// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/message_loop/message_loop.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/shill_manager_client.h"
#include "chromeos/network/geolocation_handler.h"
#include "content/browser/geolocation/wifi_data_provider_chromeos.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/cros_system_api/dbus/service_constants.h"

namespace content {

class GeolocationChromeOsWifiDataProviderTest : public testing::Test {
 protected:
  GeolocationChromeOsWifiDataProviderTest() {
  }

  virtual void SetUp() OVERRIDE {
    chromeos::DBusThreadManager::InitializeWithStub();
    chromeos::NetworkHandler::Initialize();
    manager_client_ =
        chromeos::DBusThreadManager::Get()->GetShillManagerClient();
    manager_test_ = manager_client_->GetTestInterface();
    provider_ = new WifiDataProviderChromeOs();
    message_loop_.RunUntilIdle();
  }

  virtual void TearDown() OVERRIDE {
    provider_ = NULL;
    chromeos::NetworkHandler::Shutdown();
    chromeos::DBusThreadManager::Shutdown();
  }

  bool GetAccessPointData() {
    return provider_->GetAccessPointData(&ap_data_);
  }

  void AddAccessPoints(int ssids, int aps_per_ssid) {
    for (int i = 0; i < ssids; ++i) {
      for (int j = 0; j < aps_per_ssid; ++j) {
        base::DictionaryValue properties;
        std::string mac_address =
            base::StringPrintf("%02X:%02X:%02X:%02X:%02X:%02X",
                               i, j, 3, 4, 5, 6);
        std::string channel = base::StringPrintf("%d", i * 10 + j);
        std::string strength = base::StringPrintf("%d", i * 100 + j);
        properties.SetStringWithoutPathExpansion(
            shill::kGeoMacAddressProperty, mac_address);
        properties.SetStringWithoutPathExpansion(
            shill::kGeoChannelProperty, channel);
        properties.SetStringWithoutPathExpansion(
            shill::kGeoSignalStrengthProperty, strength);
        manager_test_->AddGeoNetwork(shill::kTypeWifi, properties);
      }
    }
    message_loop_.RunUntilIdle();
  }

  base::MessageLoopForUI message_loop_;
  scoped_refptr<WifiDataProviderChromeOs> provider_;
  chromeos::ShillManagerClient* manager_client_;
  chromeos::ShillManagerClient::TestInterface* manager_test_;
  WifiData::AccessPointDataSet ap_data_;
};

TEST_F(GeolocationChromeOsWifiDataProviderTest, NoAccessPoints) {
  message_loop_.RunUntilIdle();
  // Initial call to GetAccessPointData requests data and will return false.
  EXPECT_FALSE(GetAccessPointData());
  message_loop_.RunUntilIdle();
  // Additional call to GetAccessPointData also returns false with no devices.
  EXPECT_FALSE(GetAccessPointData());
  EXPECT_EQ(0u, ap_data_.size());
}

TEST_F(GeolocationChromeOsWifiDataProviderTest, GetOneAccessPoint) {
  message_loop_.RunUntilIdle();
  EXPECT_FALSE(GetAccessPointData());

  AddAccessPoints(1, 1);
  EXPECT_TRUE(GetAccessPointData());
  ASSERT_EQ(1u, ap_data_.size());
  EXPECT_EQ("00:00:03:04:05:06", UTF16ToUTF8(ap_data_.begin()->mac_address));
}

TEST_F(GeolocationChromeOsWifiDataProviderTest, GetManyAccessPoints) {
  message_loop_.RunUntilIdle();
  EXPECT_FALSE(GetAccessPointData());

  AddAccessPoints(3, 4);
  EXPECT_TRUE(GetAccessPointData());
  ASSERT_EQ(12u, ap_data_.size());
}

}  // namespace content