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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/health_observer.h"

#include "mongo/db/process_health/health_observer_mock.h"
#include "mongo/db/process_health/health_observer_registration.h"
#include "mongo/db/service_context.h"
#include "mongo/unittest/unittest.h"

namespace mongo {

namespace process_health {

namespace {

class HealthObserverTest : public unittest::Test {
public:
    void setUp() override {
        _svcCtx = ServiceContext::make();
    }

    void registerMock() {
        HealthObserverRegistration* reg = HealthObserverRegistration::get(_svcCtx.get());
        reg->registerObserverFactory(
            [](ServiceContext* svcCtx) { return std::make_unique<HealthObserverMock>(svcCtx); });
    }

    HealthObserverRegistration* registration() {
        return HealthObserverRegistration::get(_svcCtx.get());
    }

private:
    ServiceContext::UniqueServiceContext _svcCtx;
};

TEST_F(HealthObserverTest, Registration) {
    registerMock();
    auto allObservers = registration()->instantiateAllObservers();
    ASSERT_EQ(1, allObservers.size());
    ASSERT_EQ(FaultFacetType::kMock, allObservers[0]->getType());
}

}  // namespace
}  // namespace process_health
}  // namespace mongo