/*
* Copyright 2004 The WebRTC Project Authors . All rights reserved .
*
* Use of this source code is governed by a BSD - style license
* that can be found in the LICENSE file in the root of the source
* tree . An additional intellectual property rights grant can be found
* in the file PATENTS . All contributing project authors may
* be found in the AUTHORS file in the root of the source tree .
*/
#ifndef RTC_BASE_TEST_UTILS_H_
#define RTC_BASE_TEST_UTILS_H_
// Utilities for testing rtc infrastructure in unittests
#include <map>
#include <utility>
#include "rtc_base/socket.h"
namespace webrtc {
namespace testing {
///////////////////////////////////////////////////////////////////////////////
// StreamSink - Monitor asynchronously signalled events from Socket.
///////////////////////////////////////////////////////////////////////////////
// Note: Any event that is an error is treated as SSE_ERROR instead of that
// event.
enum StreamSinkEvent {
SSE_OPEN = 1 ,
SSE_READ = 2 ,
SSE_WRITE = 4 ,
SSE_CLOSE = 8 ,
SSE_ERROR = 16
};
class StreamSink {
public :
StreamSink();
virtual ~StreamSink();
void Monitor(Socket* socket) {
socket->SubscribeConnectEvent(
this , [this ](Socket* socket) { OnConnectEvent(socket); });
socket->SubscribeReadEvent(this ,
[this ](Socket* socket) { OnReadEvent(socket); });
socket->SubscribeWriteEvent(
this , [this ](Socket* socket) { OnWriteEvent(socket); });
socket->SubscribeCloseEvent(this , [this ](Socket* socket, int error) {
OnCloseEvent(socket, error);
});
// In case you forgot to unmonitor a previous object with this address
events_.erase(socket);
}
void Unmonitor(Socket* socket) {
socket->UnsubscribeConnectEvent(this );
socket->UnsubscribeReadEvent(this );
socket->UnsubscribeWriteEvent(this );
socket->UnsubscribeCloseEvent(this );
events_.erase(socket);
}
bool Check(Socket* socket, StreamSinkEvent event, bool reset = true ) {
return DoCheck(socket, event, reset);
}
private :
typedef std::map<Socket*, int> EventMap;
void OnConnectEvent(Socket* socket) { AddEvents(socket, SSE_OPEN); }
void OnReadEvent(Socket* socket) { AddEvents(socket, SSE_READ); }
void OnWriteEvent(Socket* socket) { AddEvents(socket, SSE_WRITE); }
void OnCloseEvent(Socket* socket, int error) {
AddEvents(socket, (0 == error) ? SSE_CLOSE : SSE_ERROR);
}
void AddEvents(Socket* obj, int events) {
EventMap::iterator it = events_.find(obj);
if (events_.end() == it) {
events_.insert(EventMap::value_type(obj, events));
} else {
it->second |= events;
}
}
bool DoCheck(Socket* obj, StreamSinkEvent event, bool reset) {
EventMap::iterator it = events_.find(obj);
if ((events_.end() == it) || (0 == (it->second & event))) {
return false;
}
if (reset) {
it->second &= ~event;
}
return true ;
}
EventMap events_;
};
} // namespace testing
} // namespace webrtc
#endif // RTC_BASE_TEST_UTILS_H_
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