make inlining a bit more easily extensible

[gitmo/Class-MOP.git] / t / 002_class_precedence_list.t

diff --git a/t/002_class_precedence_list.t b/t/002_class_precedence_list.t
index cc99286..7bc1fd4 100644 (file)
--- a/t/002_class_precedence_list.t
+++ b/t/002_class_precedence_list.t
@@ -1,14 +1,10 @@
-#!/usr/bin/perl
-
 use strict;
 use warnings;
 
-use Test::More no_plan => 1;
+use Test::More;
 
-BEGIN {
-    use_ok('Class::MOP');   
-    use_ok('Class::MOP::Class');        
-}
+use Class::MOP;
+use Class::MOP::Class;
 
 =pod
 
@@ -22,35 +18,53 @@ B   C
 
 {
     package My::A;
+    use metaclass;
     package My::B;
     our @ISA = ('My::A');
     package My::C;
-    our @ISA = ('My::A');    
-    package My::D;       
-    our @ISA = ('My::B', 'My::C');         
+    our @ISA = ('My::A');
+    package My::D;
+    our @ISA = ('My::B', 'My::C');
 }
 
 is_deeply(
-    [ My::D->meta->class_precedence_list ], 
-    [ 'My::D', 'My::B', 'My::A', 'My::C', 'My::A' ], 
+    [ My::D->meta->class_precedence_list ],
+    [ 'My::D', 'My::B', 'My::A', 'My::C', 'My::A' ],
     '... My::D->meta->class_precedence_list == (D B A C A)');
 
+is_deeply(
+    [ My::D->meta->linearized_isa ],
+    [ 'My::D', 'My::B', 'My::A', 'My::C' ],
+    '... My::D->meta->linearized_isa == (D B A C)');
+
 =pod
 
-+-- B <-+
-|       |
-+-> A --+
+ A <-+
+ |   |
+ B   |
+ |   |
+ C --+
 
 =cut
 
-{
-    package My::2::A;
-    our @ISA = ('My::2::B');
-    package My::2::B;
-    our @ISA = ('My::2::A');       
-}
+# 5.9.5+ dies at the moment of
+# recursive @ISA definition, not later when
+# you try to use the @ISAs.
+eval {
+    {
+        package My::2::A;
+        use metaclass;
+        our @ISA = ('My::2::C');
+
+        package My::2::B;
+        our @ISA = ('My::2::A');
+
+        package My::2::C;
+        our @ISA = ('My::2::B');
+    }
 
-eval { My::2::B->meta->class_precedence_list };
+    My::2::B->meta->class_precedence_list
+};
 ok($@, '... recursive inheritance breaks correctly :)');
 
 =pod
@@ -66,15 +80,81 @@ ok($@, '... recursive inheritance breaks correctly :)');
 
 {
     package My::3::A;
+    use metaclass;
     package My::3::B;
     our @ISA = ('My::3::A');
     package My::3::C;
-    our @ISA = ('My::3::A', 'My::3::B');    
-    package My::3::D;       
-    our @ISA = ('My::3::B', 'My::3::C');         
+    our @ISA = ('My::3::A', 'My::3::B');
+    package My::3::D;
+    our @ISA = ('My::3::B', 'My::3::C');
 }
 
 is_deeply(
-    [ My::3::D->meta->class_precedence_list ], 
-    [ 'My::3::D', 'My::3::B', 'My::3::A', 'My::3::C', 'My::3::A', 'My::3::B', 'My::3::A' ], 
+    [ My::3::D->meta->class_precedence_list ],
+    [ 'My::3::D', 'My::3::B', 'My::3::A', 'My::3::C', 'My::3::A', 'My::3::B', 'My::3::A' ],
     '... My::3::D->meta->class_precedence_list == (D B A C A B A)');
+
+is_deeply(
+    [ My::3::D->meta->linearized_isa ],
+    [ 'My::3::D', 'My::3::B', 'My::3::A', 'My::3::C' ],
+    '... My::3::D->meta->linearized_isa == (D B A C B)');
+
+=pod
+
+Test all the class_precedence_lists 
+using Perl's own dispatcher to check 
+against.
+
+=cut
+
+my @CLASS_PRECEDENCE_LIST;
+
+{
+    package Foo;
+    use metaclass;
+
+    sub CPL { push @CLASS_PRECEDENCE_LIST => 'Foo' }
+
+    package Bar;
+    our @ISA = ('Foo');
+
+    sub CPL {
+        push @CLASS_PRECEDENCE_LIST => 'Bar';
+        $_[0]->SUPER::CPL();
+    }
+
+    package Baz;
+    use metaclass;
+    our @ISA = ('Bar');
+
+    sub CPL {
+        push @CLASS_PRECEDENCE_LIST => 'Baz';
+        $_[0]->SUPER::CPL();
+    }
+
+    package Foo::Bar;
+    our @ISA = ('Baz');
+
+    sub CPL {
+        push @CLASS_PRECEDENCE_LIST => 'Foo::Bar';
+        $_[0]->SUPER::CPL();
+    }
+
+    package Foo::Bar::Baz;
+    our @ISA = ('Foo::Bar');
+
+    sub CPL {
+        push @CLASS_PRECEDENCE_LIST => 'Foo::Bar::Baz';
+        $_[0]->SUPER::CPL();
+    }
+
+}
+
+Foo::Bar::Baz->CPL();
+
+is_deeply(
+    [ Foo::Bar::Baz->meta->class_precedence_list ],
+    [ @CLASS_PRECEDENCE_LIST ],
+    '... Foo::Bar::Baz->meta->class_precedence_list == @CLASS_PRECEDENCE_LIST');
+
+done_testing;