chromecast/base/metrics/cast_metrics_test_helper.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chromecast/base/metrics/cast_metrics_test_helper.h"
   6
   7 #include "base/logging.h"
   8 #include "base/macros.h"
   9 #include "chromecast/base/metrics/cast_metrics_helper.h"
  10
  11 namespace chromecast {
  12 namespace metrics {
  13
  14 namespace {
  15
  16 class CastMetricsHelperStub : public CastMetricsHelper {
  17  public:
  18   CastMetricsHelperStub();
  19   virtual ~CastMetricsHelperStub();
  20
  21   virtual void TagAppStart(const std::string& arg_app_name) override;
  22   virtual void LogMediaPlay() override;
  23   virtual void LogMediaPause() override;
  24   virtual void LogTimeToDisplayVideo() override;
  25   virtual void LogTimeToBufferAv(BufferingType buffering_type,
  26                                  base::TimeDelta time) override;
  27   virtual void ResetVideoFrameSampling() override;
  28   virtual void LogFramesPer5Seconds(
  29       int displayed_frames, int dropped_frames,
  30       int delayed_frames, int error_frames) override;
  31   virtual std::string GetMetricsNameWithAppName(
  32       const std::string& prefix, const std::string& suffix) const override;
  33   virtual void SetMetricsSink(MetricsSink* delegate) override;
  34
  35  private:
  36   DISALLOW_COPY_AND_ASSIGN(CastMetricsHelperStub);
  37 };
  38
  39 bool stub_instance_exists = false;
  40
  41 CastMetricsHelperStub::CastMetricsHelperStub()
  42     : CastMetricsHelper() {
  43   DCHECK(!stub_instance_exists);
  44   stub_instance_exists = true;
  45 }
  46
  47 CastMetricsHelperStub::~CastMetricsHelperStub() {
  48   DCHECK(stub_instance_exists);
  49   stub_instance_exists = false;
  50 }
  51
  52 void CastMetricsHelperStub::TagAppStart(const std::string& arg_app_name) {
  53 }
  54
  55 void CastMetricsHelperStub::LogMediaPlay() {
  56 }
  57
  58 void CastMetricsHelperStub::LogMediaPause() {
  59 }
  60
  61 void CastMetricsHelperStub::LogTimeToDisplayVideo() {
  62 }
  63
  64 void CastMetricsHelperStub::LogTimeToBufferAv(BufferingType buffering_type,
  65                                               base::TimeDelta time) {
  66 }
  67
  68 void CastMetricsHelperStub::ResetVideoFrameSampling() {
  69 }
  70
  71 void CastMetricsHelperStub::LogFramesPer5Seconds(int displayed_frames,
  72                                                  int dropped_frames,
  73                                                  int delayed_frames,
  74                                                  int error_frames) {
  75 }
  76
  77 std::string CastMetricsHelperStub::GetMetricsNameWithAppName(
  78     const std::string& prefix,
  79     const std::string& suffix) const {
  80   return "";
  81 }
  82
  83 void CastMetricsHelperStub::SetMetricsSink(MetricsSink* delegate) {
  84 }
  85
  86 }  // namespace
  87
  88 void InitializeMetricsHelperForTesting() {
  89   if (!stub_instance_exists) {
  90     new CastMetricsHelperStub();
  91   }
  92 }
  93
  94 }  // namespace metrics
  95 }  // namespace chromecast