@Test
public void testMessageReceivedDelimiterFrame() throws Exception {
final ChannelBuffer buf = ChannelBuffers.copiedBuffer("<45>", Charsets.UTF_8);
when(event.getMessage()).thenReturn(buf);
handler.handleUpstream(context, event);
handler.handleUpstream(context, event);
handler.handleUpstream(context, event);
// Only add the decoder once!
verify(pipeline, times(1))
.addAfter(eq("current"), eq("framer-delimiter"), any(DelimiterBasedFrameDecoder.class));
verify(context, times(3)).sendUpstream(event);
// Make sure the buffer does not get mutated.
assertEquals(buf.toString(Charsets.UTF_8), "<45>");
}
@Test
public void testMessageReceivedWithEmptyBuffer() throws Exception {
final ChannelBuffer buf = ChannelBuffers.copiedBuffer("", Charsets.UTF_8);
when(event.getMessage()).thenReturn(buf);
handler.handleUpstream(context, event);
verify(pipeline, never())
.addAfter(eq("current"), eq("framer-octet"), any(SyslogOctetCountFrameDecoder.class));
verify(pipeline, never())
.addAfter(eq("current"), eq("framer-delimiter"), any(DelimiterBasedFrameDecoder.class));
verify(context, never()).sendUpstream(event);
}