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