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/**
 *    Copyright 2014 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/bson/util/bson_check.h"
#include "mongo/db/jsobj.h"
#include "mongo/unittest/unittest.h"

namespace mongo {
namespace {

    TEST(BsonCheck, CheckNothingLegal) {
        const char *const *nada = NULL;
        ASSERT_OK(bsonCheckOnlyHasFields("", BSONObj(), nada, nada));
        ASSERT_EQUALS(ErrorCodes::BadValue,
                      bsonCheckOnlyHasFields("", BSON("a" << 1), nada, nada));
    }

    const char *const legals[] = {
        "aField",
        "anotherField",
        "thirdField"
    };

    TEST(BsonCheck, CheckHasOnlyOnEmptyObject){
        ASSERT_OK(bsonCheckOnlyHasFields(
                          "",
                          BSONObj(),
                          legals));
    }

    TEST(BsonCheck, CheckHasOnlyLegalFields) {
        ASSERT_OK(bsonCheckOnlyHasFields(
                          "",
                          BSON("aField" << "value" << "thirdField" << 1 << "anotherField" << 2),
                          legals));
        ASSERT_OK(bsonCheckOnlyHasFields(
                          "",
                          BSON("aField" << "value" << "thirdField" << 1),
                          legals));

        ASSERT_EQUALS(ErrorCodes::BadValue, bsonCheckOnlyHasFields(
                              "",
                              BSON("aField" << "value" << "illegal" << 4 << "thirdField" << 1),
                              legals));
    }

    TEST(BsonCheck, CheckNoDuplicates) {
        ASSERT_EQUALS(ErrorCodes::DuplicateKey, bsonCheckOnlyHasFields(
                              "",
                              BSON("aField" << 1 << "anotherField" << 2 << "aField" << 3),
                              legals));
    }

}  // namespace
}  // namespace mongo