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Diffstat (limited to 'src/mongo/db/pipeline/document_source_lookup_test.cpp')
| -rw-r--r-- | src/mongo/db/pipeline/document_source_lookup_test.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/document_source_lookup_test.cpp b/src/mongo/db/pipeline/document_source_lookup_test.cpp new file mode 100644 index 00000000000..2ab28f3e392 --- /dev/null +++ b/src/mongo/db/pipeline/document_source_lookup_test.cpp @@ -0,0 +1,129 @@ +/** + * 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. + */ + +#include "mongo/platform/basic.h" + +#include <boost/intrusive_ptr.hpp> +#include <vector> + +#include "mongo/bson/bsonmisc.h" +#include "mongo/bson/bsonobj.h" +#include "mongo/bson/bsonobjbuilder.h" +#include "mongo/db/pipeline/aggregation_context_fixture.h" +#include "mongo/db/pipeline/document.h" +#include "mongo/db/pipeline/document_source.h" +#include "mongo/db/pipeline/field_path.h" +#include "mongo/db/pipeline/value.h" + +namespace mongo { +namespace { +using boost::intrusive_ptr; +using std::vector; + +// This provides access to getExpCtx(), but we'll use a different name for this test suite. +using DocumentSourceLookUpTest = AggregationContextFixture; + +TEST_F(DocumentSourceLookUpTest, ShouldTruncateOutputSortOnAsField) { + intrusive_ptr<DocumentSourceMock> source = DocumentSourceMock::create(); + source->sorts = {BSON("a" << 1 << "d.e" << 1 << "c" << 1)}; + auto lookup = DocumentSourceLookUp::createFromBson( + Document{ + {"$lookup", + Document{{"from", "a"}, {"localField", "b"}, {"foreignField", "c"}, {"as", "d.e"}}}} + .toBson() + .firstElement(), + getExpCtx()); + lookup->setSource(source.get()); + + BSONObjSet outputSort = lookup->getOutputSorts(); + + ASSERT_EQUALS(outputSort.count(BSON("a" << 1)), 1U); + ASSERT_EQUALS(outputSort.size(), 1U); +} + +TEST_F(DocumentSourceLookUpTest, ShouldTruncateOutputSortOnSuffixOfAsField) { + intrusive_ptr<DocumentSourceMock> source = DocumentSourceMock::create(); + source->sorts = {BSON("a" << 1 << "d.e" << 1 << "c" << 1)}; + auto lookup = DocumentSourceLookUp::createFromBson( + Document{{"$lookup", + Document{{"from", "a"}, {"localField", "b"}, {"foreignField", "c"}, {"as", "d"}}}} + .toBson() + .firstElement(), + getExpCtx()); + lookup->setSource(source.get()); + + BSONObjSet outputSort = lookup->getOutputSorts(); + + ASSERT_EQUALS(outputSort.count(BSON("a" << 1)), 1U); + ASSERT_EQUALS(outputSort.size(), 1U); +} + +TEST(MakeMatchStageFromInput, NonArrayValueUsesEqQuery) { + auto input = Document{{"local", 1}}; + BSONObj matchStage = DocumentSourceLookUp::makeMatchStageFromInput( + input, FieldPath("local"), "foreign", BSONObj()); + ASSERT_BSONOBJ_EQ(matchStage, fromjson("{$match: {$and: [{foreign: {$eq: 1}}, {}]}}")); +} + +TEST(MakeMatchStageFromInput, RegexValueUsesEqQuery) { + BSONRegEx regex("^a"); + Document input = DOC("local" << Value(regex)); + BSONObj matchStage = DocumentSourceLookUp::makeMatchStageFromInput( + input, FieldPath("local"), "foreign", BSONObj()); + ASSERT_BSONOBJ_EQ( + matchStage, + BSON("$match" << BSON( + "$and" << BSON_ARRAY(BSON("foreign" << BSON("$eq" << regex)) << BSONObj())))); +} + +TEST(MakeMatchStageFromInput, ArrayValueUsesInQuery) { + vector<Value> inputArray = {Value(1), Value(2)}; + Document input = DOC("local" << Value(inputArray)); + BSONObj matchStage = DocumentSourceLookUp::makeMatchStageFromInput( + input, FieldPath("local"), "foreign", BSONObj()); + ASSERT_BSONOBJ_EQ(matchStage, fromjson("{$match: {$and: [{foreign: {$in: [1, 2]}}, {}]}}")); +} + +TEST(MakeMatchStageFromInput, ArrayValueWithRegexUsesOrQuery) { + BSONRegEx regex("^a"); + vector<Value> inputArray = {Value(1), Value(regex), Value(2)}; + Document input = DOC("local" << Value(inputArray)); + BSONObj matchStage = DocumentSourceLookUp::makeMatchStageFromInput( + input, FieldPath("local"), "foreign", BSONObj()); + ASSERT_BSONOBJ_EQ( + matchStage, + BSON("$match" << BSON( + "$and" << BSON_ARRAY( + BSON("$or" << BSON_ARRAY(BSON("foreign" << BSON("$eq" << Value(1))) + << BSON("foreign" << BSON("$eq" << regex)) + << BSON("foreign" << BSON("$eq" << Value(2))))) + << BSONObj())))); +} + +} // namespace +} // namespace mongo |