1 files changed, 40 insertions, 0 deletions
diff --git a/ruby_1_8_5/test/ruby/test_alias.rb b/ruby_1_8_5/test/ruby/test_alias.rb
new file mode 100644
index 0000000000..83f897fb00
--- /dev/null
+++ b/ruby_1_8_5/test/ruby/test_alias.rb
@@ -0,0 +1,40 @@
+require 'test/unit'
+
+class TestAlias < Test::Unit::TestCase
+  class Alias0
+    def foo; "foo" end
+  end
+  class Alias1<Alias0
+    alias bar foo
+    def foo; "foo+" + super end
+  end
+  class Alias2<Alias1
+    alias baz foo
+    undef foo
+  end
+  class Alias3<Alias2
+    def foo
+      defined? super
+    end
+    def bar
+      defined? super
+    end
+    def quux
+      defined? super
+    end
+  end
+
+  def test_alias
+    x = Alias2.new
+    assert_equal("foo", x.bar)
+    assert_equal("foo+foo", x.baz)
+
+    # test_check for cache
+    assert_equal("foo+foo", x.baz)
+
+    x = Alias3.new
+    assert(!x.foo)
+    assert(x.bar)
+    assert(!x.quux)
+  end
+end