BOO-999
[boo.git] / tests / Boo.Lang.Useful.Tests / Attributes / SingletonAttributeSerialization.boo
blob3662ff8cc6e6e507bd6b68f51c2c33f4b538c6c8
1 #region license
2 // Copyright (c) 2004, 2005 Rodrigo B. de Oliveira (rbo@acm.org)
3 // All rights reserved.
4 //
5 // Redistribution and use in source and binary forms, with or without modification,
6 // are permitted provided that the following conditions are met:
7 //
8 // * Redistributions of source code must retain the above copyright notice,
9 // this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above copyright notice,
11 // this list of conditions and the following disclaimer in the documentation
12 // and/or other materials provided with the distribution.
13 // * Neither the name of Rodrigo B. de Oliveira nor the names of its
14 // contributors may be used to endorse or promote products derived from this
15 // software without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
18 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
21 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
24 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #endregion
29 namespace Boo.Lang.Useful.Tests.Attributes
31 import NUnit.Framework
32 import System.IO
33 import Useful.Attributes
34 import System.Runtime.Serialization
35 import System.Runtime.Serialization.Formatters.Binary
37 [TestFixture]
38 class SingletonAttributeSerializationFixture:
39 """
40 @author Marcus Griep (neoeinstein+boo@gmail.com)
41 """
42 [Test]
43 def SingletonInvariant():
44 a1 = (SingletonObject.Instance, SingletonObject.Instance)
46 AssertSingletonInvariant(a1, a1)
48 [Test]
49 def SerializableSingleton():
50 a1 = (SingletonObject.Instance, SingletonObject.Instance)
52 a2 = SerializeAndDeserialize(a1)
54 AssertSingletonInvariant(a1, a2)
56 [Test]
57 [ExpectedException(typeof(Boo.Lang.Runtime.AssertionFailedException))]
58 def BadSingleton():
59 a1 = (BadSingletonObject.Instance, BadSingletonObject.Instance)
61 a2 = SerializeAndDeserialize(a1)
63 AssertSingletonInvariant(a1, a2)
68 private def SerializeAndDeserialize(a1 as (object)):
69 formatter = BinaryFormatter()
70 using stream = MemoryStream():
71 formatter.Serialize(stream, a1)
73 stream.Seek(0, SeekOrigin.Begin)
75 a2 = formatter.Deserialize(stream)
77 return a2
79 private def AssertSingletonInvariant([required] a1 as (object), [required] a2 as (object)):
80 assert object.ReferenceEquals(a1[0], a1[1])
81 assert object.ReferenceEquals(a2[0], a2[1])
82 assert object.ReferenceEquals(a1[0], a2[0])
85 [Singleton]
86 private class SingletonObject:
87 five = 5
88 def Five():
89 return five
92 private class BadSingletonObject:
93 five = 5
94 def Five():
95 return five
97 private def constructor():
98 pass
100 protected def constructor(info as SerializationInfo, context as StreamingContext):
101 pass
103 static Instance as BadSingletonObject:
104 get:
105 return Nested.instance
107 private final transient class Nested:
108 public static def constructor():
109 self.instance = BadSingletonObject()
111 private def constructor():
112 super()
114 public static final instance as BadSingletonObject