assertFalse(auth.isExpired());
    }

    /**
     * Test close() method
     */
    @Test
    @DisplayName("Test close() method properly wipes sensitive data")
    public void testCloseMethod() {
        NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("DOMAIN", "user", "CloseTestPass123!");

        assertFalse(auth.isClosed());
        assertEquals("CloseTestPass123!", auth.getPassword());