assertEquals(0x1234, ServerMessageBlock.readInt2(buffer, 0));
    }

    @Test
    void testInt4ReadWrite() {
        byte[] buffer = new byte[4];
        ServerMessageBlock.writeInt4(0x12345678, buffer, 0);
        assertEquals(0x12345678, ServerMessageBlock.readInt4(buffer, 0));
    }

    @Test
    void testInt8ReadWrite() {
        byte[] buffer = new byte[8];
        long value = 0x123456789ABCDEF0L;

  // Inputs and their statistics:

  static final double ONE_VALUE = 12.34;

  static final double OTHER_ONE_VALUE = -56.78;

  static final ImmutableList<Double> TWO_VALUES = ImmutableList.of(12.34, -56.78);
  static final double TWO_VALUES_MEAN = (12.34 - 56.78) / 2;
  static final double TWO_VALUES_SUM_OF_SQUARES_OF_DELTAS =
      (12.34 - TWO_VALUES_MEAN) * (12.34 - TWO_VALUES_MEAN)

    }

    @Test
    @DisplayName("getPipe, getPipeType, getUncPath delegate to underlying pipe")
    void testBasicAccessors() {
        when(pipe.getPipeType()).thenReturn(0x123456);
        assertSame(pipe, target.getPipe());
        assertEquals(0x123456, target.getPipeType());
        assertEquals("\\\\pipe\\\\my-pipe", target.getUncPath());
    }

    @Test

     */
    @Test
    public void testIsNumver() throws Exception {
        assertFalse(StringUtil.isNumber(null));
        assertTrue(StringUtil.isNumber("0123456789"));
        assertFalse(StringUtil.isNumber("aaaBBBccc"));
        assertFalse(StringUtil.isNumber("０１２３４５６７８９"));
        assertFalse(StringUtil.isNumber(""));
        assertFalse(StringUtil.isNumber("01234abcdef"));
        assertFalse(StringUtil.isNumber("abcdef01234"));

        serverData.encryptedPasswords = true;
        serverData.encryptionKey = new byte[8];

        // Configure mock transport
        mockTransport.server = serverData;
        mockTransport.sessionKey = 0x12345678;
        mockTransport.capabilities = SmbConstants.CAP_UNICODE | SmbConstants.CAP_NT_SMBS;
        mockTransport.snd_buf_size = 16644;
        mockTransport.maxMpxCount = 50;

        // Configure mock session

    }

    @Test
    @DisplayName("Test parameter wire format structure")
    void testParameterWireFormatStructure() {
        querySecurityDesc = new NtTransQuerySecurityDesc(mockConfig, 0xABCD, 0x12345678);
        byte[] dst = new byte[100];

        int bytesWritten = querySecurityDesc.writeParametersWireFormat(dst, 10);

        // Verify structure:
        // Offset 0-1: FID (2 bytes)

    }

    /**
     * Test constructor with integer flags.
     */
    @Test
    void testAvFlagsIntConstructor() {
        // Test with a positive integer
        int flags = 0x12345678;
        AvFlags avFlags = new AvFlags(flags);
        assertNotNull(avFlags, "AvFlags object should not be null");
        assertEquals(flags, avFlags.getFlags(), "Flags should match the input integer");

import java.net.URL;

import org.codelibs.core.net.URLUtil;
import org.junit.Test;

/**
 * @author koichik
 */
public class CopyUtilTest {

    static byte[] srcBytes = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

    static String srcString = "ABCDEFGHIJKLMN";

    static String urlString = "あいうえお";

    InputStream is = new ByteArrayInputStream(srcBytes);

    }

    // Edge/null/empty: message-only constructor should propagate message and set unsuccessful status
    @ParameterizedTest
    @NullSource
    @ValueSource(strings = { "", " ", "simple", "with unicode Ω≈ç√", "long-0123456789-abcdefghijklmnopqrstuvwxyz" })
    @DisplayName("Message-only ctor: propagates message and unsuccessful status")
    void messageOnlyConstructor_setsMessage_andUnsuccessfulStatus(String msg) {
        // Arrange & Act

    }

    @Test
    @DisplayName("writeInt4 should correctly write 32-bit integer")
    void testWriteInt4() {
        byte[] dst = new byte[8];
        SessionServicePacket.writeInt4(0x12345678, dst, 0);

        assertEquals((byte) 0x12, dst[0]);
        assertEquals((byte) 0x34, dst[1]);
        assertEquals((byte) 0x56, dst[2]);
        assertEquals((byte) 0x78, dst[3]);
    }