From fb013ae23029450f3874e9501942705294119d14 Mon Sep 17 00:00:00 2001
From: Father Chrysostomos <sprout@cpan.org>
Date: Sat, 30 Oct 2010 06:51:33 -0700
Subject: [PATCH] A plethora of isarev tests

---
 t/mro/isarev.t | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 69 insertions(+), 7 deletions(-)

diff --git a/t/mro/isarev.t b/t/mro/isarev.t
index f93c046..01b0017 100644
--- a/t/mro/isarev.t
+++ b/t/mro/isarev.t
@@ -10,14 +10,18 @@ BEGIN {
 
 use strict;
 use warnings;
-plan(tests => 3);
+plan(tests => 15);
 
 use mro;
 
 sub i {
- @_ = @_;
- $_[0] = "@{mro::get_isarev $_[0]}";
- $_[1] = "@{$_[1]}";
+ my @args = @_;
+ @_
+  = (
+     join(" ", sort @{mro::get_isarev $args[0]}),
+     join(" ", sort @args[1..$#args-1]),
+     pop @args
+    );
  goto &is;
 }
 
@@ -25,11 +29,69 @@ $::TODO = "[perl #75176] isarev leeks (and onions)";
 
 @Huskey::ISA = "Dog";
 @Dog::ISA = "Canid";
+@Wolf::ISA = "Canid";
 @Some::Brand::Name::ISA = "Dog::Bone";
 @Dog::Bone::ISA = "Treat";
+@Free::Time::ISA = "Treat";
 @MyCollar::ISA = "Dog::Collar::Leather";
 @Dog::Collar::Leather::ISA = "Collar";
+@Another::Collar::ISA = "Collar";
+*Tike:: = *Dog::;
 delete $::{"Dog::"};
-i Canid=>[], "deleting a stash elem removes isarev entries";
-i Treat=>[], "deleting a nested stash elem removes isarev entries";
-i Collar=>[], "deleting a doubly nested stash elem removes isarev entries";
+i Canid=>qw[ Wolf Tike ],
+ "deleting a stash elem updates isarev entries";
+i Treat=>qw[ Free::Time Tike::Bone ],
+ "deleting a nested stash elem updates isarev entries";
+i Collar=>qw[ Another::Collar Tike::Collar::Leather ],
+ "deleting a doubly nested stash elem updates isarev entries";
+
+@Goat::ISA = "Ungulate";
+@Goat::Dairy::ISA = "Goat";
+@Goat::Dairy::Toggenburg::ISA = "Goat::Dairy";
+@Weird::Thing::ISA = "g";
+*g:: = *Goat::;
+i Goat => qw[ Goat::Dairy Goat::Dairy::Toggenburg Weird::Thing ],
+ "isarev includes subclasses of aliases";
+delete $::{"g::"};
+i Ungulate => qw[ Goat Goat::Dairy Goat::Dairy::Toggenburg ],
+ "deleting an alias to a package updates isarev entries";
+i"Goat" => qw[ Goat::Dairy Goat::Dairy::Toggenburg ],
+ "deleting an alias to a package updates isarev entries of nested stashes";
+i"Goat::Dairy" => qw[ Goat::Dairy::Toggenburg ],
+ "deleting an stash alias updates isarev entries of doubly nested stashes";
+i g => qw [ Weird::Thing ],
+ "subclasses of the deleted alias become part of its isarev";
+
+@Caprine::ISA = "Hoofed::Mammal";
+@Caprine::Dairy::ISA = "Caprine";
+@Caprine::Dairy::Oberhasli::ISA = "Caprine::Dairy";
+@Whatever::ISA = "Caprine";
+*Caprid:: = *Caprine::;
+*Caprine:: = *Chevre::;
+i"Hoofed::Mammal" => qw[ Caprid ],
+ "replacing a stash updates isarev entries";
+i Caprine => qw[ Whatever ],
+ "replacing nested stashes updates isarev entries";
+
+@Disease::Eye::ISA = "Disease";
+@Disease::Eye::Infectious::ISA = "Disease::Eye";
+@Keratoconjunctivitis::ISA = "Disease::Ophthalmic::Infectious";
+*Disease::Ophthalmic:: = *Disease::Eye::;
+*Disease::Ophthalmic:: = *some_random_new_symbol::;
+i Disease => qw[ Disease::Eye ],
+ "replacing an alias of a stash updates isarev entries";
+i Caprine => qw[ Disease::Eye ],
+ "replacing an alias of a stash containing another updates isarev entries";
+i"some_random_new_symbol::Infectious" => qw[ Keratoconjunctivitis ],
+ "replacing an alias updates isarev of stashes nested in the replacement";
+
+# Globs ending with :: have autovivified stashes in them by default. We
+# want one without a stash.
+undef *Empty::;
+@Null::ISA = "Empty";
+@Null::Null::ISA = "Empty::Empty";
+{package Zilch::Empty} # autovivify it
+*Empty:: = *Zilch::;
+i Zilch => qw[ Null ], "assigning to an empty spot updates isarev";
+i"Zilch::Empty" => qw[ Null::Empty ],
+ "assigning to an empty spot updates isarev of nested packages";
-- 
1.8.3.1