Newtonsoft.Json.Tests\Serialization\MissingMemberHandlingTests.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

using System;

using System.IO;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Tests.TestObjects;

using NUnit.Framework;

namespace Newtonsoft.Json.Tests.Serialization

{

  public class MissingMemberHandlingTests : TestFixtureBase

  {

    [Test]

    [ExpectedException(typeof(JsonSerializationException), ExpectedMessage = @"Could not find member 'Price' on object of type 'ProductShort'")]

    public void MissingMemberDeserialize()

    {

      Product product = new Product();

      product.Name = "Apple";

      product.ExpiryDate = new DateTime(2008, 12, 28);

      product.Price = 3.99M;

      product.Sizes = new string[] { "Small", "Medium", "Large" };

      string output = JsonConvert.SerializeObject(product);

      //{

      //  "Name": "Apple",

      //  "ExpiryDate": new Date(1230422400000),

      //  "Price": 3.99,

      //  "Sizes": [

      //    "Small",

      //    "Medium",

      //    "Large"

      //  ]

      //}

      ProductShort deserializedProductShort = (ProductShort)JsonConvert.DeserializeObject(output, typeof(ProductShort), new JsonSerializerSettings { MissingMemberHandling = MissingMemberHandling.Error });

    }

    [Test]

    public void MissingMemberDeserializeOkay()

    {

      Product product = new Product();

      product.Name = "Apple";

      product.ExpiryDate = new DateTime(2008, 12, 28);

      product.Price = 3.99M;

      product.Sizes = new string[] { "Small", "Medium", "Large" };

      string output = JsonConvert.SerializeObject(product);

      //{

      //  "Name": "Apple",

      //  "ExpiryDate": new Date(1230422400000),

      //  "Price": 3.99,

      //  "Sizes": [

      //    "Small",

      //    "Medium",

      //    "Large"

      //  ]

      //}

      JsonSerializer jsonSerializer = new JsonSerializer();

      jsonSerializer.MissingMemberHandling = MissingMemberHandling.Ignore;

      object deserializedValue;

      using (JsonReader jsonReader = new JsonTextReader(new StringReader(output)))

      {

        deserializedValue = jsonSerializer.Deserialize(jsonReader, typeof(ProductShort));

      }

      ProductShort deserializedProductShort = (ProductShort)deserializedValue;

      Assert.AreEqual("Apple", deserializedProductShort.Name);

      Assert.AreEqual(new DateTime(2008, 12, 28), deserializedProductShort.ExpiryDate);

      Assert.AreEqual("Small", deserializedProductShort.Sizes[0]);

      Assert.AreEqual("Medium", deserializedProductShort.Sizes[1]);

      Assert.AreEqual("Large", deserializedProductShort.Sizes[2]);

    }

    [Test]

    public void MissingMemberIgnoreComplexValue()

    {

      JsonSerializer serializer = new JsonSerializer { MissingMemberHandling = MissingMemberHandling.Ignore };

      serializer.Converters.Add(new JavaScriptDateTimeConverter());

      string response = @"{""PreProperty"":1,""DateProperty"":new Date(1225962698973),""PostProperty"":2}";

      MyClass myClass = (MyClass)serializer.Deserialize(new StringReader(response), typeof(MyClass));

      Assert.AreEqual(1, myClass.PreProperty);

      Assert.AreEqual(2, myClass.PostProperty);

    }

    [Test]

    [ExpectedException(typeof(JsonSerializationException), ExpectedMessage = "Could not find member 'Missing' on object of type 'DoubleClass'")]

    public void MissingMemeber()

    {

      string json = @"{""Missing"":1}";

      JsonConvert.DeserializeObject<DoubleClass>(json, new JsonSerializerSettings { MissingMemberHandling = MissingMemberHandling.Error });

    }

    [Test]

    public void MissingJson()

    {

      string json = @"{}";

      JsonConvert.DeserializeObject<DoubleClass>(json, new JsonSerializerSettings

        {

          MissingMemberHandling = MissingMemberHandling.Error

        });

    }

  }

}