/**
 *    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/bsonobj.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/json.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/query/map_reduce_output_format.h"
#include "mongo/unittest/unittest.h"

using namespace std::literals::string_literals;

namespace mongo {
namespace {

TEST(MapReduceOutputFormat, FormatInlineMapReduceResponse) {
    BSONArrayBuilder documents;
    documents.append(BSON("a" << 1));
    documents.append(BSON("b" << 1));

    BSONObjBuilder builder;
    map_reduce_output_format::appendInlineResponse(documents.arr(), &builder);
    ASSERT_BSONOBJ_EQ(fromjson("{results: [{a: 1}, {b: 1}]}"), builder.obj());
}

TEST(MapReduceOutputFormat, FormatEmptyInlineMapReduceResponse) {
    BSONArrayBuilder documents;
    BSONObjBuilder builder;
    map_reduce_output_format::appendInlineResponse(documents.arr(), &builder);
    ASSERT_BSONOBJ_EQ(fromjson("{results: []}"), builder.obj());
}

TEST(MapReduceOutputFormat, FormatNonInlineMapReduceResponseWithoutDb) {
    BSONObjBuilder builder;
    map_reduce_output_format::appendOutResponse(boost::none, "c", &builder);
    ASSERT_BSONOBJ_EQ(fromjson("{result: \"c\"}"), builder.obj());
}

TEST(MapReduceOutputFormat, FormatNonInlineMapReduceResponseWithDb) {
    BSONObjBuilder builder;
    map_reduce_output_format::appendOutResponse("db"s, "c", &builder);
    ASSERT_BSONOBJ_EQ(fromjson("{result: {db: \"db\", collection: \"c\"}}"), builder.obj());
}

}  // namespace
}  // namespace mongo