1 // ***********************************************************************
2 // Copyright (c) 2008 Charlie Poole
4 // Permission is hereby granted, free of charge, to any person obtaining
5 // a copy of this software and associated documentation files (the
6 // "Software"), to deal in the Software without restriction, including
7 // without limitation the rights to use, copy, modify, merge, publish,
8 // distribute, sublicense, and/or sell copies of the Software, and to
9 // permit persons to whom the Software is furnished to do so, subject to
10 // the following conditions:
12 // The above copyright notice and this permission notice shall be
13 // included in all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 // ***********************************************************************
25 #define NUNIT_FRAMEWORK
29 #if !SILVERLIGHT && !PORTABLE
32 using System.Xml.Serialization;
34 namespace NUnit.Framework.Constraints
37 /// XmlSerializableConstraint tests whether
38 /// an object is serializable in xml format.
40 public class XmlSerializableConstraint : Constraint
42 private XmlSerializer serializer;
45 /// Gets text describing a constraint
47 public override string Description
49 get { return "xml serializable"; }
53 /// Test whether the constraint is satisfied by a given value
55 /// <param name="actual">The value to be tested</param>
56 /// <returns>True for success, false for failure</returns>
57 public override ConstraintResult ApplyTo<TActual>(TActual actual)
60 throw new ArgumentNullException("actual");
62 MemoryStream stream = new MemoryStream();
64 bool succeeded = false;
68 serializer = new XmlSerializer(actual.GetType());
70 serializer.Serialize(stream, actual);
72 stream.Seek(0, SeekOrigin.Begin);
74 succeeded = serializer.Deserialize(stream) != null;
76 catch (NotSupportedException)
78 // Ignore and return failure
80 catch (InvalidOperationException)
82 // Ignore and return failure
85 return new ConstraintResult(this, actual.GetType(), succeeded);
89 /// Returns the string representation of this constraint
91 protected override string GetStringRepresentation()
93 return "<xmlserializable>";