### Question:
NettyTsiHandshaker { boolean isInProgress() { return internalHandshaker.isInProgress(); } NettyTsiHandshaker(TsiHandshaker handshaker);   }### Answer:
@Test public void isInProgress() throws GeneralSecurityException { assertTrue(clientHandshaker.isInProgress()); assertTrue(serverHandshaker.isInProgress()); doHandshake(); assertFalse(clientHandshaker.isInProgress()); assertFalse(serverHandshaker.isInProgress()); }