/**
* 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 .
*
* 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/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 : , [ vFieldNameEpoch : ], ... }
* B) { fieldName : [ , ], ... }
*
* vFieldName is a specifyable name - usually "version" (default) or "lastmod". is a
* type convertible to Timestamp, ideally Timestamp but also numeric.
* 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());
}
TEST(Comparison, StrictEqual) {
OID epoch = OID::gen();
ASSERT(ChunkVersion(3, 1, epoch).isStrictlyEqualTo(ChunkVersion(3, 1, epoch)));
ASSERT(!ChunkVersion(3, 1, epoch).isStrictlyEqualTo(ChunkVersion(3, 1, OID())));
ASSERT(!ChunkVersion(3, 1, OID()).isStrictlyEqualTo(ChunkVersion(3, 1, epoch)));
ASSERT(ChunkVersion(3, 1, OID()).isStrictlyEqualTo(ChunkVersion(3, 1, OID())));
ASSERT(!ChunkVersion(4, 2, epoch).isStrictlyEqualTo(ChunkVersion(4, 1, epoch)));
}
TEST(Comparison, OlderThan) {
OID epoch = OID::gen();
ASSERT(ChunkVersion(3, 1, epoch).isOlderThan(ChunkVersion(4, 1, epoch)));
ASSERT(!ChunkVersion(4, 1, epoch).isOlderThan(ChunkVersion(3, 1, epoch)));
ASSERT(ChunkVersion(3, 1, epoch).isOlderThan(ChunkVersion(3, 2, epoch)));
ASSERT(!ChunkVersion(3, 2, epoch).isOlderThan(ChunkVersion(3, 1, epoch)));
ASSERT(!ChunkVersion(3, 1, epoch).isOlderThan(ChunkVersion(4, 1, OID())));
ASSERT(!ChunkVersion(4, 1, OID()).isOlderThan(ChunkVersion(3, 1, epoch)));
ASSERT(ChunkVersion(3, 2, epoch).isOlderThan(ChunkVersion(4, 1, epoch)));
ASSERT(!ChunkVersion(3, 1, epoch).isOlderThan(ChunkVersion(3, 1, epoch)));
}
} // unnamed namespace
} // namespace mongo