### Question:
CSChannel extends BaseChannel { protected int getHeaderLength() { return 0; } CSChannel();  CSChannel(String host, int port, ISOPackager p);  CSChannel(ISOPackager p);  CSChannel(ISOPackager p, ServerSocket serverSocket); @Override void setConfiguration(Configuration cfg);  }### Answer:
@Test public void testGetHeaderLength() throws Throwable { CSChannel cSChannel = new CSChannel("testCSChannelHost", 100, new PostPackager()); int result = cSChannel.getHeaderLength(); assertEquals(0, result, "result"); }