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ec57fb9319
This moves PerlIO::scalar into core. This prevents unpredictable behavior when the module can't be loaded, and also allows miniperl to run tests that need :scalar handles.
45 lines
714 B
Perl
45 lines
714 B
Perl
#!perl
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use strict;
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use warnings;
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BEGIN {
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chdir 't' if -d 't';
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require './test.pl';
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set_up_inc('../lib');
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skip_all('Can\'t run under miniperl') if is_miniperl();
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}
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plan(19);
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use IO::Handle; # ungetc()
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my $s = 'foo';
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Internals::SvREADONLY($s, 1);
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eval{
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$s = 'bar';
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};
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like $@, qr/Modification of a read-only value/, '$s is readonly';
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ok open(my $io, '<', \$s), 'open';
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getc $io;
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my $a = ord 'A';
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note "buffer[$s]";
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is $io->ungetc($a), $a, 'ungetc';
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note "buffer[$s]";
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is getc($io), chr($a), 'getc';
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is $s, 'foo', '$s remains "foo"';
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is getc($io), 'o', 'getc/2';
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is getc($io), 'o', 'getc/3';
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is getc($io), undef, 'getc/4';
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for my $c($a .. ($a+10)){
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is $io->ungetc($c), $c, "ungetc($c)";
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}
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