public void MultipleLayerClass_Test()
{
var typeMapping = new TypeMapping <Multiple1LayerClass>();
var mappings1 = new KeyValuePair <Expression <Func <Multiple1LayerClass, object> >, FieldTypes>(ic => ic.Obj, FieldTypes.Object);
var mappings2 = new KeyValuePair <Expression <Func <Multiple1LayerClass, object> >, FieldTypes>(ic => ic.Nested, FieldTypes.Nested);
typeMapping.AddMapping(mappings1, mappings2);
typeMapping.AddNestedMapping(mlc => mlc.Nested,
new KeyValuePair <Expression <Func <Multiple2LayerClass, object> >, FieldTypes>(ml2 => ml2.Word, FieldTypes.Keyword),
new KeyValuePair <Expression <Func <Multiple2LayerClass, object> >, FieldTypes>(ml2 => ml2.Value, FieldTypes.Double),
new KeyValuePair <Expression <Func <Multiple2LayerClass, object> >, FieldTypes>(ml2 => ml2.DateTime, FieldTypes.Date));
typeMapping.AddObjectMapping(mlc => mlc.Obj,
new KeyValuePair <Expression <Func <Multiple2LayerClass, object> >, FieldTypes>(ml2 => ml2.Word, FieldTypes.Keyword),
new KeyValuePair <Expression <Func <Multiple2LayerClass, object> >, FieldTypes>(ml2 => ml2.Value, FieldTypes.Double),
new KeyValuePair <Expression <Func <Multiple2LayerClass, object> >, FieldTypes>(ml2 => ml2.DateTime, FieldTypes.Date));
var mlTm = typeof(Multiple1LayerClass).GetTypeMapping <Multiple1LayerClass>();
var json1 = JsonConvert.SerializeObject(new { mappings = typeMapping });
var json2 = JsonConvert.SerializeObject(new { mappings = mlTm });
Assert.AreEqual(json1, json2);
}