@Test
  public void shiftMulEncTest() throws IOException, InvalidEncryptionKeyException {
    // Encryption - ShiftMultiplyEncryption
    doubleEncryption.setAlgorithem(alg2);

    doubleEncryption.encryptFile(TEST_INPUT3, TEST_OUT_PATH, TEST_KEY2);
    String expected = fs.readFile(TEST_OUT_PATH);
    String actual = TI4;

    assertEquals(expected, actual);
  }