#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; #if DNXCORE50 using System.Reflection; using Xunit; using Test = Xunit.FactAttribute; using Assert = Newtonsoft.Json.Tests.XUnitAssert; #else using NUnit.Framework; #endif namespace Newtonsoft.Json.Tests.Issues { [TestFixture] public class Issue1552 : TestFixtureBase { [Test] public void Test_Error() { RefAndRefReadonlyTestClass c = new RefAndRefReadonlyTestClass(123); c.SetRefField(456); JsonSerializationException ex = ExceptionAssert.Throws( () => JsonConvert.SerializeObject(c), "Error getting value from 'RefField' on 'Newtonsoft.Json.Tests.Issues.RefAndRefReadonlyTestClass'."); Assert.AreEqual("Could not create getter for Int32& RefField. ByRef return values are not supported.", ex.InnerException.Message); } [Test] public void Test_Ignore() { RefAndRefReadonlyIgnoredTestClass c = new RefAndRefReadonlyIgnoredTestClass(123); c.SetRefField(456); string json = JsonConvert.SerializeObject(c); Assert.AreEqual("{}", json); } } public class RefAndRefReadonlyTestClass { private int _refField; private readonly int _refReadonlyField; public RefAndRefReadonlyTestClass(int refReadonlyField) { _refReadonlyField = refReadonlyField; } public ref int RefField => ref _refField; public ref readonly int RefReadonlyField => ref _refReadonlyField; public void SetRefField(int value) { _refField = value; } } public class RefAndRefReadonlyIgnoredTestClass { private int _refField; private readonly int _refReadonlyField; public RefAndRefReadonlyIgnoredTestClass(int refReadonlyField) { _refReadonlyField = refReadonlyField; } [JsonIgnore] public ref int RefField => ref _refField; [JsonIgnore] public ref readonly int RefReadonlyField => ref _refReadonlyField; public void SetRefField(int value) { _refField = value; } } }