chromeos/network/network_change_notifier_chromeos_unittest.cc

   1 // Copyright (c) 2012 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 "chromeos/network/network_change_notifier_chromeos.h"
   6
   7 #include <string>
   8
   9 #include "base/basictypes.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/strings/string_split.h"
  12 #include "chromeos/network/network_change_notifier_factory_chromeos.h"
  13 #include "chromeos/network/network_state.h"
  14 #include "net/base/network_change_notifier.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16 #include "third_party/cros_system_api/dbus/service_constants.h"
  17
  18 namespace chromeos {
  19
  20 namespace {
  21
  22 const char kDnsServers1[] = "192.168.0.1,192.168.0.2";
  23 const char kDnsServers2[] = "192.168.3.1,192.168.3.2";
  24 const char kIpAddress1[] = "192.168.1.1";
  25 const char kIpAddress2[] = "192.168.1.2";
  26 const char kService1[] = "/service/1";
  27 const char kService2[] = "/service/2";
  28 const char kService3[] = "/service/3";
  29
  30 // These values come from
  31 // http://w3c.github.io/netinfo/#underlying-connection-technology. For types
  32 // that have unknown subtypes (wifi and ethernet) positive infinity is used as
  33 // per the spec.
  34 const double kExpectedNoneMaxBandwidth = 0;
  35 const double kExpectedWifiMaxBandwidth =
  36     std::numeric_limits<double>::infinity();
  37 const double kExpectedEthernetMaxBandwidth =
  38     std::numeric_limits<double>::infinity();
  39 const double kExpectedLteMaxBandwidth = 100;
  40 const double kExpectedEvdoMaxBandwidth = 2.46;
  41 const double kExpectedHspaMaxBandwidth = 3.6;
  42
  43 struct NotifierState {
  44   net::NetworkChangeNotifier::ConnectionType type;
  45   const char* service_path;
  46   const char* ip_address;
  47   const char* dns_servers;
  48   double max_bandwidth;
  49 };
  50
  51 struct DefaultNetworkState {
  52   bool is_connected;
  53   const char* type;
  54   const char* network_technology;
  55   const char* service_path;
  56   const char* ip_address;
  57   const char* dns_servers;
  58 };
  59
  60 struct NotifierUpdateTestCase {
  61   const char* test_description;
  62   NotifierState initial_state;
  63   DefaultNetworkState default_network_state;
  64   NotifierState expected_state;
  65   bool expected_type_changed;
  66   bool expected_ip_changed;
  67   bool expected_dns_changed;
  68   bool expected_max_bandwidth_changed;
  69 };
  70
  71 } // namespace
  72
  73 using net::NetworkChangeNotifier;
  74
  75 TEST(NetworkChangeNotifierChromeosTest, ConnectionTypeFromShill) {
  76   struct TypeMapping {
  77     const char* shill_type;
  78     const char* technology;
  79     NetworkChangeNotifier::ConnectionType connection_type;
  80   };
  81   TypeMapping type_mappings[] = {
  82     { shill::kTypeEthernet, "", NetworkChangeNotifier::CONNECTION_ETHERNET },
  83     { shill::kTypeWifi, "", NetworkChangeNotifier::CONNECTION_WIFI },
  84     { shill::kTypeWimax, "", NetworkChangeNotifier::CONNECTION_4G },
  85     { "unknown type", "unknown technology",
  86       NetworkChangeNotifier::CONNECTION_UNKNOWN },
  87     { shill::kTypeCellular, shill::kNetworkTechnology1Xrtt,
  88       NetworkChangeNotifier::CONNECTION_2G },
  89     { shill::kTypeCellular, shill::kNetworkTechnologyGprs,
  90       NetworkChangeNotifier::CONNECTION_2G },
  91     { shill::kTypeCellular, shill::kNetworkTechnologyEdge,
  92       NetworkChangeNotifier::CONNECTION_2G },
  93     { shill::kTypeCellular, shill::kNetworkTechnologyEvdo,
  94       NetworkChangeNotifier::CONNECTION_3G },
  95     { shill::kTypeCellular, shill::kNetworkTechnologyGsm,
  96       NetworkChangeNotifier::CONNECTION_3G },
  97     { shill::kTypeCellular, shill::kNetworkTechnologyUmts,
  98       NetworkChangeNotifier::CONNECTION_3G },
  99     { shill::kTypeCellular, shill::kNetworkTechnologyHspa,
 100       NetworkChangeNotifier::CONNECTION_3G },
 101     { shill::kTypeCellular, shill::kNetworkTechnologyHspaPlus,
 102       NetworkChangeNotifier::CONNECTION_4G },
 103     { shill::kTypeCellular, shill::kNetworkTechnologyLte,
 104       NetworkChangeNotifier::CONNECTION_4G },
 105     { shill::kTypeCellular, shill::kNetworkTechnologyLteAdvanced,
 106       NetworkChangeNotifier::CONNECTION_4G },
 107     { shill::kTypeCellular, "unknown technology",
 108       NetworkChangeNotifier::CONNECTION_2G }
 109   };
 110
 111   for (size_t i = 0; i < arraysize(type_mappings); ++i) {
 112     NetworkChangeNotifier::ConnectionType type =
 113         NetworkChangeNotifierChromeos::ConnectionTypeFromShill(
 114             type_mappings[i].shill_type, type_mappings[i].technology);
 115     EXPECT_EQ(type_mappings[i].connection_type, type);
 116   }
 117 }
 118
 119 class NetworkChangeNotifierChromeosUpdateTest : public testing::Test {
 120  protected:
 121   NetworkChangeNotifierChromeosUpdateTest() : default_network_("") {
 122   }
 123   ~NetworkChangeNotifierChromeosUpdateTest() override {}
 124
 125   void SetNotifierState(const NotifierState& notifier_state) {
 126     notifier_.connection_type_ = notifier_state.type;
 127     notifier_.service_path_ = notifier_state.service_path;
 128     notifier_.ip_address_ = notifier_state.ip_address;
 129     notifier_.max_bandwidth_mbps_ = notifier_state.max_bandwidth;
 130     std::vector<std::string> dns_servers;
 131     base::SplitString(notifier_state.dns_servers, ',', &dns_servers);
 132     notifier_.dns_servers_ = dns_servers;
 133   }
 134
 135   void VerifyNotifierState(const NotifierState& notifier_state) {
 136     EXPECT_EQ(notifier_state.type, notifier_.connection_type_);
 137     EXPECT_EQ(notifier_state.service_path, notifier_.service_path_);
 138     EXPECT_EQ(notifier_state.ip_address, notifier_.ip_address_);
 139     EXPECT_EQ(notifier_state.max_bandwidth, notifier_.max_bandwidth_mbps_);
 140     std::vector<std::string> dns_servers;
 141     base::SplitString(notifier_state.dns_servers, ',', &dns_servers);
 142     EXPECT_EQ(dns_servers, notifier_.dns_servers_);
 143   }
 144
 145   // Sets the default network state used for notifier updates.
 146   void SetDefaultNetworkState(
 147       const DefaultNetworkState& default_network_state) {
 148     default_network_.visible_ = true;
 149     if (default_network_state.is_connected)
 150       default_network_.connection_state_ = shill::kStateOnline;
 151     else
 152       default_network_.connection_state_ = shill::kStateConfiguration;
 153     default_network_.type_ = default_network_state.type;
 154     default_network_.network_technology_ =
 155         default_network_state.network_technology;
 156     default_network_.path_ = default_network_state.service_path;
 157     default_network_.ip_address_ = default_network_state.ip_address;
 158     std::vector<std::string> dns_servers;
 159     base::SplitString(default_network_state.dns_servers, ',', &dns_servers);
 160     default_network_.dns_servers_ = dns_servers;
 161   }
 162
 163   // Process an default network update based on the state of |default_network_|.
 164   void ProcessDefaultNetworkUpdate(bool* type_changed,
 165                                    bool* ip_changed,
 166                                    bool* dns_changed,
 167                                    bool* max_bandwidth_changed) {
 168     notifier_.UpdateState(&default_network_, type_changed, ip_changed,
 169                           dns_changed, max_bandwidth_changed);
 170   }
 171
 172  private:
 173   base::MessageLoop message_loop_;
 174   NetworkState default_network_;
 175   NetworkChangeNotifierChromeos notifier_;
 176 };
 177
 178 NotifierUpdateTestCase test_cases[] = {
 179     {"Online -> Offline",
 180      {NetworkChangeNotifier::CONNECTION_ETHERNET,
 181       kService1,
 182       kIpAddress1,
 183       kDnsServers1,
 184       kExpectedEthernetMaxBandwidth},
 185      {false, shill::kTypeEthernet, "", kService1, "", ""},
 186      {NetworkChangeNotifier::CONNECTION_NONE,
 187       "",
 188       "",
 189       "",
 190       kExpectedNoneMaxBandwidth},
 191      true,
 192      true,
 193      true,
 194      true},
 195     {"Offline -> Offline",
 196      {NetworkChangeNotifier::CONNECTION_NONE,
 197       "",
 198       "",
 199       "",
 200       kExpectedNoneMaxBandwidth},
 201      {false, shill::kTypeEthernet, "", kService1, kIpAddress1, kDnsServers1},
 202      {NetworkChangeNotifier::CONNECTION_NONE,
 203       "",
 204       "",
 205       "",
 206       kExpectedNoneMaxBandwidth},
 207      false,
 208      false,
 209      false,
 210      false},
 211     {"Offline -> Online",
 212      {NetworkChangeNotifier::CONNECTION_NONE,
 213       "",
 214       "",
 215       "",
 216       kExpectedNoneMaxBandwidth},
 217      {true, shill::kTypeEthernet, "", kService1, kIpAddress1, kDnsServers1},
 218      {NetworkChangeNotifier::CONNECTION_ETHERNET,
 219       kService1,
 220       kIpAddress1,
 221       kDnsServers1,
 222       kExpectedEthernetMaxBandwidth},
 223      true,
 224      true,
 225      true,
 226      true},
 227     {"Online -> Online (new default service, different connection type)",
 228      {NetworkChangeNotifier::CONNECTION_ETHERNET,
 229       kService1,
 230       kIpAddress1,
 231       kDnsServers1,
 232       kExpectedEthernetMaxBandwidth},
 233      {true, shill::kTypeWifi, "", kService2, kIpAddress1, kDnsServers1},
 234      {NetworkChangeNotifier::CONNECTION_WIFI,
 235       kService2,
 236       kIpAddress1,
 237       kDnsServers1,
 238       kExpectedWifiMaxBandwidth},
 239      true,
 240      true,
 241      true,
 242      false},
 243     {"Online -> Online (new default service, same connection type)",
 244      {NetworkChangeNotifier::CONNECTION_WIFI,
 245       kService2,
 246       kIpAddress1,
 247       kDnsServers1,
 248       kExpectedWifiMaxBandwidth},
 249      {true, shill::kTypeWifi, "", kService3, kIpAddress1, kDnsServers1},
 250      {NetworkChangeNotifier::CONNECTION_WIFI,
 251       kService3,
 252       kIpAddress1,
 253       kDnsServers1,
 254       kExpectedWifiMaxBandwidth},
 255      false,
 256      true,
 257      true,
 258      false},
 259     {"Online -> Online (same default service, first IP address update)",
 260      {NetworkChangeNotifier::CONNECTION_WIFI,
 261       kService3,
 262       "",
 263       kDnsServers1,
 264       kExpectedWifiMaxBandwidth},
 265      {true, shill::kTypeWifi, "", kService3, kIpAddress2, kDnsServers1},
 266      {NetworkChangeNotifier::CONNECTION_WIFI,
 267       kService3,
 268       kIpAddress2,
 269       kDnsServers1,
 270       kExpectedWifiMaxBandwidth},
 271      false,
 272      false,
 273      false,
 274      false},
 275     {"Online -> Online (same default service, new IP address, same DNS)",
 276      {NetworkChangeNotifier::CONNECTION_WIFI,
 277       kService3,
 278       kIpAddress1,
 279       kDnsServers1,
 280       kExpectedWifiMaxBandwidth},
 281      {true, shill::kTypeWifi, "", kService3, kIpAddress2, kDnsServers1},
 282      {NetworkChangeNotifier::CONNECTION_WIFI,
 283       kService3,
 284       kIpAddress2,
 285       kDnsServers1,
 286       kExpectedWifiMaxBandwidth},
 287      false,
 288      true,
 289      false,
 290      false},
 291     {"Online -> Online (same default service, same IP address, new DNS)",
 292      {NetworkChangeNotifier::CONNECTION_WIFI,
 293       kService3,
 294       kIpAddress2,
 295       kDnsServers1,
 296       kExpectedWifiMaxBandwidth},
 297      {true, shill::kTypeWifi, "", kService3, kIpAddress2, kDnsServers2},
 298      {NetworkChangeNotifier::CONNECTION_WIFI,
 299       kService3,
 300       kIpAddress2,
 301       kDnsServers2,
 302       kExpectedWifiMaxBandwidth},
 303      false,
 304      false,
 305      true,
 306      false},
 307     {"Online -> Online (change of technology but not connection type)",
 308      {NetworkChangeNotifier::CONNECTION_3G,
 309       kService3,
 310       kIpAddress2,
 311       kDnsServers1,
 312       kExpectedEvdoMaxBandwidth},
 313      {true,
 314       shill::kTypeCellular,
 315       shill::kNetworkTechnologyHspa,
 316       kService3,
 317       kIpAddress2,
 318       kDnsServers1},
 319      {NetworkChangeNotifier::CONNECTION_3G,
 320       kService3,
 321       kIpAddress2,
 322       kDnsServers1,
 323       kExpectedHspaMaxBandwidth},
 324      false,
 325      false,
 326      false,
 327      true},
 328     {"Online -> Online (change of technology and connection type)",
 329      {NetworkChangeNotifier::CONNECTION_3G,
 330       kService3,
 331       kIpAddress2,
 332       kDnsServers1,
 333       kExpectedEvdoMaxBandwidth},
 334      {true,
 335       shill::kTypeCellular,
 336       shill::kNetworkTechnologyLte,
 337       kService3,
 338       kIpAddress2,
 339       kDnsServers1},
 340      {NetworkChangeNotifier::CONNECTION_4G,
 341       kService3,
 342       kIpAddress2,
 343       kDnsServers1,
 344       kExpectedLteMaxBandwidth},
 345      true,
 346      false,
 347      false,
 348      true}};
 349
 350 TEST_F(NetworkChangeNotifierChromeosUpdateTest, UpdateDefaultNetwork) {
 351   for (size_t i = 0; i < arraysize(test_cases); ++i) {
 352     SCOPED_TRACE(test_cases[i].test_description);
 353     SetNotifierState(test_cases[i].initial_state);
 354     SetDefaultNetworkState(test_cases[i].default_network_state);
 355     bool type_changed = false, ip_changed = false, dns_changed = false,
 356          max_bandwidth_changed = false;
 357     ProcessDefaultNetworkUpdate(&type_changed, &ip_changed, &dns_changed,
 358                                 &max_bandwidth_changed);
 359     VerifyNotifierState(test_cases[i].expected_state);
 360     EXPECT_EQ(test_cases[i].expected_type_changed, type_changed);
 361     EXPECT_EQ(test_cases[i].expected_ip_changed, ip_changed);
 362     EXPECT_EQ(test_cases[i].expected_dns_changed, dns_changed);
 363     EXPECT_EQ(test_cases[i].expected_max_bandwidth_changed,
 364               max_bandwidth_changed);
 365   }
 366 }
 367
 368 }  // namespace chromeos