Arrays.fill(testPassword, 'Y');
        assertEquals("CharArrayPass789!", auth.getPassword());
    }

    /**
     * Test domain constructor with char array
     */
    @Test
    public void testDomainCharArrayConstructor() {
        char[] testPassword = "DomainPass321!".toCharArray();
        NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("DOMAIN", "testuser", testPassword);