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/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
  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   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
 216 TEST_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