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

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;

import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
import com.google.common.primitives.Ints;
import com.google.common.testing.EqualsTester;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.Random;
import java.util.Set;

    }

    // Parameterized: exercise small variations of cache size for a simple reuse cycle
    @ParameterizedTest
    @ValueSource(ints = { 1, 2 })
    @DisplayName("Parameterized: buffer reuse works for various small cache sizes")
    void reuseWorksForVariousCacheSizes(int cacheSize) {
        BufferCacheImpl impl = new BufferCacheImpl(cacheSize, 6);

 * <i>unsigned</i> (that is, any negative value {@code x} is treated as the positive value {@code
 * 2^32 + x}). The methods for which signedness is not an issue are in {@link Ints}, as well as
 * signed versions of methods for which signedness is an issue.
 *
 * <p>In addition, this class provides several static methods for converting an {@code int} to a

     * CRC(A000A000A000...), CRC(0B000B000B...), CRC(00C000C000C...), CRC(000D000D000D...)
     * and then to XOR them together.  The strideTable enables us to hash an int followed by 12
     * zero bytes (3 ints), while the byteTable is for advancing one byte at a time.
     * This algorithm is due to the paper "Everything we know about CRC but [are] afraid to forget"
     * by Kadatch and Jenkins, 2010.
     */

    Crc32cHasher() {