1 files changed, 17 insertions, 0 deletions
diff --git a/test/psych/test_class.rb b/test/psych/test_class.rb
index 8fd4ad0952..156f2fb0ad 100644
--- a/test/psych/test_class.rb
+++ b/test/psych/test_class.rb
@@ -2,12 +2,21 @@ require 'psych/helper'
 
 module Psych
   class TestClass < TestCase
+    module Foo
+    end
+
     def test_cycle_anonymous_class
       assert_raises(::TypeError) do
         assert_cycle(Class.new)
       end
     end
 
+    def test_cycle_anonymous_module
+      assert_raises(::TypeError) do
+        assert_cycle(Module.new)
+      end
+    end
+
     def test_cycle
       assert_cycle(TestClass)
     end
@@ -15,5 +24,13 @@ module Psych
     def test_dump
       Psych.dump TestClass
     end
+
+    def test_cycle_module
+      assert_cycle(Foo)
+    end
+
+    def test_dump_module
+      Psych.dump Foo
+    end
   end
 end