A handy helper to do a round trip serialization test (JSON)

AssertHelpers.cs

/// <summary>
/// Helpers to do asserts on objects in bulk
/// </summary>
public static class AssertHelpers
{
	#region "Serialization Helper"

	/// <summary>
	/// XUnit Tests that a model serializes correctly
	/// </summary>
	/// <typeparam name="T">Type</typeparam>
	/// <param name="thing1">Instance of T to test</param>
	/// <param name="output">XUnit Test Output</param>
	public static void AssertSerialization<T>(T thing1, TestContext output)
	{
		var json = JsonConvert.SerializeObject(thing1);

		output.WriteLine("{0} -> {1}", thing1.GetType().Name, json);

		T thing2 = JsonConvert.DeserializeObject<T>(json);

		Dictionary<String, Object> t1 = thing1.GetType()
			.GetProperties()
			.Where(p => p.CanRead)
			.ToDictionary(p => p.Name, p => p.GetValue(thing1, null));

		Dictionary<String, Object> t2 = thing2.GetType()
			.GetProperties()
			.Where(p => p.CanRead)
			.ToDictionary(p => p.Name, p => p.GetValue(thing2, null));

		foreach (var key in t1.Keys)
		{
			var type = thing1.GetType();
			var mem = type.GetMember(key).First();
			if (!Attribute.IsDefined(mem, typeof(JsonIgnoreAttribute)))
			{
				if (t1[key] != null)
				{
					Assert.AreEqual(t1[key].ToString(), t2[key].ToString());
				}
			}
		}
	}

	#endregion
}