1 files changed, 5 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/kernel_test.rb b/activesupport/test/core_ext/kernel_test.rb
index 904d56a87e..ede9b0a6aa 100644
--- a/activesupport/test/core_ext/kernel_test.rb
+++ b/activesupport/test/core_ext/kernel_test.rb
@@ -52,6 +52,11 @@ class KernelTest < Test::Unit::TestCase
     class << o; @x = 1; end
     assert_equal 1, o.class_eval { @x }
   end
+  
+  def test_capture
+    assert_equal 'STDERR', capture(:stderr) {$stderr.print 'STDERR'}
+    assert_equal 'STDOUT', capture(:stdout) {print 'STDOUT'}
+  end
 end
 
 class KernelSuppressTest < Test::Unit::TestCase