### Question:
EnclaveKeySynchroniserFactory implements EnclaveKeySynchroniser { @Override public void syncKeys() { synchroniser.syncKeys(); } EnclaveKeySynchroniserFactory(); protected  EnclaveKeySynchroniserFactory(EnclaveKeySynchroniser synchroniser); static EnclaveKeySynchroniser provider(); @Override void syncKeys();  }### Answer:
@Test public void testCallToDelegate() { EnclaveKeySynchroniser enclaveKeySynchroniser = mock(EnclaveKeySynchroniser.class); EnclaveKeySynchroniserFactory enclaveKeySynchroniserFactory = new EnclaveKeySynchroniserFactory(enclaveKeySynchroniser); enclaveKeySynchroniserFactory.syncKeys(); verify(enclaveKeySynchroniser).syncKeys(); }