#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 !(NET35 || NET20 || PORTABLE || DNXCORE50) using System; using System.Collections.Generic; using System.ComponentModel; using System.Dynamic; using System.IO; using System.Linq; using System.Net; using System.Reflection; using System.Runtime.Serialization; using System.Text; using System.Threading.Tasks; using Newtonsoft.Json.Converters; using Newtonsoft.Json.Linq; #if DNXCORE50 using Xunit; using Test = Xunit.FactAttribute; using Assert = Newtonsoft.Json.Tests.XUnitAssert; #else using NUnit.Framework; #endif using Newtonsoft.Json.Serialization; using Newtonsoft.Json.Tests.TestObjects; using Newtonsoft.Json.Utilities; using System.Globalization; namespace Newtonsoft.Json.Tests.Documentation { public class Employee { public string Name { get; set; } public Employee Manager { get; set; } } #region ShouldSerializeContractResolver public class ShouldSerializeContractResolver : DefaultContractResolver { public new static readonly ShouldSerializeContractResolver Instance = new ShouldSerializeContractResolver(); protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization) { JsonProperty property = base.CreateProperty(member, memberSerialization); if (property.DeclaringType == typeof(Employee) && property.PropertyName == "Manager") { property.ShouldSerialize = instance => { Employee e = (Employee)instance; return e.Manager != e; }; } return property; } } #endregion [TestFixture] public class ConditionalPropertiesTests : TestFixtureBase { #region EmployeeShouldSerializeExample public class Employee { public string Name { get; set; } public Employee Manager { get; set; } public bool ShouldSerializeManager() { // don't serialize the Manager property if an employee is their own manager return (Manager != this); } } #endregion [Test] public void ShouldSerializeClassTest() { #region ShouldSerializeClassTest Employee joe = new Employee(); joe.Name = "Joe Employee"; Employee mike = new Employee(); mike.Name = "Mike Manager"; joe.Manager = mike; // mike is his own manager // ShouldSerialize will skip this property mike.Manager = mike; string json = JsonConvert.SerializeObject(new[] { joe, mike }, Formatting.Indented); // [ // { // "Name": "Joe Employee", // "Manager": { // "Name": "Mike Manager" // } // }, // { // "Name": "Mike Manager" // } // ] #endregion StringAssert.AreEqual(@"[ { ""Name"": ""Joe Employee"", ""Manager"": { ""Name"": ""Mike Manager"" } }, { ""Name"": ""Mike Manager"" } ]", json); } [Test] public void ShouldSerializeContractResolverTest() { Newtonsoft.Json.Tests.Documentation.Employee joe = new Newtonsoft.Json.Tests.Documentation.Employee(); joe.Name = "Joe Employee"; Newtonsoft.Json.Tests.Documentation.Employee mike = new Newtonsoft.Json.Tests.Documentation.Employee(); mike.Name = "Mike Manager"; joe.Manager = mike; mike.Manager = mike; string json = JsonConvert.SerializeObject( new[] { joe, mike }, Formatting.Indented, new JsonSerializerSettings { ContractResolver = ShouldSerializeContractResolver.Instance }); StringAssert.AreEqual(@"[ { ""Name"": ""Joe Employee"", ""Manager"": { ""Name"": ""Mike Manager"" } }, { ""Name"": ""Mike Manager"" } ]", json); } } } #endif