| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/nqe/event_creator.h" |
| |
| #include "base/time/time.h" |
| #include "net/log/net_log_with_source.h" |
| #include "net/log/test_net_log.h" |
| #include "net/nqe/effective_connection_type.h" |
| #include "net/nqe/network_quality.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace net { |
| |
| namespace nqe { |
| |
| namespace internal { |
| |
| namespace { |
| |
| // Returns the number of entries in |net_log| that have type set to |
| // |NetLogEventType::NETWORK_QUALITY_CHANGED|. |
| int GetNetworkQualityChangedEntriesCount(RecordingBoundTestNetLog* net_log) { |
| return net_log->GetEntriesWithType(NetLogEventType::NETWORK_QUALITY_CHANGED) |
| .size(); |
| } |
| |
| // Verify that the net log events are recorded correctly. |
| TEST(NetworkQualityEstimatorEventCreatorTest, Notified) { |
| RecordingBoundTestNetLog net_log; |
| |
| EventCreator event_creator(net_log.bound()); |
| |
| NetworkQuality network_quality_100(base::TimeDelta::FromMilliseconds(100), |
| base::TimeDelta::FromMilliseconds(100), |
| 100); |
| |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_2G, network_quality_100); |
| EXPECT_EQ(1, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // No new entry should be created since the network quality has not changed. |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_2G, network_quality_100); |
| EXPECT_EQ(1, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should be created since effective connection type has changed. |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_100); |
| EXPECT_EQ(2, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should not be created since HTTP RTT has not changed |
| // meaningfully. |
| NetworkQuality network_quality_http_rtt_110( |
| base::TimeDelta::FromMilliseconds(110), |
| base::TimeDelta::FromMilliseconds(100), 100); |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_http_rtt_110); |
| EXPECT_EQ(2, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should be created since HTTP RTT has changed meaningfully. |
| NetworkQuality network_quality_http_rtt_300( |
| base::TimeDelta::FromMilliseconds(300), |
| base::TimeDelta::FromMilliseconds(100), 100); |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_http_rtt_300); |
| EXPECT_EQ(3, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should be created since transport RTT has changed meaningfully. |
| NetworkQuality network_quality_transport_rtt_300( |
| base::TimeDelta::FromMilliseconds(300), |
| base::TimeDelta::FromMilliseconds(300), 100); |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_transport_rtt_300); |
| EXPECT_EQ(4, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should be created since bandwidth has changed meaningfully. |
| NetworkQuality network_quality_kbps_300( |
| base::TimeDelta::FromMilliseconds(300), |
| base::TimeDelta::FromMilliseconds(300), 300); |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_300); |
| EXPECT_EQ(5, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should not be created since network quality has not changed |
| // meaningfully. |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_300); |
| EXPECT_EQ(5, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should be created since bandwidth has changed meaningfully. |
| NetworkQuality network_quality_kbps_2000( |
| base::TimeDelta::FromMilliseconds(300), |
| base::TimeDelta::FromMilliseconds(300), 2000); |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_2000); |
| EXPECT_EQ(6, GetNetworkQualityChangedEntriesCount(&net_log)); |
| |
| // A new entry should not be created since bandwidth has not changed by more |
| // than 20%. |
| NetworkQuality network_quality_kbps_2200( |
| base::TimeDelta::FromMilliseconds(300), |
| base::TimeDelta::FromMilliseconds(300), 2200); |
| event_creator.MaybeAddNetworkQualityChangedEventToNetLog( |
| EFFECTIVE_CONNECTION_TYPE_3G, network_quality_kbps_2200); |
| EXPECT_EQ(6, GetNetworkQualityChangedEntriesCount(&net_log)); |
| } |
| |
| } // namespace |
| |
| } // namespace internal |
| |
| } // namespace nqe |
| |
| } // namespace net |