+ @Test
+ public void testRecoveryDeleteEntries() {
+ send2InitialPayloads();
+
+ sendPayloadData(leaderActor, "two");
+
+ // This should trigger a snapshot.
+ sendPayloadData(leaderActor, "three");
+
+ MessageCollectorActor.expectFirstMatching(leaderCollectorActor, SaveSnapshotSuccess.class);
+ MessageCollectorActor.expectMatching(leaderCollectorActor, ApplyJournalEntries.class, 2);
+
+ // Disconnect follower from leader
+ killActor(follower1Actor);
+
+ // Send another payloads
+ sendPayloadData(leaderActor, "four");
+ sendPayloadData(leaderActor, "five");
+
+ verifyRaftState(leaderActor, raftState -> {
+ assertEquals("leader journal last index", 5, leaderContext.getReplicatedLog().lastIndex());
+ });
+
+ // Remove entries started from 4 index
+ leaderActor.underlyingActor().getReplicatedLog().removeFromAndPersist(4);
+
+ verifyRaftState(leaderActor, raftState -> {
+ assertEquals("leader journal last index", 3, leaderContext.getReplicatedLog().lastIndex());
+ });
+
+ // Send new payloads
+ final MockPayload payload4 = sendPayloadData(leaderActor, "newFour");
+ final MockPayload payload5 = sendPayloadData(leaderActor, "newFive");
+
+ verifyRaftState(leaderActor, raftState -> {
+ assertEquals("leader journal last index", 5, leaderContext.getReplicatedLog().lastIndex());
+ });
+
+ reinstateLeaderActor();
+
+ final var log = leaderActor.underlyingActor().getReplicatedLog();
+ assertEquals("Leader last index", 5, log.lastIndex());
+ assertEquals(List.of(payload4, payload5), List.of(log.get(4).getData(), log.get(5).getData()));
+ }
+