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/**
* Copyright (C) 2020-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.
*/
#pragma once
#include "mongo/db/pipeline/document_source.h"
#include "mongo/db/pipeline/expression_context_for_test.h"
#include "mongo/db/pipeline/process_interface/stub_mongo_process_interface.h"
#include "mongo/s/catalog_cache_test_fixture.h"
#include "mongo/util/clock_source_mock.h"
namespace mongo {
/**
* For the purposes of this test, assume every collection is sharded. Stages may ask this during
* setup. For example, to compute its constraints, the $merge stage needs to know if the output
* collection is sharded.
*/
class FakeMongoProcessInterface : public StubMongoProcessInterface {
public:
using StubMongoProcessInterface::StubMongoProcessInterface;
bool isSharded(OperationContext* opCtx, const NamespaceString& ns) override {
return true;
}
};
class ShardedAggTestFixture : public CatalogCacheTestFixture {
public:
const NamespaceString kTestAggregateNss = NamespaceString{"unittests", "sharded_agg_test"};
void setUp() {
CatalogCacheTestFixture::setUp();
_expCtx = make_intrusive<ExpressionContextForTest>(operationContext(), kTestAggregateNss);
_expCtx->mongoProcessInterface = std::make_shared<FakeMongoProcessInterface>(executor());
_expCtx->inMongos = true;
}
boost::intrusive_ptr<ExpressionContext> expCtx() {
return _expCtx;
}
boost::intrusive_ptr<DocumentSource> parseStage(const std::string& json) {
return parseStage(fromjson(json));
}
boost::intrusive_ptr<DocumentSource> parseStage(const BSONObj& spec) {
auto stages = DocumentSource::parse(_expCtx, spec);
ASSERT_EQ(stages.size(), 1UL);
return stages.front();
}
std::vector<ChunkType> makeChunks(const UUID& uuid,
const OID epoch,
const Timestamp timestamp,
std::vector<std::pair<ChunkRange, ShardId>> chunkInfos) {
ChunkVersion version({epoch, timestamp}, {1, 0});
std::vector<ChunkType> chunks;
for (auto&& pair : chunkInfos) {
chunks.emplace_back(uuid, pair.first, version, pair.second);
chunks.back().setName(OID::gen());
version.incMinor();
}
return chunks;
}
void loadRoutingTable(NamespaceString nss,
const OID epoch,
const Timestamp timestamp,
const ShardKeyPattern& shardKey,
const std::vector<ChunkType>& chunkDistribution) {
auto future = scheduleRoutingInfoUnforcedRefresh(nss);
// Mock the expected config server queries.
expectGetDatabase(nss);
expectCollectionAndChunksAggregation(
nss, epoch, timestamp, UUID::gen(), shardKey, chunkDistribution);
const auto cm = future.default_timed_get();
ASSERT(cm->isSharded());
}
protected:
boost::intrusive_ptr<ExpressionContext> _expCtx;
};
} // namespace mongo
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