Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium OS 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 "shill/link_monitor.h" |
| 6 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 7 | #include <base/bind.h> |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 8 | #include <gtest/gtest.h> |
| 9 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 10 | #include "shill/arp_packet.h" |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 11 | #include "shill/byte_string.h" |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 12 | #include "shill/ip_address.h" |
Christopher Wiley | b691efd | 2012-08-09 13:51:51 -0700 | [diff] [blame] | 13 | #include "shill/logging.h" |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 14 | #include "shill/mock_arp_client.h" |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 15 | #include "shill/mock_control.h" |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 16 | #include "shill/mock_connection.h" |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 17 | #include "shill/mock_device_info.h" |
| 18 | #include "shill/mock_event_dispatcher.h" |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 19 | #include "shill/mock_log.h" |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 20 | #include "shill/mock_metrics.h" |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 21 | #include "shill/mock_sockets.h" |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 22 | #include "shill/mock_time.h" |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 23 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 24 | using base::Bind; |
| 25 | using base::Unretained; |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 26 | using std::string; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 27 | using testing::_; |
| 28 | using testing::AnyNumber; |
| 29 | using testing::HasSubstr; |
| 30 | using testing::Invoke; |
| 31 | using testing::Mock; |
| 32 | using testing::NiceMock; |
| 33 | using testing::Return; |
| 34 | using testing::ReturnRef; |
| 35 | using testing::SetArgumentPointee; |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 36 | using testing::StrictMock; |
| 37 | using testing::Test; |
| 38 | |
| 39 | namespace shill { |
| 40 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 41 | namespace { |
| 42 | const int kInterfaceIndex = 123; |
| 43 | const char kLocalIPAddress[] = "10.0.1.1"; |
| 44 | const uint8 kLocalMACAddress[] = { 0, 1, 2, 3, 4, 5 }; |
| 45 | const char kRemoteIPAddress[] = "10.0.1.2"; |
| 46 | const uint8 kRemoteMACAddress[] = { 6, 7, 8, 9, 10, 11 }; |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 47 | } // namespace |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 48 | |
| 49 | |
| 50 | class LinkMonitorForTest : public LinkMonitor { |
| 51 | public: |
| 52 | LinkMonitorForTest(const ConnectionRefPtr &connection, |
| 53 | EventDispatcher *dispatcher, |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 54 | Metrics *metrics, |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 55 | DeviceInfo *device_info) |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 56 | : LinkMonitor(connection, dispatcher, metrics, device_info, |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 57 | Bind(&LinkMonitorForTest::FailureCallbackHandler, |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 58 | Unretained(this))) {} |
| 59 | |
| 60 | virtual ~LinkMonitorForTest() {} |
| 61 | |
| 62 | MOCK_METHOD0(CreateClient, bool()); |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 63 | |
| 64 | // This does not override any methods in LinkMonitor, but is used here |
| 65 | // in unit tests to support expectations when the LinkMonitor notifies |
| 66 | // its client of a failure. |
| 67 | MOCK_METHOD0(FailureCallbackHandler, void()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 68 | }; |
| 69 | |
| 70 | MATCHER_P4(IsArpRequest, local_ip, remote_ip, local_mac, remote_mac, "") { |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 71 | if (local_ip.Equals(arg.local_ip_address()) && |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 72 | remote_ip.Equals(arg.remote_ip_address()) && |
| 73 | local_mac.Equals(arg.local_mac_address()) && |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 74 | remote_mac.Equals(arg.remote_mac_address())) |
| 75 | return true; |
| 76 | |
| 77 | if (!local_ip.Equals(arg.local_ip_address())) { |
| 78 | *result_listener << "Local IP '" << arg.local_ip_address().ToString() |
| 79 | << "' (wanted '" << local_ip.ToString() << "')."; |
| 80 | } |
| 81 | |
| 82 | if (!remote_ip.Equals(arg.remote_ip_address())) { |
| 83 | *result_listener << "Remote IP '" << arg.remote_ip_address().ToString() |
| 84 | << "' (wanted '" << remote_ip.ToString() << "')."; |
| 85 | } |
| 86 | |
| 87 | if (!local_mac.Equals(arg.local_mac_address())) { |
| 88 | *result_listener << "Local MAC '" << arg.local_mac_address().HexEncode() |
| 89 | << "' (wanted " << local_mac.HexEncode() << ")'."; |
| 90 | } |
| 91 | |
| 92 | if (!remote_mac.Equals(arg.remote_mac_address())) { |
| 93 | *result_listener << "Remote MAC '" << arg.remote_mac_address().HexEncode() |
| 94 | << "' (wanted " << remote_mac.HexEncode() << ")'."; |
| 95 | } |
| 96 | |
| 97 | return false; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 98 | } |
| 99 | |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 100 | class LinkMonitorTest : public Test { |
| 101 | public: |
| 102 | LinkMonitorTest() |
Thieu Le | 6c1e3bb | 2013-02-06 15:20:35 -0800 | [diff] [blame] | 103 | : metrics_(&dispatcher_), |
| 104 | device_info_( |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 105 | &control_, |
| 106 | reinterpret_cast<EventDispatcher*>(NULL), |
| 107 | reinterpret_cast<Metrics*>(NULL), |
| 108 | reinterpret_cast<Manager*>(NULL)), |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 109 | connection_(new StrictMock<MockConnection>(&device_info_)), |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 110 | monitor_(connection_, &dispatcher_, &metrics_, &device_info_), |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 111 | client_(NULL), |
| 112 | next_client_(new StrictMock<MockArpClient>()), |
| 113 | gateway_ip_(IPAddress::kFamilyIPv4), |
| 114 | local_ip_(IPAddress::kFamilyIPv4), |
| 115 | gateway_mac_(kRemoteMACAddress, arraysize(kRemoteMACAddress)), |
| 116 | local_mac_(kLocalMACAddress, arraysize(kLocalMACAddress)), |
| 117 | zero_mac_(arraysize(kLocalMACAddress)), |
| 118 | link_scope_logging_was_enabled_(false) {} |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 119 | virtual ~LinkMonitorTest() {} |
| 120 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 121 | virtual void SetUp() { |
| 122 | link_scope_logging_was_enabled_ = SLOG_IS_ON(Link, 0); |
| 123 | if (!link_scope_logging_was_enabled_) { |
| 124 | ScopeLogger::GetInstance()->EnableScopesByName("link"); |
| 125 | ScopeLogger::GetInstance()->set_verbose_level(4); |
| 126 | } |
| 127 | monitor_.time_ = &time_; |
Paul Stewart | 0443aa5 | 2012-08-09 10:43:50 -0700 | [diff] [blame] | 128 | time_val_.tv_sec = 0; |
| 129 | time_val_.tv_usec = 0; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 130 | EXPECT_CALL(time_, GetTimeMonotonic(_)) |
| 131 | .WillRepeatedly(DoAll(SetArgumentPointee<0>(time_val_), Return(0))); |
| 132 | EXPECT_TRUE(local_ip_.SetAddressFromString(kLocalIPAddress)); |
| 133 | EXPECT_CALL(*connection_, local()).WillRepeatedly(ReturnRef(local_ip_)); |
| 134 | EXPECT_TRUE(gateway_ip_.SetAddressFromString(kRemoteIPAddress)); |
| 135 | EXPECT_CALL(*connection_, gateway()).WillRepeatedly(ReturnRef(gateway_ip_)); |
Alex Deymo | fddc09a | 2013-07-03 18:41:31 -0700 | [diff] [blame] | 136 | EXPECT_CALL(*connection_, technology()) |
| 137 | .WillRepeatedly(Return(Technology::kEthernet)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | virtual void TearDown() { |
| 141 | if (!link_scope_logging_was_enabled_) { |
| 142 | ScopeLogger::GetInstance()->EnableScopesByName("-link"); |
| 143 | ScopeLogger::GetInstance()->set_verbose_level(0); |
| 144 | } |
| 145 | } |
| 146 | |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 147 | void AdvanceTime(int time_ms) { |
Han Shen | fc34925 | 2012-08-30 11:36:04 -0700 | [diff] [blame] | 148 | struct timeval adv_time = { |
| 149 | static_cast<time_t>(time_ms/1000), |
| 150 | static_cast<time_t>((time_ms % 1000) * 1000) }; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 151 | timeradd(&time_val_, &adv_time, &time_val_); |
| 152 | EXPECT_CALL(time_, GetTimeMonotonic(_)) |
| 153 | .WillRepeatedly(DoAll(SetArgumentPointee<0>(time_val_), Return(0))); |
| 154 | } |
| 155 | |
| 156 | bool CreateMockClient() { |
| 157 | EXPECT_FALSE(monitor_.arp_client_.get()); |
| 158 | if (client_) { |
| 159 | Mock::VerifyAndClearExpectations(client_); |
| 160 | } |
| 161 | client_ = next_client_; |
| 162 | next_client_ = new StrictMock<MockArpClient>(); |
| 163 | monitor_.arp_client_.reset(client_); |
| 164 | return true; |
| 165 | } |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 166 | |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 167 | string HardwareAddressToString(const ByteString &address) { |
| 168 | return LinkMonitor::HardwareAddressToString(address); |
| 169 | } |
| 170 | |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 171 | protected: |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 172 | void ExpectReset() { |
| 173 | EXPECT_FALSE(monitor_.GetResponseTimeMilliseconds()); |
| 174 | EXPECT_FALSE(GetArpClient()); |
| 175 | EXPECT_TRUE(GetSendRequestCallback().IsCancelled()); |
| 176 | EXPECT_EQ(0, GetBroadcastFailureCount()); |
| 177 | EXPECT_EQ(0, GetUnicastFailureCount()); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 178 | EXPECT_EQ(0, GetBroadcastSuccessCount()); |
| 179 | EXPECT_EQ(0, GetUnicastSuccessCount()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 180 | EXPECT_FALSE(IsUnicast()); |
| 181 | } |
| 182 | const ArpClient *GetArpClient() { return monitor_.arp_client_.get(); } |
| 183 | void TriggerRequestTimer() { |
| 184 | GetSendRequestCallback().callback().Run(); |
| 185 | } |
| 186 | const base::CancelableClosure &GetSendRequestCallback() { |
| 187 | return monitor_.send_request_callback_; |
| 188 | } |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 189 | int GetBroadcastFailureCount() { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 190 | return monitor_.broadcast_failure_count_; |
| 191 | } |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 192 | int GetUnicastFailureCount() { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 193 | return monitor_.unicast_failure_count_; |
| 194 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 195 | int GetBroadcastSuccessCount() { |
| 196 | return monitor_.broadcast_success_count_; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 197 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 198 | int GetUnicastSuccessCount() { |
| 199 | return monitor_.unicast_success_count_; |
| 200 | } |
| 201 | bool IsUnicast() { return monitor_.is_unicast_; } |
| 202 | int GetCurrentTestPeriodMilliseconds() { |
| 203 | return monitor_.test_period_milliseconds_; |
| 204 | } |
| 205 | int GetDefaultTestPeriodMilliseconds() { |
| 206 | return LinkMonitor::kDefaultTestPeriodMilliseconds; |
| 207 | } |
| 208 | size_t GetFailureThreshold() { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 209 | return LinkMonitor::kFailureThreshold; |
| 210 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 211 | int GetFastTestPeriodMilliseconds() { |
| 212 | return LinkMonitor::kFastTestPeriodMilliseconds; |
| 213 | } |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 214 | int GetMaxResponseSampleFilterDepth() { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 215 | return LinkMonitor::kMaxResponseSampleFilterDepth; |
| 216 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 217 | void ExpectTransmit(bool is_unicast, int transmit_period_milliseconds) { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 218 | const ByteString &destination_mac = is_unicast ? gateway_mac_ : zero_mac_; |
| 219 | if (monitor_.arp_client_.get()) { |
| 220 | EXPECT_EQ(client_, monitor_.arp_client_.get()); |
| 221 | EXPECT_CALL(*client_, TransmitRequest( |
| 222 | IsArpRequest(local_ip_, gateway_ip_, local_mac_, destination_mac))) |
| 223 | .WillOnce(Return(true)); |
| 224 | } else { |
| 225 | EXPECT_CALL(monitor_, CreateClient()) |
| 226 | .WillOnce(Invoke(this, &LinkMonitorTest::CreateMockClient)); |
| 227 | EXPECT_CALL(*next_client_, TransmitRequest( |
| 228 | IsArpRequest(local_ip_, gateway_ip_, local_mac_, destination_mac))) |
| 229 | .WillOnce(Return(true)); |
| 230 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 231 | EXPECT_CALL(dispatcher_, |
| 232 | PostDelayedTask(_, transmit_period_milliseconds)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 233 | } |
| 234 | void SendNextRequest() { |
| 235 | EXPECT_CALL(monitor_, CreateClient()) |
| 236 | .WillOnce(Invoke(this, &LinkMonitorTest::CreateMockClient)); |
| 237 | EXPECT_CALL(*next_client_, TransmitRequest(_)).WillOnce(Return(true)); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 238 | EXPECT_CALL(dispatcher_, |
| 239 | PostDelayedTask(_, GetCurrentTestPeriodMilliseconds())); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 240 | TriggerRequestTimer(); |
| 241 | } |
| 242 | void ExpectNoTransmit() { |
| 243 | MockArpClient *client = |
| 244 | monitor_.arp_client_.get() ? client_ : next_client_; |
| 245 | EXPECT_CALL(*client, TransmitRequest(_)).Times(0); |
| 246 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 247 | void ExpectRestart(int transmit_period_milliseconds) { |
| 248 | EXPECT_CALL(device_info_, GetMACAddress(0, _)) |
| 249 | .WillOnce(DoAll(SetArgumentPointee<1>(local_mac_), Return(true))); |
| 250 | // Can't just use ExpectTransmit, because that depends on state |
| 251 | // that changes during Stop. |
| 252 | EXPECT_CALL(monitor_, CreateClient()) |
| 253 | .WillOnce(Invoke(this, &LinkMonitorTest::CreateMockClient)); |
| 254 | EXPECT_CALL(*next_client_, TransmitRequest( |
| 255 | IsArpRequest(local_ip_, gateway_ip_, local_mac_, zero_mac_))) |
| 256 | .WillOnce(Return(true)); |
| 257 | EXPECT_CALL(dispatcher_, |
| 258 | PostDelayedTask(_, transmit_period_milliseconds)); |
| 259 | } |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 260 | void StartMonitor() { |
| 261 | EXPECT_CALL(device_info_, GetMACAddress(0, _)) |
| 262 | .WillOnce(DoAll(SetArgumentPointee<1>(local_mac_), Return(true))); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 263 | ExpectTransmit(false, GetDefaultTestPeriodMilliseconds()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 264 | EXPECT_TRUE(monitor_.Start()); |
| 265 | EXPECT_TRUE(GetArpClient()); |
| 266 | EXPECT_FALSE(IsUnicast()); |
| 267 | EXPECT_FALSE(GetSendRequestCallback().IsCancelled()); |
| 268 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 269 | void ReportResume() { |
| 270 | monitor_.OnAfterResume(); |
| 271 | } |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 272 | bool SimulateReceiveReply(ArpPacket *packet, ByteString *sender) { |
| 273 | packet->set_local_ip_address(rx_packet_.local_ip_address()); |
| 274 | packet->set_remote_ip_address(rx_packet_.remote_ip_address()); |
| 275 | packet->set_local_mac_address(rx_packet_.local_mac_address()); |
| 276 | packet->set_remote_mac_address(rx_packet_.remote_mac_address()); |
| 277 | return true; |
| 278 | } |
| 279 | void ReceiveResponse(const IPAddress &local_ip, |
| 280 | const ByteString &local_mac, |
| 281 | const IPAddress &remote_ip, |
| 282 | const ByteString &remote_mac) { |
| 283 | rx_packet_.set_local_ip_address(local_ip); |
| 284 | rx_packet_.set_local_mac_address(local_mac); |
| 285 | rx_packet_.set_remote_ip_address(remote_ip); |
| 286 | rx_packet_.set_remote_mac_address(remote_mac); |
| 287 | |
| 288 | EXPECT_CALL(*client_, ReceiveReply(_, _)) |
| 289 | .WillOnce(Invoke(this, &LinkMonitorTest::SimulateReceiveReply)); |
| 290 | monitor_.ReceiveResponse(0); |
| 291 | } |
| 292 | void ReceiveCorrectResponse() { |
Paul Stewart | 9f7823e | 2012-08-09 10:58:26 -0700 | [diff] [blame] | 293 | ReceiveResponse(gateway_ip_, gateway_mac_, local_ip_, local_mac_); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 294 | } |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 295 | bool IsGatewayFound() { |
| 296 | return monitor_.IsGatewayFound(); |
| 297 | } |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 298 | |
| 299 | MockEventDispatcher dispatcher_; |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 300 | StrictMock<MockMetrics> metrics_; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 301 | MockControl control_; |
| 302 | NiceMock<MockDeviceInfo> device_info_; |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 303 | scoped_refptr<MockConnection> connection_; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 304 | StrictMock<LinkMonitorForTest> monitor_; |
| 305 | MockTime time_; |
| 306 | struct timeval time_val_; |
| 307 | // This is owned by the LinkMonitor, and only tracked here for EXPECT*(). |
| 308 | MockArpClient *client_; |
| 309 | // This is owned by the test until it is handed to the LinkMonitorForTest |
| 310 | // and placed // in client_ above. |
| 311 | MockArpClient *next_client_; |
| 312 | IPAddress gateway_ip_; |
| 313 | IPAddress local_ip_; |
| 314 | ByteString gateway_mac_; |
| 315 | ByteString local_mac_; |
| 316 | ByteString zero_mac_; |
| 317 | ArpPacket rx_packet_; |
| 318 | bool link_scope_logging_was_enabled_; |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 319 | }; |
| 320 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 321 | |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 322 | TEST_F(LinkMonitorTest, Constructor) { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 323 | ExpectReset(); |
| 324 | } |
| 325 | |
| 326 | TEST_F(LinkMonitorTest, StartFailedGetMACAddress) { |
| 327 | ScopedMockLog log; |
| 328 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 329 | EXPECT_CALL(log, |
| 330 | Log(logging::LOG_ERROR, _, |
| 331 | HasSubstr("Could not get local MAC address"))).Times(1); |
| 332 | EXPECT_CALL(device_info_, GetMACAddress(0, _)).WillOnce(Return(false)); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 333 | EXPECT_CALL(metrics_, SendEnumToUMA( |
| 334 | HasSubstr("LinkMonitorFailure"), Metrics::kLinkMonitorMacAddressNotFound, |
| 335 | _)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 336 | EXPECT_CALL(monitor_, CreateClient()).Times(0); |
| 337 | EXPECT_FALSE(monitor_.Start()); |
| 338 | ExpectReset(); |
| 339 | } |
| 340 | |
| 341 | TEST_F(LinkMonitorTest, StartFailedCreateClient) { |
| 342 | ScopedMockLog log; |
| 343 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 344 | EXPECT_CALL(log, |
| 345 | Log(logging::LOG_ERROR, _, |
| 346 | HasSubstr("Failed to start ARP client"))).Times(1); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 347 | EXPECT_CALL(metrics_, SendEnumToUMA( |
| 348 | HasSubstr("LinkMonitorFailure"), Metrics::kLinkMonitorClientStartFailure, |
| 349 | _)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 350 | EXPECT_CALL(device_info_, GetMACAddress(0, _)).WillOnce(Return(true)); |
| 351 | EXPECT_CALL(monitor_, CreateClient()).WillOnce(Return(false)); |
| 352 | EXPECT_FALSE(monitor_.Start()); |
| 353 | ExpectReset(); |
| 354 | } |
| 355 | |
| 356 | TEST_F(LinkMonitorTest, StartFailedTransmitRequest) { |
| 357 | ScopedMockLog log; |
| 358 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 359 | EXPECT_CALL(log, |
| 360 | Log(logging::LOG_ERROR, _, |
| 361 | HasSubstr("Failed to send ARP"))).Times(1); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 362 | EXPECT_CALL(metrics_, SendEnumToUMA( |
| 363 | HasSubstr("LinkMonitorFailure"), Metrics::kLinkMonitorTransmitFailure, |
| 364 | _)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 365 | EXPECT_CALL(device_info_, GetMACAddress(0, _)).WillOnce(Return(true)); |
| 366 | EXPECT_CALL(monitor_, CreateClient()) |
| 367 | .WillOnce(Invoke(this, &LinkMonitorTest::CreateMockClient)); |
| 368 | EXPECT_CALL(*next_client_, TransmitRequest(_)).WillOnce(Return(false)); |
| 369 | EXPECT_FALSE(monitor_.Start()); |
| 370 | ExpectReset(); |
| 371 | } |
| 372 | |
| 373 | TEST_F(LinkMonitorTest, StartSuccess) { |
| 374 | StartMonitor(); |
| 375 | } |
| 376 | |
| 377 | TEST_F(LinkMonitorTest, Stop) { |
| 378 | StartMonitor(); |
| 379 | monitor_.Stop(); |
| 380 | ExpectReset(); |
| 381 | } |
| 382 | |
| 383 | TEST_F(LinkMonitorTest, ReplyReception) { |
| 384 | StartMonitor(); |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 385 | const int kResponseTime = 1234; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 386 | AdvanceTime(kResponseTime); |
| 387 | ScopedMockLog log; |
| 388 | |
| 389 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 390 | EXPECT_CALL(log, Log(_, _, HasSubstr("not for our IP"))).Times(1); |
Paul Stewart | 9f7823e | 2012-08-09 10:58:26 -0700 | [diff] [blame] | 391 | ReceiveResponse(gateway_ip_, gateway_mac_, gateway_ip_, local_mac_); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 392 | Mock::VerifyAndClearExpectations(&log); |
| 393 | |
| 394 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 395 | EXPECT_CALL(log, Log(_, _, HasSubstr("not for our MAC"))).Times(1); |
Paul Stewart | 9f7823e | 2012-08-09 10:58:26 -0700 | [diff] [blame] | 396 | ReceiveResponse(gateway_ip_, gateway_mac_, local_ip_, gateway_mac_); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 397 | Mock::VerifyAndClearExpectations(&log); |
| 398 | |
| 399 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 400 | EXPECT_CALL(log, Log(_, _, HasSubstr("not from the gateway"))).Times(1); |
Paul Stewart | 9f7823e | 2012-08-09 10:58:26 -0700 | [diff] [blame] | 401 | ReceiveResponse(local_ip_, gateway_mac_, local_ip_, local_mac_); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 402 | Mock::VerifyAndClearExpectations(&log); |
| 403 | |
| 404 | EXPECT_TRUE(GetArpClient()); |
| 405 | EXPECT_FALSE(monitor_.GetResponseTimeMilliseconds()); |
| 406 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 407 | EXPECT_CALL(log, Log(_, _, HasSubstr("Found gateway"))).Times(1); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 408 | EXPECT_CALL(metrics_, SendToUMA( |
| 409 | HasSubstr("LinkMonitorResponseTimeSample"), kResponseTime, |
| 410 | _, _, _)).Times(1); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 411 | ReceiveCorrectResponse(); |
| 412 | EXPECT_FALSE(GetArpClient()); |
| 413 | EXPECT_EQ(kResponseTime, monitor_.GetResponseTimeMilliseconds()); |
| 414 | EXPECT_TRUE(IsUnicast()); |
| 415 | } |
| 416 | |
| 417 | TEST_F(LinkMonitorTest, TimeoutBroadcast) { |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 418 | EXPECT_CALL(metrics_, SendToUMA( |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 419 | HasSubstr("LinkMonitorResponseTimeSample"), |
| 420 | GetDefaultTestPeriodMilliseconds(), |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 421 | _, _, _)).Times(GetFailureThreshold()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 422 | StartMonitor(); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 423 | // This value doesn't match real life (the timer in this scenario |
| 424 | // should advance by LinkMonitor::kDefaultTestPeriodMilliseconds), |
| 425 | // but this demonstrates the LinkMonitorSecondsToFailure independent |
| 426 | // from the response-time figures. |
Paul Stewart | 0443aa5 | 2012-08-09 10:43:50 -0700 | [diff] [blame] | 427 | const int kTimeIncrement = 1000; |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 428 | for (size_t i = 1; i < GetFailureThreshold(); ++i) { |
| 429 | ExpectTransmit(false, GetDefaultTestPeriodMilliseconds()); |
Paul Stewart | 0443aa5 | 2012-08-09 10:43:50 -0700 | [diff] [blame] | 430 | AdvanceTime(kTimeIncrement); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 431 | TriggerRequestTimer(); |
| 432 | EXPECT_FALSE(IsUnicast()); |
| 433 | EXPECT_EQ(i, GetBroadcastFailureCount()); |
| 434 | EXPECT_EQ(0, GetUnicastFailureCount()); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 435 | EXPECT_EQ(0, GetBroadcastSuccessCount()); |
| 436 | EXPECT_EQ(0, GetUnicastSuccessCount()); |
| 437 | EXPECT_EQ(GetDefaultTestPeriodMilliseconds(), |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 438 | monitor_.GetResponseTimeMilliseconds()); |
| 439 | } |
| 440 | ScopedMockLog log; |
| 441 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 442 | EXPECT_CALL(log, |
| 443 | Log(logging::LOG_ERROR, _, |
| 444 | HasSubstr("monitor has reached the failure threshold"))).Times(1); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 445 | EXPECT_CALL(metrics_, SendEnumToUMA( |
| 446 | HasSubstr("LinkMonitorFailure"), |
| 447 | Metrics::kLinkMonitorFailureThresholdReached, _)); |
Paul Stewart | 0443aa5 | 2012-08-09 10:43:50 -0700 | [diff] [blame] | 448 | EXPECT_CALL(metrics_, SendToUMA( |
| 449 | HasSubstr("LinkMonitorSecondsToFailure"), |
| 450 | kTimeIncrement * GetFailureThreshold() / 1000, _, _, _)); |
| 451 | EXPECT_CALL(metrics_, SendToUMA( |
| 452 | HasSubstr("BroadcastErrorsAtFailure"), GetFailureThreshold(), _, _, _)); |
| 453 | EXPECT_CALL(metrics_, SendToUMA( |
| 454 | HasSubstr("UnicastErrorsAtFailure"), 0, _, _, _)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 455 | EXPECT_FALSE(GetSendRequestCallback().IsCancelled()); |
| 456 | ExpectNoTransmit(); |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 457 | EXPECT_CALL(monitor_, FailureCallbackHandler()); |
Paul Stewart | 0443aa5 | 2012-08-09 10:43:50 -0700 | [diff] [blame] | 458 | AdvanceTime(kTimeIncrement); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 459 | TriggerRequestTimer(); |
| 460 | ExpectReset(); |
| 461 | } |
| 462 | |
| 463 | TEST_F(LinkMonitorTest, TimeoutUnicast) { |
| 464 | StartMonitor(); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 465 | // Successful broadcast receptions. |
| 466 | EXPECT_CALL(metrics_, SendToUMA( |
| 467 | HasSubstr("LinkMonitorResponseTimeSample"), 0, _, _, _)) |
| 468 | .Times(GetFailureThreshold()); |
| 469 | // Unsuccessful unicast receptions. |
| 470 | EXPECT_CALL(metrics_, SendToUMA( |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 471 | HasSubstr("LinkMonitorResponseTimeSample"), |
| 472 | GetDefaultTestPeriodMilliseconds(), |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 473 | _, _, _)).Times(GetFailureThreshold()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 474 | ReceiveCorrectResponse(); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 475 | for (size_t i = 1; i < GetFailureThreshold(); ++i) { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 476 | // Failed unicast ARP. |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 477 | ExpectTransmit(true, GetDefaultTestPeriodMilliseconds()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 478 | TriggerRequestTimer(); |
| 479 | |
| 480 | // Successful broadcast ARP. |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 481 | ExpectTransmit(false, GetDefaultTestPeriodMilliseconds()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 482 | TriggerRequestTimer(); |
| 483 | ReceiveCorrectResponse(); |
| 484 | |
| 485 | EXPECT_EQ(0, GetBroadcastFailureCount()); |
| 486 | EXPECT_EQ(i, GetUnicastFailureCount()); |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 487 | EXPECT_EQ(i+1, GetBroadcastSuccessCount()); // One before loop. |
| 488 | EXPECT_EQ(0, GetUnicastSuccessCount()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 489 | } |
| 490 | // Last unicast ARP transmission. |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 491 | ExpectTransmit(true, GetDefaultTestPeriodMilliseconds()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 492 | TriggerRequestTimer(); |
| 493 | |
| 494 | ScopedMockLog log; |
| 495 | EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); |
| 496 | EXPECT_CALL(log, |
| 497 | Log(logging::LOG_ERROR, _, |
| 498 | HasSubstr("monitor has reached the failure threshold"))).Times(1); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 499 | EXPECT_CALL(metrics_, SendEnumToUMA( |
| 500 | HasSubstr("LinkMonitorFailure"), |
| 501 | Metrics::kLinkMonitorFailureThresholdReached, _)); |
Paul Stewart | 0443aa5 | 2012-08-09 10:43:50 -0700 | [diff] [blame] | 502 | EXPECT_CALL(metrics_, SendToUMA( |
| 503 | HasSubstr("LinkMonitorSecondsToFailure"), 0, _, _, _)); |
| 504 | EXPECT_CALL(metrics_, SendToUMA( |
| 505 | HasSubstr("BroadcastErrorsAtFailure"), 0, _, _, _)); |
| 506 | EXPECT_CALL(metrics_, SendToUMA( |
| 507 | HasSubstr("UnicastErrorsAtFailure"), GetFailureThreshold(), _, _, _)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 508 | EXPECT_FALSE(GetSendRequestCallback().IsCancelled()); |
| 509 | ExpectNoTransmit(); |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 510 | EXPECT_CALL(monitor_, FailureCallbackHandler()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 511 | TriggerRequestTimer(); |
| 512 | ExpectReset(); |
| 513 | } |
| 514 | |
mukesh agrawal | bb2231c | 2013-07-17 16:32:24 -0700 | [diff] [blame] | 515 | TEST_F(LinkMonitorTest, OnAfterResume) { |
| 516 | const int kFastTestPeriodMilliseconds = GetFastTestPeriodMilliseconds(); |
| 517 | StartMonitor(); |
| 518 | Mock::VerifyAndClearExpectations(&monitor_); |
| 519 | |
| 520 | // Resume should preserve the fact that we haven't resolved the gateway's MAC. |
| 521 | EXPECT_FALSE(IsGatewayFound()); |
| 522 | ExpectRestart(kFastTestPeriodMilliseconds); |
| 523 | ReportResume(); |
| 524 | EXPECT_FALSE(IsGatewayFound()); |
| 525 | |
| 526 | // After resume, we should use the fast test period... |
| 527 | ExpectRestart(kFastTestPeriodMilliseconds); |
| 528 | ReportResume(); |
| 529 | EXPECT_EQ(kFastTestPeriodMilliseconds, GetCurrentTestPeriodMilliseconds()); |
| 530 | |
| 531 | // ...and the fast period should be used for reporting failure to UMA... |
| 532 | EXPECT_CALL(metrics_, SendToUMA( |
| 533 | HasSubstr("LinkMonitorResponseTimeSample"), kFastTestPeriodMilliseconds, |
| 534 | _, _, _)); |
| 535 | ExpectTransmit(false, kFastTestPeriodMilliseconds); |
| 536 | TriggerRequestTimer(); |
| 537 | |
| 538 | // ...and the period should be reset after correct responses on both |
| 539 | // broadcast and unicast. |
| 540 | const int kResponseTime = 12; |
| 541 | EXPECT_CALL(metrics_, SendToUMA( |
| 542 | HasSubstr("LinkMonitorResponseTimeSample"), kResponseTime, _, _, _)) |
| 543 | .Times(2); |
| 544 | AdvanceTime(kResponseTime); |
| 545 | ReceiveCorrectResponse(); |
| 546 | EXPECT_EQ(GetFastTestPeriodMilliseconds(), |
| 547 | GetCurrentTestPeriodMilliseconds()); // Don't change yet. |
| 548 | ExpectTransmit(true, kFastTestPeriodMilliseconds); |
| 549 | TriggerRequestTimer(); |
| 550 | AdvanceTime(kResponseTime); |
| 551 | ReceiveCorrectResponse(); |
| 552 | EXPECT_EQ(1, GetBroadcastSuccessCount()); |
| 553 | EXPECT_EQ(1, GetUnicastSuccessCount()); |
| 554 | EXPECT_EQ(GetDefaultTestPeriodMilliseconds(), |
| 555 | GetCurrentTestPeriodMilliseconds()); |
| 556 | |
| 557 | // Resume should preserve the fact that we _have_ resolved the gateway's MAC. |
| 558 | EXPECT_TRUE(IsGatewayFound()); |
| 559 | ExpectRestart(kFastTestPeriodMilliseconds); |
| 560 | ReportResume(); |
| 561 | EXPECT_TRUE(IsGatewayFound()); |
| 562 | |
| 563 | // Failure should happen just like normal. |
| 564 | ExpectRestart(kFastTestPeriodMilliseconds); |
| 565 | ReportResume(); |
| 566 | EXPECT_CALL(metrics_, SendToUMA( |
| 567 | HasSubstr("LinkMonitorResponseTimeSample"), kFastTestPeriodMilliseconds, |
| 568 | _, _, _)) |
| 569 | .Times(GetFailureThreshold()); |
| 570 | EXPECT_CALL(metrics_, SendEnumToUMA( |
| 571 | HasSubstr("LinkMonitorFailure"), |
| 572 | Metrics::kLinkMonitorFailureThresholdReached, _)); |
| 573 | EXPECT_CALL(metrics_, SendToUMA( |
| 574 | HasSubstr("LinkMonitorSecondsToFailure"), _, _, _, _)); |
| 575 | EXPECT_CALL(metrics_, SendToUMA( |
| 576 | HasSubstr("BroadcastErrorsAtFailure"), GetFailureThreshold() / 2 + 1, |
| 577 | _, _, _)); |
| 578 | EXPECT_CALL(metrics_, SendToUMA( |
| 579 | HasSubstr("UnicastErrorsAtFailure"), GetFailureThreshold() / 2, |
| 580 | _, _, _)); |
| 581 | EXPECT_CALL(monitor_, FailureCallbackHandler()); |
| 582 | bool unicast_probe = true; |
| 583 | for (size_t i = 1 ; i < GetFailureThreshold(); ++i) { |
| 584 | ExpectTransmit(unicast_probe, GetFastTestPeriodMilliseconds()); |
| 585 | TriggerRequestTimer(); |
| 586 | unicast_probe = !unicast_probe; |
| 587 | } |
| 588 | TriggerRequestTimer(); |
| 589 | ExpectReset(); |
| 590 | } |
| 591 | |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 592 | TEST_F(LinkMonitorTest, Average) { |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 593 | const int kSamples[] = { 200, 950, 1200, 4096, 5000, |
| 594 | 86, 120, 3060, 842, 750 }; |
| 595 | const size_t filter_depth = GetMaxResponseSampleFilterDepth(); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 596 | EXPECT_CALL(metrics_, SendToUMA( |
| 597 | HasSubstr("LinkMonitorResponseTimeSample"), _, _, _, _)) |
| 598 | .Times(arraysize(kSamples)); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 599 | ASSERT_GT(arraysize(kSamples), filter_depth); |
| 600 | StartMonitor(); |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 601 | size_t i = 0; |
| 602 | int sum = 0; |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 603 | for (; i < filter_depth; ++i) { |
| 604 | AdvanceTime(kSamples[i]); |
| 605 | ReceiveCorrectResponse(); |
| 606 | sum += kSamples[i]; |
| 607 | EXPECT_EQ(sum / (i + 1), monitor_.GetResponseTimeMilliseconds()); |
| 608 | SendNextRequest(); |
| 609 | } |
| 610 | for (; i < arraysize(kSamples); ++i) { |
| 611 | AdvanceTime(kSamples[i]); |
| 612 | ReceiveCorrectResponse(); |
| 613 | sum = (sum + kSamples[i]) * filter_depth / (filter_depth + 1); |
| 614 | EXPECT_EQ(sum / filter_depth, monitor_.GetResponseTimeMilliseconds()); |
| 615 | SendNextRequest(); |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | TEST_F(LinkMonitorTest, ImpulseResponse) { |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 620 | const int kNormalValue = 50; |
| 621 | const int kExceptionalValue = 5000; |
| 622 | const int filter_depth = GetMaxResponseSampleFilterDepth(); |
Paul Stewart | ff845fc | 2012-08-07 07:28:44 -0700 | [diff] [blame] | 623 | EXPECT_CALL(metrics_, SendToUMA( |
| 624 | HasSubstr("LinkMonitorResponseTimeSample"), _, _, _, _)) |
| 625 | .Times(AnyNumber()); |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 626 | StartMonitor(); |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 627 | for (int i = 0; i < filter_depth * 2; ++i) { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 628 | AdvanceTime(kNormalValue); |
| 629 | ReceiveCorrectResponse(); |
| 630 | EXPECT_EQ(kNormalValue, monitor_.GetResponseTimeMilliseconds()); |
| 631 | SendNextRequest(); |
| 632 | } |
| 633 | AdvanceTime(kExceptionalValue); |
| 634 | ReceiveCorrectResponse(); |
| 635 | // Our expectation is that an impulse input will be a |
| 636 | // impulse_height / (filter_depth + 1) increase to the running average. |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 637 | int expected_impulse_response = |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 638 | kNormalValue + (kExceptionalValue - kNormalValue) / (filter_depth + 1); |
| 639 | EXPECT_EQ(expected_impulse_response, monitor_.GetResponseTimeMilliseconds()); |
| 640 | SendNextRequest(); |
| 641 | |
| 642 | // From here, if we end up continuing to receive normal values, our |
| 643 | // running average should decay backwards to the normal value. |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 644 | const int failsafe = 100; |
| 645 | int last_value = monitor_.GetResponseTimeMilliseconds(); |
| 646 | for (int i = 0; i < failsafe && last_value != kNormalValue; ++i) { |
Paul Stewart | 6c72c97 | 2012-07-27 11:29:20 -0700 | [diff] [blame] | 647 | AdvanceTime(kNormalValue); |
| 648 | ReceiveCorrectResponse(); |
| 649 | // We should advance monotonically (but not necessarily linearly) |
| 650 | // back towards the normal value. |
| 651 | EXPECT_GE(last_value, monitor_.GetResponseTimeMilliseconds()); |
| 652 | SendNextRequest(); |
| 653 | last_value = monitor_.GetResponseTimeMilliseconds(); |
| 654 | } |
| 655 | EXPECT_EQ(kNormalValue, last_value); |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 656 | } |
| 657 | |
Paul Stewart | f1961f8 | 2012-09-11 20:45:39 -0700 | [diff] [blame] | 658 | TEST_F(LinkMonitorTest, HardwareAddressToString) { |
| 659 | const uint8 address0[] = { 0, 1, 2, 3, 4, 5 }; |
| 660 | EXPECT_EQ("00:01:02:03:04:05", |
| 661 | HardwareAddressToString(ByteString(address0, arraysize(address0)))); |
| 662 | const uint8 address1[] = { 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd }; |
| 663 | EXPECT_EQ("88:99:aa:bb:cc:dd", |
| 664 | HardwareAddressToString(ByteString(address1, arraysize(address1)))); |
| 665 | } |
| 666 | |
Paul Stewart | 3f43f43 | 2012-07-16 12:12:45 -0700 | [diff] [blame] | 667 | } // namespace shill |