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/**
* Copyright (C) 2018 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/s/config_server_op_observer.h"
#include "mongo/db/s/config/sharding_catalog_manager.h"
#include "mongo/s/cluster_identity_loader.h"
#include "mongo/s/config_server_test_fixture.h"
#include "mongo/unittest/death_test.h"
namespace mongo {
namespace {
class ConfigServerOpObserverTest : public ConfigServerTestFixture {
protected:
void setUp() override {
ConfigServerTestFixture::setUp();
ASSERT_OK(ShardingCatalogManager::get(operationContext())
->initializeConfigDatabaseIfNeeded(operationContext()));
auto clusterIdLoader = ClusterIdentityLoader::get(operationContext());
ASSERT_OK(clusterIdLoader->loadClusterId(operationContext(),
repl::ReadConcernLevel::kLocalReadConcern));
_clusterId = clusterIdLoader->getClusterId();
}
OID _clusterId;
};
TEST_F(ConfigServerOpObserverTest, NodeClearsCatalogManagerOnConfigVersionRollBack) {
ConfigServerOpObserver opObserver;
OpObserver::RollbackObserverInfo rbInfo;
rbInfo.configServerConfigVersionRolledBack = true;
opObserver.onReplicationRollback(operationContext(), rbInfo);
ASSERT_OK(ShardingCatalogManager::get(operationContext())
->initializeConfigDatabaseIfNeeded(operationContext()));
}
TEST_F(ConfigServerOpObserverTest, NodeDoesNotClearCatalogManagerWhenConfigVersionNotRolledBack) {
ConfigServerOpObserver opObserver;
OpObserver::RollbackObserverInfo rbInfo;
rbInfo.configServerConfigVersionRolledBack = false;
opObserver.onReplicationRollback(operationContext(), rbInfo);
ASSERT_EQ(ErrorCodes::AlreadyInitialized,
ShardingCatalogManager::get(operationContext())
->initializeConfigDatabaseIfNeeded(operationContext()));
}
DEATH_TEST_F(ConfigServerOpObserverTest,
NodeClearsClusterIDOnConfigVersionRollBack,
"Invariant failure") {
ConfigServerOpObserver opObserver;
OpObserver::RollbackObserverInfo rbInfo;
rbInfo.configServerConfigVersionRolledBack = true;
opObserver.onReplicationRollback(operationContext(), rbInfo);
ClusterIdentityLoader::get(operationContext())->getClusterId();
}
TEST_F(ConfigServerOpObserverTest, NodeDoesNotClearClusterIDWhenConfigVersionNotRolledBack) {
ConfigServerOpObserver opObserver;
OpObserver::RollbackObserverInfo rbInfo;
rbInfo.configServerConfigVersionRolledBack = false;
opObserver.onReplicationRollback(operationContext(), rbInfo);
ASSERT_EQ(ClusterIdentityLoader::get(operationContext())->getClusterId(), _clusterId);
}
} // namespace
} // namespace mongo
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