public void testCandidateVotesForSelfOnRequest() throws Throwable {
runOnServer(
() -> {
int self = serverState.getAddress().hashCode();
serverState.setTerm(2);
state.startElection();
assertEquals(serverState.getTerm(), 3L);
VoteRequest request =
VoteRequest.builder()
.withTerm(3)
.withCandidate(self)
.withLogIndex(0)
.withLogTerm(0)
.build();
VoteResponse response = state.vote(request).get();
assertEquals(response.status(), Response.Status.OK);
assertTrue(response.voted());
assertEquals(serverState.getTerm(), 3L);
assertEquals(serverState.getLastVotedFor(), self);
assertEquals(response.term(), 3L);
});
}
public void testCandidateRejectsVoteAndTransitionsOnTerm() throws Throwable {
runOnServer(
() -> {
int candidate =
serverState.getCluster().getActiveMembers().iterator().next().getAddress().hashCode();
serverState.setTerm(1);
append(2, 1);
state.startElection();
assertEquals(serverState.getTerm(), 2L);
VoteRequest request =
VoteRequest.builder()
.withTerm(3)
.withCandidate(candidate)
.withLogTerm(0)
.withLogIndex(0)
.build();
VoteResponse response = state.vote(request).get();
assertEquals(response.status(), Response.Status.OK);
assertFalse(response.voted());
assertEquals(serverState.getTerm(), 3L);
assertEquals(serverState.getLastVotedFor(), 0);
assertEquals(response.term(), 3L);
assertEquals(serverState.getState(), RaftServer.State.FOLLOWER);
});
}