* ext/psych/lib/psych/visitors/to_ruby.rb: Added ability to load array

  subclasses with ivars.
* ext/psych/lib/psych/visitors/yaml_tree.rb: Added ability to dump
  array subclasses with ivars.
* test/psych/test_array.rb: corresponding tests

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34328 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 28 insertions, 0 deletions

diff --git a/test/psych/test_array.rb b/test/psych/test_array.rb
index ec6a1aa147..9eedbb4fda 100644
--- a/test/psych/test_array.rb
+++ b/test/psych/test_array.rb
@@ -2,11 +2,39 @@ require 'psych/helper'
 
 module Psych
   class TestArray < TestCase
+    class X < Array
+    end
+
+    class Y < Array
+      attr_accessor :val
+    end
+
     def setup
       super
       @list = [{ :a => 'b' }, 'foo']
     end
 
+    def test_subclass
+      yaml = Psych.dump X.new
+      assert_match X.name, yaml
+
+      list = X.new
+      list << 1
+      assert_equal X, list.class
+      assert_equal 1, list.first
+    end
+
+    def test_subclass_with_attributes
+      y = Psych.load Psych.dump Y.new.tap {|y| y.val = 1}
+      assert_equal Y, y.class
+      assert_equal 1, y.val
+    end
+
+    def test_backwards_with_syck
+      x = Psych.load "--- !seq:#{X.name} []\n\n"
+      assert_equal X, x.class
+    end
+
     def test_self_referential
       @list << @list
       assert_cycle(@list)