Fix an offset of 1 with len magic on scalars

[perl/modules/Variable-Magic.git] / t / 22-len.t

diff --git a/t/22-len.t b/t/22-len.t
index 8ea332c5fc8603ff3405370699604bcd62aba468..ec74580a488a7bb4592bf49414f6b847b25f2f99 100644 (file)
--- a/t/22-len.t
+++ b/t/22-len.t
@@ -3,12 +3,12 @@
 use strict;
 use warnings;
 
-use Test::More tests => 11;
+use Test::More tests => 13;
 
 use Variable::Magic qw/wizard cast VMG_COMPAT_SCALAR_LENGTH_NOLEN/;
 
 my $c = 0;
-my $n = int rand 1000;
+my $n = 1 + int rand 1000;
 my $wiz = wizard len => sub { ++$c; return $n };
 is($c, 0, 'len : create wizard');
 
@@ -30,21 +30,26 @@ $b = scalar @a;
 is($c, 3, 'len : get array length 0');
 is($b, 0, 'len : get array length 0 correctly');
 
-$c = 0;
-$n = int rand 1000;
-# length magic on scalars needs also get magic to be triggered.
-$wiz = wizard get => sub { return 56478 },
-              len => sub { ++$c; return $n };
+SKIP: {
+ skip 'length() no longer calls mg_len magic' => 5 if VMG_COMPAT_SCALAR_LENGTH_NOLEN;
 
-my $x = int rand 1000;
+ $c = 0;
+ $n = 1 + int rand 1000;
+ # length magic on scalars needs also get magic to be triggered.
+ $wiz = wizard get => sub { return 56478 },
+               len => sub { ++$c; return $n };
 
-SKIP: {
- skip 'length() no longer calls mg_len magic', 3 if VMG_COMPAT_SCALAR_LENGTH_NOLEN;
+ my $x = int rand 1000;
 
  cast $x, $wiz;
  is($c, 0, 'len : cast on scalar');
 
  $b = length $x;
- is($c, 1,      'len : get scalar length');
- is($b, $n - 1, 'len : get scalar length correctly');
+ is($c, 1,  'len : get scalar length');
+ is($b, $n, 'len : get scalar length correctly');
+
+ $n = 0;
+ $b = length $x;
+ is($c, 2,  'len : get scalar length 0');
+ is($b, $n, 'len : get scalar length 0 correctly');
 }