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/**
* Copyright (C) 2019-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/platform/basic.h"
#include "mongo/bson/bson_depth.h"
#include "mongo/bson/bsonelement.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/json.h"
#include "mongo/db/exec/document_value/document_value_test_util.h"
#include "mongo/db/pipeline/aggregation_context_fixture.h"
#include "mongo/db/pipeline/document_source_mock.h"
#include "mongo/db/pipeline/document_source_sequential_document_cache.h"
#include "mongo/unittest/bson_test_util.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
// This provides access to getExpCtx(), but we'll use a different name for this test suite.
using DocumentSourceSequentialDocumentCacheTest = AggregationContextFixture;
const long long kDefaultMaxCacheSize = internalDocumentSourceLookupCacheSizeBytes.load();
TEST_F(DocumentSourceSequentialDocumentCacheTest, ReturnsEOFOnSubsequentCallsAfterSourceExhausted) {
SequentialDocumentCache cache(kDefaultMaxCacheSize);
auto documentCache = DocumentSourceSequentialDocumentCache::create(getExpCtx(), &cache);
auto source = DocumentSourceMock::createForTest({"{a: 1, b: 2}", "{a: 3, b: 4}"}, getExpCtx());
documentCache->setSource(source.get());
ASSERT(documentCache->getNext().isAdvanced());
ASSERT(documentCache->getNext().isAdvanced());
ASSERT(documentCache->getNext().isEOF());
ASSERT(documentCache->getNext().isEOF());
}
TEST_F(DocumentSourceSequentialDocumentCacheTest, ReturnsEOFAfterCacheExhausted) {
SequentialDocumentCache cache(kDefaultMaxCacheSize);
cache.add(DOC("_id" << 0));
cache.add(DOC("_id" << 1));
cache.freeze();
auto documentCache = DocumentSourceSequentialDocumentCache::create(getExpCtx(), &cache);
ASSERT(cache.isServing());
ASSERT(documentCache->getNext().isAdvanced());
ASSERT(documentCache->getNext().isAdvanced());
ASSERT(documentCache->getNext().isEOF());
ASSERT(documentCache->getNext().isEOF());
}
TEST_F(DocumentSourceSequentialDocumentCacheTest, Redaction) {
SequentialDocumentCache cache(kDefaultMaxCacheSize);
cache.add(DOC("_id" << 0));
cache.add(DOC("_id" << 1));
auto documentCache = DocumentSourceSequentialDocumentCache::create(getExpCtx(), &cache);
std::vector<Value> vals;
ASSERT_BSONOBJ_EQ_AUTO( // NOLINT
R"({"$sequentialCache":{"maxSizeBytes":"?","status":"kBuilding"}})",
redact(*documentCache, true, ExplainOptions::Verbosity::kQueryPlanner));
cache.freeze();
ASSERT_BSONOBJ_EQ_AUTO( // NOLINT
R"({"$sequentialCache":{"maxSizeBytes":"?","status":"kServing"}})",
redact(*documentCache, true, ExplainOptions::Verbosity::kQueryPlanner));
cache.abandon();
ASSERT_BSONOBJ_EQ_AUTO( // NOLINT
R"({"$sequentialCache":{"maxSizeBytes":"?","status":"kAbandoned"}})",
redact(*documentCache, true, ExplainOptions::Verbosity::kQueryPlanner));
}
} // namespace
} // namespace mongo
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