assertNull(transport.getSmbSession((jcifs.CIFSContext) null));
        verify(transport).getSmbSession((jcifs.CIFSContext) isNull());
    }

    // Happy path: session retrieval with host/domain variations
    @ParameterizedTest
    @DisplayName("getSmbSession(ctx,host,domain) returns session for various inputs")
    @CsvSource({ "server,DOMAIN", "server,", ",DOMAIN", "," })

        // Authenticator should be closed
        assertTrue(auth.isClosed());
    }

    /**
     * Test password security with char array constructor variations
     */
    @Test
    @DisplayName("Test all char array constructor variations")
    public void testCharArrayConstructorVariations() {
        // Test with domain, username, password, and type
        char[] password1 = "TypedPass123!".toCharArray();

public class NtlmPasswordAuthenticatorTimingAttackTest {

    private static final int TIMING_ITERATIONS = 1000;
    private static final double TIMING_TOLERANCE = 2.0; // 200% tolerance - JVM timing is inherently variable for timing variations

    @BeforeEach
    public void setUp() {
        // Warm up JVM to reduce JIT compilation effects
        for (int i = 0; i < 100; i++) {

String[] tags = new String[]{"technology", "search"};
String[] roles = new String[]{"admin", "user"};

SuggestItem item = new SuggestItem(
    new String[]{"Search Engine", "検索エンジン"}, // text variations
    readings,                                      // pronunciation readings
    1,                                            // boost score
    tags,                                         // categorization tags

        assertEquals(longNameStr, testTransformer.getName());
        assertEquals(120000, testTransformer.getName().length());
    }

    /**
     * Test name with whitespace variations
     */
    public void test_name_whitespace() {
        // Leading whitespace
        testTransformer.setName("  leadingSpaces");
        assertEquals("  leadingSpaces", testTransformer.getName());

        ServerResponseValidator.ValidationStats stats = validator.getStats();
        assertEquals(0, stats.getTotalValidations());
        assertEquals(0, stats.getFailedValidations());

        // Perform some validations
        try {
            validator.validateBuffer(new byte[100], 50, 200);
        } catch (SmbException e) {
            // Ignore
        }

        try {