File: MissingMemberHandlingTests.cs

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#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;
#if !NETFX_CORE
using NUnit.Framework;
#else
using Microsoft.VisualStudio.TestTools.UnitTesting;
using TestFixture = Microsoft.VisualStudio.TestTools.UnitTesting.TestClassAttribute;
using Test = Microsoft.VisualStudio.TestTools.UnitTesting.TestMethodAttribute;
#endif

namespace Newtonsoft.Json.Tests.Serialization
{
  [TestFixture]
  public class MissingMemberHandlingTests : TestFixtureBase
  {
    [Test]
    [ExpectedException(typeof(JsonSerializationException)
#if !NETFX_CORE
      , ExpectedMessage = @"Could not find member 'Price' on object of type 'ProductShort'. Line 4, position 11."
#endif
      )]
    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, Formatting.Indented);
      //{
      //  "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)
#if !NETFX_CORE
      , ExpectedMessage = "Could not find member 'Missing' on object of type 'DoubleClass'. Line 1, position 11."
#endif
      )]
    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
        });
    }
  }
}