404 lines
13 KiB
C#
404 lines
13 KiB
C#
#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Runtime.Serialization.Formatters;
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using System.Text;
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using Newtonsoft.Json.Linq;
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using Newtonsoft.Json.Tests.TestObjects;
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using Newtonsoft.Json.Utilities;
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#if !NETFX_CORE
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using NUnit.Framework;
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#else
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using Microsoft.VisualStudio.TestPlatform.UnitTestFramework;
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using TestFixture = Microsoft.VisualStudio.TestPlatform.UnitTestFramework.TestClassAttribute;
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using Test = Microsoft.VisualStudio.TestPlatform.UnitTestFramework.TestMethodAttribute;
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#endif
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namespace Newtonsoft.Json.Tests.Serialization
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{
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[TestFixture]
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public class MetadataPropertyHandlingTests : TestFixtureBase
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{
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[Test]
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public void DeserializeArraysWithPreserveObjectReferences()
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{
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string json = @"{
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""$id"": ""1"",
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""$values"": [
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null,
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{
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""$id"": ""2"",
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""$values"": [
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null
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]
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},
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{
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""$id"": ""3"",
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""$values"": [
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{
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""$id"": ""4"",
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""$values"": [
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{
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""$ref"": ""1""
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}
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]
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}
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]
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}
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]
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}";
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ExceptionAssert.Throws<JsonSerializationException>(
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@"Cannot preserve reference to array or readonly list, or list created from a non-default constructor: System.String[][]. Path '$values', line 3, position 15.",
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() =>
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{
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JsonConvert.DeserializeObject<string[][]>(json,
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new JsonSerializerSettings
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{
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PreserveReferencesHandling = PreserveReferencesHandling.All,
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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});
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}
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#if !NETFX_CORE
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[Test]
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public void SerializeDeserialize_DictionaryContextContainsGuid_DeserializesItemAsGuid()
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{
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const string contextKey = "k1";
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var someValue = Guid.NewGuid();
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Dictionary<string, Guid> inputContext = new Dictionary<string, Guid>();
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inputContext.Add(contextKey, someValue);
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JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings()
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{
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Formatting = Formatting.Indented,
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TypeNameHandling = TypeNameHandling.All,
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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};
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string serializedString = JsonConvert.SerializeObject(inputContext, jsonSerializerSettings);
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Console.WriteLine(serializedString);
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var deserializedObject = (Dictionary<string, Guid>)JsonConvert.DeserializeObject(serializedString, jsonSerializerSettings);
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Assert.AreEqual(someValue, deserializedObject[contextKey]);
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}
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#endif
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[Test]
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public void DeserializeGuid()
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{
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Item expected = new Item()
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{
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SourceTypeID = new Guid("d8220a4b-75b1-4b7a-8112-b7bdae956a45"),
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BrokerID = new Guid("951663c4-924e-4c86-a57a-7ed737501dbd"),
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Latitude = 33.657145,
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Longitude = -117.766684,
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TimeStamp = new DateTime(2000, 3, 1, 23, 59, 59, DateTimeKind.Utc),
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Payload = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }
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};
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string jsonString = JsonConvert.SerializeObject(expected, Formatting.Indented);
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Assert.AreEqual(@"{
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""SourceTypeID"": ""d8220a4b-75b1-4b7a-8112-b7bdae956a45"",
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""BrokerID"": ""951663c4-924e-4c86-a57a-7ed737501dbd"",
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""Latitude"": 33.657145,
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""Longitude"": -117.766684,
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""TimeStamp"": ""2000-03-01T23:59:59Z"",
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""Payload"": {
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""$type"": ""System.Byte[], mscorlib"",
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""$value"": ""AAECAwQFBgcICQ==""
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}
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}", jsonString);
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Item actual = JsonConvert.DeserializeObject<Item>(jsonString, new JsonSerializerSettings
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{
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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Assert.AreEqual(new Guid("d8220a4b-75b1-4b7a-8112-b7bdae956a45"), actual.SourceTypeID);
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Assert.AreEqual(new Guid("951663c4-924e-4c86-a57a-7ed737501dbd"), actual.BrokerID);
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byte[] bytes = (byte[])actual.Payload;
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CollectionAssert.AreEquivalent(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }, bytes);
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}
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[Test]
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public void DeserializeListsWithPreserveObjectReferences()
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{
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string json = @"{
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""$id"": ""1"",
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""$values"": [
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null,
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{
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""$id"": ""2"",
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""$values"": [
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null
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]
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},
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{
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""$id"": ""3"",
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""$values"": [
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{
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""$id"": ""4"",
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""$values"": [
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{
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""$ref"": ""1""
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}
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]
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}
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]
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}
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]
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}";
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PreserveReferencesHandlingTests.CircularList circularList = JsonConvert.DeserializeObject<PreserveReferencesHandlingTests.CircularList>(json,
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new JsonSerializerSettings
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{
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PreserveReferencesHandling = PreserveReferencesHandling.All,
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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Assert.AreEqual(3, circularList.Count);
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Assert.AreEqual(null, circularList[0]);
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Assert.AreEqual(1, circularList[1].Count);
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Assert.AreEqual(1, circularList[2].Count);
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Assert.AreEqual(1, circularList[2][0].Count);
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Assert.IsTrue(ReferenceEquals(circularList, circularList[2][0][0]));
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}
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[Test]
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public void DeserializeTypeNameOnly()
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{
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string json = @"{
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""$id"": ""1"",
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""$type"": ""Newtonsoft.Json.Tests.TestObjects.Employee"",
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""Name"": ""Name!"",
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""Manager"": null
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}";
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ExceptionAssert.Throws<JsonSerializationException>(
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"Type specified in JSON 'Newtonsoft.Json.Tests.TestObjects.Employee' was not resolved. Path '$type', line 3, position 56.",
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() =>
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{
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JsonConvert.DeserializeObject(json, null, new JsonSerializerSettings
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{
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TypeNameHandling = TypeNameHandling.Objects,
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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});
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}
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[Test]
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public void SerializeRefNull()
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{
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var reference = new Dictionary<string, object>();
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reference.Add("blah", "blah!");
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reference.Add("$ref", null);
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reference.Add("$id", null);
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var child = new Dictionary<string, object>();
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child.Add("_id", 2);
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child.Add("Name", "Isabell");
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child.Add("Father", reference);
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string json = JsonConvert.SerializeObject(child, Formatting.Indented);
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Console.WriteLine(json);
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Dictionary<string, object> result = JsonConvert.DeserializeObject<Dictionary<string, object>>(json, new JsonSerializerSettings
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{
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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Assert.AreEqual(3, result.Count);
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Assert.AreEqual(1, ((JObject)result["Father"]).Count);
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Assert.AreEqual("blah!", (string)((JObject)result["Father"])["blah"]);
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}
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[Test]
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public void DeserializeEmployeeReference()
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{
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string json = @"[
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{
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""Name"": ""Mike Manager"",
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""$id"": ""1"",
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""Manager"": null
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},
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{
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""Name"": ""Joe User"",
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""$id"": ""2"",
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""Manager"": {
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""$ref"": ""1""
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}
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}
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]";
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List<EmployeeReference> employees = JsonConvert.DeserializeObject<List<EmployeeReference>>(json, new JsonSerializerSettings
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{
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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Assert.AreEqual(2, employees.Count);
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Assert.AreEqual("Mike Manager", employees[0].Name);
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Assert.AreEqual("Joe User", employees[1].Name);
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Assert.AreEqual(employees[0], employees[1].Manager);
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}
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[Test]
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public void DeserializeFromJToken()
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{
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string json = @"[
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{
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""Name"": ""Mike Manager"",
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""$id"": ""1"",
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""Manager"": null
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},
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{
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""Name"": ""Joe User"",
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""$id"": ""2"",
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""Manager"": {
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""$ref"": ""1""
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}
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}
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]";
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JToken t1 = JToken.Parse(json);
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JToken t2 = t1.CloneToken();
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List<EmployeeReference> employees = t1.ToObject<List<EmployeeReference>>(JsonSerializer.Create(new JsonSerializerSettings
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{
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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}));
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Assert.AreEqual(2, employees.Count);
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Assert.AreEqual("Mike Manager", employees[0].Name);
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Assert.AreEqual("Joe User", employees[1].Name);
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Assert.AreEqual(employees[0], employees[1].Manager);
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Assert.IsTrue(JToken.DeepEquals(t1, t2));
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}
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#if !(PORTABLE || PORTABLE40)
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[Test]
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public void DeserializeGenericObjectListWithTypeName()
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{
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string employeeRef = typeof(EmployeeReference).AssemblyQualifiedName;
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string personRef = typeof(Person).AssemblyQualifiedName;
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string json = @"[
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{
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""Name"": ""Bob"",
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""$id"": ""1"",
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""$type"": """ + employeeRef + @""",
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""Manager"": {
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""$id"": ""2"",
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""$type"": """ + employeeRef + @""",
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""Name"": ""Frank"",
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""Manager"": null
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}
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},
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{
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""Name"": null,
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""$type"": """ + personRef + @""",
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""BirthDate"": ""\/Date(978134400000)\/"",
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""LastModified"": ""\/Date(978134400000)\/""
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},
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""String!"",
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-2147483648
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]";
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List<object> values = (List<object>)JsonConvert.DeserializeObject(json, typeof(List<object>), new JsonSerializerSettings
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{
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TypeNameHandling = TypeNameHandling.Objects,
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TypeNameAssemblyFormat = FormatterAssemblyStyle.Full,
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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Assert.AreEqual(4, values.Count);
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EmployeeReference e = (EmployeeReference)values[0];
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Person p = (Person)values[1];
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Assert.AreEqual("Bob", e.Name);
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Assert.AreEqual("Frank", e.Manager.Name);
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Assert.AreEqual(null, p.Name);
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Assert.AreEqual(new DateTime(2000, 12, 30, 0, 0, 0, DateTimeKind.Utc), p.BirthDate);
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Assert.AreEqual(new DateTime(2000, 12, 30, 0, 0, 0, DateTimeKind.Utc), p.LastModified);
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Assert.AreEqual("String!", values[2]);
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Assert.AreEqual((long)int.MinValue, values[3]);
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}
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[Test]
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public void WriteListTypeNameForProperty()
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{
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string listRef = ReflectionUtils.GetTypeName(typeof(List<int>), FormatterAssemblyStyle.Simple, null);
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TypeNameHandlingTests.TypeNameProperty typeNameProperty = new TypeNameHandlingTests.TypeNameProperty
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{
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Name = "Name!",
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Value = new List<int> { 1, 2, 3, 4, 5 }
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};
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string json = JsonConvert.SerializeObject(typeNameProperty, Formatting.Indented);
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Assert.AreEqual(@"{
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""Name"": ""Name!"",
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""Value"": {
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""$type"": """ + listRef + @""",
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""$values"": [
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1,
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2,
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3,
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4,
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5
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]
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}
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}", json);
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TypeNameHandlingTests.TypeNameProperty deserialized = JsonConvert.DeserializeObject<TypeNameHandlingTests.TypeNameProperty>(json, new JsonSerializerSettings
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{
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MetadataPropertyHandling = MetadataPropertyHandling.ReadAhead
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});
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Assert.AreEqual("Name!", deserialized.Name);
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CustomAssert.IsInstanceOfType(typeof(List<int>), deserialized.Value);
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List<int> nested = (List<int>)deserialized.Value;
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Assert.AreEqual(5, nested.Count);
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Assert.AreEqual(1, nested[0]);
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Assert.AreEqual(2, nested[1]);
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Assert.AreEqual(3, nested[2]);
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Assert.AreEqual(4, nested[3]);
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Assert.AreEqual(5, nested[4]);
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}
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#endif
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}
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} |