public void GetStringReport_WhenCalled_ReturningEmptyLines(string splitter)
        {
            List <dynamic> data = new List <dynamic>
            {
                new Dictionary <string, object>()
                {
                    ["user"] = "******",
                    ["age"]  = 30,
                    ["sex"]  = null
                },
                new Dictionary <string, object>
                {
                    ["user"] = null,
                    ["age"]  = null,
                    ["sex"]  = "male"
                },
                new Dictionary <string, object>
                {
                    ["user"] = "******",
                    ["age"]  = 10000,
                    ["sex"]  = "male"
                }
            };

            var expected = $"user{splitter}age{splitter}sex{Environment.NewLine}" +
                           $"james{splitter}30{splitter}{splitter}{Environment.NewLine}" +
                           $"{splitter}{splitter}male{splitter}{Environment.NewLine}" +
                           $"mr.popo{splitter}10000{splitter}male{splitter}";

            var result = CsvGenerator.GetStringReport(data, splitter);

            result.Should().Be(expected);
        }