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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Xml.Serialization;
namespace Microsoft.TestCommon
{
/// <summary>
/// MSTest utility for testing code operating against a stream.
/// </summary>
public class SerializerAssert
{
private static SerializerAssert singleton = new SerializerAssert();
public static SerializerAssert Singleton { get { return singleton; } }
/// <summary>
/// Creates a <see cref="Stream"/>, serializes <paramref name="objectInstance"/> to it using
/// <see cref="XmlSerializer"/>, rewinds the stream and calls <see cref="codeThatChecks"/>.
/// </summary>
/// <param name="type">The type to serialize. It cannot be <c>null</c>.</param>
/// <param name="objectInstance">The value to serialize.</param>
/// <param name="codeThatChecks">Code to check the contents of the stream.</param>
public void UsingXmlSerializer(Type type, object objectInstance, Action<Stream> codeThatChecks)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (codeThatChecks == null)
{
throw new ArgumentNullException("codeThatChecks");
}
XmlSerializer serializer = new XmlSerializer(type);
using (MemoryStream stream = new MemoryStream())
{
serializer.Serialize(stream, objectInstance);
stream.Flush();
stream.Seek(0L, SeekOrigin.Begin);
codeThatChecks(stream);
}
}
/// <summary>
/// Creates a <see cref="Stream"/>, serializes <paramref name="objectInstance"/> to it using
/// <see cref="XmlSerializer"/>, rewinds the stream and calls <see cref="codeThatChecks"/>.
/// </summary>
/// <typeparam name="T">The type to serialize.</typeparam>
/// <param name="objectInstance">The value to serialize.</param>
/// <param name="codeThatChecks">Code to check the contents of the stream.</param>
public void UsingXmlSerializer<T>(T objectInstance, Action<Stream> codeThatChecks)
{
UsingXmlSerializer(typeof(T), objectInstance, codeThatChecks);
}
/// <summary>
/// Creates a <see cref="Stream"/>, serializes <paramref name="objectInstance"/> to it using
/// <see cref="DataContractSerializer"/>, rewinds the stream and calls <see cref="codeThatChecks"/>.
/// </summary>
/// <param name="type">The type to serialize. It cannot be <c>null</c>.</param>
/// <param name="objectInstance">The value to serialize.</param>
/// <param name="codeThatChecks">Code to check the contents of the stream.</param>
public void UsingDataContractSerializer(Type type, object objectInstance, Action<Stream> codeThatChecks)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (codeThatChecks == null)
{
throw new ArgumentNullException("codeThatChecks");
}
DataContractSerializer serializer = new DataContractSerializer(type);
using (MemoryStream stream = new MemoryStream())
{
serializer.WriteObject(stream, objectInstance);
stream.Flush();
stream.Seek(0L, SeekOrigin.Begin);
codeThatChecks(stream);
}
}
/// <summary>
/// Creates a <see cref="Stream"/>, serializes <paramref name="objectInstance"/> to it using
/// <see cref="DataContractSerializer"/>, rewinds the stream and calls <see cref="codeThatChecks"/>.
/// </summary>
/// <typeparam name="T">The type to serialize.</typeparam>
/// <param name="objectInstance">The value to serialize.</param>
/// <param name="codeThatChecks">Code to check the contents of the stream.</param>
public void UsingDataContractSerializer<T>(T objectInstance, Action<Stream> codeThatChecks)
{
UsingDataContractSerializer(typeof(T), objectInstance, codeThatChecks);
}
/// <summary>
/// Creates a <see cref="Stream"/>, serializes <paramref name="objectInstance"/> to it using
/// <see cref="DataContractJsonSerializer"/>, rewinds the stream and calls <see cref="codeThatChecks"/>.
/// </summary>
/// <param name="type">The type to serialize. It cannot be <c>null</c>.</param>
/// <param name="objectInstance">The value to serialize.</param>
/// <param name="codeThatChecks">Code to check the contents of the stream.</param>
public static void UsingDataContractJsonSerializer(Type type, object objectInstance, Action<Stream> codeThatChecks)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (codeThatChecks == null)
{
throw new ArgumentNullException("codeThatChecks");
}
DataContractJsonSerializer serializer = new DataContractJsonSerializer(type);
using (MemoryStream stream = new MemoryStream())
{
serializer.WriteObject(stream, objectInstance);
stream.Flush();
stream.Seek(0L, SeekOrigin.Begin);
codeThatChecks(stream);
}
}
/// <summary>
/// Creates a <see cref="Stream"/>, serializes <paramref name="objectInstance"/> to it using
/// <see cref="DataContractJsonSerializer"/>, rewinds the stream and calls <see cref="codeThatChecks"/>.
/// </summary>
/// <typeparam name="T">The type to serialize.</typeparam>
/// <param name="objectInstance">The value to serialize.</param>
/// <param name="codeThatChecks">Code to check the contents of the stream.</param>
public void UsingDataContractJsonSerializer<T>(T objectInstance, Action<Stream> codeThatChecks)
{
UsingDataContractJsonSerializer(typeof(T), objectInstance, codeThatChecks);
}
}
}
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