public void TestChangePointOnComma()
 {
     RegExpr regularExp = new RegExpr();
     string inputString = "Фдыфвлопаыфлоа, dakjgfkdajf, 45.15. 51.3 dkjfdfj.";
     string result = regularExp.ChangePointOnComma(inputString);
     string expected = "Фдыфвлопаыфлоа, dakjgfkdajf, 45,15. 51,3 dkjfdfj.";
     Assert.AreEqual(expected, result);
 }
        public void TestChangePointOnComma()
        {
            RegExpr regularExp  = new RegExpr();
            string  inputString = "Фдыфвлопаыфлоа, dakjgfkdajf, 45.15. 51.3 dkjfdfj.";
            string  result      = regularExp.ChangePointOnComma(inputString);
            string  expected    = "Фдыфвлопаыфлоа, dakjgfkdajf, 45,15. 51,3 dkjfdfj.";

            Assert.AreEqual(expected, result);
        }