public void OneValueCreatesNoPipeFromStringEnumerable()
        {
            var strings = new [] { "a" };

            var result = strings.ToPipeDelimitedString();

            Assert.Equal("a", result);
        }
        public void CanCreatePipeDelimitedListFromStringEnumerable()
        {
            var strings = new [] { "a", "b", "c"};

            var result = strings.ToPipeDelimitedString();

            Assert.Equal("a|b|c", result);
        }