#!/usr/bin/perl -w
-use Test::More;
+use Test::More tests => 19;
use strict;
-
-BEGIN
- {
- chdir 't' if -d 't';
- plan tests => 15;
-
- use lib '../lib';
- use lib '../blib/arch';
- use_ok('Devel::Size');
- }
+use Devel::Size qw(size total_size);
+use Scalar::Util qw(weaken);
can_ok ('Devel::Size', qw/
size
total_size
/);
-Devel::Size->import( qw(size total_size) );
-
die ("Uhoh, test uses an outdated version of Devel::Size")
- unless is ($Devel::Size::VERSION, '0.72_50', 'VERSION MATCHES');
+ unless is ($Devel::Size::VERSION, '0.75_52', 'VERSION MATCHES');
#############################################################################
# some basic checks:
my @ary1 = (\$a, \$a);
my @ary2 = (\$a, \$b);
-isnt ( total_size(\@ary2) - total_size(\@ary1), 0,
- 'total_size(\@ary1) < total_size(\@ary2)');
+cmp_ok(total_size(\@ary1), '<', total_size(\@ary2),
+ 'the tracking hash is working');
#############################################################################
# check that circular references don't mess things up
is (total_size($c1), total_size($c2), 'circular references');
-#############################################################################
-# GLOBS
-
-isnt (total_size(*foo), 0, 'total_size(*foo) > 0');
-
-#############################################################################
-# CODE ref
-
-my $code = sub { '1' };
-
-isnt (total_size($code), 0, 'total_size($code) > 0');
-
##########################################################
# RT#14849 (& RT#26781 and possibly RT#29238?)
-isnt( total_size( sub{ do{ my $t=0 }; } ), 0, 'total_size( sub{ my $t=0 } ) > 0' );
+cmp_ok( total_size( sub{ do{ my $t=0 }; } ), '>', 0,
+ 'total_size( sub{ my $t=0 } ) > 0' );
# CPAN RT #58484 and #58485
-isnt (total_size(\&total_size), 0, 'total_size(\&total_size) > 0');
+cmp_ok(total_size(\&total_size), '>', 0, 'total_size(\&total_size) > 0');
use constant LARGE => 'N' x 8192;
cmp_ok (total_size(\&LARGE), '>', 8192,
'total_size for a constant includes the constant');
+
+{
+ my $a = [];
+ my $b = \$a;
+ # making a weakref upgrades the target to PVMG and adds magic
+ is(total_size($a), total_size([]),
+ 'Any intial reference is dereferenced and discarded');
+}
+
+# Must call direct - avoid all copying:
+foreach(['undef', total_size(undef)],
+ ['no', total_size(1 == 0)],
+ ['yes', total_size(1 == 1)],
+ ) {
+ my ($name, $size) = @$_;
+ is($size, 0,
+ "PL_sv_$name is interpeter wide, so not counted as part of the structure's size");
+}
+
+{
+ # SvOOK stuff
+ my $uurk = "Perl Rules";
+ # This may upgrade the scalar:
+ $uurk =~ s/Perl//;
+ $uurk =~ s/^/Perl/;
+ my $before_size = total_size($uurk);
+ my $before_length = length $uurk;
+ cmp_ok($before_size, '>', $before_length, 'Size before is sane');
+ $uurk =~ s/Perl //;
+ is(total_size($uurk), $before_size,
+ "Size doesn't change because OOK is used");
+ cmp_ok(length $uurk, '<', $before_size, 'but string is shorter');
+}