public void Convert_JsonString_To_Datable() { string json = new Car() { Ids = new int[] { 1, 2, 3 }, Name = "Nissan Primera 1.8 Flare 5dr", Colour = "Red", Engine = new Engine() { EngineSize = "1.8L", Measure = new Type() { Name = "New measure Type" } } }.ObjectToJson(); var dataTable = json.ConvertJsonToDatatable(); Assert.True(dataTable.Rows.Count == 11); }