Newtonsoft.Json.Tests\Serialization\SerializationEventAttributeTests.cs

#region License

// Copyright (c) 2007 James Newton-King

//

// Permission is hereby granted, free of charge, to any person

// obtaining a copy of this software and associated documentation

// files (the "Software"), to deal in the Software without

// restriction, including without limitation the rights to use,

// copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the

// Software is furnished to do so, subject to the following

// conditions:

//

// The above copyright notice and this permission notice shall be

// included in all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

// OTHER DEALINGS IN THE SOFTWARE.

#endregion

#if !PocketPC && !NET20

using System;

using System.IO;

using System.Linq;

using System.Reflection;

using System.Runtime.Serialization;

using System.Text;

using Newtonsoft.Json.Tests;

using Newtonsoft.Json.Tests.TestObjects;

using NUnit.Framework;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

namespace Newtonsoft.Json.Tests.Serialization

{

  public class SerializationEventAttributeTests : TestFixtureBase

  {

    [Test]

    public void ObjectEvents()

    {

      SerializationEventTestObject obj = new SerializationEventTestObject();

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("Hello World!", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      Assert.AreEqual(null, obj.Member5);

      string json = JsonConvert.SerializeObject(obj, Formatting.Indented);

      Assert.AreEqual(@"{

  ""Member1"": 11,

  ""Member2"": ""This value went into the data file during serialization."",

  ""Member4"": null

}", json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("This value was reset after serialization.", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      Assert.AreEqual("Error message for member Member6 = Error getting value from 'Member6' on 'Newtonsoft.Json.Tests.TestObjects.SerializationEventTestObject'.", obj.Member5);

      JObject o = JObject.Parse(@"{

  ""Member1"": 11,

  ""Member2"": ""This value went into the data file during serialization."",

  ""Member4"": null

}");

      o["Member6"] = "Dummy text for error";

      obj = JsonConvert.DeserializeObject<SerializationEventTestObject>(o.ToString());

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("This value went into the data file during serialization.", obj.Member2);

      Assert.AreEqual("This value was set during deserialization", obj.Member3);

      Assert.AreEqual("This value was set after deserialization.", obj.Member4);

      Assert.AreEqual("Error message for member Member6 = Error setting value to 'Member6' on 'Newtonsoft.Json.Tests.TestObjects.SerializationEventTestObject'.", obj.Member5);

    }

    [Test]

    public void ObjectWithConstructorEvents()

    {

      SerializationEventTestObjectWithConstructor obj = new SerializationEventTestObjectWithConstructor(11, "Hello World!", null);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("Hello World!", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      string json = JsonConvert.SerializeObject(obj, Formatting.Indented);

      Assert.AreEqual(@"{

  ""Member1"": 11,

  ""Member2"": ""This value went into the data file during serialization."",

  ""Member4"": null

}", json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("This value was reset after serialization.", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      obj = JsonConvert.DeserializeObject<SerializationEventTestObjectWithConstructor>(json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("This value went into the data file during serialization.", obj.Member2);

      Assert.AreEqual("This value was set during deserialization", obj.Member3);

      Assert.AreEqual("This value was set after deserialization.", obj.Member4);

    }

    [Test]

    public void ListEvents()

    {

      SerializationEventTestList obj = new SerializationEventTestList

        {

          1.1m,

          2.222222222m,

          int.MaxValue,

          Convert.ToDecimal(Math.PI)

        };

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("Hello World!", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      string json = JsonConvert.SerializeObject(obj, Formatting.Indented);

      Assert.AreEqual(@"[

  -1.0,

  1.1,

  2.222222222,

  2147483647.0,

  3.14159265358979

]", json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("This value was reset after serialization.", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      obj = JsonConvert.DeserializeObject<SerializationEventTestList>(json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("Hello World!", obj.Member2);

      Assert.AreEqual("This value was set during deserialization", obj.Member3);

      Assert.AreEqual("This value was set after deserialization.", obj.Member4);

    }

    [Test]

    public void DictionaryEvents()

    {

      SerializationEventTestDictionary obj = new SerializationEventTestDictionary

        {

          { 1.1m, "first" },

          { 2.222222222m, "second" },

          { int.MaxValue, "third" },

          { Convert.ToDecimal(Math.PI), "fourth" }

        };

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("Hello World!", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      string json = JsonConvert.SerializeObject(obj, Formatting.Indented);

      Assert.AreEqual(@"{

  ""1.1"": ""first"",

  ""2.222222222"": ""second"",

  ""2147483647"": ""third"",

  ""3.14159265358979"": ""fourth"",

  ""79228162514264337593543950335"": ""Inserted on serializing""

}", json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("This value was reset after serialization.", obj.Member2);

      Assert.AreEqual("This is a nonserialized value", obj.Member3);

      Assert.AreEqual(null, obj.Member4);

      obj = JsonConvert.DeserializeObject<SerializationEventTestDictionary>(json);

      Assert.AreEqual(11, obj.Member1);

      Assert.AreEqual("Hello World!", obj.Member2);

      Assert.AreEqual("This value was set during deserialization", obj.Member3);

      Assert.AreEqual("This value was set after deserialization.", obj.Member4);

    }

    [Test]

    public void ObjectEventsDocumentationExample()

    {

      SerializationEventTestObject obj = new SerializationEventTestObject();

      Console.WriteLine(obj.Member1);

      // 11

      Console.WriteLine(obj.Member2);

      // Hello World!

      Console.WriteLine(obj.Member3);

      // This is a nonserialized value

      Console.WriteLine(obj.Member4);

      // null

      Console.WriteLine(obj.Member5);

      // null

      string json = JsonConvert.SerializeObject(obj, Formatting.Indented);

      // {

      //   "Member1": 11,

      //   "Member2": "This value went into the data file during serialization.",

      //   "Member4": null

      // }

      Console.WriteLine(obj.Member1);

      // 11

      Console.WriteLine(obj.Member2);

      // This value was reset after serialization.

      Console.WriteLine(obj.Member3);

      // This is a nonserialized value

      Console.WriteLine(obj.Member4);

      // null

      Console.WriteLine(obj.Member5);

      // Error message for member Member6 = Exception has been thrown by the target of an invocation.

      obj = JsonConvert.DeserializeObject<SerializationEventTestObject>(json);

      Console.WriteLine(obj.Member1);

      // 11

      Console.WriteLine(obj.Member2);

      // This value went into the data file during serialization.

      Console.WriteLine(obj.Member3);

      // This value was set during deserialization

      Console.WriteLine(obj.Member4);

      // This value was set after deserialization.

    }

#if !SILVERLIGHT

    public class SerializationEventContextTestObject

    {

      public string TestMember { get; set; }

      [OnSerializing]

      internal void OnSerializingMethod(StreamingContext context)

      {

        TestMember = context.State + " " + context.Context;

      }

    }

    [Test]

    public void SerializationEventContextTest()

    {

      SerializationEventContextTestObject value = new SerializationEventContextTestObject();

      string json = JsonConvert.SerializeObject(value, Formatting.Indented, new JsonSerializerSettings

                                                                              {

                                                                                Context =

                                                                                  new StreamingContext(

                                                                                  StreamingContextStates.Remoting,

                                                                                  "ContextValue")

                                                                              });

      Assert.AreEqual(@"{

  ""TestMember"": ""Remoting ContextValue""

}", json);

    }

#endif

  }

}

#endif