public void CleanStringBeforeTest()
        {
            string s        = "asdf;lkjre/http://www.yahoo.com";
            string tk       = "http:";
            string expected = "http://www.yahoo.com";
            string actual;

            actual = CoreExtensions.CleanStringBefore(s, tk);
            Assert.AreEqual(expected, actual);

            s = "http://www.yahoo.com";
            Assert.AreEqual(expected, actual);
        }