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/* Copyright 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/>.
*
* 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.
*/
/** Unit tests for OwnedPointerMap. */
#include "mongo/base/owned_pointer_map.h"
#include <string>
#include <vector>
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
using std::make_pair;
/** Helper class that logs its constructor argument to a static vector on destruction. */
class DestructionLogger {
public:
DestructionLogger( const string& name ) :
_name( name ) {
}
~DestructionLogger() { _destroyedNames.push_back( _name ); }
static std::vector<string>& destroyedNames() { return _destroyedNames; }
string getName() { return _name; }
private:
string _name;
static std::vector<string> _destroyedNames;
};
std::vector<string> DestructionLogger::_destroyedNames;
TEST(OwnedPointerMapTest, OwnedPointerDestroyed) {
DestructionLogger::destroyedNames().clear();
{
OwnedPointerMap<int,DestructionLogger> owned;
owned.mutableMap().insert( make_pair( 0, new DestructionLogger( "foo" ) ) );
// owned destroyed
}
ASSERT_EQUALS( 1U, DestructionLogger::destroyedNames().size() );
ASSERT_EQUALS( "foo", DestructionLogger::destroyedNames()[ 0 ] );
}
TEST(OwnedPointerMapTest, OwnedConstPointerDestroyed) {
DestructionLogger::destroyedNames().clear();
{
OwnedPointerMap<int,const DestructionLogger> owned;
owned.mutableMap().insert( make_pair( 0, new DestructionLogger( "foo" ) ) );
// owned destroyed
}
ASSERT_EQUALS( 1U, DestructionLogger::destroyedNames().size() );
ASSERT_EQUALS( "foo", DestructionLogger::destroyedNames()[ 0 ] );
}
TEST(OwnedPointerMapTest, OwnedPointersDestroyedInOrder) {
DestructionLogger::destroyedNames().clear();
{
OwnedPointerMap<int,DestructionLogger> owned;
owned.mutableMap().insert( make_pair( 0, new DestructionLogger( "first" ) ) );
owned.mutableMap().insert( make_pair( 1, new DestructionLogger( "second" ) ) );
// owned destroyed
}
ASSERT_EQUALS( 2U, DestructionLogger::destroyedNames().size() );
ASSERT_EQUALS( "first", DestructionLogger::destroyedNames()[ 0 ] );
ASSERT_EQUALS( "second", DestructionLogger::destroyedNames()[ 1 ] );
}
TEST(OwnedPointerMapTest, OwnedPointersWithCompare) {
DestructionLogger::destroyedNames().clear();
{
OwnedPointerMap<int,DestructionLogger,std::greater<int> > owned;
owned.mutableMap().insert( make_pair( 0, new DestructionLogger( "0" ) ) );
owned.mutableMap().insert( make_pair( 1, new DestructionLogger( "1" ) ) );
// use std::greater<int> rather than the default std::less<int>
std::map<int,DestructionLogger*,std::greater<int> >::iterator it = owned.mutableMap().begin();
ASSERT( owned.mutableMap().end() != it);
// "1" should be sorted to be the first item.
ASSERT_EQUALS( "1", it->second->getName() );
it++;
ASSERT( owned.mutableMap().end() != it);
ASSERT_EQUALS( "0", it->second->getName() );
// owned destroyed
}
// destroyed in descending order
ASSERT_EQUALS( 2U, DestructionLogger::destroyedNames().size() );
ASSERT_EQUALS( "1", DestructionLogger::destroyedNames()[ 0 ] );
ASSERT_EQUALS( "0", DestructionLogger::destroyedNames()[ 1 ] );
}
} // namespace
} // namespace mongo
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