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/**
* Copyright (C) 2023-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 <memory>
#include "mongo/platform/atomic_word.h"
#include "mongo/rpc/message.h"
#include "mongo/rpc/op_msg.h"
#include "mongo/transport/grpc/grpc_session.h"
#include "mongo/transport/grpc/test_fixtures.h"
#include "mongo/unittest/death_test.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/net/hostandport.h"
namespace mongo::transport::grpc {
namespace {
class SessionTest : public ServiceContextWithClockSourceMockTest {
public:
auto makeMessage() {
OpMsg msg;
msg.body = BSON("id" << _nextMessage.fetchAndAdd(1));
return msg.serialize();
}
private:
AtomicWord<int> _nextMessage{0};
};
class IngressSessionTest : public SessionTest {
public:
static constexpr auto kStreamTimeout = Seconds(1);
static constexpr auto kClientId = "c08663ac-2f6c-408d-8829-97e67eef9f23";
static constexpr auto kRemote = "FakeHost:1234";
void setUp() override {
SessionTest::setUp();
// The MockStreamTestFixtures created here doesn't contain any references to the channel or
// server, so it's okay to let stubFixture go out of scope.
MockStubTestFixtures stubFixture;
_fixture = stubFixture.makeStreamTestFixtures(
getServiceContext()->getFastClockSource()->now() + kStreamTimeout, _clientMetadata);
}
void tearDown() override {
_fixture.reset();
}
auto fixture() {
return _fixture.get();
}
auto makeSession() {
auto swClientId = UUID::parse(kClientId);
ASSERT_OK(swClientId.getStatus());
return std::make_unique<IngressSession>(nullptr,
_fixture->serverCtx.get(),
_fixture->serverStream.get(),
swClientId.getValue());
}
private:
const MetadataView _clientMetadata = {{"foo", "bar"}};
std::unique_ptr<MockStreamTestFixtures> _fixture;
};
TEST_F(IngressSessionTest, NoClientId) {
auto session = std::make_unique<IngressSession>(
nullptr, fixture()->serverCtx.get(), fixture()->serverStream.get(), boost::none);
ASSERT_FALSE(session->clientId());
session->end();
}
TEST_F(IngressSessionTest, AlwaysCancelsStream) {
auto session = makeSession();
ASSERT_FALSE(fixture()->serverCtx->isCancelled());
session.reset();
ASSERT_TRUE(fixture()->serverCtx->isCancelled());
}
TEST_F(IngressSessionTest, GetClientId) {
auto session = makeSession();
ASSERT_TRUE(session->clientId());
ASSERT_EQ(session->clientId()->toString(), kClientId);
}
TEST_F(IngressSessionTest, GetRemote) {
auto session = makeSession();
ASSERT_EQ(session->remote().toString(), MockStubTestFixtures::kClientAddress);
}
TEST_F(IngressSessionTest, IsConnected) {
auto session = makeSession();
ASSERT_TRUE(session->isConnected());
fixture()->serverCtx->tryCancel();
ASSERT_FALSE(session->isConnected());
}
TEST_F(IngressSessionTest, End) {
auto session = makeSession();
session->end();
ASSERT_FALSE(session->isConnected());
ASSERT_TRUE(session->terminationStatus());
ASSERT_OK(*session->terminationStatus());
}
TEST_F(IngressSessionTest, TerminateWithError) {
const Status error(ErrorCodes::InternalError, "Some Error");
auto session = makeSession();
session->terminate(error);
ASSERT_FALSE(session->isConnected());
ASSERT_TRUE(session->terminationStatus());
ASSERT_EQ(*session->terminationStatus(), error);
ASSERT_TRUE(fixture()->serverCtx->isCancelled());
}
TEST_F(IngressSessionTest, TerminateRetainsStatus) {
const Status error(ErrorCodes::InternalError, "Some Error");
auto session = makeSession();
session->terminate(error);
session->end();
ASSERT_EQ(*session->terminationStatus(), error);
}
TEST_F(IngressSessionTest, ReadAndWrite) {
auto session = makeSession();
{
auto msg = makeMessage();
fixture()->clientStream->write(msg.sharedBuffer());
auto swReceived = session->sourceMessage();
ASSERT_OK(swReceived.getStatus());
ASSERT_EQ_MSG(swReceived.getValue(), msg);
}
{
auto msg = makeMessage();
ASSERT_OK(session->sinkMessage(msg));
auto sent = fixture()->clientStream->read();
ASSERT_TRUE(sent);
ASSERT_EQ_MSG(Message{*sent}, msg);
}
}
TEST_F(IngressSessionTest, ReadFromClosedStream) {
auto session = makeSession();
fixture()->serverCtx->tryCancel();
auto swReceived = session->sourceMessage();
ASSERT_EQ(swReceived.getStatus(), ErrorCodes::StreamTerminated);
}
TEST_F(IngressSessionTest, ReadTimesOut) {
auto session = makeSession();
clockSource().advance(2 * kStreamTimeout);
auto swReceived = session->sourceMessage();
ASSERT_EQ(swReceived.getStatus(), ErrorCodes::StreamTerminated);
}
TEST_F(IngressSessionTest, WriteToClosedStream) {
auto session = makeSession();
fixture()->serverCtx->tryCancel();
ASSERT_EQ(session->sinkMessage(Message{}), ErrorCodes::StreamTerminated);
}
TEST_F(IngressSessionTest, WriteTimesOut) {
auto session = makeSession();
clockSource().advance(2 * kStreamTimeout);
ASSERT_EQ(session->sinkMessage(Message{}), ErrorCodes::StreamTerminated);
}
} // namespace
} // namespace mongo::transport::grpc
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