--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.test/src/com/oracle/truffle/ruby/test/language/PolymorphismTests.java	Mon Jan 06 17:12:09 2014 +0000
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package com.oracle.truffle.ruby.test.language;
+
+import org.junit.*;
+
+import com.oracle.truffle.ruby.test.*;
+
+/**
+ * Test characteristics of polymorphism.
+ */
+public class PolymorphismTests extends RubyTests {
+
+    /**
+     * Test that a polymorphic method that will specialize to double will then not treat integers as
+     * doubles.
+     */
+    @Test
+    public void testSimpleOperatorRedefinition() {
+        assertPrints("16.759999999999998\n16\n", //
+                        "def add(x, y)\n" + //
+                                        "    x + y\n" + //
+                                        "end\n" + //
+                                        "puts add(14.5, 2.26)\n" + //
+                                        "puts add(14, 2)\n");
+    }
+
+}