Newtonsoft.Json.Tests\Serialization\CamelCasePropertyNamesContractResolverTests.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.Collections.Generic;

using System.Linq;

using System.Text;

using Newtonsoft.Json.Serialization;

using NUnit.Framework;

using Newtonsoft.Json.Tests.TestObjects;

using Newtonsoft.Json.Linq;

using System.Reflection;

using Newtonsoft.Json.Utilities;

namespace Newtonsoft.Json.Tests.Serialization

{

  public class CamelCasePropertyNamesContractResolverTests : TestFixtureBase

  {

    [Test]

    public void JsonConvertSerializerSettings()

    {

      Person person = new Person();

      person.BirthDate = new DateTime(2000, 11, 20, 23, 55, 44, DateTimeKind.Utc);

      person.LastModified = new DateTime(2000, 11, 20, 23, 55, 44, DateTimeKind.Utc);

      person.Name = "Name!";

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

                                                               {

                                                                 ContractResolver = new CamelCasePropertyNamesContractResolver()

                                                               });

      Assert.AreEqual(@"{

  ""name"": ""Name!"",

  ""birthDate"": ""\/Date(974764544000)\/"",

  ""lastModified"": ""\/Date(974764544000)\/""

}", json);

      Person deserializedPerson = JsonConvert.DeserializeObject<Person>(json, new JsonSerializerSettings

                                                                        {

                                                                          ContractResolver = new CamelCasePropertyNamesContractResolver()

                                                                        });

      Assert.AreEqual(person.BirthDate, deserializedPerson.BirthDate);

      Assert.AreEqual(person.LastModified, deserializedPerson.LastModified);

      Assert.AreEqual(person.Name, deserializedPerson.Name);

      json = JsonConvert.SerializeObject(person, Formatting.Indented);

      Assert.AreEqual(@"{

  ""Name"": ""Name!"",

  ""BirthDate"": ""\/Date(974764544000)\/"",

  ""LastModified"": ""\/Date(974764544000)\/""

}", json);

    }

    [Test]

    public void JTokenWriter()

    {

      JsonIgnoreAttributeOnClassTestClass ignoreAttributeOnClassTestClass = new JsonIgnoreAttributeOnClassTestClass();

      ignoreAttributeOnClassTestClass.Field = int.MinValue;

      JsonSerializer serializer = new JsonSerializer();

      serializer.ContractResolver = new CamelCasePropertyNamesContractResolver();

      JTokenWriter writer = new JTokenWriter();

      serializer.Serialize(writer, ignoreAttributeOnClassTestClass);

      JObject o = (JObject) writer.Token;

      JProperty p = o.Property("theField");

      Assert.IsNotNull(p);

      Assert.AreEqual(int.MinValue, (int)p.Value);

      string json = o.ToString();

    }

    [Test]

    public void MemberSearchFlags()

    {

      PrivateMembersClass privateMembersClass = new PrivateMembersClass("PrivateString!", "InternalString!");

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

      {

        ContractResolver = new CamelCasePropertyNamesContractResolver { DefaultMembersSearchFlags = BindingFlags.NonPublic | BindingFlags.Instance }

      });

      Assert.AreEqual(@"{

  ""_privateString"": ""PrivateString!"",

  ""i"": 0,

  ""_internalString"": ""InternalString!""

}", json);

      PrivateMembersClass deserializedPrivateMembersClass = JsonConvert.DeserializeObject<PrivateMembersClass>(@"{

  ""_privateString"": ""Private!"",

  ""i"": -2,

  ""_internalString"": ""Internal!""

}", new JsonSerializerSettings

      {

        ContractResolver = new CamelCasePropertyNamesContractResolver { DefaultMembersSearchFlags = BindingFlags.NonPublic | BindingFlags.Instance }

      });

      Assert.AreEqual("Private!", ReflectionUtils.GetMemberValue(typeof(PrivateMembersClass).GetField("_privateString", BindingFlags.Instance | BindingFlags.NonPublic), deserializedPrivateMembersClass));

      Assert.AreEqual("Internal!", ReflectionUtils.GetMemberValue(typeof(PrivateMembersClass).GetField("_internalString", BindingFlags.Instance | BindingFlags.NonPublic), deserializedPrivateMembersClass));

      // readonly

      Assert.AreEqual(0, ReflectionUtils.GetMemberValue(typeof(PrivateMembersClass).GetField("i", BindingFlags.Instance | BindingFlags.NonPublic), deserializedPrivateMembersClass));

    }

    [Test]

    public void BlogPostExample()

    {

      Product product = new Product

                          {

                            ExpiryDate = new DateTime(2010, 12, 20, 18, 1, 0, DateTimeKind.Utc),

                            Name = "Widget",

                            Price = 9.99m,

                            Sizes = new[] {"Small", "Medium", "Large"}

                          };

      string json = 

        JsonConvert.SerializeObject(

          product,

          Formatting.Indented,

          new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() }

        );

      //{

      //  "name": "Widget",

      //  "expiryDate": "\/Date(1292868060000)\/",

      //  "price": 9.99,

      //  "sizes": [

      //    "Small",

      //    "Medium",

      //    "Large"

      //  ]

      //}

      Assert.AreEqual(@"{

  ""name"": ""Widget"",

  ""expiryDate"": ""\/Date(1292868060000)\/"",

  ""price"": 9.99,

  ""sizes"": [

    ""Small"",

    ""Medium"",

    ""Large""

  ]

}", json);

    }

  }

}