assertEquals(alsoRead, hasReadData, "FILE_READ_DATA flag presence should match alsoRead");
    }

    @Test
    @DisplayName("openCopyTargetFile retries after removing READONLY and succeeds")
    void openCopyTargetFile_retryOnReadonly_thenSuccess() throws Exception {
        // Arrange
        SmbFile dest = mock(SmbFile.class);
        SmbFileHandleImpl handle = mock(SmbFileHandleImpl.class);

            // Verify that no renewal happened
            assertFalse(renewed, "renewCredentials should return false if no renewal mechanism succeeds");
            assertEquals(mockCredentials, wrapper.getCredentials(), "Credentials should remain unchanged if no renewal mechanism succeeds");
            // Note: Credentials interface does not have renew() method
        }
    }

            TestCredentials creds = new TestCredentials("X", false, false, null, false);
            assertNull(creds.getSubject());
        }
    }

    @Test
    @DisplayName("refresh succeeds when not configured to fail")
    void refresh_success() throws Exception {
        TestCredentials creds = new TestCredentials("Z", false, false, new Subject(), false);
        // Should not throw

        // Mock transports
        SmbTransportImpl trans1 = mock(SmbTransportImpl.class);
        SmbTransportImpl trans2 = mock(SmbTransportImpl.class);

        // trans2 fails first (lower fail count, tried first), trans1 succeeds
        when(trans2.unwrap(SmbTransportImpl.class)).thenReturn(trans2);
        when(trans2.ensureConnected()).thenThrow(new IOException("Connection failed"));
        doNothing().when(trans2).close();

                            response.writeBytesWireFormat(buffer, 0);
                        }
                        success[index] = true;
                    } catch (Exception e) {
                        success[index] = false;
                    }
                });
            }

            // When
            for (Thread thread : threads) {

    }

    @Test
    @DisplayName("Iterator with filter throwing exception")
    void iteratorWithFilterException() throws Exception {
        // Setup: first attempt throws, second succeeds
        FileEntry entry1 = mock(FileEntry.class);
        FileEntry entry2 = mock(FileEntry.class);

        when(delegate.hasNext()).thenReturn(true, true, false);

    }

    @Test
    @DisplayName("verifyMIC delegates to GSS and succeeds")
    void verifyMIC_success() throws Exception {
        byte[] data = new byte[] { 1, 2 };
        byte[] mic = new byte[] { 3 };
        // No exception means success
        doNothing().when(gssContext).verifyMIC(eq(mic), eq(0), eq(1), eq(data), eq(0), eq(2), any());

    void testGetBatchLimitDefault() {
        DummyAndXBlock block = new DummyAndXBlock();
        assertEquals(0, block.getBatchLimit((byte) 0x25));
    }

    @Test
    @DisplayName("encode without andx succeeds and signs when digest present")
    void testEncodeNoAndxWithSigning() throws Exception {
        DummyAndXBlock block = new DummyAndXBlock();
        TestSigningDigest digest = new TestSigningDigest();

        // This tests that the implementation properly handles list modifications
        try {
            notifications.clear();
            // If this succeeds, the implementation allows modification
            assertTrue(notifications.isEmpty());
        } catch (UnsupportedOperationException e) {
            // If this throws, the implementation returned an immutable list

            netServerEnum2.writeParametersWireFormat(dst, 0);
        });
    }

    @Test
    @DisplayName("Test writeParametersWireFormat with large buffer succeeds")
    void testWriteParametersWireFormatLargeBuffer() {
        String domain = "DOMAIN";
        netServerEnum2 = new NetServerEnum2(realConfig, domain, NetServerEnum2.SV_TYPE_ALL);