Serialize an ExpandoObject to a JSON string by wrapping it in a DynamicJsonObject

JsonEncodeAnExpandoObjectByWrappingItInADynamicJsonObject.cs

// By default, Json.Encode will turn an ExpandoObject into an array of items,
// because internally an ExpandoObject extends IEnumerable<KeyValuePair<string, object>>.
// You can turn it into a non-list JSON string by first wrapping it in a DynamicJsonObject.
[TestMethod]
public void JsonEncodeAnExpandoObjectByWrappingItInADynamicJsonObject()
{
    dynamic expando = new ExpandoObject();
    expando.Value = 10;
    expando.Product = "Apples";

    var expandoResult    = System.Web.Helpers.Json.Encode(expando);
    var dictionaryResult = System.Web.Helpers.Json.Encode(new DynamicJsonObject(expando));

    Assert.AreEqual("{\"Value\":10,\"Product\":\"Apples\"}", expandoResult);    // FAILS (encodes as an array instead)
    Assert.AreEqual("{\"Value\":10,\"Product\":\"Apples\"}", dictionaryResult); // PASSES
}