* ext/objspace/objspace.c (iow_size): return size of internal object

  for ObjectSpace.memsize_of().
* test/objspace/test_objspace.rb: add a test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
index 723e6e431e..eeb8ffa664 100644
--- a/test/objspace/test_objspace.rb
+++ b/test/objspace/test_objspace.rb
@@ -92,4 +92,14 @@ class TestObjSpace < Test::Unit::TestCase
     }
     assert_operator(max, :>=, 1_001, "1000 elems + Array class")
   end
+
+  def test_reachable_objects_size
+    ObjectSpace.each_object{|o|
+      ObjectSpace.reachable_objects_from(o).each{|reached_obj|
+        size = ObjectSpace.memsize_of(reached_obj)
+        assert_kind_of(Integer, size)
+        assert_operator(size, :>=, 0)
+      }
+    }
+  end
 end