### Question:
DashOTransformer implements Transformer { public static String decrypt(String input) { if (isEmpty(input)) { return input; } char[] inputChars = input.toCharArray(); int length = inputChars.length; char[] inputCharsCopy = new char[length]; int j = 0; int i = 0; while (j < length) { inputCharsCopy[j] = ((char) (inputChars[j] - '\1' ^ i)); i = (char) (i + 1); j++; } return new String(inputCharsCopy); } DashOTransformer(String jarfile); static String decrypt(String input); void setDecryptor(); void removeStringEncryption(); void dumpJar(String path); void transform();  }### Answer:
@Test(dataProvider = "inputData") public void testDecrypt(String input, String outputExpected) throws Exception { final String outputActual = DashOTransformer.decrypt(input); assertEquals(outputActual, outputExpected); }