/**
* Unit test for quorum member add/remove.
*
* @throws InterruptedException
*/
public void test_memberAddRemove() throws InterruptedException {
final Quorum<?, ?> quorum = quorums[0];
final QuorumMember<?> client = clients[0];
final QuorumActor<?, ?> actor = actors[0];
final UUID serviceId = client.getServiceId();
// client is not a member.
assertFalse(client.isMember());
assertEquals(new UUID[] {}, quorum.getMembers());
// instruct actor to add client as a member.
actor.memberAdd();
fixture.awaitDeque();
// client is a member.
assertTrue(client.isMember());
assertEquals(new UUID[] {serviceId}, quorum.getMembers());
// instruct actor to remove client as a member.
actor.memberRemove();
fixture.awaitDeque();
// client is not a member.
assertFalse(client.isMember());
assertEquals(new UUID[] {}, quorum.getMembers());
}
/**
* Unit test for quorum member add followed by the termination of the quorum client. This checks
* for proper termination of the client, including the clear down of the quorum's internal state.
*
* @throws InterruptedException
*/
public void test_memberAdd_terminateClient() throws InterruptedException {
final Quorum<?, ?> quorum = quorums[0];
final QuorumMember<?> client = clients[0];
final QuorumActor<?, ?> actor = actors[0];
final UUID serviceId = client.getServiceId();
// client is not a member.
assertFalse(client.isMember());
assertEquals(new UUID[] {}, quorum.getMembers());
// instruct actor to add client as a member.
actor.memberAdd();
fixture.awaitDeque();
// client is a member.
assertTrue(client.isMember());
assertEquals(new UUID[] {serviceId}, quorum.getMembers());
/*
* Verify termination of the quorum for that client.
*/
assertEquals(client, quorum.getClient());
quorum.terminate();
try {
quorum.getClient();
} catch (IllegalStateException ex) {
log.info("Ignoring expected exception: " + ex);
}
// State was cleared.
assertEquals(Quorum.NO_QUORUM, quorum.token());
assertEquals(Quorum.NO_QUORUM, quorum.lastValidToken());
assertEquals(new UUID[] {}, quorum.getMembers());
assertEquals(new UUID[] {}, quorum.getJoined());
assertEquals(new UUID[] {}, quorum.getPipeline());
assertEquals(Collections.emptyMap(), quorum.getVotes());
try {
// Note: Quorum reference was cleared. Client throws exception.
assertFalse(client.isMember());
} catch (IllegalStateException ex) {
log.info("Ignoring expected exception: " + ex);
}
// Double-termination is safe.
quorum.terminate();
}
