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      1 /*
      2  * libjingle
      3  * Copyright 2015 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_
     29 #define TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_
     30 
     31 #include <map>
     32 #include <string>
     33 
     34 #include "talk/app/webrtc/peerconnectioninterface.h"
     35 #include "webrtc/base/thread_checker.h"
     36 
     37 namespace webrtc {
     38 
     39 class FakeMetricsObserver : public MetricsObserverInterface {
     40  public:
     41   FakeMetricsObserver();
     42   void Reset();
     43 
     44   void IncrementEnumCounter(PeerConnectionEnumCounterType,
     45                             int counter,
     46                             int counter_max) override;
     47   void AddHistogramSample(PeerConnectionMetricsName type,
     48                           int value) override;
     49 
     50   // Accessors to be used by the tests.
     51   int GetEnumCounter(PeerConnectionEnumCounterType type, int counter) const;
     52   int GetHistogramSample(PeerConnectionMetricsName type) const;
     53 
     54  protected:
     55   ~FakeMetricsObserver() {}
     56 
     57  private:
     58   rtc::ThreadChecker thread_checker_;
     59   // The vector contains maps for each counter type. In the map, it's a mapping
     60   // from individual counter to its count, such that it's memory efficient when
     61   // comes to sparse enum types, like the SSL ciphers in the IANA registry.
     62   std::vector<std::map<int, int>> counters_;
     63   int histogram_samples_[kPeerConnectionMetricsName_Max];
     64 };
     65 
     66 }  // namespace webrtc
     67 
     68 #endif  // TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_
     69