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// counttests.cpp : count.{h,cpp} unit tests.
/**
* Copyright (C) 2008 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.
*/
#include <boost/thread/thread.hpp>
#include "mongo/db/db.h"
#include "mongo/db/json.h"
#include "mongo/db/ops/count.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/operation_context_impl.h"
#include "mongo/dbtests/dbtests.h"
namespace CountTests {
class Base {
Lock::DBWrite lk;
Client::Context _context;
Database* _database;
Collection* _collection;
OperationContextImpl _txn;
public:
Base() : lk(ns()), _context( ns() ) {
_database = _context.db();
_collection = _database->getCollection( ns() );
if ( _collection ) {
_database->dropCollection( &_txn, ns() );
}
_collection = _database->createCollection( &_txn, ns() );
addIndex( fromjson( "{\"a\":1}" ) );
}
~Base() {
try {
uassertStatusOK( _database->dropCollection( &_txn, ns() ) );
}
catch ( ... ) {
FAIL( "Exception while cleaning up collection" );
}
}
protected:
static const char *ns() {
return "unittests.counttests";
}
void addIndex( const BSONObj &key ) {
BSONObjBuilder b;
b.append( "name", key.firstElementFieldName() );
b.append( "ns", ns() );
b.append( "key", key );
BSONObj o = b.done();
Status s = _collection->getIndexCatalog()->createIndex(&_txn, o, false);
uassertStatusOK( s );
}
void insert( const char *s ) {
insert( fromjson( s ) );
}
void insert( const BSONObj &o ) {
if ( o["_id"].eoo() ) {
BSONObjBuilder b;
OID oid;
oid.init();
b.appendOID( "_id", &oid );
b.appendElements( o );
_collection->insertDocument( &_txn, b.obj(), false );
}
else {
_collection->insertDocument( &_txn, o, false );
}
}
static BSONObj countCommand( const BSONObj &query ) {
return BSON( "query" << query );
}
};
class Basic : public Base {
public:
void run() {
insert( "{\"a\":\"b\"}" );
BSONObj cmd = fromjson( "{\"query\":{}}" );
string err;
int errCode;
ASSERT_EQUALS( 1, runCount( ns(), cmd, err, errCode ) );
}
};
class Query : public Base {
public:
void run() {
insert( "{\"a\":\"b\"}" );
insert( "{\"a\":\"b\",\"x\":\"y\"}" );
insert( "{\"a\":\"c\"}" );
BSONObj cmd = fromjson( "{\"query\":{\"a\":\"b\"}}" );
string err;
int errCode;
ASSERT_EQUALS( 2, runCount( ns(), cmd, err, errCode ) );
}
};
class Fields : public Base {
public:
void run() {
insert( "{\"a\":\"b\"}" );
insert( "{\"c\":\"d\"}" );
BSONObj cmd = fromjson( "{\"query\":{},\"fields\":{\"a\":1}}" );
string err;
int errCode;
ASSERT_EQUALS( 2, runCount( ns(), cmd, err, errCode ) );
}
};
class QueryFields : public Base {
public:
void run() {
insert( "{\"a\":\"b\"}" );
insert( "{\"a\":\"c\"}" );
insert( "{\"d\":\"e\"}" );
BSONObj cmd = fromjson( "{\"query\":{\"a\":\"b\"},\"fields\":{\"a\":1}}" );
string err;
int errCode;
ASSERT_EQUALS( 1, runCount( ns(), cmd, err, errCode ) );
}
};
class IndexedRegex : public Base {
public:
void run() {
insert( "{\"a\":\"b\"}" );
insert( "{\"a\":\"c\"}" );
BSONObj cmd = fromjson( "{\"query\":{\"a\":/^b/}}" );
string err;
int errCode;
ASSERT_EQUALS( 1, runCount( ns(), cmd, err, errCode ) );
}
};
/** Set a value or await an expected value. */
class PendingValue {
public:
PendingValue( int initialValue ) :
_value( initialValue ),
_mutex( "CountTests::PendingValue::_mutex" ) {
}
void set( int newValue ) {
scoped_lock lk( _mutex );
_value = newValue;
_condition.notify_all();
}
void await( int expectedValue ) const {
scoped_lock lk( _mutex );
while( _value != expectedValue ) {
_condition.wait( lk.boost() );
}
}
private:
int _value;
mutable mongo::mutex _mutex;
mutable boost::condition _condition;
};
/** A writer client will be registered for the lifetime of an object of this class. */
class WriterClientScope {
public:
WriterClientScope() :
_state( Initial ),
_dummyWriter( stdx::bind( &WriterClientScope::runDummyWriter, this ) ) {
_state.await( Ready );
}
~WriterClientScope() {
// Terminate the writer thread even on exception.
_state.set( Finished );
DESTRUCTOR_GUARD( _dummyWriter.join() );
}
private:
enum State {
Initial,
Ready,
Finished
};
void runDummyWriter() {
Client::initThread( "dummy writer" );
scoped_ptr<Acquiring> a( new Acquiring( 0 , cc().lockState() ) );
_state.set( Ready );
_state.await( Finished );
a.reset(0);
cc().shutdown();
}
PendingValue _state;
boost::thread _dummyWriter;
};
class All : public Suite {
public:
All() : Suite( "count" ) {
}
void setupTests() {
add<Basic>();
add<Query>();
add<Fields>();
add<QueryFields>();
add<IndexedRegex>();
}
} myall;
} // namespace CountTests
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