// Then
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
    }

    @ParameterizedTest
    @ValueSource(ints = { NtStatus.NT_STATUS_SUCCESS, NtStatus.NT_STATUS_ACCESS_DENIED, NtStatus.NT_STATUS_OBJECT_NAME_NOT_FOUND,
            NtStatus.NT_STATUS_SHARING_VIOLATION, NtStatus.NT_STATUS_INVALID_PARAMETER })

    void zeroCodeMapsToZero() {
        // Act
        int actual = findNtStatusOrMinusOne(0x00000000);

        // Assert
        assertEquals(0x00000000, actual);
    }

    @ParameterizedTest
    @ValueSource(ints = { -1, 1, 0x00FFFF00, 0x0BADF00D })
    @DisplayName("Invalid or unknown DOS codes return not-found sentinel (-1)")
    void unknownCodesReturnMinusOne(int dosCode) {
        // Act

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
import com.google.common.primitives.Ints;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

        // Check information level
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0101, actualInfoLevel);
    }

    @ParameterizedTest
    @ValueSource(ints = { -1, 0, 100, 255, Integer.MAX_VALUE })
    void testMapInformationLevelWithUnsupportedLevels(int level) {
        if (level == FileInformation.FILE_BASIC_INFO || level == FileInformation.FILE_STANDARD_INFO

        assertEquals("Payload exceeds buffer size", exception.getMessage());
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 10, 100, 500, 1024 })
    void testReadDataWireFormatVariousSizes(int dataSize) throws SMBProtocolDecodingException {
        // Test with various data sizes within buffer limit

        // Valid inputs: each known code must map to its documented message
        assertEquals(expectedMessage, lookupMessage(code).orElse(null));
    }

    @ParameterizedTest
    @ValueSource(ints = { -1, Integer.MIN_VALUE, Integer.MAX_VALUE })
    @DisplayName("Unknown codes: lookup returns empty Optional")
    void lookup_returns_empty_for_unknown_codes(int unknownCode) {

            0x00001040, 0x00001040, 0x00040040, 0x10000000, 0x10041000 };

    /// Squash bytes down to ints.
    /**
     * Converts bytes to integers for internal DES processing
     * @param inBytes the input byte array
     * @param inOff the offset into the input array
     * @param outInts the output integer array

    void testDefaultFlags() {
        assertEquals(0, msg.getFlags(), "Initial flags should be 0");
    }

    @ParameterizedTest(name = "setFlags({0}) ➜ getFlags() == {0}")
    @ValueSource(ints = { 0x0, 0x1, 0x2, 0xFFFFFFFF, -123456 })
    void testSetAndGetFlags(int value) {
        msg.setFlags(value);
        assertEquals(value, msg.getFlags(), "getFlags should return the value set");
    }

    @Test

        assertFalse(result, "Verify should return false for invalid signature");
        verify(signingDigest, times(1)).verify(testData, offset, length, extraPad, message);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 2, 4, 8, 16 })
    @DisplayName("Test verify method with different extra padding values")
    void testVerifyWithDifferentExtraPadding(int extraPad) {
        // Arrange
        int offset = 0;

        assertEquals(0, bytesRead);
        assertEquals(0, response.getAttributes());
        assertEquals(0, response.getSize());
    }

    @ParameterizedTest
    @ValueSource(ints = { 0x0001, 0x0002, 0x0004, 0x0010, 0x0020, 0x0080, 0x0100 })
    void testDifferentFileAttributes(int fileAttribute) {
        // Test various file attribute values