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Diffstat (limited to 'src/mongo/db/pipeline/document_source_union_with_test.cpp')
| -rw-r--r-- | src/mongo/db/pipeline/document_source_union_with_test.cpp | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/document_source_union_with_test.cpp b/src/mongo/db/pipeline/document_source_union_with_test.cpp new file mode 100644 index 00000000000..d45e9ce4f87 --- /dev/null +++ b/src/mongo/db/pipeline/document_source_union_with_test.cpp @@ -0,0 +1,300 @@ +/** + * Copyright (C) 2018-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 <array> +#include <deque> +#include <list> +#include <set> +#include <vector> + +#include "mongo/db/exec/document_value/document.h" +#include "mongo/db/exec/document_value/document_comparator.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.h" +#include "mongo/db/pipeline/document_source_add_fields.h" +#include "mongo/db/pipeline/document_source_match.h" +#include "mongo/db/pipeline/document_source_mock.h" +#include "mongo/db/pipeline/document_source_union_with.h" +#include "mongo/db/pipeline/pipeline.h" +#include "mongo/db/pipeline/stub_mongo_process_interface_lookup_single_document.h" +#include "mongo/unittest/unittest.h" +#include "mongo/util/intrusive_counter.h" + +namespace mongo { +namespace { + +using MockMongoInterface = StubMongoProcessInterfaceLookupSingleDocument; + +// This provides access to getExpCtx(), but we'll use a different name for this test suite. +using DocumentSourceUnionWithTest = AggregationContextFixture; + +TEST_F(DocumentSourceUnionWithTest, BasicSerialUnions) { + const auto docs = std::array{Document{{"a", 1}}, Document{{"b", 1}}, Document{{"c", 1}}}; + const auto mock = DocumentSourceMock::createForTest(docs[0]); + const auto mockDequeOne = std::deque<DocumentSource::GetNextResult>{Document{docs[1]}}; + const auto mockDequeTwo = std::deque<DocumentSource::GetNextResult>{Document{docs[2]}}; + const auto mockCtxOne = getExpCtx()->copyWith({}); + mockCtxOne->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeOne); + const auto mockCtxTwo = getExpCtx()->copyWith({}); + mockCtxTwo->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeTwo); + auto unionWithOne = DocumentSourceUnionWith( + mockCtxOne, + uassertStatusOK( + Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{}, getExpCtx()))); + auto unionWithTwo = DocumentSourceUnionWith( + mockCtxTwo, + uassertStatusOK( + Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{}, getExpCtx()))); + unionWithOne.setSource(mock.get()); + unionWithTwo.setSource(&unionWithOne); + + auto results = DocumentComparator().makeUnorderedDocumentSet(); + for (auto& doc [[maybe_unused]] : docs) { + auto next = unionWithTwo.getNext(); + ASSERT_TRUE(next.isAdvanced()); + const auto [ignored, inserted] = results.insert(next.releaseDocument()); + ASSERT_TRUE(inserted); + } + for (const auto& doc : docs) + ASSERT_TRUE(results.find(doc) != results.end()); + + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); +} + +TEST_F(DocumentSourceUnionWithTest, BasicNestedUnions) { + const auto docs = std::array{Document{{"a", 1}}, Document{{"b", 1}}, Document{{"c", 1}}}; + const auto mock = DocumentSourceMock::createForTest(docs[0]); + const auto mockDequeOne = std::deque<DocumentSource::GetNextResult>{Document{docs[1]}}; + const auto mockDequeTwo = std::deque<DocumentSource::GetNextResult>{Document{docs[2]}}; + const auto mockCtxOne = getExpCtx()->copyWith({}); + mockCtxOne->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeOne); + const auto mockCtxTwo = getExpCtx()->copyWith({}); + mockCtxTwo->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeTwo); + auto unionWithOne = make_intrusive<DocumentSourceUnionWith>( + mockCtxOne, + uassertStatusOK( + Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{}, getExpCtx()))); + auto unionWithTwo = DocumentSourceUnionWith( + mockCtxTwo, + uassertStatusOK(Pipeline::create( + std::list<boost::intrusive_ptr<DocumentSource>>{unionWithOne}, getExpCtx()))); + unionWithTwo.setSource(mock.get()); + + auto results = DocumentComparator().makeUnorderedDocumentSet(); + for (auto& doc [[maybe_unused]] : docs) { + auto next = unionWithTwo.getNext(); + ASSERT_TRUE(next.isAdvanced()); + const auto [ignored, inserted] = results.insert(next.releaseDocument()); + ASSERT_TRUE(inserted); + } + for (const auto& doc : docs) + ASSERT_TRUE(results.find(doc) != results.end()); + + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); +} + +TEST_F(DocumentSourceUnionWithTest, UnionsWithNonEmptySubPipelines) { + const auto inputDocs = std::array{Document{{"a", 1}}, Document{{"b", 1}}, Document{{"c", 1}}}; + const auto outputDocs = std::array{Document{{"a", 1}}, Document{{"c", 1}, {"d", 1}}}; + const auto mock = DocumentSourceMock::createForTest(inputDocs[0]); + const auto mockDequeOne = std::deque<DocumentSource::GetNextResult>{Document{inputDocs[1]}}; + const auto mockDequeTwo = std::deque<DocumentSource::GetNextResult>{Document{inputDocs[2]}}; + const auto mockCtxOne = getExpCtx()->copyWith({}); + mockCtxOne->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeOne); + const auto mockCtxTwo = getExpCtx()->copyWith({}); + mockCtxTwo->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeTwo); + const auto filter = DocumentSourceMatch::create(BSON("d" << 1), mockCtxOne); + const auto proj = DocumentSourceAddFields::create(BSON("d" << 1), mockCtxTwo); + auto unionWithOne = DocumentSourceUnionWith( + mockCtxOne, + uassertStatusOK(Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{filter}, + getExpCtx()))); + auto unionWithTwo = DocumentSourceUnionWith( + mockCtxTwo, + uassertStatusOK( + Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{proj}, getExpCtx()))); + unionWithOne.setSource(mock.get()); + unionWithTwo.setSource(&unionWithOne); + + auto results = DocumentComparator().makeUnorderedDocumentSet(); + for (auto& doc [[maybe_unused]] : outputDocs) { + auto next = unionWithTwo.getNext(); + ASSERT_TRUE(next.isAdvanced()); + const auto [ignored, inserted] = results.insert(next.releaseDocument()); + ASSERT_TRUE(inserted); + } + for (const auto& doc : outputDocs) + ASSERT_TRUE(results.find(doc) != results.end()); + + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); +} + +TEST_F(DocumentSourceUnionWithTest, SerializeAndParseWithPipeline) { + auto bson = + BSON("$unionWith" << BSON("coll" + << "foo" + << "pipeline" + << BSON_ARRAY( + BSON("$addFields" << BSON("a" << BSON("$const" << 3)))))); + auto unionWith = DocumentSourceUnionWith::createFromBson(bson.firstElement(), getExpCtx()); + ASSERT(unionWith->getSourceName() == DocumentSourceUnionWith::kStageName); + std::vector<Value> serializedArray; + unionWith->serializeToArray(serializedArray); + auto serializedBson = serializedArray[0].getDocument().toBson(); + ASSERT_BSONOBJ_EQ(serializedBson, bson); + unionWith = DocumentSourceUnionWith::createFromBson(serializedBson.firstElement(), getExpCtx()); + ASSERT(unionWith != nullptr); + ASSERT(unionWith->getSourceName() == DocumentSourceUnionWith::kStageName); +} + +TEST_F(DocumentSourceUnionWithTest, SerializeAndParseWithoutPipeline) { + auto bson = BSON("$unionWith" + << "foo"); + auto desugaredBson = BSON("$unionWith" << BSON("coll" + << "foo" + << "pipeline" << BSONArray())); + auto unionWith = DocumentSourceUnionWith::createFromBson(bson.firstElement(), getExpCtx()); + ASSERT(unionWith->getSourceName() == DocumentSourceUnionWith::kStageName); + std::vector<Value> serializedArray; + unionWith->serializeToArray(serializedArray); + auto serializedBson = serializedArray[0].getDocument().toBson(); + ASSERT_BSONOBJ_EQ(serializedBson, desugaredBson); + unionWith = DocumentSourceUnionWith::createFromBson(serializedBson.firstElement(), getExpCtx()); + ASSERT(unionWith != nullptr); + ASSERT(unionWith->getSourceName() == DocumentSourceUnionWith::kStageName); +} + +TEST_F(DocumentSourceUnionWithTest, SerializeAndParseWithoutPipelineExtraSubobject) { + auto bson = BSON("$unionWith" << BSON("coll" + << "foo")); + auto desugaredBson = BSON("$unionWith" << BSON("coll" + << "foo" + << "pipeline" << BSONArray())); + auto unionWith = DocumentSourceUnionWith::createFromBson(bson.firstElement(), getExpCtx()); + ASSERT(unionWith->getSourceName() == DocumentSourceUnionWith::kStageName); + std::vector<Value> serializedArray; + unionWith->serializeToArray(serializedArray); + auto serializedBson = serializedArray[0].getDocument().toBson(); + ASSERT_BSONOBJ_EQ(serializedBson, desugaredBson); + unionWith = DocumentSourceUnionWith::createFromBson(serializedBson.firstElement(), getExpCtx()); + ASSERT(unionWith != nullptr); + ASSERT(unionWith->getSourceName() == DocumentSourceUnionWith::kStageName); +} + +TEST_F(DocumentSourceUnionWithTest, ParseErrors) { + ASSERT_THROWS_CODE(DocumentSourceUnionWith::createFromBson( + BSON("$unionWith" << false).firstElement(), getExpCtx()), + AssertionException, + ErrorCodes::FailedToParse); + ASSERT_THROWS_CODE(DocumentSourceUnionWith::createFromBson(BSON("$unionWith" << BSON("coll" + << "foo" + << "coll" + << "bar")) + .firstElement(), + getExpCtx()), + AssertionException, + ErrorCodes::FailedToParse); + ASSERT_THROWS_CODE( + DocumentSourceUnionWith::createFromBson( + BSON("$unionWith" << BSON("coll" + << "foo" + << "pipeline" + << BSON_ARRAY(BSON("$addFields" << BSON("a" << 3))) << "coll" + << "bar")) + .firstElement(), + getExpCtx()), + AssertionException, + ErrorCodes::FailedToParse); + ASSERT_THROWS_CODE( + DocumentSourceUnionWith::createFromBson( + BSON("$unionWith" << BSON("coll" + << "foo" + << "pipeline" + << BSON_ARRAY(BSON("$addFields" << BSON("a" << 3))) << "myDog" + << "bar")) + .firstElement(), + getExpCtx()), + AssertionException, + ErrorCodes::FailedToParse); + ASSERT_THROWS_CODE( + DocumentSourceUnionWith::createFromBson( + BSON("$unionWith" << BSON("coll" + << "foo" + << "pipeline" + << BSON_ARRAY(BSON("$petMyDog" << BSON("myDog" << 3))))) + .firstElement(), + getExpCtx()), + AssertionException, + 16436); +} + +TEST_F(DocumentSourceUnionWithTest, PropagatePauses) { + const auto mock = + DocumentSourceMock::createForTest({Document(), + DocumentSource::GetNextResult::makePauseExecution(), + Document(), + DocumentSource::GetNextResult::makePauseExecution()}); + const auto mockDequeOne = std::deque<DocumentSource::GetNextResult>{}; + const auto mockDequeTwo = std::deque<DocumentSource::GetNextResult>{}; + const auto mockCtxOne = getExpCtx()->copyWith({}); + mockCtxOne->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeOne); + const auto mockCtxTwo = getExpCtx()->copyWith({}); + mockCtxTwo->mongoProcessInterface = std::make_unique<MockMongoInterface>(mockDequeTwo); + auto unionWithOne = DocumentSourceUnionWith( + mockCtxOne, + uassertStatusOK( + Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{}, getExpCtx()))); + auto unionWithTwo = DocumentSourceUnionWith( + mockCtxTwo, + uassertStatusOK( + Pipeline::create(std::list<boost::intrusive_ptr<DocumentSource>>{}, getExpCtx()))); + unionWithOne.setSource(mock.get()); + unionWithTwo.setSource(&unionWithOne); + + ASSERT_TRUE(unionWithTwo.getNext().isAdvanced()); + ASSERT_TRUE(unionWithTwo.getNext().isPaused()); + ASSERT_TRUE(unionWithTwo.getNext().isAdvanced()); + ASSERT_TRUE(unionWithTwo.getNext().isPaused()); + + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); + ASSERT_TRUE(unionWithTwo.getNext().isEOF()); +} + +} // namespace +} // namespace mongo |