1 files changed, 11 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/kernel_test.rb b/activesupport/test/core_ext/kernel_test.rb
index 1dfc283268..c22af89918 100644
--- a/activesupport/test/core_ext/kernel_test.rb
+++ b/activesupport/test/core_ext/kernel_test.rb
@@ -41,6 +41,17 @@ class KernelTest < Test::Unit::TestCase
   def test_silence_stderr_with_return_value
     assert_equal 1, silence_stderr { 1 }
   end
+
+  def test_singleton_class
+    o = Object.new
+    assert_equal class << o; self end, o.singleton_class
+  end
+  
+  def test_class_eval
+    o = Object.new
+    class << o; @x = 1; end
+    assert_equal 1, o.class_eval { @x }
+  end
 end
 
 class KernelSupressTest < Test::Unit::TestCase