@Test
public void testLargeFileRegionChunked() throws Exception {
EmbeddedChannel channel = new EmbeddedChannel(new HttpResponseEncoder());
HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
response.headers().set(HttpHeaderNames.TRANSFER_ENCODING, HttpHeaderValues.CHUNKED);
assertTrue(channel.writeOutbound(response));
ByteBuf buffer = channel.readOutbound();
assertEquals("HTTP/1.1 200 OK\r\n" + HttpHeaderNames.TRANSFER_ENCODING + ": " +
HttpHeaderValues.CHUNKED + "\r\n\r\n", buffer.toString(CharsetUtil.US_ASCII));