github
diff --git a/‎bootstraptest/test_ujit.rb
Lines changed: 30 additions & 0 deletions b/‎bootstraptest/test_ujit.rb
Lines changed: 30 additions & 0 deletions
diff --git a/‎test/ruby/test_microjit.rb
Lines changed: 0 additions & 27 deletions b/‎test/ruby/test_microjit.rb
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+# Method redefinition (code invalidation) test
+assert_equal '1', %q{
+    def ret1
+        return 1
+    end
+
+    klass = Class.new do
+        def alias_then_hash(klass, method_to_redefine)
+            # Redefine the method to be ret1
+            klass.alias_method(method_to_redefine, :ret1)
+            hash
+        end
+    end
+
+    instance = klass.new
+
+    i = 0
+    while i < 12
+        if i < 11
+            # Redefine the bar method
+            instance.alias_then_hash(klass, :bar)
+        else
+            # Redefine the hash method to be ret1
+            retval = instance.alias_then_hash(klass, :hash)
+        end
+        i += 1
+    end
+
+    retval
+}