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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "unit_test.h"
#include "test_tools.h"
#include "qpid/cluster/InitialStatusMap.h"
#include "qpid/framing/Uuid.h"
#include <boost/assign.hpp>
using namespace std;
using namespace qpid::cluster;
using namespace qpid::framing;
using namespace boost::assign;
namespace qpid {
namespace tests {
QPID_AUTO_TEST_SUITE(InitialStatusMapTestSuite)
typedef InitialStatusMap::Status Status;
Status activeStatus(const Uuid& id=Uuid()) { return Status(ProtocolVersion(), true, false, id, 0, ""); }
Status newcomerStatus(const Uuid& id=Uuid()) { return Status(ProtocolVersion(), false, false, id, 0, ""); }
QPID_AUTO_TEST_CASE(testFirstInCluster) {
// Single member is first in cluster.
InitialStatusMap map(MemberId(0));
Uuid id(true);
BOOST_CHECK(!map.isComplete());
MemberSet members = list_of(MemberId(0));
map.configChange(members);
BOOST_CHECK(!map.isComplete());
map.received(MemberId(0), newcomerStatus(id));
BOOST_CHECK(map.isComplete());
BOOST_CHECK(map.transitionToComplete());
BOOST_CHECK(map.getElders().empty());
BOOST_CHECK(!map.isUpdateNeeded());
BOOST_CHECK_EQUAL(id, map.getClusterId());
}
QPID_AUTO_TEST_CASE(testJoinExistingCluster) {
// Single member 0 joins existing cluster 1,2
InitialStatusMap map(MemberId(0));
Uuid id(true);
MemberSet members = list_of(MemberId(0))(MemberId(1))(MemberId(2));
map.configChange(members);
BOOST_CHECK(map.isResendNeeded());
BOOST_CHECK(!map.isComplete());
map.received(MemberId(0), newcomerStatus());
map.received(MemberId(1), activeStatus(id));
BOOST_CHECK(!map.isComplete());
map.received(MemberId(2), activeStatus(id));
BOOST_CHECK(map.isComplete());
BOOST_CHECK(map.transitionToComplete());
BOOST_CHECK_EQUAL(map.getElders(), list_of<MemberId>(1)(2));
BOOST_CHECK(map.isUpdateNeeded());
BOOST_CHECK_EQUAL(map.getClusterId(), id);
// Check that transitionToComplete is reset.
map.configChange(list_of<MemberId>(0)(1));
BOOST_CHECK(!map.transitionToComplete());
}
QPID_AUTO_TEST_CASE(testMultipleFirstInCluster) {
// Multiple members 0,1,2 join at same time.
InitialStatusMap map(MemberId(1)); // self is 1
Uuid id(true);
MemberSet members = list_of(MemberId(0))(MemberId(1))(MemberId(2));
map.configChange(members);
BOOST_CHECK(map.isResendNeeded());
// All new members
map.received(MemberId(0), newcomerStatus(id));
map.received(MemberId(1), newcomerStatus());
map.received(MemberId(2), newcomerStatus());
BOOST_CHECK(!map.isResendNeeded());
BOOST_CHECK(map.isComplete());
BOOST_CHECK(map.transitionToComplete());
BOOST_CHECK_EQUAL(map.getElders(), list_of(MemberId(2)));
BOOST_CHECK(!map.isUpdateNeeded());
BOOST_CHECK_EQUAL(map.getClusterId(), id);
}
QPID_AUTO_TEST_CASE(testMultipleJoinExisting) {
// Multiple members 1,2,3 join existing cluster containing 0.
InitialStatusMap map(MemberId(2)); // self is 2
Uuid id(true);
MemberSet members = list_of(MemberId(0))(MemberId(1))(MemberId(2))(MemberId(3));
map.configChange(members);
BOOST_CHECK(map.isResendNeeded());
map.received(MemberId(1), newcomerStatus());
map.received(MemberId(2), newcomerStatus());
map.received(MemberId(3), newcomerStatus());
map.received(MemberId(0), activeStatus(id));
BOOST_CHECK(!map.isResendNeeded());
BOOST_CHECK(map.isComplete());
BOOST_CHECK(map.transitionToComplete());
BOOST_CHECK_EQUAL(map.getElders(), list_of(MemberId(0))(MemberId(3)));
BOOST_CHECK(map.isUpdateNeeded());
BOOST_CHECK_EQUAL(map.getClusterId(), id);
}
QPID_AUTO_TEST_CASE(testMembersLeave) {
// Test that map completes if members leave rather than send status.
InitialStatusMap map(MemberId(0));
Uuid id(true);
map.configChange(list_of(MemberId(0))(MemberId(1))(MemberId(2)));
map.received(MemberId(0), newcomerStatus());
map.received(MemberId(1), activeStatus(id));
BOOST_CHECK(!map.isComplete());
map.configChange(list_of(MemberId(0))(MemberId(1))); // 2 left
BOOST_CHECK(map.isComplete());
BOOST_CHECK(map.transitionToComplete());
BOOST_CHECK_EQUAL(map.getElders(), list_of(MemberId(1)));
BOOST_CHECK_EQUAL(map.getClusterId(), id);
}
QPID_AUTO_TEST_CASE(testInteveningConfig) {
// Multiple config changes arrives before we complete the map.
InitialStatusMap map(MemberId(0));
Uuid id(true);
map.configChange(list_of<MemberId>(0)(1));
BOOST_CHECK(map.isResendNeeded());
map.received(MemberId(0), newcomerStatus());
BOOST_CHECK(!map.isComplete());
BOOST_CHECK(!map.isResendNeeded());
// New member 2 joins before we receive 1
map.configChange(list_of<MemberId>(0)(1)(2));
BOOST_CHECK(!map.isComplete());
BOOST_CHECK(map.isResendNeeded());
map.received(1, activeStatus(id));
map.received(2, newcomerStatus());
// We should not be complete as we haven't received 0 since new member joined
BOOST_CHECK(!map.isComplete());
BOOST_CHECK(!map.isResendNeeded());
map.received(0, newcomerStatus());
BOOST_CHECK(map.isComplete());
BOOST_CHECK(map.transitionToComplete());
BOOST_CHECK_EQUAL(map.getElders(), list_of<MemberId>(1));
BOOST_CHECK_EQUAL(map.getClusterId(), id);
}
QPID_AUTO_TEST_SUITE_END()
}} // namespace qpid::tests
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