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/**
* Copyright (C) 2021-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/db/process_health/fault_impl.h"
#include "mongo/db/process_health/fault_facet_mock.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/clock_source_mock.h"
namespace mongo {
namespace process_health {
namespace {
class FaultImplTest : public unittest::Test {
public:
void setUp() override {
_svcCtx = ServiceContext::make();
_svcCtx->setFastClockSource(std::make_unique<ClockSourceMock>());
_faultImpl = std::make_unique<FaultImpl>(_svcCtx->getFastClockSource());
}
ClockSourceMock& clockSource() {
return *static_cast<ClockSourceMock*>(_svcCtx->getFastClockSource());
}
FaultImpl& fault() {
return *_faultImpl;
}
private:
ServiceContext::UniqueServiceContext _svcCtx;
std::unique_ptr<FaultImpl> _faultImpl;
};
TEST_F(FaultImplTest, TimeSourceWorks) {
// Fault was just created, duration should be zero.
ASSERT_EQ(Milliseconds(0), fault().getDuration());
clockSource().advance(Milliseconds(1));
ASSERT_EQ(Milliseconds(1), fault().getDuration());
}
TEST_F(FaultImplTest, SeverityLevelHelpersWork) {
FaultFacetMock resolvedFacet(FaultFacetType::kMock1, &clockSource(), [] { return 0; });
ASSERT_TRUE(HealthCheckStatus::isResolved(resolvedFacet.getStatus().getSeverity()));
FaultFacetMock transientFacet(FaultFacetType::kMock1, &clockSource(), [] { return 0.99; });
ASSERT_TRUE(HealthCheckStatus::isTransientFault(transientFacet.getStatus().getSeverity()));
FaultFacetMock faultyFacet(FaultFacetType::kMock1, &clockSource(), [] { return 1.0; });
ASSERT_TRUE(HealthCheckStatus::isActiveFault(faultyFacet.getStatus().getSeverity()));
}
TEST_F(FaultImplTest, FindFacetByType) {
ASSERT_EQ(0, fault().getFacets().size());
ASSERT_FALSE(fault().getFaultFacet(FaultFacetType::kMock1));
FaultFacetPtr newFacet =
std::make_shared<FaultFacetMock>(FaultFacetType::kMock1, &clockSource(), [] { return 0; });
fault().updateWithSuppliedFacet(FaultFacetType::kMock1, newFacet);
auto facet = fault().getFaultFacet(FaultFacetType::kMock1);
ASSERT_TRUE(facet);
auto status = facet->getStatus();
ASSERT_EQ(FaultFacetType::kMock1, status.getType());
}
TEST_F(FaultImplTest, CanCreateAndGarbageCollectFacets) {
AtomicDouble severity{0.1};
ASSERT_EQ(0, fault().getFacets().size());
FaultFacetPtr newFacet = std::make_shared<FaultFacetMock>(
FaultFacetType::kMock1, &clockSource(), [&severity] { return severity.load(); });
fault().updateWithSuppliedFacet(FaultFacetType::kMock1, newFacet);
// New facet was added successfully.
ASSERT_EQ(1, fault().getFacets().size());
// Facet cannot be garbage collected.
fault().garbageCollectResolvedFacets();
ASSERT_EQ(1, fault().getFacets().size());
severity.store(0);
fault().garbageCollectResolvedFacets();
ASSERT_EQ(0, fault().getFacets().size());
}
} // namespace
} // namespace process_health
} // namespace mongo
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