Examples with Outcome org.neo4j.causalclustering.core.consensus.outcome.Outcome used on opensource projects

Example 21 with Outcome

use of org.neo4j.causalclustering.core.consensus.outcome.Outcome in project neo4j by neo4j.

the class VoteRequestTest method shouldUpdateTermIfRequestIsFromLaterTerm.

@Test
public void shouldUpdateTermIfRequestIsFromLaterTerm() throws Exception {
    // given
    RaftState state = newState();
    // when
    final long candidateTerm = state.term() + 1;
    Outcome outcome = role.handler.handle(voteRequest().from(member1).term(candidateTerm).lastLogIndex(0).lastLogTerm(-1).build(), state, log());
    // then
    assertEquals(candidateTerm, outcome.getTerm());
}

Example 22 with Outcome

use of org.neo4j.causalclustering.core.consensus.outcome.Outcome in project neo4j by neo4j.

the class VoteRequestTest method shouldMoveToFollowerIfRequestIsFromLaterTerm.

@Test
public void shouldMoveToFollowerIfRequestIsFromLaterTerm() throws Exception {
    // given
    RaftState state = newState();
    // when
    final long candidateTerm = state.term() + 1;
    Outcome outcome = role.handler.handle(voteRequest().from(member1).term(candidateTerm).lastLogIndex(0).lastLogTerm(-1).build(), state, log());
    // then
    assertEquals(Role.FOLLOWER, outcome.getRole());
}

Example 23 with Outcome

use of org.neo4j.causalclustering.core.consensus.outcome.Outcome in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldAcceptInitialEntriesAfterBootstrap.

@Test
public void shouldAcceptInitialEntriesAfterBootstrap() throws Exception {
    RaftLog raftLog = bootstrappedLog();
    RaftState state = raftState().entryLog(raftLog).myself(myself).build();
    long leaderTerm = state.term() + leaderTermDifference;
    RaftLogEntry logEntry1 = new RaftLogEntry(leaderTerm, content());
    RaftLogEntry logEntry2 = new RaftLogEntry(leaderTerm, content());
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(0).prevLogTerm(0).logEntry(logEntry1).logEntry(logEntry2).build(), state, log());
    // then
    assertTrue(((Response) messageFor(outcome, leader)).success());
    assertThat(outcome.getLogCommands(), hasItem(new BatchAppendLogEntries(1, 0, new RaftLogEntry[] { logEntry1, logEntry2 })));
}

Example 24 with Outcome

use of org.neo4j.causalclustering.core.consensus.outcome.Outcome in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldRejectDiscontinuousEntries.

@Test
public void shouldRejectDiscontinuousEntries() throws Exception {
    // given
    RaftState state = raftState().myself(myself).build();
    long leaderTerm = state.term() + leaderTermDifference;
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(state.entryLog().appendIndex() + 1).prevLogTerm(leaderTerm).logEntry(new RaftLogEntry(leaderTerm, content())).build(), state, log());
    // then
    Response response = (Response) messageFor(outcome, leader);
    assertEquals(state.entryLog().appendIndex(), response.appendIndex());
    assertFalse(response.success());
}

Example 25 with Outcome

use of org.neo4j.causalclustering.core.consensus.outcome.Outcome in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldAcceptContinuousEntries.

@Test
public void shouldAcceptContinuousEntries() throws Exception {
    InMemoryRaftLog raftLog = new InMemoryRaftLog();
    RaftState state = raftState().myself(myself).entryLog(raftLog).build();
    long leaderTerm = state.term() + leaderTermDifference;
    raftLog.append(new RaftLogEntry(leaderTerm, content()));
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(raftLog.appendIndex()).prevLogTerm(leaderTerm).logEntry(new RaftLogEntry(leaderTerm, content())).build(), state, log());
    // then
    assertTrue(((Response) messageFor(outcome, leader)).success());
}