final CharsetDecoder decoder = Consts.UTF_8.newDecoder();
decoder.onMalformedInput(CodingErrorAction.REPLACE);
decoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
final SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, decoder, this.allocator);
final ReadableByteChannel channel = newChannel(tmp);
while (inbuf.fill(channel) > 0) {
}
final String result = inbuf.readLine(true);
Assert.assertEquals("Gr\ufffdezi_z\ufffdm\ufffd", result);
}