public void EncodeStringTest()
{
string decodedString = Convert.ToString(TestContext.DataRow["decodedString"]);
int numberOfRails = Convert.ToInt32(TestContext.DataRow["numberOfRails"]);
string expectedResult = Convert.ToString(TestContext.DataRow["encodedString"]);
string actualResult = RailFenceCipher.EncodeString(decodedString, numberOfRails);
Assert.AreEqual(expectedResult, actualResult, "expected and actual results are not equal.\ndecodedString = " + decodedString + "\nnumberOfRails = " + numberOfRails);
}