### Question:
StatelessMessageSequenceProvider implements MessageSequenceProvider { @Override public int getMsgInSeqNum() { return 1; } private  StatelessMessageSequenceProvider(); static StatelessMessageSequenceProvider getInstance(); @Override int getMsgOutSeqNum(); @Override int getMsgInSeqNum();  }### Answer:
@Test public void testGetMsgInSeqNum() { assertEquals(1, SEQUENCE_PROVIDER.getMsgOutSeqNum()); }