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/strings/string_split.h"
11#include "chromeos/network/network_change_notifier_factory_chromeos.h"
12#include "chromeos/network/network_state.h"
13#include "net/base/network_change_notifier.h"
14#include "testing/gtest/include/gtest/gtest.h"
15#include "third_party/cros_system_api/dbus/service_constants.h"
16
17namespace chromeos {
18
19namespace {
20
21const char kDnsServers1[] = "192.168.0.1,192.168.0.2";
22const char kDnsServers2[] = "192.168.3.1,192.168.3.2";
23const char kIpAddress1[] = "192.168.1.1";
24const char kIpAddress2[] = "192.168.1.2";
25const char kService1[] = "/service/1";
26const char kService2[] = "/service/2";
27const char kService3[] = "/service/3";
28
29struct NotifierState {
30  net::NetworkChangeNotifier::ConnectionType type;
31  const char* service_path;
32  const char* ip_address;
33  const char* dns_servers;
34};
35
36struct DefaultNetworkState {
37  bool is_connected;
38  const char* type;
39  const char* network_technology;
40  const char* service_path;
41  const char* ip_address;
42  const char* dns_servers;
43};
44
45struct NotifierUpdateTestCase {
46  const char* test_description;
47  NotifierState initial_state;
48  DefaultNetworkState default_network_state;
49  NotifierState expected_state;
50  bool expected_type_changed;
51  bool expected_ip_changed;
52  bool expected_dns_changed;
53};
54
55} // namespace
56
57using net::NetworkChangeNotifier;
58
59TEST(NetworkChangeNotifierChromeosTest, ConnectionTypeFromShill) {
60  struct TypeMapping {
61    const char* shill_type;
62    const char* technology;
63    NetworkChangeNotifier::ConnectionType connection_type;
64  };
65  TypeMapping type_mappings[] = {
66    { shill::kTypeEthernet, "", NetworkChangeNotifier::CONNECTION_ETHERNET },
67    { shill::kTypeWifi, "", NetworkChangeNotifier::CONNECTION_WIFI },
68    { shill::kTypeWimax, "", NetworkChangeNotifier::CONNECTION_4G },
69    { "unknown type", "unknown technology",
70      NetworkChangeNotifier::CONNECTION_UNKNOWN },
71    { shill::kTypeCellular, shill::kNetworkTechnology1Xrtt,
72      NetworkChangeNotifier::CONNECTION_2G },
73    { shill::kTypeCellular, shill::kNetworkTechnologyGprs,
74      NetworkChangeNotifier::CONNECTION_2G },
75    { shill::kTypeCellular, shill::kNetworkTechnologyEdge,
76      NetworkChangeNotifier::CONNECTION_2G },
77    { shill::kTypeCellular, shill::kNetworkTechnologyEvdo,
78      NetworkChangeNotifier::CONNECTION_3G },
79    { shill::kTypeCellular, shill::kNetworkTechnologyGsm,
80      NetworkChangeNotifier::CONNECTION_3G },
81    { shill::kTypeCellular, shill::kNetworkTechnologyUmts,
82      NetworkChangeNotifier::CONNECTION_3G },
83    { shill::kTypeCellular, shill::kNetworkTechnologyHspa,
84      NetworkChangeNotifier::CONNECTION_3G },
85    { shill::kTypeCellular, shill::kNetworkTechnologyHspaPlus,
86      NetworkChangeNotifier::CONNECTION_4G },
87    { shill::kTypeCellular, shill::kNetworkTechnologyLte,
88      NetworkChangeNotifier::CONNECTION_4G },
89    { shill::kTypeCellular, shill::kNetworkTechnologyLteAdvanced,
90      NetworkChangeNotifier::CONNECTION_4G },
91    { shill::kTypeCellular, "unknown technology",
92      NetworkChangeNotifier::CONNECTION_2G }
93  };
94
95  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(type_mappings); ++i) {
96    NetworkChangeNotifier::ConnectionType type =
97        NetworkChangeNotifierChromeos::ConnectionTypeFromShill(
98            type_mappings[i].shill_type, type_mappings[i].technology);
99    EXPECT_EQ(type_mappings[i].connection_type, type);
100  }
101}
102
103class NetworkChangeNotifierChromeosUpdateTest : public testing::Test {
104 protected:
105  NetworkChangeNotifierChromeosUpdateTest() : default_network_("") {
106  }
107  virtual ~NetworkChangeNotifierChromeosUpdateTest() {}
108
109  void SetNotifierState(const NotifierState& notifier_state) {
110    notifier_.connection_type_ = notifier_state.type;
111    notifier_.service_path_ = notifier_state.service_path;
112    notifier_.ip_address_ = notifier_state.ip_address;
113    std::vector<std::string> dns_servers;
114    base::SplitString(notifier_state.dns_servers, ',', &dns_servers);
115    notifier_.dns_servers_ = dns_servers;
116  }
117
118  void VerifyNotifierState(const NotifierState& notifier_state) {
119    EXPECT_EQ(notifier_state.type, notifier_.connection_type_);
120    EXPECT_EQ(notifier_state.service_path, notifier_.service_path_);
121    EXPECT_EQ(notifier_state.ip_address, notifier_.ip_address_);
122    std::vector<std::string> dns_servers;
123    base::SplitString(notifier_state.dns_servers, ',', &dns_servers);
124    EXPECT_EQ(dns_servers, notifier_.dns_servers_);
125  }
126
127  // Sets the default network state used for notifier updates.
128  void SetDefaultNetworkState(
129      const DefaultNetworkState& default_network_state) {
130    default_network_.visible_ = true;
131    if (default_network_state.is_connected)
132      default_network_.connection_state_ = shill::kStateOnline;
133    else
134      default_network_.connection_state_ = shill::kStateConfiguration;
135    default_network_.type_ = default_network_state.type;
136    default_network_.network_technology_ =
137        default_network_state.network_technology;
138    default_network_.path_ = default_network_state.service_path;
139    default_network_.ip_address_ = default_network_state.ip_address;
140    std::vector<std::string> dns_servers;
141    base::SplitString(default_network_state.dns_servers, ',', &dns_servers);
142    default_network_.dns_servers_ = dns_servers;
143  }
144
145  // Process an default network update based on the state of |default_network_|.
146  void ProcessDefaultNetworkUpdate(bool* type_changed,
147                                   bool* ip_changed,
148                                   bool* dns_changed) {
149    notifier_.UpdateState(&default_network_, type_changed, ip_changed,
150                          dns_changed);
151  }
152
153 private:
154  NetworkState default_network_;
155  NetworkChangeNotifierChromeos notifier_;
156};
157
158NotifierUpdateTestCase test_cases[] = {
159  { "Online -> Offline",
160    { NetworkChangeNotifier::CONNECTION_ETHERNET, kService1, kIpAddress1,
161      kDnsServers1 },
162    { false, shill::kTypeEthernet, "", kService1, "", "" },
163    { NetworkChangeNotifier::CONNECTION_NONE, "", "", "" },
164    true, true, true
165  },
166  { "Offline -> Offline",
167    { NetworkChangeNotifier::CONNECTION_NONE, "", "", "" },
168    { false, shill::kTypeEthernet, "", kService1, kIpAddress1,
169      kDnsServers1 },
170    { NetworkChangeNotifier::CONNECTION_NONE, "", "", "" },
171    false, false, false
172  },
173  { "Offline -> Online",
174    { NetworkChangeNotifier::CONNECTION_NONE, "", "", "" },
175    { true, shill::kTypeEthernet, "", kService1, kIpAddress1, kDnsServers1 },
176    { NetworkChangeNotifier::CONNECTION_ETHERNET, kService1, kIpAddress1,
177      kDnsServers1 },
178    true, true, true
179  },
180  { "Online -> Online (new default service, different connection type)",
181    { NetworkChangeNotifier::CONNECTION_ETHERNET, kService1, kIpAddress1,
182      kDnsServers1 },
183    { true, shill::kTypeWifi, "", kService2, kIpAddress1, kDnsServers1 },
184    { NetworkChangeNotifier::CONNECTION_WIFI, kService2, kIpAddress1,
185      kDnsServers1 },
186    true, true, true
187  },
188  { "Online -> Online (new default service, same connection type)",
189    { NetworkChangeNotifier::CONNECTION_WIFI, kService2, kIpAddress1,
190      kDnsServers1 },
191    { true, shill::kTypeWifi, "", kService3, kIpAddress1, kDnsServers1 },
192    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, kIpAddress1,
193      kDnsServers1 },
194    false, true, true
195  },
196  { "Online -> Online (same default service, first IP address update)",
197    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, "", kDnsServers1 },
198    { true, shill::kTypeWifi, "", kService3, kIpAddress2, kDnsServers1 },
199    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, kIpAddress2,
200      kDnsServers1 },
201    false, false, false
202  },
203  { "Online -> Online (same default service, new IP address, same DNS)",
204    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, kIpAddress1,
205      kDnsServers1 },
206    { true, shill::kTypeWifi, "", kService3, kIpAddress2, kDnsServers1 },
207    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, kIpAddress2,
208      kDnsServers1 },
209    false, true, false
210  },
211  { "Online -> Online (same default service, same IP address, new DNS)",
212    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, kIpAddress2,
213      kDnsServers1 },
214    { true, shill::kTypeWifi, "", kService3, kIpAddress2, kDnsServers2 },
215    { NetworkChangeNotifier::CONNECTION_WIFI, kService3, kIpAddress2,
216      kDnsServers2 },
217    false, false, true
218  }
219};
220
221TEST_F(NetworkChangeNotifierChromeosUpdateTest, UpdateDefaultNetwork) {
222  for (size_t i = 0; i < arraysize(test_cases); ++i) {
223    SCOPED_TRACE(test_cases[i].test_description);
224    SetNotifierState(test_cases[i].initial_state);
225    SetDefaultNetworkState(test_cases[i].default_network_state);
226    bool type_changed = false, ip_changed = false, dns_changed = false;
227    ProcessDefaultNetworkUpdate(&type_changed, &ip_changed, &dns_changed);
228    VerifyNotifierState(test_cases[i].expected_state);
229    EXPECT_TRUE(type_changed == test_cases[i].expected_type_changed);
230    EXPECT_TRUE(ip_changed == test_cases[i].expected_ip_changed);
231    EXPECT_TRUE(dns_changed == test_cases[i].expected_dns_changed);
232  }
233}
234
235}  // namespace chromeos
236