XmlSerializableConstraint
XmlSerializableConstraint tests whether
an object is serializable in XML format.
using System;
using System.IO;
using System.Runtime.CompilerServices;
using System.Xml.Serialization;
namespace NUnit.Framework.Constraints
{
[NullableContext(1)]
[Nullable(0)]
public class XmlSerializableConstraint : Constraint
{
public override string Description => "XML serializable";
public override ConstraintResult ApplyTo<[Nullable(2)] TActual>(TActual actual)
{
if (actual == null)
throw new ArgumentNullException("actual");
MemoryStream memoryStream = new MemoryStream();
bool isSuccess = false;
try {
XmlSerializer xmlSerializer = new XmlSerializer(actual.GetType());
xmlSerializer.Serialize(memoryStream, actual);
memoryStream.Seek(0, SeekOrigin.Begin);
isSuccess = (xmlSerializer.Deserialize(memoryStream) != null);
} catch (NotSupportedException) {
} catch (InvalidOperationException) {
}
return new ConstraintResult(this, actual.GetType(), isSuccess);
}
protected override string GetStringRepresentation()
{
return "<xmlserializable>";
}
public XmlSerializableConstraint()
: base(Array.Empty<object>())
{
}
}
}