* with different kinds of inputs.  Many static helpers in {@code
 * UniAddress} are network dependent and therefore not exercised here – they
 * would require complex stubbing of static methods.  Instead the tests
 * concentrate on the instance methods and simple static predicates
 * that are observable without network access.
 */
@ExtendWith(MockitoExtension.class)
class UniAddressTest {

        jcifs.SmbTransport mock = mock(jcifs.SmbTransport.class);
        // Stub the getRemoteHostName method
        when(mock.getRemoteHostName()).thenReturn("test-host");
        // Verify the stubbing
        assertEquals("test-host", mock.getRemoteHostName());
        // Ensure that the mock was interacted with
        verify(mock).getRemoteHostName();
    }

        // Then
        assertNotNull(mockRequest, "Mock should be created successfully");
    }

    @Test
    @DisplayName("Test default behavior of mock without stubbing")
    void testDefaultBehaviorOfMock() {
        // Given
        SmbNegotiationRequest mockRequest = mock(SmbNegotiationRequest.class);

        // When
        boolean result = mockRequest.isSigningEnforced();

    private static final String TEST_SERVER = "server";
    private static final String TEST_ENDPOINT = "\\pipe\\test";

    @BeforeEach
    void setUp() throws IOException {
        // Setup mock behavior with lenient stubbing to avoid UnnecessaryStubbingException
        lenient().when(mockSmbNamedPipe.openPipe()).thenReturn(mockSmbPipeHandle);

    void setUp() throws Exception {
        witnessServer = InetAddress.getByName("192.168.1.200");
        serverAddress = InetAddress.getByName("192.168.1.100");

        // Setup mock configuration with lenient stubbing
        lenient().when(mockContext.getConfig()).thenReturn(mockConfig);
        lenient().when(mockConfig.getWitnessHeartbeatTimeout()).thenReturn(120000L);

import java.net.MalformedURLException;
import java.net.UnknownHostException;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

class SmbRandomAccessFileTest {

    private SmbFile smbFile;
    private SmbTree smbTree;
    private SmbSession smbSession;
    private SmbTransport smbTransport;

    @BeforeEach
    void setUp() throws Exception {
        mockService = new MockWitnessService();
        mockService.start();

        // Setup mock configuration with lenient stubbing
        lenient().when(mockContext.getConfig()).thenReturn(mockConfig);
        lenient().when(mockConfig.isUseWitness()).thenReturn(true);
        lenient().when(mockConfig.getWitnessHeartbeatTimeout()).thenReturn(120000L);

            // These methods do not throw and allow interaction checks.
            tc.getConfig();
            tc.getCredentials();

            // Minimal behavior: return a mock SSPContext with lenient stubbing
            SSPContext ctx = mock(SSPContext.class);
            lenient().when(ctx.isEstablished()).thenReturn(false);
            return ctx;
        }

        @Override
        public Subject getSubject() {

    @Test
    @DisplayName("renew: invokes getSubject and returns self")
    void testRenewInvokesGetSubjectAndReturnsSelf() {
        JAASAuthenticator auth = spy(new JAASAuthenticator());
        // Avoid real JAAS by stubbing getSubject
        doReturn(new Subject()).when(auth).getSubject();

        // Act
        CredentialsInternal result = auth.renew();

        // Assert interaction and return value

        FileEntry e = null;
        // Act & Assert: demonstrate invalid usage results in NPE
        assertThrows(NullPointerException.class, () -> e.getName());
    }

    @Nested
    @DisplayName("Mockito stubbing for edge cases")
    class MockitoEdgeCases {
        @Test
        @DisplayName("getName can return null and empty strings via mock")
        void mock_nameEdgeValues() {
            // Arrange