1 files changed, 8 insertions, 0 deletions
diff --git a/test/ruby/test_class.rb b/test/ruby/test_class.rb
index 3508061840..efee102835 100644
--- a/test/ruby/test_class.rb
+++ b/test/ruby/test_class.rb
@@ -522,4 +522,12 @@ class TestClass < Test::Unit::TestCase
       assert_equal(m, m.xyzzy, "Bug #10871")
     }
   end
+
+  def test_redefinition_mismatch
+    m = Module.new
+    m.module_eval "A = 1"
+    assert_raise_with_message(TypeError, /is not a class/) {
+      m.module_eval "class A; end"
+    }
+  end
 end