+
+ @Test
+ public void testServerConfigurationPayloadApplied() {
+ String follower1 = "follower1";
+ String follower2 = "follower2";
+ String follower3 = "follower3";
+
+ context.addToPeers(follower1, null, VotingState.VOTING);
+ context.addToPeers(follower2, null, VotingState.VOTING);
+
+ //add new Server
+ ServerConfigurationPayload obj = new ServerConfigurationPayload(List.of(
+ new ServerInfo(localId, true),
+ new ServerInfo(follower1, true),
+ new ServerInfo(follower2, false),
+ new ServerInfo(follower3, true)));
+
+ sendMessageToSupport(new SimpleReplicatedLogEntry(0, 1, obj));
+
+ //verify new peers
+ assertTrue("Dynamic server configuration", context.isDynamicServerConfigurationInUse());
+ assertEquals("New peer Ids", Set.of(follower1, follower2, follower3), Set.copyOf(context.getPeerIds()));
+ assertEquals("follower1 isVoting", true, context.getPeerInfo(follower1).isVoting());
+ assertEquals("follower2 isVoting", false, context.getPeerInfo(follower2).isVoting());
+ assertEquals("follower3 isVoting", true, context.getPeerInfo(follower3).isVoting());
+
+ sendMessageToSupport(new ApplyJournalEntries(0));
+
+ verify(mockCohort, never()).startLogRecoveryBatch(anyInt());
+ verify(mockCohort, never()).appendRecoveredLogEntry(any(Payload.class));
+
+ //remove existing follower1
+ obj = new ServerConfigurationPayload(List.of(
+ new ServerInfo(localId, true),
+ new ServerInfo("follower2", true),
+ new ServerInfo("follower3", true)));
+
+ sendMessageToSupport(new SimpleReplicatedLogEntry(1, 1, obj));
+
+ //verify new peers
+ assertTrue("Dynamic server configuration", context.isDynamicServerConfigurationInUse());
+ assertEquals("New peer Ids", Set.of(follower2, follower3), Set.copyOf(context.getPeerIds()));
+ }
+
+ @Test
+ public void testServerConfigurationPayloadAppliedWithPersistenceDisabled() {
+ doReturn(false).when(mockPersistence).isRecoveryApplicable();
+
+ String follower = "follower";
+ ServerConfigurationPayload obj = new ServerConfigurationPayload(List.of(
+ new ServerInfo(localId, true), new ServerInfo(follower, true)));
+
+ sendMessageToSupport(new SimpleReplicatedLogEntry(0, 1, obj));
+
+ //verify new peers
+ assertEquals("New peer Ids", Set.of(follower), Set.copyOf(context.getPeerIds()));
+ }
+
+ @Test
+ public void testOnSnapshotOfferWithServerConfiguration() {
+ long electionTerm = 2;
+ String electionVotedFor = "member-2";
+ ServerConfigurationPayload serverPayload = new ServerConfigurationPayload(List.of(
+ new ServerInfo(localId, true),
+ new ServerInfo("follower1", true),
+ new ServerInfo("follower2", true)));
+
+ MockSnapshotState snapshotState = new MockSnapshotState(List.of(new MockPayload("1")));
+ Snapshot snapshot = Snapshot.create(snapshotState, List.of(),
+ -1, -1, -1, -1, electionTerm, electionVotedFor, serverPayload);
+
+ SnapshotMetadata metadata = new SnapshotMetadata("test", 6, 12345);
+ SnapshotOffer snapshotOffer = new SnapshotOffer(metadata, snapshot);
+
+ sendMessageToSupport(snapshotOffer);
+
+ assertEquals("Journal log size", 0, context.getReplicatedLog().size());
+ assertEquals("Election term", electionTerm, context.getTermInformation().getCurrentTerm());
+ assertEquals("Election votedFor", electionVotedFor, context.getTermInformation().getVotedFor());
+ assertTrue("Dynamic server configuration", context.isDynamicServerConfigurationInUse());
+ assertEquals("Peer List", Set.of("follower1", "follower2"), Set.copyOf(context.getPeerIds()));
+ }
+}
\ No newline at end of file