doNothing().when(raf).write(any(byte[].class), anyInt(), anyInt());

        raf.writeBytes("hi");
        raf.writeChars("yo");

        verify(raf).write(any(byte[].class), eq(0), eq(2)); // bytes
        verify(raf).write(any(byte[].class), eq(0), eq(4)); // chars
    }

    @Test
    @DisplayName("writeUTF(): prefixes size and writes encoded bytes")

// MarshalMsg implements msgp.Marshaler
func (z rebalanceMetrics) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 0
	_ = z
	o = append(o, 0x80)
	return
}

// UnmarshalMsg implements msgp.Unmarshaler
func (z *rebalanceMetrics) UnmarshalMsg(bts []byte) (o []byte, err error) {
	var field []byte
	_ = field
	var zb0001 uint32

        byte[] dst = new byte[2];
        int written = neg.writeParameterWordsWireFormat(dst, 0);
        assertEquals(2, written);
        assertArrayEquals(new byte[] { (byte) 0xFF, (byte) 0xFF }, dst, "Negative sid should wrap to 0xFFFF");
    }

    @Test
    void testWriteParameterWordsWithOffset() {
        byte[] dst = new byte[5];

        // padding is alwas binary 1 followed by binary 0s
        final byte[] tail = new byte[padLen + 8];
        tail[0] = (byte) 0x80;

        // append length before final transform:
        // save number of bits, casting the long to an array of 8 bytes
        // save low-order byte first.
        for (int i = 0; i < 8; i++) {
            tail[padLen + i] = (byte) (count * 8 >>> 8 * i);
        }

            // Given
            byte[] originalBuffer = new byte[100];
            for (int i = 0; i < originalBuffer.length; i++) {
                originalBuffer[i] = (byte) i;
            }
            byte[] buffer = originalBuffer.clone();

            // When
            Method readParams = SmbComNtCancel.class.getDeclaredMethod("readParameterWordsWireFormat", byte[].class, int.class);

        // Calculate hash
        Method calcMethod = findMethod(transport.getClass(), "calculatePreauthHash", byte[].class, int.class, int.class, byte[].class);
        calcMethod.setAccessible(true);

        byte[] input = "test data".getBytes();
        byte[] oldHash = new byte[64];

        byte[] newHash = (byte[]) calcMethod.invoke(transport, input, 0, input.length, oldHash);

        assertNotNull(newHash);

        // Add some dummy security data at offset 64 from start
        buffer[64] = (byte) 0x4E; // NTLMSSP signature start
        buffer[65] = (byte) 0x54;
        buffer[66] = (byte) 0x4C;
        buffer[67] = (byte) 0x4D;
        buffer[68] = (byte) 0x53;
        buffer[69] = (byte) 0x53;
        buffer[70] = (byte) 0x50;
        buffer[71] = (byte) 0x00;

        return buffer;
    }

	var headerTests = []struct {
		name    string
		extra   []byte
		wanterr error
	}{
		{
			name:    strings.Repeat("x", 1<<16),
			extra:   []byte{},
			wanterr: errLongName,
		},
		{
			name:    "long_extra",
			extra:   bytes.Repeat([]byte{0xff}, 1<<16),
			wanterr: errLongExtra,
		},
	}

	// write a zip file
	buf := new(bytes.Buffer)
	w := NewWriter(buf)

        return Stream.of(Arguments.of(new byte[] {}, ""), Arguments.of(new byte[] { (byte) 0x00 }, "00"),
                Arguments.of(new byte[] { (byte) 0x0F }, "0f"), Arguments.of(new byte[] { (byte) 0x10 }, "10"),
                Arguments.of(new byte[] { (byte) 0xAB }, "ab"),
                Arguments.of(new byte[] { (byte) 0x7F, (byte) 0x80, (byte) 0xFF }, "7f80ff"));
    }

        assertEquals((byte) 0xEF, buffer[0]); // Little-endian
        assertEquals((byte) 0xCD, buffer[1]);
        assertEquals((byte) 0xAB, buffer[2]);
        assertEquals((byte) 0x89, buffer[3]);
        assertEquals((byte) 0x67, buffer[4]);
        assertEquals((byte) 0x45, buffer[5]);
        assertEquals((byte) 0x23, buffer[6]);
        assertEquals((byte) 0x01, buffer[7]);