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comparison graal/com.oracle.truffle.ruby.test/src/com/oracle/truffle/ruby/test/language/AndTests.java @ 13514:0fbee3eb71f0

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Ruby: import project.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 06 Jan 2014 17:12:09 +0000
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13513:64a23ce736a0 13514:0fbee3eb71f0
1 /*
2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
4 * redistribute it and/or modify it under the terms of the:
5 *
6 * Eclipse Public License version 1.0
7 * GNU General Public License version 2
8 * GNU Lesser General Public License version 2.1
9 */
10 package com.oracle.truffle.ruby.test.language;
11
12 import org.junit.*;
13
14 import com.oracle.truffle.ruby.test.*;
15
16 /**
17 * Test {@code and} expressions, which unusually for Ruby are not methods. This is because with
18 * Ruby's eager evaluation there would be no way to implement the short circuit semantics.
19 */
20 public class AndTests extends RubyTests {
21
22 @Test
23 public void testImmediate() {
24 assertPrints("false\n", "puts false && false");
25 assertPrints("false\n", "puts true && false");
26 assertPrints("false\n", "puts false && true");
27 assertPrints("true\n", "puts true && true");
28 assertPrints("false\n", "puts (false and false)");
29 assertPrints("false\n", "puts (true and false)");
30 assertPrints("false\n", "puts (false and true)");
31 assertPrints("true\n", "puts (true and true)");
32 }
33
34 @Test
35 public void testShortCircuits() {
36 assertPrints("false\nfalse\nfalse\n", "x = y = false; puts (x = false) && (y = false); puts x, y");
37 assertPrints("false\ntrue\nfalse\n", "x = y = false; puts (x = true) && (y = false); puts x, y");
38 assertPrints("false\nfalse\nfalse\n", "x = y = false; puts (x = false) && (y = true); puts x, y");
39 assertPrints("true\ntrue\ntrue\n", "x = y = false; puts (x = true) && (y = true); puts x, y");
40 assertPrints("false\nfalse\nfalse\n", "x = y = false; puts ((x = false) and (y = false)); puts x, y");
41 assertPrints("false\ntrue\nfalse\n", "x = y = false; puts ((x = true) and (y = false)); puts x, y");
42 assertPrints("false\nfalse\nfalse\n", "x = y = false; puts ((x = false) and (y = true)); puts x, y");
43 assertPrints("true\ntrue\ntrue\n", "x = y = false; puts ((x = true) and (y = true)); puts x, y");
44 }
45
46 }