#region License
/*
* Copyright 2002-2005 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#endregion
#region Imports
using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using NUnit.Framework;
using Spring.Objects;
#endregion
namespace Spring.Util{
/// <summary>
/// Utilities for testing serializability of objects.
/// </summary>
/// <remarks>
/// Exposes static methods for use in other test cases.
/// </remarks>
/// <author>Rod Johnson</author>
/// <author>Simon White (.NET)</author>
[TestFixture]
public sealed class SerializationTestUtils
{
[Test]
[ExpectedException(typeof (SerializationException))]
public void WithNonSerializableObject()
{
TestObject o = new TestObject();
Assert.IsFalse(o is ISerializable);
Assert.IsFalse(IsSerializable(o));
TrySerialization(o);
}
[Test]
public void WithSerializableObject()
{
IPerson p = new SerializablePerson();
p.Age = 12;
Assert.IsTrue(p is ISerializable);
TrySerialization(p);
Assert.IsTrue(IsSerializable(p));
IPerson p2 = (IPerson) SerializeAndDeserialize(p);
Assert.IsTrue(p != p2);
Assert.AreEqual(12, p2.Age);
}
/// <summary>
/// Attempts to serialize the specified object to an in-memory stream.
/// </summary>
/// <param name="o">the object to serialize</param>
public static void TrySerialization(object o)
{
using (Stream stream = new MemoryStream())
{
BinaryFormatter bformatter = new BinaryFormatter();
bformatter.Serialize(stream, o);
}
}
/// <summary>
/// Tests whether the specified object is serializable.
/// </summary>
/// <param name="o">the object to test.</param>
/// <returns>true if the object is serializable, otherwise false.</returns>
public static bool IsSerializable(object o)
{
return o == null ? true : o.GetType().IsSerializable;
}
/// <summary>
/// Serializes the specified object to an in-memory stream, and returns
/// the result of deserializing the object stream.
/// </summary>
/// <param name="o">the object to use.</param>
/// <returns>the deserialized object.</returns>
public static object SerializeAndDeserialize(object o)
{
using (Stream stream = new MemoryStream())
{
BinaryFormatter bformatter = new BinaryFormatter();
bformatter.Serialize(stream, o);
stream.Flush();
stream.Seek(0, SeekOrigin.Begin);
object o2 = bformatter.Deserialize(stream);
return o2;
}
}
}
}
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