public void Test_Cipher_With_Negative_1_Shift()
{
sut = new ShiftCipher(-1);
Assert.AreEqual('Z', sut.Encipher('A'));
Assert.AreEqual('P', sut.Encipher('Q'));
Assert.AreEqual('Y', sut.Encipher('Z'));
}
public void Test_Cipher_With_11_Shift()
{
sut = new ShiftCipher(11);
Assert.AreEqual('L', sut.Encipher('A'));
Assert.AreEqual('A', sut.Encipher('P'));
Assert.AreEqual('K', sut.Encipher('Z'));
}
public void Test_Cipher_With_0_Shift()
{
sut = new ShiftCipher(0);
Assert.AreEqual('A', sut.Encipher('A'));
Assert.AreEqual('M', sut.Encipher('M'));
Assert.AreEqual('Z', sut.Encipher('Z'));
}
public void Test_Cipher_With_73_Shift()
{
// Cipher of 73 is a +21 Cipher
sut = new ShiftCipher(73);
Assert.AreEqual('V', sut.Encipher('A'));
Assert.AreEqual('B', sut.Encipher('G'));
Assert.AreEqual('S', sut.Encipher('X'));
}
public void Test_Cipher_With_26_Shift()
{
// Cipher of 26 is a 0 Cipher
sut = new ShiftCipher(26);
Assert.AreEqual('A', sut.Encipher('A'));
Assert.AreEqual('E', sut.Encipher('E'));
Assert.AreEqual('T', sut.Encipher('T'));
}
public void Test_Cipher_With_Negative_64_Shift()
{
// Cipher of -64 is a -12 Cipher is a +14 Cipher
sut = new ShiftCipher(-64);
Assert.AreEqual('O', sut.Encipher('A'));
Assert.AreEqual('S', sut.Encipher('E'));
Assert.AreEqual('H', sut.Encipher('T'));
}
public void Test_Cipher_With_Negative_15_Shift()
{
// Cipher of -15 is a +11 Cipher
sut = new ShiftCipher(-15);
Assert.AreEqual('L', sut.Encipher('A'));
Assert.AreEqual('P', sut.Encipher('E'));
Assert.AreEqual('E', sut.Encipher('T'));
}
public char Encipher(char input)
{
var encodedChar = shiftCipher1.Encipher(input);
encodedChar = substitutionCipher.Encipher(encodedChar);
return(shiftCipher2.Encipher(encodedChar));
}