1 files changed, 14 insertions, 0 deletions
diff --git a/test/rdoc/xref_data.rb b/test/rdoc/xref_data.rb
index d002b422f9..aa9faaecd9 100644
--- a/test/rdoc/xref_data.rb
+++ b/test/rdoc/xref_data.rb
@@ -20,6 +20,8 @@ class C1
   def m foo
   end
 
+  def +
+  end
 end
 
 class C2
@@ -101,6 +103,18 @@ class C8
   end
 end
 
+class C9
+  class A
+    def foo() end
+    def self.bar() end
+  end
+
+  class B < A
+    def self.foo() end
+    def bar() end
+  end
+end
+
 module M1
   def m
   end