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comparison graal/com.oracle.truffle.ruby.test/src/com/oracle/truffle/ruby/test/language/MultipleAssignmentTests.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 multiple assignment, which is sort of like pattern matching for arrays. The arrays can be
18 * implicit on the RHS.
19 */
20 public class MultipleAssignmentTests extends RubyTests {
21
22 @Test
23 public void testToLocal() {
24 assertPrints("1\n2\n", "x, y = [1, 2]; puts x, y");
25 assertPrints("1\n2\n", "x, y = 1, 2; puts x, y");
26 assertPrints("1\n2\n", "x = [1, 2]; y, z = x; puts y, z");
27 }
28
29 @Test
30 public void testToArrayIndex() {
31 assertPrints("1\n2\n", "x = []; x[0], x[1] = 1, 2; puts x");
32 }
33
34 @Test
35 public void testSwap() {
36 assertPrints("2\n1\n", "a = [1]; b = [2]; a[0], b[0] = b[0], a[0]; puts a, b");
37 }
38
39 @Test
40 public void testProducesArray() {
41 assertPrints("1\n2\n", "puts((a, b = 1, 2))");
42 }
43
44 @Test
45 public void testWithSplat() {
46 assertPrints("1\n[2, 3]\n", "a, *b = [1, 2, 3]; puts a; puts b.to_s");
47 }
48
49 @Test
50 public void testWithSplatEmpty() {
51 assertPrints("1\n[]\n", "a, *b = [1]; puts a.to_s; puts b.to_s");
52 }
53
54 @Test
55 public void testWithSingleValueRHS() {
56 assertPrints("14\n\n\n", "a, b, c = 14; puts a; puts b; puts c");
57 assertPrints("\n\n\n", "a, b, c = nil; puts a; puts b; puts c");
58 }
59
60 @Test
61 public void testWithSingleSplatLHSAndSingleValueRHS() {
62 assertPrints("[14]\n", "a = *14; puts a.to_s");
63 }
64
65 }