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author | Benety Goh <benety@mongodb.com> | 2017-03-09 14:50:59 -0500 |
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committer | Benety Goh <benety@mongodb.com> | 2017-03-23 16:00:31 -0400 |
commit | c1964e817459a575a64609229a473d57d08aa4d0 (patch) | |
tree | 83d079215cfc9010f99ef381e7a3c7d8b9b11db3 /src/mongo/db/repl/rollback_test_fixture.h | |
parent | 41d56f108e341c88fe26632084d6140ea75813c0 (diff) | |
download | mongo-c1964e817459a575a64609229a473d57d08aa4d0.tar.gz |
SERVER-28204 added RollbackTest fixture
Diffstat (limited to 'src/mongo/db/repl/rollback_test_fixture.h')
-rw-r--r-- | src/mongo/db/repl/rollback_test_fixture.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/mongo/db/repl/rollback_test_fixture.h b/src/mongo/db/repl/rollback_test_fixture.h new file mode 100644 index 00000000000..ece8cd682d2 --- /dev/null +++ b/src/mongo/db/repl/rollback_test_fixture.h @@ -0,0 +1,118 @@ +/** + * Copyright (C) 2017 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. + */ + +#pragma once + +#include "mongo/db/repl/replication_coordinator_mock.h" +#include "mongo/db/repl/storage_interface_mock.h" +#include "mongo/db/service_context.h" +#include "mongo/db/service_context_d_test_fixture.h" +#include "mongo/executor/thread_pool_task_executor_test_fixture.h" + +namespace mongo { +namespace repl { + +/** + * Test fixture for both 3.4 and 3.6 rollback unit tests. + * The fixture makes available to tests: + * - an "ephemeralForTest" storage engine for checking results of the rollback algorithm at the + * storage layer. The storage engine is initialized as part of the ServiceContextForMongoD test + * fixture. + * - a task executor for simulating remote command responses from the sync source. The + * ThreadPoolExecutorTest is used to initialize the task executor. + */ +class RollbackTest : public unittest::Test { +public: + /** + * Initializes executor::ThreadPoolExecutorTest so that each thread is initialized with a + * Client. + */ + RollbackTest(); + + /** + * Initializes the service context and task executor. + */ + void setUp() override; + + /** + * Destroys the service context and task executor. + * + * Note on overriding tearDown() in tests: + * Tests should explicitly shut down and join the task executor (by invoking + * TaskExecutorTest::shutdownExecutorThread() and TaskExecutorTest::joinExecutorThread() + * respectively) before calling RollbackTest::tearDown(). + * This cancels outstanding tasks and remote command requests scheduled using the task + * executor. + */ + void tearDown() override; + +protected: + // Test fixture used to manage the service context and global storage engine. + ServiceContextMongoDTest _serviceContextMongoDTest; + + // Test fixture used to manage the task executor. + executor::ThreadPoolExecutorTest _threadPoolExecutorTest; + + // OperationContext provided to test cases for storage layer operations. + ServiceContext::UniqueOperationContext _opCtx; + + // ReplicationCoordinator mock implementation for rollback tests. + // Owned by service context. + class ReplicationCoordinatorRollbackMock; + ReplicationCoordinatorRollbackMock* _coordinator = nullptr; + + // StorageInterface used to access minValid. + StorageInterfaceMock _storageInterface; +}; + +/** + * ReplicationCoordinator mock implementation for rollback tests. + */ +class RollbackTest::ReplicationCoordinatorRollbackMock : public ReplicationCoordinatorMock { +public: + ReplicationCoordinatorRollbackMock(ServiceContext* service); + + /** + * Base class implementation triggers an invariant. This function is overridden to be a no-op + * for rollback tests. + */ + void resetLastOpTimesFromOplog(OperationContext* opCtx) override; + + /** + * Returns false (does not forward call to ReplicationCoordinatorMock::setFollowerMode()) + * if new state requested is '_failSetFollowerModeOnThisMemberState'. + * Otherwise, calls ReplicationCoordinatorMock::setFollowerMode(). + */ + bool setFollowerMode(const MemberState& newState) override; + + // Override this to make setFollowerMode() fail when called with this state. + MemberState _failSetFollowerModeOnThisMemberState = MemberState::RS_UNKNOWN; +}; + +} // namespace repl +} // namespace mongo |