public void Substitution_cipher_can_wrap_on_decode()
{
var sut = new SimpleCipher("abcdefghij");
Assert.Equal("zzzzzzzzzz", sut.Decode("zabcdefghi"));
}
public void Random_key_cipher_can_decode()
{
var sut = new SimpleCipher();
Assert.Equal("aaaaaaaaaa", sut.Decode(sut.Key.Substring(0, 10)));
}
public void Substitution_cipher_is_reversible_i_e_if_you_apply_decode_in_a_encoded_result_you_must_see_the_same_plaintext_encode_parameter_as_a_result_of_the_decode_method()
{
var sut = new SimpleCipher("abcdefghij");
Assert.Equal("abcdefghij", sut.Decode(sut.Encode("abcdefghij")));
}
public void Substitution_cipher_can_decode_messages_longer_than_the_key()
{
var sut = new SimpleCipher("abc");
Assert.Equal("iamapandabear", sut.Decode("iboaqcnecbfcr"));
}