### Question:
DirectoryUserTotp { public int getDigits() { return digits; } DirectoryUserTotp(String secret, String algorithm, int period, int digits); String getSecret(); String getAlgorithm(); int getDigits(); int getPeriod(); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString();  }### Answer:
@Test public void testGetDigits() { assertEquals(4321, model.getDigits()); }