more tests

diff --git a/lib/MRO/Compat.pm b/lib/MRO/Compat.pm
index 496dba0..2ae0a45 100644 (file)
--- a/lib/MRO/Compat.pm
+++ b/lib/MRO/Compat.pm
@@ -3,6 +3,8 @@ use strict;
 use warnings;
 require 5.006_000;
 
+# Keep this < 1.00, so people can tell the fake
+#  mro.pm from the real one
 our $VERSION = '0.01';
 
 BEGIN {
@@ -20,6 +22,8 @@ BEGIN {
         *mro::method_changed_in = \&__method_changed_in;
         *mro::invalidate_all_method_caches
                                 = \&__invalidate_all_method_caches;
+        $mro::VERSION = $VERSION;
+        $INC{'mro.pm'} = 'Faked by MRO::Compat';
     }
 
     # Provide no-op Class::C3::.*initialize() funcs for 5.9.5+
@@ -155,8 +159,7 @@ sub __set_mro {
         die q{Invalid mro type "$type"};
     }
 
-    # In the dfs case, check whether we need to
-    #  undo C3
+    # In the dfs case, check whether we need to undo C3
     if(defined $Class::C3::MRO{$classname}) {
         Class::C3::_remove_method_dispatch_table($classname);
     }

diff --git a/t/20mros.t b/t/20mros.t
new file mode 100644 (file)
index 0000000..702b19d
--- /dev/null
+++ b/t/20mros.t
@@ -0,0 +1,62 @@
+
+use strict;
+use warnings;
+
+use Test::More tests => 8;
+
+BEGIN {
+    use_ok('MRO::Compat');
+}
+
+{
+    package AAA; our @ISA = qw//; use mro 'dfs';
+    package BBB; our @ISA = qw/AAA/; use mro 'dfs';
+    package CCC; our @ISA = qw/AAA/; use mro 'dfs';
+    package DDD; our @ISA = qw/AAA/; use mro 'dfs';
+    package EEE; our @ISA = qw/BBB CCC DDD/; use mro 'dfs';
+    package FFF; our @ISA = qw/EEE DDD/; use mro 'dfs';
+    package GGG; our @ISA = qw/FFF/; use mro 'dfs';
+
+    package AAA3; our @ISA = qw//;
+    sub testsub { return $_[0] . '_first_in_dfs' }
+    package BBB3; our @ISA = qw/AAA3/;
+    package CCC3; our @ISA = qw/AAA3/;
+    sub testsub { return $_[0] . '_first_in_c3' }
+    package DDD3; our @ISA = qw/AAA3/;
+    package EEE3; our @ISA = qw/BBB3 CCC3 DDD3/;
+    package FFF3; our @ISA = qw/EEE3 DDD3/; use mro 'c3';
+    package GGG3; our @ISA = qw/FFF3/; use mro 'c3';
+}
+
+is_deeply(
+  mro::get_linear_isa('GGG'),
+  [ 'GGG', 'FFF', 'EEE', 'BBB', 'AAA', 'CCC', 'DDD' ],
+  "get_linear_isa for GGG",
+);
+
+is_deeply(
+  mro::get_linear_isa('GGG3'),
+  [ 'GGG3', 'FFF3', 'EEE3', 'BBB3', 'CCC3', 'DDD3', 'AAA3' ],
+  "get_linear_isa for GGG3",
+);
+
+is(FFF3->testsub(), 'FFF3_first_in_dfs', 'dfs resolution pre-init');
+
+Class::C3::initialize();
+
+is(FFF3->testsub(), 'FFF3_first_in_c3', 'c3 resolution post-init');
+
+mro::set_mro('FFF3', 'dfs');
+is_deeply(
+  mro::get_linear_isa('FFF3'),
+  [ 'FFF3', 'EEE3', 'BBB3', 'AAA3', 'CCC3', 'DDD3' ],
+  "get_linear_isa for FFF3 (dfs)",
+);
+
+is(FFF3->testsub(), 'FFF3_first_in_dfs', 'dfs resolution post- setmro dfs');
+
+is_deeply(
+  mro::get_linear_isa('GGG3'),
+  [ 'GGG3', 'FFF3', 'EEE3', 'BBB3', 'CCC3', 'DDD3', 'AAA3' ],
+  "get_linear_isa for GGG3 (still c3)",
+);