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|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
print "1..36\n";
print defined($a) ? "not ok 1\n" : "ok 1\n";
$a = 1+1;
print defined($a) ? "ok 2\n" : "not ok 2\n";
undef $a;
print defined($a) ? "not ok 3\n" : "ok 3\n";
$a = "hi";
print defined($a) ? "ok 4\n" : "not ok 4\n";
$a = $b;
print defined($a) ? "not ok 5\n" : "ok 5\n";
@ary = ("1arg");
$a = pop(@ary);
print defined($a) ? "ok 6\n" : "not ok 6\n";
$a = pop(@ary);
print defined($a) ? "not ok 7\n" : "ok 7\n";
@ary = ("1arg");
$a = shift(@ary);
print defined($a) ? "ok 8\n" : "not ok 8\n";
$a = shift(@ary);
print defined($a) ? "not ok 9\n" : "ok 9\n";
$ary{'foo'} = 'hi';
print defined($ary{'foo'}) ? "ok 10\n" : "not ok 10\n";
print defined($ary{'bar'}) ? "not ok 11\n" : "ok 11\n";
undef $ary{'foo'};
print defined($ary{'foo'}) ? "not ok 12\n" : "ok 12\n";
print defined(@ary) ? "ok 13\n" : "not ok 13\n";
print defined(%ary) ? "ok 14\n" : "not ok 14\n";
undef @ary;
print defined(@ary) ? "not ok 15\n" : "ok 15\n";
undef %ary;
print defined(%ary) ? "not ok 16\n" : "ok 16\n";
@ary = (1);
print defined @ary ? "ok 17\n" : "not ok 17\n";
%ary = (1,1);
print defined %ary ? "ok 18\n" : "not ok 18\n";
sub foo { print "ok 19\n"; }
&foo || print "not ok 19\n";
print defined &foo ? "ok 20\n" : "not ok 20\n";
undef &foo;
print defined(&foo) ? "not ok 21\n" : "ok 21\n";
eval { undef $1 };
print $@ =~ /^Modification of a read/ ? "ok 22\n" : "not ok 22\n";
eval { $1 = undef };
print $@ =~ /^Modification of a read/ ? "ok 23\n" : "not ok 23\n";
{
require Tie::Hash;
tie my %foo, 'Tie::StdHash';
print defined %foo ? "ok 24\n" : "not ok 24\n";
%foo = ( a => 1 );
print defined %foo ? "ok 25\n" : "not ok 25\n";
}
{
require Tie::Array;
tie my @foo, 'Tie::StdArray';
print defined @foo ? "ok 26\n" : "not ok 26\n";
@foo = ( a => 1 );
print defined @foo ? "ok 27\n" : "not ok 27\n";
}
{
# [perl #17753] segfault when undef'ing unquoted string constant
eval 'undef tcp';
print $@ =~ /^Can't modify constant item/ ? "ok 28\n" : "not ok 28\n";
}
# bugid 3096
# undefing a hash may free objects with destructors that then try to
# modify the hash. To them, the hash should appear empty.
$test = 29;
%hash = (
key1 => bless({}, 'X'),
key2 => bless({}, 'X'),
);
undef %hash;
sub X::DESTROY {
print "not " if keys %hash; print "ok $test\n"; $test++;
print "not " if values %hash; print "ok $test\n"; $test++;
print "not " if each %hash; print "ok $test\n"; $test++;
print "not " if defined delete $hash{'key2'}; print "ok $test\n"; $test++;
}
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