}
plan (tests => 36);
print "not " unless length("") == 0;
print "ok 1\n";
print "not " unless length("abc") == 3;
print "ok 2\n";
$_ = "foobar";
print "not " unless length() == 6;
print "ok 3\n";
# Okay, so that wasn't very challenging. Let's go Unicode.
{
my $a = "\x{41}";
print "not " unless length($a) == 1;
print "ok 4\n";
$test++;
use bytes;
print "not " unless $a eq "\x41" && length($a) == 1;
print "ok 5\n";
$test++;
}
{
my $a = pack("U", 0xFF);
print "not " unless length($a) == 1;
print "ok 6\n";
$test++;
use bytes;
if (ord('A') == 193)
{
printf "#%vx for 0xFF\n",$a;
print "not " unless $a eq "\x8b\x73" && length($a) == 2;
}
else
{
print "not " unless $a eq "\xc3\xbf" && length($a) == 2;
}
print "ok 7\n";
$test++;
}
{
my $a = "\x{100}";
print "not " unless length($a) == 1;
print "ok 8\n";
$test++;
use bytes;
if (ord('A') == 193)
{
printf "#%vx for 0x100\n",$a;
print "not " unless $a eq "\x8c\x41" && length($a) == 2;
}
else
{
print "not " unless $a eq "\xc4\x80" && length($a) == 2;
}
print "ok 9\n";
$test++;
}
{
my $a = "\x{100}\x{80}";
print "not " unless length($a) == 2;
print "ok 10\n";
$test++;
use bytes;
if (ord('A') == 193)
{
printf "#%vx for 0x100 0x80\n",$a;
print "not " unless $a eq "\x8c\x41\x8a\x67" && length($a) == 4;
}
else
{
print "not " unless $a eq "\xc4\x80\xc2\x80" && length($a) == 4;
}
print "ok 11\n";
$test++;
}
{
my $a = "\x{80}\x{100}";
print "not " unless length($a) == 2;
print "ok 12\n";
$test++;
use bytes;
if (ord('A') == 193)
{
printf "#%vx for 0x80 0x100\n",$a;
print "not " unless $a eq "\x8a\x67\x8c\x41" && length($a) == 4;
}
else
{
print "not " unless $a eq "\xc2\x80\xc4\x80" && length($a) == 4;
}
print "ok 13\n";
$test++;
}
# Now for Unicode with magical vtbls
{
require Tie::Scalar;
my $a;
tie $a, 'Tie::StdScalar'; # makes $a magical
$a = "\x{263A}";
print "not " unless length($a) == 1;
print "ok 14\n";
$test++;
use bytes;
print "not " unless length($a) == 3;
print "ok 15\n";
$test++;
}
{
# Play around with Unicode strings,
# give a little workout to the UTF-8 length cache.
my $a = chr(256) x 100;
print length $a == 100 ? "ok 16\n" : "not ok 16\n";
chop $a;
print length $a == 99 ? "ok 17\n" : "not ok 17\n";
$a .= $a;
print length $a == 198 ? "ok 18\n" : "not ok 18\n";
$a = chr(256) x 999;
print length $a == 999 ? "ok 19\n" : "not ok 19\n";
substr($a, 0, 1) = '';
print length $a == 998 ? "ok 20\n" : "not ok 20\n";
}
curr_test(21);
require Tie::Scalar;
$u = "ASCII";
tie $u, 'Tie::StdScalar', chr 256;
is(length $u, 1, "Length of a UTF-8 scalar returned from tie");
is(length $u, 1, "Again! Again!");
$^W = 1;
my $warnings = 0;
$SIG{__WARN__} = sub {
$warnings++;
warn @_;
};
is(length(undef), undef, "Length of literal undef");
my $u;
is(length($u), undef, "Length of regular scalar");
$u = "Gotcha!";
tie $u, 'Tie::StdScalar';
is(length($u), undef, "Length of tied scalar (MAGIC)");
is($u, undef);
{
package U;
use overload '""' => sub {return undef;};
}
my $uo = bless [], 'U';
is(length($uo), undef, "Length of overloaded reference");
my $ul = 3;
is(($ul = length(undef)), undef,
"Returned length of undef with result in TARG");
is($ul, undef, "Assigned length of undef with result in TARG");
$ul = 3;
is(($ul = length($u)), undef,
"Returned length of tied undef with result in TARG");
is($ul, undef, "Assigned length of tied undef with result in TARG");
$ul = 3;
is(($ul = length($uo)), undef,
"Returned length of overloaded undef with result in TARG");
is($ul, undef, "Assigned length of overloaded undef with result in TARG");
# ok(!defined $uo); Turns you can't test this. FIXME for pp_defined?
is($warnings, 0, "There were no warnings");
{
my $y = "\x{100}BC";
is(index($y, "B"), 1, 'adds an intermediate position to the offset cache');
is(length $y, 3,
'Check that sv_len_utf8() can take advantage of the offset cache');
}
|
