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1 /***** BEGIN LICENSE BLOCK *****
2  * Version: CPL 1.0/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Common Public
5  * License Version 1.0 (the "License"); you may not use this file
6  * except in compliance with the License. You may obtain a copy of
7  * the License at http://www.eclipse.org/legal/cpl-v10.html
8  *
9  * Software distributed under the License is distributed on an "AS
10  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
11  * implied. See the License for the specific language governing
12  * rights and limitations under the License.
13  *
14  * Copyright (C) 2001 Chad Fowler <chadfowler@chadfowler.com>
15  * Copyright (C) 2001 Benoit Cerrina <b.cerrina@wanadoo.fr>
16  * Copyright (C) 2001 Alan Moore <alan_moore@gmx.net>
17  * Copyright (C) 2001-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
18  * Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
19  *
20  * Alternatively, the contents of this file may be used under the terms of
21  * either of the GNU General Public License Version 2 or later (the "GPL"),
22  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
23  * in which case the provisions of the GPL or the LGPL are applicable instead
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31  ***** END LICENSE BLOCK *****/
32 package org.jruby.test;
33
34 import java.util.ArrayList JavaDoc;
35
36 import junit.framework.TestCase;
37
38 import org.jruby.Ruby;
39 import org.jruby.RubyFixnum;
40 import org.jruby.RubyNil;
41 import org.jruby.runtime.builtin.IRubyObject;
42
43 /**
44 * @author chadfowler
45 */
46 public class TestRubyNil extends TestCase {
47     private Ruby runtime;
48     private IRubyObject rubyNil;
49
50     public TestRubyNil(String JavaDoc name) {
51         super(name);
52     }
53     
54     public void setUp() {
55         runtime = Ruby.getDefaultInstance();
56         rubyNil = runtime.getNil();
57     }
58     
59     public void testIsNil() {
60         assertTrue(rubyNil.isNil());
61     }
62
63     public void testIsFalseOrTrue() {
64         assertTrue(!rubyNil.isTrue());
65     }
66
67     public void testToI() {
68         assertEquals(RubyFixnum.zero(runtime), RubyNil.to_i(rubyNil));
69     }
70
71     public void testToS() {
72         assertEquals("", RubyNil.to_s(rubyNil).toString());
73     }
74
75     public void testToA() {
76         assertEquals(new ArrayList JavaDoc(), RubyNil.to_a(rubyNil).getList());
77     }
78
79     public void testInspect() {
80         assertEquals("nil", RubyNil.inspect(rubyNil).toString());
81     }
82
83     public void testType() {
84         assertEquals("NilClass", RubyNil.type(rubyNil).name().toString());
85     }
86
87     public void testOpAnd() {
88         assertTrue(RubyNil.op_and(rubyNil, rubyNil).isFalse());
89     }
90   
91     public void testOpOr() {
92         assertTrue(RubyNil.op_or(rubyNil, runtime.getTrue()).isTrue());
93         assertTrue(RubyNil.op_or(rubyNil, runtime.getFalse()).isFalse());
94     }
95
96     public void testOpXOr() {
97         assertTrue(RubyNil.op_xor(rubyNil, runtime.getTrue()).isTrue());
98         assertTrue(RubyNil.op_xor(rubyNil, runtime.getFalse()).isFalse());
99     }
100 }
101
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