Add unit test for default DateTime and DateTimeOffset serialization in NEST

Add DateTime with ticks to 7 significant figures

Author: russcam

src/Tests/Nest.Tests.Unit/Internals/Serialize/DateTimeZoneHandlingTests.cs

@@ -0,0 +1,89 @@
+using System;
+using System.IO;
+using System.Text;
+using Elasticsearch.Net;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using NUnit.Framework;
+
+namespace Nest.Tests.Unit.Internals.Serialize.DateTimes
+{
+	public abstract class DateTimeHandlingTestsBase
+	{
+		protected Flight Flight;
+		protected string LocalOffsetString;
+		protected TimeSpan LocalOffset;
+
+		[SetUp]
+		public void SetUp()
+		{
+			var departureDateLocal = new DateTime(2013, 1, 21, 0, 0, 0, DateTimeKind.Local);
+			LocalOffset = TimeZoneInfo.Local.GetUtcOffset(departureDateLocal);
+
+			var departureDateUtc = new DateTime(2013, 1, 21, 0, 0, 0, DateTimeKind.Utc);
+
+			Flight = new Flight
+			{
+				DepartureDate = new DateTime(2013, 1, 21, 0, 0, 0, DateTimeKind.Unspecified),
+				DepartureDateUtc = departureDateUtc,
+				DepartureDateLocal = departureDateLocal,
+				DepartureDateUtcWithTicks = departureDateUtc.AddTicks(3456789),
+				DepartureDateOffset = new DateTimeOffset(2013, 1, 21, 0, 0, 0, LocalOffset),
+				DepartureDateOffsetZero = new DateTimeOffset(2013, 1, 21, 0, 0, 0, TimeSpan.Zero),
+				DepartureDateOffsetNonLocal = new DateTimeOffset(2013, 1, 21, 0, 0, 0, TimeSpan.FromHours(-6.25)),
+			};
+
+			LocalOffsetString = string.Format("{0}:{1}",
+				LocalOffset.Hours.ToString("+00;-00;"),
+				LocalOffset.Minutes.ToString("00"));
+		}
+
+		protected string SerializeUsing(
+			DateTimeZoneHandling? handling = null,
+			Func<IConnectionSettingsValues, IContractResolver> contractResolver = null)
+		{
+			var settings = new ConnectionSettings();
+
+			settings
+				.SetDefaultPropertyNameInferrer(p => p)
+				.SetJsonSerializerSettingsModifier(s =>
+				{
+					s.Formatting = Formatting.Indented;
+
+					if (handling.HasValue)
+						s.DateTimeZoneHandling = handling.Value;
+					
+					if (contractResolver != null)
+						s.ContractResolver = contractResolver(settings);
+				});
+
+			var client = new ElasticClient(settings);
+			return client.Serializer.Serialize(Flight).Utf8String();
+		}
+
+		protected Flight DeserializeUsing(
+			string json, 
+			DateTimeZoneHandling? handling = null, 
+			Func<IConnectionSettingsValues, IContractResolver> contractResolver = null)
+		{
+			var settings = new ConnectionSettings();
+
+			settings
+				.SetDefaultPropertyNameInferrer(p => p)
+				.SetJsonSerializerSettingsModifier(s =>
+				{
+					if (handling.HasValue)
+						s.DateTimeZoneHandling = handling.Value;
+
+					if (contractResolver != null)
+						s.ContractResolver = contractResolver(settings);
+				});
+
+			var client = new ElasticClient(settings);
+			using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(json)))
+			{
+				return client.Serializer.Deserialize<Flight>(stream);
+			}
+		}
+	}
+}