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/**
* Copyright (C) 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.
*/
/**
* This file contains tests for mongo/db/commands/mr.h
*/
#include "mongo/db/commands/mr.h"
#include <string>
#include "mongo/db/json.h"
#include "mongo/unittest/unittest.h"
using namespace mongo;
namespace {
/**
* Tests for mr::Config
*/
/**
* Helper function to verify field of mr::Config::OutputOptions.
*/
template <typename T> void _compareOutputOptionField(const std::string& dbname,
const std::string& cmdObjStr,
const std::string& fieldName,
const T& actual, const T& expected) {
if (actual == expected) return;
FAIL(str::stream() << "parseOutputOptions(\"" << dbname << ", " << cmdObjStr << "): "
<< fieldName << ": Expected: " << expected << ". Actual: " << actual);
}
/**
* Returns string representation of mr::Config::OutputType
*/
std::string _getOutTypeString(mr::Config::OutputType outType) {
switch (outType) {
case mr::Config::REPLACE: return "REPLACE";
case mr::Config::MERGE: return "MERGE";
case mr::Config::REDUCE: return "REDUCE";
case mr::Config::INMEMORY: return "INMEMORY";
}
invariant(0);
}
/**
* Test helper function to check expected result of parseOutputOptions.
*/
void _testConfigParseOutputOptions(const std::string& dbname, const std::string& cmdObjStr,
const std::string& expectedOutDb,
const std::string& expectedCollectionName,
const std::string& expectedFinalNamespace,
bool expectedOutNonAtomic,
mr::Config::OutputType expectedOutType) {
const BSONObj cmdObj = fromjson(cmdObjStr);
mr::Config::OutputOptions outputOptions = mr::Config::parseOutputOptions(dbname, cmdObj);
_compareOutputOptionField(dbname, cmdObjStr, "outDb", outputOptions.outDB, expectedOutDb);
_compareOutputOptionField(dbname, cmdObjStr, "collectionName",
outputOptions.collectionName, expectedCollectionName);
_compareOutputOptionField(dbname, cmdObjStr, "finalNamespace",
outputOptions.finalNamespace, expectedFinalNamespace);
_compareOutputOptionField(dbname, cmdObjStr, "outNonAtomic", outputOptions.outNonAtomic,
expectedOutNonAtomic);
_compareOutputOptionField(dbname, cmdObjStr, "outType",
_getOutTypeString(outputOptions.outType),
_getOutTypeString(expectedOutType));
}
/**
* Tests for mr::Config::parseOutputOptions.
*/
TEST(ConfigOutputOptionsTest, parseOutputOptions) {
// Missing 'out' field.
ASSERT_THROWS(mr::Config::parseOutputOptions("mydb", fromjson("{}")), UserException);
// 'out' must be either string or object.
ASSERT_THROWS(mr::Config::parseOutputOptions("mydb", fromjson("{out: 99}")),
UserException);
// 'out.nonAtomic' is not supported with normal, replace or inline.
ASSERT_THROWS(mr::Config::parseOutputOptions(
"mydb",
fromjson("{out: {normal: 'mycoll', nonAtomic: true}}")),
UserException);
ASSERT_THROWS(mr::Config::parseOutputOptions(
"mydb",
fromjson("{out: {replace: 'mycoll', nonAtomic: true}}")),
UserException);
ASSERT_THROWS(mr::Config::parseOutputOptions(
"mydb",
fromjson("{out: {inline: 'mycoll', nonAtomic: true}}")),
UserException);
// Unknown output specifer.
ASSERT_THROWS(mr::Config::parseOutputOptions(
"mydb",
fromjson("{out: {no_such_out_type: 'mycoll'}}")),
UserException);
// 'out' is string.
_testConfigParseOutputOptions("mydb", "{out: 'mycoll'}",
"", "mycoll", "mydb.mycoll", false, mr::Config::REPLACE);
// 'out' is object.
_testConfigParseOutputOptions("mydb", "{out: {normal: 'mycoll'}}",
"", "mycoll", "mydb.mycoll", false, mr::Config::REPLACE);
// 'out.db' overrides dbname parameter
_testConfigParseOutputOptions("mydb1", "{out: {replace: 'mycoll', db: 'mydb2'}}",
"mydb2", "mycoll", "mydb2.mycoll", false,
mr::Config::REPLACE);
// 'out.nonAtomic' is supported with merge and reduce.
_testConfigParseOutputOptions("mydb", "{out: {merge: 'mycoll', nonAtomic: true}}",
"", "mycoll", "mydb.mycoll", true, mr::Config::MERGE);
_testConfigParseOutputOptions("mydb", "{out: {reduce: 'mycoll', nonAtomic: true}}",
"", "mycoll", "mydb.mycoll", true, mr::Config::REDUCE);
// inline
_testConfigParseOutputOptions("mydb1", "{out: {inline: 'mycoll', db: 'mydb2'}}",
"mydb2", "", "", false, mr::Config::INMEMORY);
// Order should not matter in fields of 'out' object.
_testConfigParseOutputOptions("mydb1", "{out: {db: 'mydb2', normal: 'mycoll'}}",
"mydb2", "mycoll", "mydb2.mycoll", false,
mr::Config::REPLACE);
_testConfigParseOutputOptions("mydb1", "{out: {db: 'mydb2', replace: 'mycoll'}}",
"mydb2", "mycoll", "mydb2.mycoll", false,
mr::Config::REPLACE);
_testConfigParseOutputOptions("mydb1", "{out: {nonAtomic: true, merge: 'mycoll'}}",
"", "mycoll", "mydb1.mycoll", true,
mr::Config::MERGE);
_testConfigParseOutputOptions("mydb1", "{out: {nonAtomic: true, reduce: 'mycoll'}}",
"", "mycoll", "mydb1.mycoll", true,
mr::Config::REDUCE);
_testConfigParseOutputOptions("mydb1", "{out: {db: 'mydb2', inline: 'mycoll'}}",
"mydb2", "", "", false, mr::Config::INMEMORY);
}
} // namespace
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