event_creator_unittest.cc 4.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101
  1. // Copyright 2017 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. #include "net/nqe/event_creator.h"
  5. #include "base/time/time.h"
  6. #include "net/log/net_log_with_source.h"
  7. #include "net/log/test_net_log.h"
  8. #include "net/nqe/effective_connection_type.h"
  9. #include "net/nqe/network_quality.h"
  10. #include "testing/gtest/include/gtest/gtest.h"
  11. namespace net::nqe::internal {
  12. namespace {
  13. // Returns the number of entries in |net_log| that have type set to
  14. // |NetLogEventType::NETWORK_QUALITY_CHANGED|.
  15. int GetNetworkQualityChangedEntriesCount(RecordingNetLogObserver* net_log) {
  16. return net_log->GetEntriesWithType(NetLogEventType::NETWORK_QUALITY_CHANGED)
  17. .size();
  18. }
  19. // Verify that the net log events are recorded correctly.
  20. TEST(NetworkQualityEstimatorEventCreatorTest, Notified) {
  21. RecordingNetLogObserver net_log_observer;
  22. EventCreator event_creator(NetLogWithSource::Make(NetLogSourceType::NONE));
  23. NetworkQuality network_quality_100(base::Milliseconds(100),
  24. base::Milliseconds(100), 100);
  25. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  26. EFFECTIVE_CONNECTION_TYPE_2G, network_quality_100);
  27. EXPECT_EQ(1, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  28. // No new entry should be created since the network quality has not changed.
  29. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  30. EFFECTIVE_CONNECTION_TYPE_2G, network_quality_100);
  31. EXPECT_EQ(1, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  32. // A new entry should be created since effective connection type has changed.
  33. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  34. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_100);
  35. EXPECT_EQ(2, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  36. // A new entry should not be created since HTTP RTT has not changed
  37. // meaningfully.
  38. NetworkQuality network_quality_http_rtt_110(base::Milliseconds(110),
  39. base::Milliseconds(100), 100);
  40. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  41. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_http_rtt_110);
  42. EXPECT_EQ(2, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  43. // A new entry should be created since HTTP RTT has changed meaningfully.
  44. NetworkQuality network_quality_http_rtt_300(base::Milliseconds(300),
  45. base::Milliseconds(100), 100);
  46. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  47. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_http_rtt_300);
  48. EXPECT_EQ(3, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  49. // A new entry should be created since transport RTT has changed meaningfully.
  50. NetworkQuality network_quality_transport_rtt_300(
  51. base::Milliseconds(300), base::Milliseconds(300), 100);
  52. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  53. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_transport_rtt_300);
  54. EXPECT_EQ(4, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  55. // A new entry should be created since bandwidth has changed meaningfully.
  56. NetworkQuality network_quality_kbps_300(base::Milliseconds(300),
  57. base::Milliseconds(300), 300);
  58. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  59. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_300);
  60. EXPECT_EQ(5, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  61. // A new entry should not be created since network quality has not changed
  62. // meaningfully.
  63. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  64. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_300);
  65. EXPECT_EQ(5, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  66. // A new entry should be created since bandwidth has changed meaningfully.
  67. NetworkQuality network_quality_kbps_2000(base::Milliseconds(300),
  68. base::Milliseconds(300), 2000);
  69. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  70. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_2000);
  71. EXPECT_EQ(6, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  72. // A new entry should not be created since bandwidth has not changed by more
  73. // than 20%.
  74. NetworkQuality network_quality_kbps_2200(base::Milliseconds(300),
  75. base::Milliseconds(300), 2200);
  76. event_creator.MaybeAddNetworkQualityChangedEventToNetLog(
  77. EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_2200);
  78. EXPECT_EQ(6, GetNetworkQualityChangedEntriesCount(&net_log_observer));
  79. }
  80. } // namespace
  81. } // namespace net::nqe::internal