@Test
public void testRemoveTransferEncodingIgnoreCase() {

    HttpMessage message = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    message.headers().set(HttpHeaderNames.TRANSFER_ENCODING, "Chunked");
    assertFalse(message.headers().isEmpty());
    HttpUtil.setTransferEncodingChunked(message, false);
    assertTrue(message.headers().isEmpty());
}