/** Tests a membership group. */
private void testMembershipGroup(
Atomix client1, Atomix client2, Function<Atomix, DistributedMembershipGroup> factory)
throws Throwable {
DistributedMembershipGroup group1 = factory.apply(client1);
DistributedMembershipGroup group2 = factory.apply(client2);
LocalGroupMember localMember = group2.join().get();
assertEquals(group2.members().size(), 1);
group1
.join()
.thenRun(
() -> {
threadAssertEquals(group1.members().size(), 2);
threadAssertEquals(group2.members().size(), 2);
resume();
});
await(5000);
group1.onLeave(member -> resume());
localMember.leave().thenRun(this::resume);
await(5000, 2);
}
public void testCandidateTransitionsToFollowerOnRejection() throws Throwable {
serverState.onStateChange(
state -> {
if (state == RaftServer.State.FOLLOWER) resume();
});
runOnServer(
() -> {
for (MemberState member : serverState.getCluster().getActiveMembers()) {
Server server = transport.server();
server
.listen(
member.getAddress(),
c -> {
c.handler(
VoteRequest.class,
request ->
CompletableFuture.completedFuture(
VoteResponse.builder().withTerm(2).withVoted(false).build()));
})
.thenRunAsync(this::resume);
}
});
await(1000, serverState.getCluster().getActiveMembers().size());
runOnServer(
() -> {
int self = serverState.getAddress().hashCode();
serverState.setTerm(1);
state.startElection();
assertEquals(serverState.getTerm(), 2L);
assertEquals(serverState.getLastVotedFor(), self);
});
await(1000);
}