public void Parse_WhenCalledWithValues_ReturnsLowerCaseValues()
{
const string Value1 = "VALUE1";
const string Value2 = "Value2";
const string Value3 = "vaLUE3";
var sut = GetSubjectUnderTest();
var results = sut.Parse(new string[] { Value1, Value2, Value3 });
Assert.AreEqual(3, results.Count);
Assert.AreEqual(Value1.ToLowerInvariant(), results[0]);
Assert.AreEqual(Value2.ToLowerInvariant(), results[1]);
Assert.AreEqual(Value3.ToLowerInvariant(), results[2]);
}