1 files changed, 80 insertions, 0 deletions
diff --git a/test/ruby/test_method.rb b/test/ruby/test_method.rb
index bb506f1258..0f0807af9d 100644
--- a/test/ruby/test_method.rb
+++ b/test/ruby/test_method.rb
@@ -1064,6 +1064,86 @@ class TestMethod < Test::Unit::TestCase
       '[ruby-core:85231] [Bug #14421]'
   end
 
+  def test_super_method_alias
+    c0 = Class.new do
+      def m1
+        [:C0_m1]
+      end
+      def m2
+        [:C0_m2]
+      end
+    end
+
+    c1 = Class.new(c0) do
+      def m1
+        [:C1_m1] + super
+      end
+      alias m2 m1
+    end
+
+    c2 = Class.new(c1) do
+      def m2
+        [:C2_m2] + super
+      end
+    end
+    o1 = c2.new
+    assert_equal([:C2_m2, :C1_m1, :C0_m1], o1.m2)
+
+    m = o1.method(:m2)
+    assert_equal([:C2_m2, :C1_m1, :C0_m1], m.call)
+
+    m = m.super_method
+    assert_equal([:C1_m1, :C0_m1], m.call)
+
+    m = m.super_method
+    assert_equal([:C0_m1], m.call)
+
+    assert_nil(m.super_method)
+  end
+
+  def test_super_method_alias_to_prepended_module
+    m = Module.new do
+      def m1
+        [:P_m1] + super
+      end
+
+      def m2
+        [:P_m2] + super
+      end
+    end
+
+    c0 = Class.new do
+      def m1
+        [:C0_m1]
+      end
+    end
+
+    c1 = Class.new(c0) do
+      def m1
+        [:C1_m1] + super
+      end
+      prepend m
+      alias m2 m1
+    end
+
+    o1 = c1.new
+    assert_equal([:P_m2, :P_m1, :C1_m1, :C0_m1], o1.m2)
+
+    m = o1.method(:m2)
+    assert_equal([:P_m2, :P_m1, :C1_m1, :C0_m1], m.call)
+
+    m = m.super_method
+    assert_equal([:P_m1, :C1_m1, :C0_m1], m.call)
+
+    m = m.super_method
+    assert_equal([:C1_m1, :C0_m1], m.call)
+
+    m = m.super_method
+    assert_equal([:C0_m1], m.call)
+
+    assert_nil(m.super_method)
+  end
+
   def rest_parameter(*rest)
     rest
   end