/**
 *    Copyright (C) 2017 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 "mongo/bson/bsonelement.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/uuid.h"

namespace mongo {
namespace {

TEST(BSONElement, BinDataToString) {
    BSONObjBuilder builder;
    unsigned char bintype0[] = {0xDE, 0xEA, 0xBE, 0xEF, 0x01};  // Random BinData shorter than UUID

    const UUID validUUID = UUID::gen();
    unsigned char zeroUUID[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
    unsigned char overlongUUID[] = {0xBF,
                                    0xF7,
                                    0x1F,
                                    0x75,
                                    0x04,
                                    0x67,
                                    0x45,
                                    0xA4,
                                    0x9A,
                                    0x06,
                                    0xE9,
                                    0xBB,
                                    0x02,
                                    0x72,
                                    0x81,
                                    0x64,
                                    0xff};  // Valid RFC4122v4 UUID, but with extra byte added.
    unsigned char zeroLength[1] = {0};      // Not truly zero because Windows doesn't support that.
    StringData unknownType = "binary data\000with an unknown type"_sd;  // No terminating zero
    const BinDataType unknownBinDataType = BinDataType(42);
    builder.appendBinData("bintype0", sizeof(bintype0), BinDataGeneral, bintype0);
    validUUID.appendToBuilder(&builder, "validUUID");
    builder.appendBinData("zeroUUID", sizeof(zeroUUID), newUUID, zeroUUID);
    builder.appendBinData("overlongUUID", sizeof(overlongUUID), newUUID, overlongUUID);
    builder.appendBinData("zeroLength", 0, BinDataGeneral, zeroLength);
    builder.appendBinData(
        "unknownType", unknownType.size(), unknownBinDataType, unknownType.rawData());

    BSONObj obj = builder.obj();
    ASSERT_EQ(obj["bintype0"].toString(), "bintype0: BinData(0, DEEABEEF01)");
    ASSERT_EQ(obj["validUUID"].toString(), "validUUID: UUID(\"" + validUUID.toString() + "\")");
    ASSERT_EQ(obj["zeroUUID"].toString(),
              "zeroUUID: UUID(\"00000000-0000-0000-0000-000000000000\")");
    ASSERT_EQ(obj["overlongUUID"].toString(),
              "overlongUUID: BinData(4, BFF71F75046745A49A06E9BB02728164FF)");
    ASSERT_EQ(obj["zeroLength"].toString(), "zeroLength: BinData(0, )");
    ASSERT_EQ(obj["unknownType"].toString(),
              "unknownType: BinData(42, "
              "62696E6172792064617461007769746820616E20756E6B6E6F776E2074797065)");
}


TEST(BSONElement, TimestampToString) {

    // Testing default BSONObj Timestamp method, which constructs an empty Timestamp
    const BSONElement b;
    auto ts = b.timestamp();
    ASSERT_EQ(ts.toString(), "Timestamp(0, 0)");

    BSONObjBuilder builder;
    builder.append("ts0", Timestamp(Seconds(100), 1U));
    builder.append("ts1", Timestamp(Seconds(50000), 25));
    builder.append("ts2", Timestamp(Seconds(100000), 1U));
    // Testing max allowable integer values
    builder.append("ts3", Timestamp::max());

    // Testing for correct format when printing BSONObj Timestamps
    // using .toString(includeFieldName = false, full = false)
    BSONObj obj = builder.obj();
    ASSERT_EQ(obj["ts0"].toString(false, false), "Timestamp(100, 1)");
    ASSERT_EQ(obj["ts1"].toString(false, false), "Timestamp(50000, 25)");
    ASSERT_EQ(obj["ts2"].toString(false, false), "Timestamp(100000, 1)");
    ASSERT_EQ(obj["ts3"].toString(false, false), "Timestamp(4294967295, 4294967295)");
}

}  // namespace
}  // namespace mongo