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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.
*/
#include "mongo/platform/basic.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobj_comparator_interface.h"
#include "mongo/db/exec/document_value/document.h"
#include "mongo/db/pipeline/aggregation_context_fixture.h"
#include "mongo/db/pipeline/expression_internal_remove_field_tombstones.h"
#include "mongo/unittest/unittest.h"
namespace mongo::expression_internal_tests {
class ExpressionInternalRemoveFieldTombstonesTest : public AggregationContextFixture {
public:
auto createExpression() {
auto expr = make_intrusive<ExpressionInternalRemoveFieldTombstones>(
getExpCtx(),
ExpressionFieldPath::parse(getExpCtx(), "$$ROOT", getExpCtx()->variablesParseState));
return expr;
}
};
TEST_F(ExpressionInternalRemoveFieldTombstonesTest, RemovesTombstoneValues) {
auto expr = createExpression();
Document input =
DOC("a" << Value() << "b" << 1 << "c" << Value() << "d" << 2 << "e" << Value());
BSONObj expected = BSON("b" << 1 << "d" << 2);
ASSERT_BSONOBJ_EQ(expr->evaluate(input, &getExpCtx()->variables).getDocument().toBson(),
expected);
}
TEST_F(ExpressionInternalRemoveFieldTombstonesTest, RemovesNestedTombstoneValues) {
auto expr = createExpression();
Document input =
DOC("a" << 1 << "b" << DOC("c" << 2 << "d" << Value() << "e" << Value()) << "f" << 2);
BSONObj expected = BSON("a" << 1 << "b" << BSON("c" << 2) << "f" << 2);
ASSERT_BSONOBJ_EQ(expr->evaluate(input, &getExpCtx()->variables).getDocument().toBson(),
expected);
input = DOC("a" << 1 << "b" << DOC("c" << DOC("d" << Value() << "e" << 5)) << "f" << 2);
expected = BSON("a" << 1 << "b" << BSON("c" << BSON("e" << 5)) << "f" << 2);
ASSERT_BSONOBJ_EQ(expr->evaluate(input, &getExpCtx()->variables).getDocument().toBson(),
expected);
}
} // namespace mongo::expression_internal_tests
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