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 "content/browser/geolocation/wifi_data_provider_linux.h"
6
7#include "base/memory/ref_counted.h"
8#include "base/memory/scoped_ptr.h"
9#include "base/message_loop/message_loop.h"
10#include "base/strings/utf_string_conversions.h"
11#include "dbus/message.h"
12#include "dbus/mock_bus.h"
13#include "dbus/mock_object_proxy.h"
14#include "dbus/object_path.h"
15#include "dbus/object_proxy.h"
16#include "testing/gmock/include/gmock/gmock.h"
17#include "testing/gtest/include/gtest/gtest.h"
18
19using ::testing::_;
20using ::testing::Invoke;
21using ::testing::Return;
22using ::testing::Unused;
23
24namespace content {
25
26class GeolocationWifiDataProviderLinuxTest : public testing::Test {
27  virtual void SetUp() {
28    // Create a mock bus.
29    dbus::Bus::Options options;
30    options.bus_type = dbus::Bus::SYSTEM;
31    mock_bus_ = new dbus::MockBus(options);
32
33    // Create a mock proxy that behaves as NetworkManager.
34    mock_network_manager_proxy_ =
35        new dbus::MockObjectProxy(
36            mock_bus_.get(),
37            "org.freedesktop.NetworkManager",
38            dbus::ObjectPath("/org/freedesktop/NetworkManager"));
39    // Set an expectation so mock_network_manager_proxy_'s
40    // CallMethodAndBlock() will use CreateNetworkManagerProxyResponse()
41    // to return responses.
42    EXPECT_CALL(*mock_network_manager_proxy_.get(),
43                MockCallMethodAndBlock(_, _))
44        .WillRepeatedly(Invoke(this,
45                               &GeolocationWifiDataProviderLinuxTest::
46                                   CreateNetworkManagerProxyResponse));
47
48    // Create a mock proxy that behaves as NetworkManager/Devices/0.
49    mock_device_proxy_ =
50        new dbus::MockObjectProxy(
51            mock_bus_.get(),
52            "org.freedesktop.NetworkManager",
53            dbus::ObjectPath("/org/freedesktop/NetworkManager/Devices/0"));
54    EXPECT_CALL(*mock_device_proxy_.get(), MockCallMethodAndBlock(_, _))
55        .WillRepeatedly(Invoke(
56             this,
57             &GeolocationWifiDataProviderLinuxTest::CreateDeviceProxyResponse));
58
59    // Create a mock proxy that behaves as NetworkManager/AccessPoint/0.
60    mock_access_point_proxy_ =
61        new dbus::MockObjectProxy(
62            mock_bus_.get(),
63            "org.freedesktop.NetworkManager",
64            dbus::ObjectPath("/org/freedesktop/NetworkManager/AccessPoint/0"));
65    EXPECT_CALL(*mock_access_point_proxy_.get(), MockCallMethodAndBlock(_, _))
66        .WillRepeatedly(Invoke(this,
67                               &GeolocationWifiDataProviderLinuxTest::
68                                   CreateAccessPointProxyResponse));
69
70    // Set an expectation so mock_bus_'s GetObjectProxy() for the given
71    // service name and the object path will return
72    // mock_network_manager_proxy_.
73    EXPECT_CALL(
74        *mock_bus_.get(),
75        GetObjectProxy("org.freedesktop.NetworkManager",
76                       dbus::ObjectPath("/org/freedesktop/NetworkManager")))
77        .WillOnce(Return(mock_network_manager_proxy_.get()));
78    // Likewise, set an expectation for mock_device_proxy_.
79    EXPECT_CALL(
80        *mock_bus_.get(),
81        GetObjectProxy(
82            "org.freedesktop.NetworkManager",
83            dbus::ObjectPath("/org/freedesktop/NetworkManager/Devices/0")))
84        .WillOnce(Return(mock_device_proxy_.get()))
85        .WillOnce(Return(mock_device_proxy_.get()));
86    // Likewise, set an expectation for mock_access_point_proxy_.
87    EXPECT_CALL(
88        *mock_bus_.get(),
89        GetObjectProxy(
90            "org.freedesktop.NetworkManager",
91            dbus::ObjectPath("/org/freedesktop/NetworkManager/AccessPoint/0")))
92        .WillOnce(Return(mock_access_point_proxy_.get()));
93
94    // ShutdownAndBlock() should be called.
95    EXPECT_CALL(*mock_bus_.get(), ShutdownAndBlock()).WillOnce(Return());
96
97    // Create the wlan API with the mock bus object injected.
98    wifi_provider_linux_ = new WifiDataProviderLinux;
99    wlan_api_.reset(
100        wifi_provider_linux_->NewWlanApiForTesting(mock_bus_.get()));
101    ASSERT_TRUE(wlan_api_.get());
102  }
103
104 protected:
105  // DeviceDataProviderImplBase, a super class of WifiDataProviderLinux,
106  // requires a message loop to be present. message_loop_ is defined here,
107  // as it should outlive wifi_provider_linux_.
108  base::MessageLoop message_loop_;
109  scoped_refptr<dbus::MockBus> mock_bus_;
110  scoped_refptr<dbus::MockObjectProxy> mock_network_manager_proxy_;
111  scoped_refptr<dbus::MockObjectProxy> mock_access_point_proxy_;
112  scoped_refptr<dbus::MockObjectProxy> mock_device_proxy_;
113  scoped_refptr<WifiDataProviderLinux>  wifi_provider_linux_;
114  scoped_ptr<WifiDataProviderCommon::WlanApiInterface> wlan_api_;
115
116 private:
117  // Creates a response for |mock_network_manager_proxy_|.
118  dbus::Response* CreateNetworkManagerProxyResponse(
119      dbus::MethodCall* method_call,
120      Unused) {
121    if (method_call->GetInterface() == "org.freedesktop.NetworkManager" &&
122        method_call->GetMember() == "GetDevices") {
123      // The list of devices is asked. Return the object path.
124      std::vector<dbus::ObjectPath> object_paths;
125      object_paths.push_back(
126          dbus::ObjectPath("/org/freedesktop/NetworkManager/Devices/0"));
127
128      scoped_ptr<dbus::Response> response = dbus::Response::CreateEmpty();
129      dbus::MessageWriter writer(response.get());
130      writer.AppendArrayOfObjectPaths(object_paths);
131      return response.release();
132    }
133
134    LOG(ERROR) << "Unexpected method call: " << method_call->ToString();
135    return NULL;
136  }
137
138  // Creates a response for |mock_device_proxy_|.
139  dbus::Response* CreateDeviceProxyResponse(dbus::MethodCall* method_call,
140                                            Unused) {
141    if (method_call->GetInterface() == DBUS_INTERFACE_PROPERTIES &&
142        method_call->GetMember() == "Get") {
143      dbus::MessageReader reader(method_call);
144      std::string interface_name;
145      std::string property_name;
146      if (reader.PopString(&interface_name) &&
147          reader.PopString(&property_name)) {
148        // The device type is asked. Respond that the device type is wifi.
149        scoped_ptr<dbus::Response> response = dbus::Response::CreateEmpty();
150        dbus::MessageWriter writer(response.get());
151        // This matches NM_DEVICE_TYPE_WIFI in wifi_data_provider_linux.cc.
152        const int kDeviceTypeWifi = 2;
153        writer.AppendVariantOfUint32(kDeviceTypeWifi);
154        return response.release();
155      }
156    } else if (method_call->GetInterface() ==
157               "org.freedesktop.NetworkManager.Device.Wireless" &&
158               method_call->GetMember() == "GetAccessPoints") {
159      // The list of access points is asked. Return the object path.
160      scoped_ptr<dbus::Response> response = dbus::Response::CreateEmpty();
161      dbus::MessageWriter writer(response.get());
162      std::vector<dbus::ObjectPath> object_paths;
163      object_paths.push_back(
164          dbus::ObjectPath("/org/freedesktop/NetworkManager/AccessPoint/0"));
165      writer.AppendArrayOfObjectPaths(object_paths);
166      return response.release();
167    }
168
169    LOG(ERROR) << "Unexpected method call: " << method_call->ToString();
170    return NULL;
171  }
172
173
174  // Creates a response for |mock_access_point_proxy_|.
175  dbus::Response* CreateAccessPointProxyResponse(dbus::MethodCall* method_call,
176                                                 Unused) {
177    if (method_call->GetInterface() == DBUS_INTERFACE_PROPERTIES &&
178        method_call->GetMember() == "Get") {
179      dbus::MessageReader reader(method_call);
180
181      std::string interface_name;
182      std::string property_name;
183      if (reader.PopString(&interface_name) &&
184          reader.PopString(&property_name)) {
185        scoped_ptr<dbus::Response> response = dbus::Response::CreateEmpty();
186        dbus::MessageWriter writer(response.get());
187
188        if (property_name == "Ssid") {
189          const uint8 kSsid[] = {0x74, 0x65, 0x73, 0x74};  // "test"
190          dbus::MessageWriter variant_writer(response.get());
191          writer.OpenVariant("ay", &variant_writer);
192          variant_writer.AppendArrayOfBytes(kSsid, arraysize(kSsid));
193          writer.CloseContainer(&variant_writer);
194        } else if (property_name == "HwAddress") {
195          // This will be converted to "00-11-22-33-44-55".
196          const std::string kMacAddress = "00:11:22:33:44:55";
197          writer.AppendVariantOfString(kMacAddress);
198        } else if (property_name == "Strength") {
199          // This will be converted to -50.
200          const uint8 kStrength = 100;
201          writer.AppendVariantOfByte(kStrength);
202        } else if (property_name == "Frequency") {
203          // This will be converted to channel 4.
204          const uint32 kFrequency = 2427;
205          writer.AppendVariantOfUint32(kFrequency);
206        }
207        return response.release();
208      }
209    }
210
211    LOG(ERROR) << "Unexpected method call: " << method_call->ToString();
212    return NULL;
213  }
214};
215
216TEST_F(GeolocationWifiDataProviderLinuxTest, GetAccessPointData) {
217  WifiData::AccessPointDataSet access_point_data_set;
218  ASSERT_TRUE(wlan_api_->GetAccessPointData(&access_point_data_set));
219
220  ASSERT_EQ(1U, access_point_data_set.size());
221  AccessPointData access_point_data = *access_point_data_set.begin();
222
223  // Check the contents of the access point data.
224  // The expected values come from CreateAccessPointProxyResponse() above.
225  EXPECT_EQ("test", base::UTF16ToUTF8(access_point_data.ssid));
226  EXPECT_EQ("00-11-22-33-44-55",
227            base::UTF16ToUTF8(access_point_data.mac_address));
228  EXPECT_EQ(-50, access_point_data.radio_signal_strength);
229  EXPECT_EQ(4, access_point_data.channel);
230}
231
232}  // namespace content
233