public void NullTests()
{
Assert.AreEqual(null, Kata.Encrypt(null, 0));
Assert.AreEqual(null, Kata.Decrypt(null, 0));
Assert.AreEqual(null, Kata.Decrypt(null, 5));
Assert.AreEqual(null, Kata.Encrypt(null, 5));
Assert.AreEqual(null, Kata.Encrypt(null, 0));
}
public void DecryptExampleTests()
{
Assert.AreEqual("This is a test!", Kata.Decrypt("This is a test!", 0));
Assert.AreEqual("This is a test!", Kata.Decrypt("hsi etTi sats!", 1));
Assert.AreEqual("This is a test!", Kata.Decrypt("s eT ashi tist!", 2));
Assert.AreEqual("This is a test!", Kata.Decrypt(" Tah itse sits!", 3));
Assert.AreEqual("This is a test!", Kata.Decrypt("This is a test!", 4));
Assert.AreEqual("This is a test!", Kata.Decrypt("This is a test!", -1));
Assert.AreEqual("This kata is very interesting!", Kata.Decrypt("hskt svr neetn!Ti aai eyitrsig", 1));
}
public void EmptyTests()
{
Assert.AreEqual("", Kata.Encrypt("", 0));
Assert.AreEqual("", Kata.Decrypt("", 0));
}