/// <summary>
        /// Serializes an object.
        /// </summary>
        /// <param name="value">The value to serialize</param>
        /// <returns>The serialized value</returns>
        public static string Serialize(object value)
        {
            if (value == null)
            {
                throw new ArgumentNullException("value");
            }

            var array = value as object[];

            if (array != null)
            {
                value = new XunitSerializationInfo.ArraySerializer(array);
            }

            var serializable = value as IXunitSerializable;

            if (serializable == null)
            {
                throw new ArgumentException("Cannot serialize an object that does not implement " + typeof(IXunitSerializable).FullName, "value");
            }

            var serializationInfo = new XunitSerializationInfo(serializable);

            return(String.Format("{0}:{1}", GetTypeNameForSerialization(value.GetType()), serializationInfo.ToSerializedString()));
        }