public void ConvertFrequencyFromCaseflowTest()
        {
            Assert.AreEqual(string.Empty, _helper.ConvertFrequencyFromCaseflow(null));
            Assert.AreEqual(string.Empty, _helper.ConvertFrequencyFromCaseflow(""));
            Assert.AreEqual(string.Empty, _helper.ConvertFrequencyFromCaseflow("testing..."));

            Assert.AreEqual("monthly", _helper.ConvertFrequencyFromCaseflow("M"));
            Assert.AreEqual("weekly", _helper.ConvertFrequencyFromCaseflow("W"));
            Assert.AreEqual("fortnightly", _helper.ConvertFrequencyFromCaseflow("F"));
            Assert.AreEqual("4week", _helper.ConvertFrequencyFromCaseflow("4"));
            Assert.AreEqual("Quarterly", _helper.ConvertFrequencyFromCaseflow("Q"));
            Assert.AreEqual("Last Day of the Month", _helper.ConvertFrequencyFromCaseflow("L"));
            Assert.AreEqual("Annually", _helper.ConvertFrequencyFromCaseflow("A"));

            Assert.AreEqual("monthly", _helper.ConvertFrequencyFromCaseflow("m"));
            Assert.AreEqual("weekly", _helper.ConvertFrequencyFromCaseflow("w"));
            Assert.AreEqual("fortnightly", _helper.ConvertFrequencyFromCaseflow("f"));
            Assert.AreEqual("4week", _helper.ConvertFrequencyFromCaseflow("4"));
            Assert.AreEqual("Quarterly", _helper.ConvertFrequencyFromCaseflow("q"));
            Assert.AreEqual("Last Day of the Month", _helper.ConvertFrequencyFromCaseflow("l"));
            Assert.AreEqual("Annually", _helper.ConvertFrequencyFromCaseflow("a"));
        }