public void TestFindSecondLine()
        {
            var array = new ArrayList { "line first", "line second after", "line third" };

            var result = array.Containing("second");

            Assert.AreEqual("line second after", result);
        }
        public void TestFindFirstLineFromIndex()
        {
            var array = new ArrayList { "line first data", "line second data", "line first but third data" };

            var result = array.Containing("first", 1);

            Assert.AreEqual("line first but third data", result);
        }
        public void TestFindThirdLineNotFound()
        {
            var array = new ArrayList { "line first", "line second" };

            var result = array.Containing("third");

            Assert.AreEqual(string.Empty, result);
        }