Add localize_delete()

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

diff --git a/t/40-localize_delete.t b/t/40-localize_delete.t
new file mode 100644 (file)
index 0000000..6ddf79c
--- /dev/null
+++ b/t/40-localize_delete.t
@@ -0,0 +1,139 @@
+#!perl -T
+
+use strict;
+use warnings;
+
+use Test::More tests => 30;
+
+use Scope::Upper qw/localize_delete/;
+
+# Arrays
+
+our @a;
+
+{
+ local @a = (4 .. 6);
+ {
+  localize_delete '@main::a', 1, 0;
+  is_deeply \@a, [ 4, undef, 6 ], 'localize_delete "@a", 1, 0 [ok]';
+ }
+ is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 1, 0 [end]';
+}
+
+{
+ local @a = (4 .. 6);
+ {
+  localize_delete '@main::a', 4, 0;
+  is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (nonexistent), 0 [ok]';
+ }
+ is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (nonexistent), 0 [end]';
+}
+
+{
+ local @a = (4 .. 6);
+ local $a[4] = 7;
+ {
+  localize_delete '@main::a', 4, 0;
+  is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (exists), 0 [ok]';
+ }
+ is_deeply \@a, [ 4 .. 6, undef, 7 ], 'localize_delete "@a", 4 (exists), 0 [end]';
+}
+
+{
+ local @a = (4 .. 6);
+ {
+  local @a = (5 .. 7);
+  {
+   localize_delete '@main::a', 1, 1;
+   is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 1, 1 [not yet]';
+  }
+  is_deeply \@a, [ 5, undef, 7 ], 'localize_delete "@a", 1, 1 [ok]';
+ }
+ is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 1, 1 [end]';
+}
+
+{
+ local @a = (4 .. 6);
+ {
+  local @a = (5 .. 7);
+  {
+   localize_delete '@main::a', 4, 1;
+   is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 4 (nonexistent), 1 [not yet]';
+  }
+  is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 4 (nonexistent), 1 [ok]';
+ }
+ is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (nonexistent), 1 [end]';
+}
+
+{
+ local @a = (4 .. 6);
+ {
+  local @a = (5 .. 7);
+  local $a[4] = 8;
+  {
+   localize_delete '@main::a', 4, 1;
+   is_deeply \@a, [ 5 .. 7, undef, 8 ], 'localize_delete "@a", 4 (exists), 1 [not yet]';
+  }
+  is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 4 (exists), 1 [ok]';
+ }
+ is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (exists), 1 [end]';
+}
+
+# Hashes
+
+our %h;
+
+{
+ local %h = (a => 1, b => 2);
+ {
+  localize_delete '%main::h', 'a', 0;
+  is_deeply \%h, { b => 2 }, 'localize_delete "%h", "a", 0 [ok]';
+ }
+ is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "a", 0 [end]';
+}
+
+{
+ local %h = (a => 1, b => 2);
+ {
+  localize_delete '%main::h', 'c', 0;
+  is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "c", 0 [ok]';
+ }
+ is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "c", 0 [end]';
+}
+
+{
+ local %h = (a => 1, b => 2);
+ {
+  local %h = (a => 3, c => 4);
+  {
+   localize_delete '%main::h', 'a', 1;
+   is_deeply \%h, { a => 3, c => 4 }, 'localize_delete "%h", "a", 1 [not yet]';
+  }
+  is_deeply \%h, { c => 4 }, 'localize_delete "%h", "a", 1 [ok]';
+ }
+ is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "a", 1 [end]';
+}
+
+# Others
+
+our $x = 1;
+{
+ localize_delete '$x', 2, 0;
+ is $x, undef, 'localize "$x", anything, 0 [ok]';
+}
+is $x, 1, 'localize "$x", anything, 0 [end]';
+
+sub x { 1 };
+{
+ localize_delete '&x', 2, 0;
+ ok !exists(&x), 'localize "&x", anything, 0 [ok]';
+}
+is x(), 1, 'localize "&x", anything, 0 [end]';
+
+{
+ localize_delete *x, sub { }, 0;
+ is !exists(&x),  1, 'localize *x, anything, 0 [ok 1]';
+ is !defined($x), 1, 'localize *x, anything, 0 [ok 2]';
+}
+is x(), 1, 'localize *x, anything, 0 [end 1]';
+is $x,  1, 'localize *x, anything, 0 [end 2]';