assertEquals("remove", ex.getMessage());
    }

    @Nested
    @DisplayName("Invalid constructor inputs")
    class InvalidInputs {
        @Test
        @DisplayName("Null delegate causes NullPointerException during construction")
        void nullDelegate_throwsNPE() throws Exception {
            SmbFile parent = newParent();

    }

    @Test
    @DisplayName("getResponse before initResponse returns null")
    void getResponseInitiallyNull() {
        SmbComNTCreateAndX req = createRequest(0, 0);
        assertNull(req.getResponse(), "Before init, response is null");
    }

    @Test
    @DisplayName("toString representation contains expected fields")
    void toStringContainsKeyData() {

        }
    }

    @Test
    @DisplayName("Default state is null for both fields")
    void defaultStateIsNull() {
        TestSpnegoToken t = new TestSpnegoToken();
        assertNull(t.getMechanismToken(), "mechanismToken should default to null");
        assertNull(t.getMechanismListMIC(), "mechanismListMIC should default to null");
    }

    @Test
    @DisplayName("Setter and getter for mechanismToken work")

    @Nested
    class InvalidConstruction {
        @Test
        @DisplayName("Negative maxBuffers throws immediately in constructor")
        void negativeMaxBuffersThrows() {
            assertThrows(NegativeArraySizeException.class, () -> new BufferCacheImpl(-1, 10));
        }

        @Test
        @DisplayName("Negative maxSize throws when allocating a new buffer")

        }
    }

    @Test
    @DisplayName("getDefaultPort returns SMB default port 445")
    void testGetDefaultPort() {
        // Act
        int port = handler.getDefaultPort();

        // Assert
        assertEquals(445, port);
        assertEquals(SmbConstants.DEFAULT_PORT, port);
    }

    @Test
    @DisplayName("openConnection creates SmbFile for valid URL")

import java.nio.charset.StandardCharsets;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.internal.util.SMBUtil;

/**
 * Test class for FsctlPipeWaitRequest
 */
class FsctlPipeWaitRequestTest {

    @Test
    @DisplayName("Test constructor with name only sets correct fields")

                        "Expected invalid list operation message, was: " + ex.getMessage());
            }
        }
    }

    @Nested
    @DisplayName("Master browser enumeration tests")
    class MasterBrowserEnumerationTests {

        @Test
        @DisplayName("doEnum with empty host throws SmbUnsupportedOperationException when master browser not found")

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * Test class for SrvPipePeekResponse

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertSame;

import java.util.Arrays;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * Test class for ValidateNegotiateInfoResponse
 */

import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import java.lang.reflect.Field;
import java.util.stream.Stream;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;