public void Setup()
{
var enumerableConverter = new EnumerableConverter <ItemType, JsonStringEnumConverter>();
using var ms = new MemoryStream();
using (var writer = new Utf8JsonWriter(ms))
{
var itemTypeList = new List <ItemType>
{
ItemType.Unknown,
ItemType.Address
};
writer.WriteStartArray();
enumerableConverter.Write(writer, itemTypeList, new JsonSerializerOptions());
writer.WriteEndArray();
}
_result = System.Text.Encoding.UTF8.GetString(ms.ToArray());
}