response = new Smb2SetInfoResponse(mockConfig);
    }

    @Test
    @DisplayName("Test constructor initializes with config")
    void testConstructor() {
        assertNotNull(response);
        // Command is not set in constructor, only after decoding
        assertEquals((short) 0, response.getCommand());
    }

    @Test
    @DisplayName("Test writeBytesWireFormat returns 0")
    void testWriteBytesWireFormat() {

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

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

import jcifs.internal.smb2.lease.Smb2LeaseKey;
import jcifs.internal.smb2.lease.Smb2LeaseState;
import jcifs.internal.util.SMBUtil;

@DisplayName("LeaseV1CreateContextRequest Tests")
class LeaseV1CreateContextRequestTest {

        // Act
        out.close();

        // Assert
        verifyNoInteractions(handle);
    }

    @Nested
    @DisplayName("Constructor invalid inputs")
    class ConstructorInvalidInputs {
        @Test
        @DisplayName("Null handle triggers NullPointerException")
        void ctor_nullHandle_throwsNPE() {
            // Act + Assert

    private CIFSContext ctx() {
        return SingletonContext.getInstance();
    }

    @Nested
    @DisplayName("Constructor behavior")
    class ConstructorTests {

        @ParameterizedTest
        @DisplayName("Accepts IPC$ URLs (happy path)")
        @ValueSource(strings = { "smb://server/IPC$/foo", "smb://server/IPC$/PIPE/foo" })

        }

        @Test
        @DisplayName("getUserDomain: explicit realm overrides")
        void getUserDomain_fromExplicitRealm() {
            Kerb5Authenticator auth = new Kerb5Authenticator(new Subject());
            auth.setRealm("REALM.TEST");
            assertEquals("REALM.TEST", auth.getUserDomain());
        }

        @Test

    }

    @Test
    @DisplayName("DOS_ERROR_CODES is non‑null and non‑empty")
    void testCodesArrayExistence() {
        assertNotNull(DosError.DOS_ERROR_CODES, "DOS_ERROR_CODES should be non‑null");
        assertTrue(DosError.DOS_ERROR_CODES.length > 0, "DOS_ERROR_CODES should contain at least one mapping");
    }

    @Test
    @DisplayName("Each error code mapping contains exactly two ints")

        preauthIntegrityHash = new byte[64];
        Arrays.fill(preauthIntegrityHash, (byte) 0xBB);
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create digest for SMB 2.0.2 with HmacSHA256")
        void testConstructorSmb202() throws GeneralSecurityException {

        assertFalse(transport.isSMB2());
    }

    @Test
    @DisplayName("Digest setter/getter roundtrip")
    void digestRoundtrip() {
        SMBSigningDigest dg = mock(SMBSigningDigest.class);
        transport.setDigest(dg);
        assertSame(dg, transport.getDigest());
    }

    @Test
    @DisplayName("Context accessor returns constructor-provided context")
    void contextAccessor() {

    }

    @Test
    @DisplayName("Should correctly inherit from ServerMessageBlock2Request")
    void testInheritance() {
        // Then
        assertTrue(request instanceof ServerMessageBlock2Request);
        assertTrue(request instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Should handle different previous session IDs")

    }

    /**
     * All wire‑format methods should return zero regardless of inputs.
     */
    @Nested
    @DisplayName("Wire format method behaviour")
    class WireFormatMethods {
        @ParameterizedTest
        @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE })
        @DisplayName("writeSetupWireFormat returns 0 for all indices")
        void writeSetupWireFormatReturnsZero(int index) {