@Test
public void testJoinsAndWatchesSurviveDisconnect() throws Exception {
replay(onLoseMembership);
assertEmptyMembershipObserved();
Membership membership = joinGroup.join();
String originalMemberId = membership.getMemberId();
assertMembershipObserved(originalMemberId);
shutdownNetwork();
restartNetwork();
// The member should still be present under existing ephemeral node since session did not
// expire.
watchGroup.watch(listener);
assertMembershipObserved(originalMemberId);
membership.cancel();
assertEmptyMembershipObserved();
assertEmptyMembershipObserved(); // and again for 2nd listener
listener.assertEmpty();
verify(onLoseMembership);
reset(onLoseMembership); // Turn off expectations during ZK server shutdown.
}
@Before
public void mySetUp() throws Exception {
onLoseMembership = createMock(Command.class);
zkClient = createZkClient("group", "test");
joinGroup = new Group(zkClient, ZooKeeperUtils.EVERYONE_READ_CREATOR_ALL, "/a/group");
watchGroup = new Group(zkClient, ZooKeeperUtils.EVERYONE_READ_CREATOR_ALL, "/a/group");
listener = new RecordingListener();
stopWatching = watchGroup.watch(listener);
}
@Test
public void testAcls() throws Exception {
Group securedMembership =
new Group(
createZkClient("secured", "group"),
ZooKeeperUtils.EVERYONE_READ_CREATOR_ALL,
"/secured/group/membership");
String memberId = securedMembership.join().getMemberId();
Group unauthenticatedObserver =
new Group(
createZkClient(Credentials.NONE), Ids.READ_ACL_UNSAFE, "/secured/group/membership");
RecordingListener unauthenticatedListener = new RecordingListener();
unauthenticatedObserver.watch(unauthenticatedListener);
assertMembershipObserved(unauthenticatedListener, memberId);
try {
unauthenticatedObserver.join();
fail("Expected join exception for unauthenticated observer");
} catch (JoinException e) {
// expected
}
Group unauthorizedObserver =
new Group(
createZkClient("joe", "schmoe"), Ids.READ_ACL_UNSAFE, "/secured/group/membership");
RecordingListener unauthorizedListener = new RecordingListener();
unauthorizedObserver.watch(unauthorizedListener);
assertMembershipObserved(unauthorizedListener, memberId);
try {
unauthorizedObserver.join();
fail("Expected join exception for unauthorized observer");
} catch (JoinException e) {
// expected
}
}
@Test
public void testJoinCustomNamingScheme() throws Exception {
Group group =
new Group(
zkClient, ZooKeeperUtils.EVERYONE_READ_CREATOR_ALL, "/a/group", new CustomScheme());
listener = new RecordingListener();
group.watch(listener);
assertEmptyMembershipObserved();
Membership membership = group.join();
String memberId = membership.getMemberId();
assertEquals("Wrong member ID.", CustomScheme.NODE_NAME, memberId);
assertMembershipObserved(memberId);
expireSession(zkClient);
}