--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.test/src/com/oracle/truffle/ruby/test/language/AndTests.java	Mon Jan 06 17:12:09 2014 +0000
@@ -0,0 +1,46 @@
+/*
+ * 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 {@code and} expressions, which unusually for Ruby are not methods. This is because with
+ * Ruby's eager evaluation there would be no way to implement the short circuit semantics.
+ */
+public class AndTests extends RubyTests {
+
+    @Test
+    public void testImmediate() {
+        assertPrints("false\n", "puts false && false");
+        assertPrints("false\n", "puts true && false");
+        assertPrints("false\n", "puts false && true");
+        assertPrints("true\n", "puts true && true");
+        assertPrints("false\n", "puts (false and false)");
+        assertPrints("false\n", "puts (true and false)");
+        assertPrints("false\n", "puts (false and true)");
+        assertPrints("true\n", "puts (true and true)");
+    }
+
+    @Test
+    public void testShortCircuits() {
+        assertPrints("false\nfalse\nfalse\n", "x = y = false; puts (x = false) && (y = false); puts x, y");
+        assertPrints("false\ntrue\nfalse\n", "x = y = false; puts (x = true) && (y = false); puts x, y");
+        assertPrints("false\nfalse\nfalse\n", "x = y = false; puts (x = false) && (y = true); puts x, y");
+        assertPrints("true\ntrue\ntrue\n", "x = y = false; puts (x = true) && (y = true); puts x, y");
+        assertPrints("false\nfalse\nfalse\n", "x = y = false; puts ((x = false) and (y = false)); puts x, y");
+        assertPrints("false\ntrue\nfalse\n", "x = y = false; puts ((x = true) and (y = false)); puts x, y");
+        assertPrints("false\nfalse\nfalse\n", "x = y = false; puts ((x = false) and (y = true)); puts x, y");
+        assertPrints("true\ntrue\ntrue\n", "x = y = false; puts ((x = true) and (y = true)); puts x, y");
+    }
+
+}