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/**
* Copyright (C) 2016 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kDefault
#include <memory>
#include "mongo/transport/mock_session.h"
#include "mongo/transport/mock_ticket.h"
#include "mongo/transport/transport_layer.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/net/message.h"
#include "mongo/util/time_support.h"
namespace mongo {
class ServiceEntryPoint;
struct SSLPeerInfo;
/**
* Test class. Uses a mock TransportLayer to test that the ServiceEntryPoint
* calls the expected methods on the TransportLayer in the expected order,
* and with the expected parameters.
*
* Usage:
*
* TEST_F(ServiceEntryPointTestSuite, ServiceEntryPointImplTest) {
* // Set up our ServiceEntryPoint
* auto sepFactory = [](TransportLayer* tl){
* return stdx::make_unique<ServiceEntryPointImpl>(tl);
* };
*
* setServiceEntryPoint(sepFactory);
*
* // Run some tests
* fullLifeCycleTest();
* }
*/
class ServiceEntryPointTestSuite : public mongo::unittest::Test {
public:
// Need a function that takes a TransportLayer* and returns a new
// ServiceEntryPoint
using ServiceEntryPointFactory =
stdx::function<std::unique_ptr<ServiceEntryPoint>(transport::TransportLayer*)>;
void setUp() override;
void setServiceEntryPoint(ServiceEntryPointFactory factory);
// Lifecycle Tests
void noLifeCycleTest();
void halfLifeCycleTest();
void fullLifeCycleTest();
// Concurrent Session Tests
void interruptingSessionTest();
// Stress Tests
void burstStressTest(int numSessions = 1000,
int numCycles = 1,
Milliseconds delay = Milliseconds(0));
void longSessionStressTest();
class SEPTestSession;
using SEPTestSessionHandle = std::shared_ptr<SEPTestSession>;
/**
* This class mocks the TransportLayer and allows us to insert hooks beneath
* its methods.
*/
class MockTLHarness : public transport::TransportLayer {
public:
friend class SEPTestSession;
MockTLHarness();
transport::Ticket sourceMessage(
const transport::SessionHandle& session,
Message* message,
Date_t expiration = transport::Ticket::kNoExpirationDate) override;
transport::Ticket sinkMessage(
const transport::SessionHandle& session,
const Message& message,
Date_t expiration = transport::Ticket::kNoExpirationDate) override;
Status wait(transport::Ticket&& ticket) override;
void asyncWait(transport::Ticket&& ticket, TicketCallback callback) override;
Stats sessionStats() override;
void end(const transport::SessionHandle& session) override;
Status setup() override;
Status start() override;
void shutdown() override;
transport::MockTicket* getMockTicket(const transport::Ticket& ticket);
// Mocked method hooks
stdx::function<transport::Ticket(const transport::SessionHandle&, Message*, Date_t)>
_sourceMessage;
stdx::function<transport::Ticket(const transport::SessionHandle&, const Message&, Date_t)>
_sinkMessage;
stdx::function<Status(transport::Ticket)> _wait;
stdx::function<void(transport::Ticket, TicketCallback)> _asyncWait;
stdx::function<void(const transport::SessionHandle&)> _end;
stdx::function<void(SEPTestSession& session)> _destroy_hook;
stdx::function<Status(void)> _start = [] { return Status::OK(); };
stdx::function<void(void)> _shutdown = [] {};
// Pre-set hook methods
transport::Ticket _defaultSource(const transport::SessionHandle& s, Message* m, Date_t d);
transport::Ticket _defaultSink(const transport::SessionHandle& s, const Message&, Date_t d);
transport::Ticket _sinkThenErrorOnWait(const transport::SessionHandle& s,
const Message& m,
Date_t d);
Status _defaultWait(transport::Ticket ticket);
Status _waitError(transport::Ticket ticket);
Status _waitOnceThenError(transport::Ticket ticket);
// Reset all hooks to their defaults
void _resetHooks();
private:
void _destroy(SEPTestSession& session);
};
/**
* A light wrapper around the mock session class, to handle our destroy logic.
*/
class SEPTestSession : public transport::MockSession {
MockTLHarness* _mockTL;
public:
static std::shared_ptr<SEPTestSession> create(MockTLHarness* tl) {
std::shared_ptr<SEPTestSession> handle(new SEPTestSession(tl));
return handle;
}
~SEPTestSession() {
_mockTL->_destroy(*this);
}
private:
explicit SEPTestSession(MockTLHarness* tl) : transport::MockSession(tl), _mockTL(tl) {}
};
private:
std::unique_ptr<MockTLHarness> _tl;
std::unique_ptr<ServiceEntryPoint> _sep;
};
} // namespace mongo
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