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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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/platform/basic.h"
#include "mongo/db/logical_clock.h"
#include "mongo/db/logical_clock_test_fixture.h"
#include "mongo/db/read_write_concern_defaults.h"
#include "mongo/db/read_write_concern_defaults_cache_lookup_mock.h"
#include "mongo/db/repl/optime.h"
#include "mongo/db/service_context_test_fixture.h"
#include "mongo/util/clock_source_mock.h"
namespace mongo {
namespace {
class ReadWriteConcernDefaultsTest : public ServiceContextTest {
public:
~ReadWriteConcernDefaultsTest() {
_rwcd.invalidate();
}
protected:
ReadWriteConcernDefaultsLookupMock _lookupMock;
ReadWriteConcernDefaults& _rwcd{[&]() -> ReadWriteConcernDefaults& {
ReadWriteConcernDefaults::create(getServiceContext(), _lookupMock.getFetchDefaultsFn());
return ReadWriteConcernDefaults::get(getServiceContext());
}()};
ServiceContext::UniqueOperationContext _opCtxHolder{makeOperationContext()};
OperationContext* const _opCtx{_opCtxHolder.get()};
};
TEST_F(ReadWriteConcernDefaultsTest, TestGetDefaultWithAbsentDefaults) {
// By not calling _lookupMock.setLookupCallReturnValue(), tests _defaults.lookup() returning
// boost::none.
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT(!defaults.getEpoch());
ASSERT(!defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestGetDefaultWithDefaultsNeverSet) {
_lookupMock.setLookupCallReturnValue({});
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT(!defaults.getEpoch());
ASSERT(!defaults.getSetTime());
ASSERT(defaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestGetDefaultWithUnsetDefaults) {
RWConcernDefault newDefaults;
newDefaults.setEpoch(Timestamp(1, 2));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT_EQ(Timestamp(1, 2), *defaults.getEpoch());
ASSERT_EQ(1234, defaults.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestGetDefaultWithSetDefaults) {
RWConcernDefault newDefaults;
newDefaults.setDefaultReadConcern(
repl::ReadConcernArgs(repl::ReadConcernLevel::kLocalReadConcern));
WriteConcernOptions wc;
wc.wNumNodes = 4;
newDefaults.setDefaultWriteConcern(wc);
newDefaults.setEpoch(Timestamp(1, 2));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(defaults.getDefaultReadConcern()->getLevel() ==
repl::ReadConcernLevel::kLocalReadConcern);
ASSERT_EQ(4, defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT_EQ(Timestamp(1, 2), *defaults.getEpoch());
ASSERT_EQ(1234, defaults.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestGetDefaultLookupFailure) {
_lookupMock.setLookupCallFailure(Status{ErrorCodes::Error(1234), "foobar"});
ASSERT_THROWS_CODE_AND_WHAT(_rwcd.getDefault(_opCtx), AssertionException, 1234, "foobar");
}
TEST_F(ReadWriteConcernDefaultsTest, TestGetDefaultWithoutInvalidateDoesNotCallLookup) {
RWConcernDefault newDefaults;
newDefaults.setEpoch(Timestamp(1, 2));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT_EQ(Timestamp(1, 2), *defaults.getEpoch());
ASSERT_EQ(1234, defaults.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults.getLocalSetTime());
RWConcernDefault newDefaults2;
newDefaults2.setDefaultReadConcern(
repl::ReadConcernArgs(repl::ReadConcernLevel::kLocalReadConcern));
WriteConcernOptions wc;
wc.wNumNodes = 4;
newDefaults2.setDefaultWriteConcern(wc);
newDefaults2.setEpoch(Timestamp(3, 4));
newDefaults2.setSetTime(Date_t::fromMillisSinceEpoch(5678));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults2));
auto defaults2 = _rwcd.getDefault(_opCtx);
ASSERT(!defaults2.getDefaultReadConcern());
ASSERT(!defaults2.getDefaultWriteConcern());
ASSERT_EQ(Timestamp(1, 2), *defaults2.getEpoch());
ASSERT_EQ(1234, defaults2.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults2.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestInvalidate) {
RWConcernDefault newDefaults;
newDefaults.setEpoch(Timestamp(1, 2));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT_EQ(Timestamp(1, 2), *defaults.getEpoch());
ASSERT_EQ(1234, defaults.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults.getLocalSetTime());
RWConcernDefault newDefaults2;
newDefaults2.setDefaultReadConcern(
repl::ReadConcernArgs(repl::ReadConcernLevel::kLocalReadConcern));
WriteConcernOptions wc;
wc.wNumNodes = 4;
newDefaults2.setDefaultWriteConcern(wc);
newDefaults2.setEpoch(Timestamp(3, 4));
newDefaults2.setSetTime(Date_t::fromMillisSinceEpoch(5678));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults2));
_rwcd.invalidate();
auto defaults2 = _rwcd.getDefault(_opCtx);
ASSERT(defaults2.getDefaultReadConcern()->getLevel() ==
repl::ReadConcernLevel::kLocalReadConcern);
ASSERT_EQ(4, defaults2.getDefaultWriteConcern()->wNumNodes);
ASSERT_EQ(Timestamp(3, 4), *defaults2.getEpoch());
ASSERT_EQ(5678, defaults2.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults2.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestRefreshDefaultsWithEmptyCacheAndAbsentDefaults) {
_rwcd.refreshIfNecessary(_opCtx);
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT(!defaults.getEpoch());
ASSERT(!defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestRefreshDefaultsWithEmptyCacheAndSetDefaults) {
RWConcernDefault newDefaults;
newDefaults.setEpoch(Timestamp(1, 2));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
_rwcd.refreshIfNecessary(_opCtx);
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT_EQ(Timestamp(1, 2), *defaults.getEpoch());
ASSERT_EQ(1234, defaults.getSetTime()->toMillisSinceEpoch());
ASSERT(defaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTest, TestRefreshDefaultsWithHigherEpoch) {
RWConcernDefault newDefaults;
newDefaults.setEpoch(Timestamp(1, 2));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT_EQ(Timestamp(1, 2), *defaults.getEpoch());
ASSERT_EQ(1234, defaults.getSetTime()->toMillisSinceEpoch());
RWConcernDefault newDefaults2;
newDefaults2.setEpoch(Timestamp(3, 4));
newDefaults2.setSetTime(Date_t::fromMillisSinceEpoch(5678));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults2));
_rwcd.refreshIfNecessary(_opCtx);
auto defaults2 = _rwcd.getDefault(_opCtx);
ASSERT_EQ(Timestamp(3, 4), *defaults2.getEpoch());
ASSERT_EQ(5678, defaults2.getSetTime()->toMillisSinceEpoch());
}
TEST_F(ReadWriteConcernDefaultsTest, TestRefreshDefaultsWithLowerEpoch) {
RWConcernDefault newDefaults;
newDefaults.setEpoch(Timestamp(10, 20));
newDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults));
auto defaults = _rwcd.getDefault(_opCtx);
ASSERT(defaults.getEpoch());
ASSERT(defaults.getSetTime());
RWConcernDefault newDefaults2;
newDefaults2.setEpoch(Timestamp(5, 6));
newDefaults2.setSetTime(Date_t::fromMillisSinceEpoch(5678));
_lookupMock.setLookupCallReturnValue(std::move(newDefaults2));
_rwcd.refreshIfNecessary(_opCtx);
auto defaults2 = _rwcd.getDefault(_opCtx);
ASSERT_EQ(Timestamp(10, 20), *defaults2.getEpoch());
ASSERT_EQ(1234, defaults2.getSetTime()->toMillisSinceEpoch());
}
/**
* ReadWriteConcernDefaults::generateNewConcerns() uses the current clusterTime and wall clock time
* (for epoch and setTime/localSetTime), so testing it requires a fixture with a logical clock.
*/
class ReadWriteConcernDefaultsTestWithClusterTime : public LogicalClockTestFixture {
public:
virtual ~ReadWriteConcernDefaultsTestWithClusterTime() {
_rwcd.invalidate();
}
protected:
auto setupOldDefaults() {
auto defaults = _rwcd.generateNewConcerns(
operationContext(),
repl::ReadConcernArgs(repl::ReadConcernLevel::kLocalReadConcern),
uassertStatusOK(WriteConcernOptions::parse(BSON("w" << 4))));
ASSERT(defaults.getDefaultReadConcern()->getLevel() ==
repl::ReadConcernLevel::kLocalReadConcern);
ASSERT_EQ(4, defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT(defaults.getEpoch());
ASSERT(defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
auto oldDefaults = _rwcd.getDefault(operationContext());
getClock()->reserveTicks(1);
getMockClockSource()->advance(Milliseconds(1));
return oldDefaults;
}
ReadWriteConcernDefaultsLookupMock _lookupMock;
ReadWriteConcernDefaults& _rwcd{[&]() -> ReadWriteConcernDefaults& {
ReadWriteConcernDefaults::create(getServiceContext(), _lookupMock.getFetchDefaultsFn());
return ReadWriteConcernDefaults::get(getServiceContext());
}()};
};
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime, TestGenerateNewConcernsInvalidNeither) {
ASSERT_THROWS_CODE(_rwcd.generateNewConcerns(operationContext(), boost::none, boost::none),
AssertionException,
ErrorCodes::BadValue);
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsInvalidReadConcernLevel) {
ASSERT_THROWS_CODE(_rwcd.generateNewConcerns(
operationContext(),
repl::ReadConcernArgs(repl::ReadConcernLevel::kSnapshotReadConcern),
boost::none),
AssertionException,
ErrorCodes::BadValue);
ASSERT_THROWS_CODE(_rwcd.generateNewConcerns(
operationContext(),
repl::ReadConcernArgs(repl::ReadConcernLevel::kLinearizableReadConcern),
boost::none),
AssertionException,
ErrorCodes::BadValue);
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsInvalidReadConcernFields) {
ASSERT_THROWS_CODE(_rwcd.generateNewConcerns(operationContext(),
repl::ReadConcernArgs::fromBSONThrows(
BSON("level"
<< "local"
<< "afterOpTime" << repl::OpTime())),
boost::none),
AssertionException,
ErrorCodes::BadValue);
ASSERT_THROWS_CODE(_rwcd.generateNewConcerns(operationContext(),
repl::ReadConcernArgs::fromBSONThrows(BSON(
"level"
<< "local"
<< "afterClusterTime" << Timestamp(1, 2))),
boost::none),
AssertionException,
ErrorCodes::BadValue);
ASSERT_THROWS_CODE(_rwcd.generateNewConcerns(operationContext(),
repl::ReadConcernArgs::fromBSONThrows(
BSON("level"
<< "snapshot"
<< "atClusterTime" << Timestamp(1, 2))),
boost::none),
AssertionException,
ErrorCodes::BadValue);
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime, TestGenerateNewConcernsInvalidWriteConcern) {
ASSERT_THROWS_CODE(
_rwcd.generateNewConcerns(operationContext(),
boost::none,
uassertStatusOK(WriteConcernOptions::parse(BSON("w" << 0)))),
AssertionException,
ErrorCodes::BadValue);
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsValidSetReadConcernAndWriteConcerns) {
auto oldDefaults = setupOldDefaults();
auto defaults = _rwcd.generateNewConcerns(
operationContext(),
repl::ReadConcernArgs(repl::ReadConcernLevel::kMajorityReadConcern),
uassertStatusOK(WriteConcernOptions::parse(BSON("w" << 5))));
ASSERT(defaults.getDefaultReadConcern()->getLevel() ==
repl::ReadConcernLevel::kMajorityReadConcern);
ASSERT_EQ(5, defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT_LT(*oldDefaults.getEpoch(), *defaults.getEpoch());
ASSERT_LT(*oldDefaults.getSetTime(), *defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
_rwcd.refreshIfNecessary(operationContext());
auto newDefaults = _rwcd.getDefault(operationContext());
ASSERT_LT(*oldDefaults.getLocalSetTime(), *newDefaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsValidSetReadConcernOnly) {
auto oldDefaults = setupOldDefaults();
auto defaults = _rwcd.generateNewConcerns(
operationContext(),
repl::ReadConcernArgs(repl::ReadConcernLevel::kMajorityReadConcern),
boost::none);
ASSERT(defaults.getDefaultReadConcern()->getLevel() ==
repl::ReadConcernLevel::kMajorityReadConcern);
ASSERT_EQ(oldDefaults.getDefaultWriteConcern()->wNumNodes,
defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT_LT(*oldDefaults.getEpoch(), *defaults.getEpoch());
ASSERT_LT(*oldDefaults.getSetTime(), *defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
_rwcd.refreshIfNecessary(operationContext());
auto newDefaults = _rwcd.getDefault(operationContext());
ASSERT_LT(*oldDefaults.getLocalSetTime(), *newDefaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsValidSetWriteConcernOnly) {
auto oldDefaults = setupOldDefaults();
auto defaults =
_rwcd.generateNewConcerns(operationContext(),
boost::none,
uassertStatusOK(WriteConcernOptions::parse(BSON("w" << 5))));
ASSERT(oldDefaults.getDefaultReadConcern()->getLevel() ==
defaults.getDefaultReadConcern()->getLevel());
ASSERT_EQ(5, defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT_LT(*oldDefaults.getEpoch(), *defaults.getEpoch());
ASSERT_LT(*oldDefaults.getSetTime(), *defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
_rwcd.refreshIfNecessary(operationContext());
auto newDefaults = _rwcd.getDefault(operationContext());
ASSERT_LT(*oldDefaults.getLocalSetTime(), *newDefaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsValidUnsetReadConcernAndWriteConcern) {
auto oldDefaults = setupOldDefaults();
auto defaults = _rwcd.generateNewConcerns(
operationContext(), repl::ReadConcernArgs(), WriteConcernOptions());
ASSERT(!defaults.getDefaultReadConcern());
ASSERT(!defaults.getDefaultWriteConcern());
ASSERT_LT(*oldDefaults.getEpoch(), *defaults.getEpoch());
ASSERT_LT(*oldDefaults.getSetTime(), *defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
_rwcd.refreshIfNecessary(operationContext());
auto newDefaults = _rwcd.getDefault(operationContext());
ASSERT_LT(*oldDefaults.getLocalSetTime(), *newDefaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsValidSetWriteConcernWithOnlyJ) {
auto oldDefaults = setupOldDefaults();
auto defaults =
_rwcd.generateNewConcerns(operationContext(),
boost::none,
uassertStatusOK(WriteConcernOptions::parse(BSON("j" << true))));
ASSERT(oldDefaults.getDefaultReadConcern()->getLevel() ==
defaults.getDefaultReadConcern()->getLevel());
ASSERT_EQ(1, defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT_EQ(0, defaults.getDefaultWriteConcern()->wTimeout);
ASSERT(WriteConcernOptions::SyncMode::JOURNAL == defaults.getDefaultWriteConcern()->syncMode);
ASSERT_LT(*oldDefaults.getEpoch(), *defaults.getEpoch());
ASSERT_LT(*oldDefaults.getSetTime(), *defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
_rwcd.refreshIfNecessary(operationContext());
auto newDefaults = _rwcd.getDefault(operationContext());
ASSERT_LT(*oldDefaults.getLocalSetTime(), *newDefaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime,
TestGenerateNewConcernsValidSetWriteConcernWithOnlyWtimeout) {
auto oldDefaults = setupOldDefaults();
auto defaults = _rwcd.generateNewConcerns(
operationContext(),
boost::none,
uassertStatusOK(WriteConcernOptions::parse(BSON("wtimeout" << 12345))));
ASSERT(oldDefaults.getDefaultReadConcern()->getLevel() ==
defaults.getDefaultReadConcern()->getLevel());
ASSERT_EQ(1, defaults.getDefaultWriteConcern()->wNumNodes);
ASSERT_EQ(12345, defaults.getDefaultWriteConcern()->wTimeout);
ASSERT(WriteConcernOptions::SyncMode::UNSET == defaults.getDefaultWriteConcern()->syncMode);
ASSERT_LT(*oldDefaults.getEpoch(), *defaults.getEpoch());
ASSERT_LT(*oldDefaults.getSetTime(), *defaults.getSetTime());
ASSERT(!defaults.getLocalSetTime());
_lookupMock.setLookupCallReturnValue(std::move(defaults));
_rwcd.refreshIfNecessary(operationContext());
auto newDefaults = _rwcd.getDefault(operationContext());
ASSERT_LT(*oldDefaults.getLocalSetTime(), *newDefaults.getLocalSetTime());
}
TEST_F(ReadWriteConcernDefaultsTestWithClusterTime, TestRefreshDefaultsWithDeletedDefaults) {
RWConcernDefault origDefaults;
origDefaults.setEpoch(Timestamp(10, 20));
origDefaults.setSetTime(Date_t::fromMillisSinceEpoch(1234));
_lookupMock.setLookupCallReturnValue(std::move(origDefaults));
auto origCachedDefaults = _rwcd.getDefault(operationContext());
ASSERT_EQ(Timestamp(10, 20), *origCachedDefaults.getEpoch());
ASSERT_EQ(Date_t::fromMillisSinceEpoch(1234), *origCachedDefaults.getSetTime());
getClock()->reserveTicks(1);
getMockClockSource()->advance(Milliseconds(1));
_lookupMock.setLookupCallReturnValue(RWConcernDefault());
_rwcd.refreshIfNecessary(operationContext());
// The cache should now contain default constructed defaults.
auto newCachedDefaults = _rwcd.getDefault(operationContext());
ASSERT(!newCachedDefaults.getEpoch());
ASSERT(!newCachedDefaults.getSetTime());
ASSERT_LT(*origCachedDefaults.getLocalSetTime(), *newCachedDefaults.getLocalSetTime());
}
} // namespace
} // namespace mongo
|
