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/**
* Copyright (C) 2012 10gen 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/>.
*/
#include "mongo/pch.h"
#include "mongo/db/jsobj.h"
#include "mongo/s/chunk_version.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
/**
* Tests parsing of BSON for versions. In version 2.2, this parsing is meant to be very
* flexible so different formats can be tried and enforced later.
*
* Formats are:
*
* A) { vFieldName : <TSTYPE>, [ vFieldNameEpoch : <OID> ], ... }
* B) { fieldName : [ <TSTYPE>, <OID> ], ... }
*
* vFieldName is a specifyable name - usually "version" (default) or "lastmod". <TSTYPE> is a
* type convertible to Timestamp, ideally Timestamp but also numeric.
* <OID> is a value of type OID.
*
*/
TEST(Compatibility, LegacyFormatA) {
BSONObjBuilder versionObjB;
versionObjB.appendTimestamp( "testVersion",
ChunkVersion( 1, 1, OID() ).toLong() );
versionObjB.append( "testVersionEpoch", OID::gen() );
BSONObj versionObj = versionObjB.obj();
ChunkVersion parsed =
ChunkVersion::fromBSON( versionObj[ "testVersion" ] );
ASSERT( ChunkVersion::canParseBSON( versionObj[ "testVersion" ] ) );
ASSERT( parsed.majorVersion() == 1 );
ASSERT( parsed.minorVersion() == 1 );
ASSERT( ! parsed.epoch().isSet() );
parsed = ChunkVersion::fromBSON( versionObj, "testVersion" );
ASSERT( ChunkVersion::canParseBSON( versionObj, "testVersion" ) );
ASSERT( parsed.majorVersion() == 1 );
ASSERT( parsed.minorVersion() == 1 );
ASSERT( parsed.epoch().isSet() );
}
TEST(Compatibility, SubArrayFormatB) {
BSONObjBuilder tsObjB;
tsObjB.appendTimestamp( "ts", ChunkVersion( 1, 1, OID() ).toLong() );
BSONObj tsObj = tsObjB.obj();
BSONObjBuilder versionObjB;
BSONArrayBuilder subArrB( versionObjB.subarrayStart( "testVersion" ) );
// Append this weird way so we're sure we get a timestamp type
subArrB.append( tsObj.firstElement() );
subArrB.append( OID::gen() );
subArrB.done();
BSONObj versionObj = versionObjB.obj();
ChunkVersion parsed =
ChunkVersion::fromBSON( versionObj[ "testVersion" ] );
ASSERT( ChunkVersion::canParseBSON( versionObj[ "testVersion" ] ) );
ASSERT( ChunkVersion::canParseBSON( BSONArray( versionObj[ "testVersion" ].Obj() ) ) );
ASSERT( parsed.majorVersion() == 1 );
ASSERT( parsed.minorVersion() == 1 );
ASSERT( parsed.epoch().isSet() );
}
} // unnamed namespace
} // namespace mongo
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