public String readStringLenenc() {
        return new String(readStringLenencByBytes(), charset);
    }
@Test
    void assertReadStringLenenc() {
        when(byteBuf.readUnsignedByte()).thenReturn((short) 0);
        assertThat(new MySQLPacketPayload(byteBuf, StandardCharsets.UTF_8).readStringLenenc(), is(""));
    }