Merge perl 5.24 fixes from davem

[perl/modules/Scope-Upper.git] / t / 40-localize_delete-target.t

diff --git a/t/40-localize_delete-target.t b/t/40-localize_delete-target.t
index 999fe9eb127bebf2ca8e3651f31a39c4c81e1757..26a81952010a26c7a3e43b16c7329f0a56e949af 100644 (file)
--- a/t/40-localize_delete-target.t
+++ b/t/40-localize_delete-target.t
@@ -3,9 +3,9 @@
 use strict;
 use warnings;
 
-use Test::More tests => 36;
+use Test::More tests => 53 + 4;
 
-use Scope::Upper qw/localize_delete UP HERE/;
+use Scope::Upper qw<localize_delete UP HERE>;
 
 # Arrays
 
@@ -107,6 +107,16 @@ our @a;
  is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (exists) => UP [end]';
 }
 
+{
+ {
+  localize_delete '@nonexistent', 2;
+  is_deeply eval('*nonexistent{ARRAY}'), [ ],
+                       'localize_delete "@nonexistent", anything => HERE [ok]';
+ }
+ is_deeply eval('*nonexistent{ARRAY}'), [ ],
+                       'localize_delete "@nonexistent", anything => HERE [end]';
+}
+
 # Hashes
 
 our %h;
@@ -142,7 +152,17 @@ our %h;
  is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "a" => UP [end]';
 }
 
-# Others
+{
+ {
+  localize_delete '%nonexistent', 'a';
+  is_deeply eval('*nonexistent{HASH}'), { },
+                       'localize_delete "%nonexistent", anything => HERE [ok]';
+ }
+ is_deeply eval('*nonexistent{HASH}'), { },
+                       'localize_delete "%nonexistent", anything => HERE [end]';
+}
+
+# Scalars
 
 our $x = 1;
 {
@@ -151,6 +171,18 @@ our $x = 1;
 }
 is $x, 1, 'localize_delete "$x", anything => HERE [end]';
 
+{
+ {
+  localize_delete '$nonexistent', 2;
+  is eval('${*nonexistent{SCALAR}}'), undef,
+                       'localize_delete "$nonexistent", anything => HERE [ok]';
+ }
+ is eval('${*nonexistent{SCALAR}}'), undef,
+                       'localize_delete "$nonexistent", anything => HERE [end]';
+}
+
+# Code
+
 sub x { 1 };
 {
  localize_delete '&x', 2 => HERE;
@@ -158,6 +190,16 @@ sub x { 1 };
 }
 is x(), 1, 'localize_delete "&x", anything => HERE [end]';
 
+{
+ {
+  localize_delete '&nonexistent', 2;
+  is eval('exists &nonexistent'), !1,
+                       'localize_delete "&nonexistent", anything => HERE [ok]';
+ }
+ is eval('exists &nonexistent'), !1,
+                       'localize_delete "&nonexistent", anything => HERE [end]';
+}
+
 {
  localize_delete *x, sub { } => HERE;
  is !exists(&x),  1, 'localize_delete *x, anything => HERE [ok 1]';
@@ -165,3 +207,71 @@ is x(), 1, 'localize_delete "&x", anything => HERE [end]';
 }
 is x(), 1, 'localize_delete *x, anything => HERE [end 1]';
 is $x,  1, 'localize_delete *x, anything => HERE [end 2]';
+
+sub X::foo { 'X::foo' }
+
+{
+ {
+  {
+   localize_delete '&X::foo', undef => UP;
+   is(X->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [not yet X]');
+  }
+  ok(!X->can('foo'), 'localize_delete "&X::foo", undef => UP [ok X]');
+ }
+ is(X->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [end X]');
+}
+
+@Y::ISA = 'X';
+
+{
+ {
+  {
+   localize_delete '&X::foo', undef => UP;
+   is(Y->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [not yet Y]');
+  }
+  ok(!Y->can('foo'), 'localize_delete "&X::foo", undef => UP [ok Y]');
+ }
+ is(Y->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [end Y]');
+}
+
+
+{
+ local *Y::foo = sub { 'Y::foo' };
+ {
+  {
+   localize_delete '&Y::foo', undef => UP;
+   is(Y->foo(), 'Y::foo', 'localize_delete "&Y::foo", undef => UP [not yet]');
+  }
+  is(Y->foo(), 'X::foo', 'localize_delete "&Y::foo", undef => UP [ok]');
+ }
+ is(Y->foo(), 'Y::foo', 'localize_delete "&Y::foo", undef => UP [end]');
+}
+
+{
+ # Prevent 'only once' warnings
+ local *Y::foo = *Y::foo;
+}
+
+# Invalid
+
+sub invalid_ref { qr/^Invalid \Q$_[0]\E reference as the localization target/ }
+
+{
+ eval { localize_delete \1, 0 => HERE };
+ like $@, invalid_ref('SCALAR'), 'invalid localize_delete \1, 0 => HERE';
+}
+
+{
+ eval { localize_delete [ ], 0 => HERE };
+ like $@, invalid_ref('ARRAY'),  'invalid localize_delete [ ], 0 => HERE';
+}
+
+{
+ eval { localize_delete { }, 0 => HERE };
+ like $@, invalid_ref('HASH'),   'invalid localize_delete { }, 0 => HERE';
+}
+
+{
+ eval { localize_delete sub { }, 0 => HERE };
+ like $@, invalid_ref('CODE'),   'invalid localize_delete sub { }, 0 => HERE';
+}