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[perl/modules/Variable-Magic.git] / t / 14-callbacks.t

diff --git a/t/14-callbacks.t b/t/14-callbacks.t
index dffb6d957ba7729b383815e1005258b3142612a0..77fdd00d68105e0107588826b02b3bc35809df47 100644 (file)
--- a/t/14-callbacks.t
+++ b/t/14-callbacks.t
@@ -3,26 +3,83 @@
 use strict;
 use warnings;
 
-use Test::More tests => 7;
+use Test::More tests => 17;
 
-use Variable::Magic qw/wizard cast/;
+use Variable::Magic qw<wizard cast>;
 
 my $wiz = eval { wizard get => sub { undef } };
-ok(!$@, "wizard creation doesn't croak ($@)");
-ok(defined $wiz, 'wizard is defined');
+is($@, '',             'wizard creation doesn\'t croak');
+ok(defined $wiz,       'wizard is defined');
 is(ref $wiz, 'SCALAR', 'wizard is a scalar ref');
 
 my $n = int rand 1000;
 my $a = $n;
 
 my $res = eval { cast $a, $wiz };
-ok(!$@, "cast doesn't croak ($@)");
-ok($res, 'cast is valid');
+is($@, '', 'cast doesn\'t croak');
+ok($res,   'cast is valid');
 
 my $x;
 eval {
  local $SIG{__WARN__} = sub { die };
  $x = $a
 };
-ok(!$@, 'callback returning undef doesn\'t warn/croak');
+is($@, '', 'callback returning undef doesn\'t warn/croak');
 is($x, $n, 'callback returning undef fails');
+
+{
+ my $c = 0;
+ sub X::wat { ++$c }
+ my $wiz = eval { wizard get => \'X::wat' };
+ is($@, '', 'wizard with a string callback doesn\'t croak');
+ my $b = $n;
+ my $res = eval { cast $b, $wiz };
+ is($@, '', 'cast a wizard with a string callback doesn\'t croak');
+ my $x;
+ eval {
+  local $SIG{__WARN__} = sub { die };
+  $x = $b;
+ };
+ is($@, '', 'string callback doesn\'t warn/croak');
+ is($c, 1,  'string callback is called');
+ is($x, $n, 'string callback returns the right thing');
+}
+
+my @callers;
+$wiz = wizard get => sub {
+ my @c;
+ my $i = 0;
+ while (@c = caller $i++) {
+  push @callers, [ @c[0, 1, 2] ];
+ }
+};
+
+my $b;
+cast $b, $wiz;
+
+my $u = $b;
+is_deeply(\@callers, [
+ ([ 'main', $0, __LINE__-2 ]) x 2,
+], 'caller into callback returns the right thing');
+
+@callers = ();
+$u = $b;
+is_deeply(\@callers, [
+ ([ 'main', $0, __LINE__-2 ]) x 2,
+], 'caller into callback returns the right thing (second time)');
+
+{
+ @callers = ();
+ my $u = $b;
+ is_deeply(\@callers, [
+  ([ 'main', $0, __LINE__-2 ]) x 2,
+ ], 'caller into callback into block returns the right thing');
+}
+
+@callers = ();
+eval { my $u = $b };
+is($@, '', 'caller into callback doesn\'t croak');
+is_deeply(\@callers, [
+ ([ 'main', $0, __LINE__-3 ]) x 3,
+], 'caller into callback into eval returns the right thing');
+