import (
	"bufio"
	"bytes"
	"fmt"
	"io"
	"sync/atomic"
	"testing"
)

var (
	smallInput  = make([]byte, 1024*12)       // 12K
	mediumInput = make([]byte, 1024*1024*12)  // 12MB
	largeInput  = make([]byte, 1024*1024*128) // 128MB
)

func TestScanner(t *testing.T) {
	t.Skip("Unstable test")
	data := []byte("abcdefghijklmnopqrstuvwxyz0123456789")

	var i int
	r := bytes.NewReader(data)
	scanner := newScanner(r)

        String sessionId = "test-session-2";
        byte[] salt = preauthService.generatePreauthSalt();

        preauthService.initializeSession(sessionId, salt, PreauthIntegrityService.HASH_ALGO_SHA512);

        byte[] initialHash = preauthService.getCurrentPreauthHash(sessionId);
        assertNotNull(initialHash);

        // Update with negotiate message
        byte[] negotiateMessage = "SMB2 Negotiate Request".getBytes();

        trans2FindFirst2 = new Trans2FindFirst2(mockConfig, "\\test", "*.*", 0x16, 10, 1024);

        byte[] buffer = new byte[10];
        int written = trans2FindFirst2.writeSetupWireFormat(buffer, 0);

        assertEquals(2, written);
        assertEquals((byte) Trans2FindFirst2.TRANS2_FIND_FIRST2, buffer[0]);
        assertEquals((byte) 0x00, buffer[1]);
    }

    @Test
    @DisplayName("Test writeParametersWireFormat")

        when(mockFileInfo.getFileInformationLevel()).thenReturn((byte) FileInformation.FILE_BASIC_INFO);
        when(mockFileInfo.encode(any(byte[].class), anyInt())).thenReturn(50);

        trans2SetFileInfo = new Trans2SetFileInformation(config, TEST_FID, mockFileInfo);

        byte[] setupBuffer = new byte[256];
        byte[] paramBuffer = new byte[256];
        byte[] dataBuffer = new byte[256];

        int offset = 10;
        byte[] buffer = new byte[34]; // 10 offset + 16 header + 8 data
        int bufferIndex = offset;

        // Set up test values
        int namedPipeState = 0x02;
        int readDataAvailable = 256;
        int numberOfMessages = 5;
        int messageLength = 128;
        byte[] testData = { (byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC, (byte) 0xBB, (byte) 0xAA, (byte) 0x99, (byte) 0x88 };

	testCases := []struct {
		data           []byte
		expectedResult *FilterRule
		expectErr      bool
	}{
		{[]byte(`<FilterRule></FilterRule>`), nil, true},
		{[]byte(`<FilterRule><Name></Name></FilterRule>`), nil, true},
		{[]byte(`<FilterRule><Value></Value></FilterRule>`), nil, true},
		{[]byte(`<FilterRule><Name></Name><Value></Value></FilterRule>`), nil, true},

     */
    public HandleGuid(UUID uuid) {
        this.guid = uuid;
    }

    /**
     * Convert the GUID to byte array for wire format (little-endian as per MS-SMB2)
     * @return 16-byte array representing the GUID in SMB wire format
     */
    public byte[] toBytes() {
        byte[] result = new byte[16];
        ByteBuffer bb = ByteBuffer.wrap(result).order(java.nio.ByteOrder.LITTLE_ENDIAN);

        // Tag [1] IMPLICIT, content is 0x01 0x02 0x03
        byte[] data = new byte[] { (byte) 0xA1, 0x03, 0x01, 0x02, 0x03 };
        ByteArrayInputStream bais = new ByteArrayInputStream(data);
        ASN1InputStream ais = new ASN1InputStream(bais);
        byte[] result = ASN1Util.readUnparsedTagged(1, 10, ais);
        assertArrayEquals(new byte[] { 0x01, 0x02, 0x03 }, result);
    }

    @Test

        byte[] encodeBuffer = new byte[1024];
        NdrBuffer dst = new NdrBuffer(encodeBuffer, 0);
        enumEx.encode_in(dst);

        // Simulate decode_out with null info and totalentries
        netdfs.NetrDfsEnumEx decodedEnumEx = new netdfs.NetrDfsEnumEx(null, 0, 0, null, null);

        // Manually encode the expected output for decode_out
        byte[] encodeBufferOut2 = new byte[1024];

     * {@link NtTransQuerySecurityDesc#writeParametersWireFormat(byte[], int)}.
     */
    private static byte[] expectedParameters(int fid, int securityInformation) {
        ByteBuffer bb = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
        bb.putShort((short) fid);
        bb.put((byte) 0x00); // Reserved
        bb.put((byte) 0x00); // Reserved
        bb.putInt(securityInformation);
        return bb.array();