config_unittest.cc - platform/system/connectivity/apmanager - Git at Google

 //
 // Copyright (C) 2014 The Android Open Source Project
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //

 #include "apmanager/config.h"

 #include <string>

 #include <base/strings/string_util.h>
 #include <base/strings/stringprintf.h>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>

 #if !defined(__ANDROID__)
 #include <chromeos/dbus/service_constants.h>
 #else
 #include "dbus/apmanager/dbus-constants.h"
 #endif

 #include "apmanager/error.h"
 #include "apmanager/fake_config_adaptor.h"
 #include "apmanager/fake_device_adaptor.h"
 #include "apmanager/mock_control.h"
 #include "apmanager/mock_device.h"
 #include "apmanager/mock_manager.h"

 using ::testing::_;
 using ::testing::Mock;
 using ::testing::Return;
 using ::testing::ReturnNew;
 using ::testing::SetArgumentPointee;
 namespace apmanager {

 namespace {

 const char kSsid[] = "TestSsid";
 const char kInterface[] = "uap0";
 const char kBridgeInterface[] = "br0";
 const char kControlInterfacePath[] = "/var/run/apmanager/hostapd/ctrl_iface";
 const char kPassphrase[] = "Passphrase";
 const char k24GHzHTCapab[] = "[LDPC SMPS-STATIC GF SHORT-GI-20]";
 const char k5GHzHTCapab[] =
     "[LDPC HT40+ SMPS-STATIC GF SHORT-GI-20 SHORT-GI-40]";

 const uint16_t k24GHzChannel = 6;
 const uint16_t k5GHzChannel = 36;

 const char kExpected80211gConfigContent[] = "ssid=TestSsid\n"
                                             "channel=6\n"
                                             "interface=uap0\n"
                                             "hw_mode=g\n"
                                             "driver=nl80211\n"
                                             "fragm_threshold=2346\n"
                                             "rts_threshold=2347\n";

 const char kExpected80211gBridgeConfigContent[] = "ssid=TestSsid\n"
                                                   "bridge=br0\n"
                                                   "channel=6\n"
                                                   "interface=uap0\n"
                                                   "hw_mode=g\n"
                                                   "driver=nl80211\n"
                                                   "fragm_threshold=2346\n"
                                                   "rts_threshold=2347\n";

 const char kExpected80211gCtrlIfaceConfigContent[] =
     "ssid=TestSsid\n"
     "channel=6\n"
     "interface=uap0\n"
     "hw_mode=g\n"
     "ctrl_interface=/var/run/apmanager/hostapd/ctrl_iface\n"
 #if !defined(__ANDROID__)
     "ctrl_interface_group=apmanager\n"
 #else
     "ctrl_interface_group=system\n"
 #endif  // __ANDROID__
     "driver=nl80211\n"
     "fragm_threshold=2346\n"
     "rts_threshold=2347\n";

 const char kExpected80211n5GHzConfigContent[] =
     "ssid=TestSsid\n"
     "channel=36\n"
     "interface=uap0\n"
     "ieee80211n=1\n"
     "ht_capab=[LDPC HT40+ SMPS-STATIC GF SHORT-GI-20 SHORT-GI-40]\n"
     "hw_mode=a\n"
     "driver=nl80211\n"
     "fragm_threshold=2346\n"
     "rts_threshold=2347\n";

 const char kExpected80211n24GHzConfigContent[] =
     "ssid=TestSsid\n"
     "channel=6\n"
     "interface=uap0\n"
     "ieee80211n=1\n"
     "ht_capab=[LDPC SMPS-STATIC GF SHORT-GI-20]\n"
     "hw_mode=g\n"
     "driver=nl80211\n"
     "fragm_threshold=2346\n"
     "rts_threshold=2347\n";

 const char kExpectedRsnConfigContent[] = "ssid=TestSsid\n"
                                          "channel=6\n"
                                          "interface=uap0\n"
                                          "hw_mode=g\n"
                                          "wpa=2\n"
                                          "rsn_pairwise=CCMP\n"
                                          "wpa_key_mgmt=WPA-PSK\n"
                                          "wpa_passphrase=Passphrase\n"
                                          "driver=nl80211\n"
                                          "fragm_threshold=2346\n"
                                          "rts_threshold=2347\n";

 }  // namespace

 class ConfigTest : public testing::Test {
  public:
   ConfigTest()
       : manager_(&control_interface_) {
     ON_CALL(control_interface_, CreateDeviceAdaptorRaw())
         .WillByDefault(ReturnNew<FakeDeviceAdaptor>());
     ON_CALL(control_interface_, CreateConfigAdaptorRaw())
         .WillByDefault(ReturnNew<FakeConfigAdaptor>());
     // Defer creation of Config object to allow ControlInterface to setup
     // expectations for generating fake adaptors.
     config_.reset(new Config(&manager_, 0));
   }

   void SetupDevice(const std::string& interface) {
     // Setup mock device.
     device_ = new MockDevice(&manager_);
     device_->SetPreferredApInterface(interface);
     EXPECT_CALL(manager_, GetDeviceFromInterfaceName(interface))
         .WillRepeatedly(Return(device_));
   }

   void VerifyError(const Error& error,
                    Error::Type expected_type,
                    const std::string& expected_message_start) {
     EXPECT_EQ(expected_type, error.type());
     EXPECT_TRUE(base::StartsWith(error.message(), expected_message_start,
                                  base::CompareCase::INSENSITIVE_ASCII));
   }

  protected:
   MockControl control_interface_;
   MockManager manager_;
   scoped_refptr<MockDevice> device_;
   std::unique_ptr<Config> config_;
 };

 TEST_F(ConfigTest, GetFrequencyFromChannel) {
   uint32_t frequency;
   // Invalid channel.
   EXPECT_FALSE(Config::GetFrequencyFromChannel(0, &frequency));
   EXPECT_FALSE(Config::GetFrequencyFromChannel(166, &frequency));
   EXPECT_FALSE(Config::GetFrequencyFromChannel(14, &frequency));
   EXPECT_FALSE(Config::GetFrequencyFromChannel(33, &frequency));

   // Valid channel.
   const uint32_t kChannel1Frequency = 2412;
   const uint32_t kChannel13Frequency = 2472;
   const uint32_t kChannel34Frequency = 5170;
   const uint32_t kChannel165Frequency = 5825;
   EXPECT_TRUE(Config::GetFrequencyFromChannel(1, &frequency));
   EXPECT_EQ(kChannel1Frequency, frequency);
   EXPECT_TRUE(Config::GetFrequencyFromChannel(13, &frequency));
   EXPECT_EQ(kChannel13Frequency, frequency);
   EXPECT_TRUE(Config::GetFrequencyFromChannel(34, &frequency));
   EXPECT_EQ(kChannel34Frequency, frequency);
   EXPECT_TRUE(Config::GetFrequencyFromChannel(165, &frequency));
   EXPECT_EQ(kChannel165Frequency, frequency);
 }

 TEST_F(ConfigTest, ValidateSsid) {
   Error error;
   // SSID must contain between 1 and 32 characters.
   EXPECT_TRUE(config_->ValidateSsid(&error, "s"));
   EXPECT_TRUE(config_->ValidateSsid(&error, std::string(32, 'c')));
   EXPECT_FALSE(config_->ValidateSsid(&error, ""));
   EXPECT_FALSE(config_->ValidateSsid(&error, std::string(33, 'c')));
 }

 TEST_F(ConfigTest, ValidateSecurityMode) {
   Error error;
   EXPECT_TRUE(config_->ValidateSecurityMode(&error, kSecurityModeNone));
   EXPECT_TRUE(config_->ValidateSecurityMode(&error, kSecurityModeRSN));
   EXPECT_FALSE(config_->ValidateSecurityMode(&error, "InvalidSecurityMode"));
 }

 TEST_F(ConfigTest, ValidatePassphrase) {
   Error error;
   // Passpharse must contain between 8 and 63 characters.
   EXPECT_TRUE(config_->ValidatePassphrase(&error, std::string(8, 'c')));
   EXPECT_TRUE(config_->ValidatePassphrase(&error, std::string(63, 'c')));
   EXPECT_FALSE(config_->ValidatePassphrase(&error, std::string(7, 'c')));
   EXPECT_FALSE(config_->ValidatePassphrase(&error, std::string(64, 'c')));
 }

 TEST_F(ConfigTest, ValidateHwMode) {
   Error error;
   EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211a));
   EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211b));
   EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211g));
   EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211n));
   EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211ac));
   EXPECT_FALSE(config_->ValidateSecurityMode(&error, "InvalidHwMode"));
 }

 TEST_F(ConfigTest, ValidateOperationMode) {
   Error error;
   EXPECT_TRUE(config_->ValidateOperationMode(&error, kOperationModeServer));
   EXPECT_TRUE(config_->ValidateOperationMode(&error, kOperationModeBridge));
   EXPECT_FALSE(config_->ValidateOperationMode(&error, "InvalidMode"));
 }

 TEST_F(ConfigTest, ValidateChannel) {
   Error error;
   EXPECT_TRUE(config_->ValidateChannel(&error, 1));
   EXPECT_TRUE(config_->ValidateChannel(&error, 13));
   EXPECT_TRUE(config_->ValidateChannel(&error, 34));
   EXPECT_TRUE(config_->ValidateChannel(&error, 165));
   EXPECT_FALSE(config_->ValidateChannel(&error, 0));
   EXPECT_FALSE(config_->ValidateChannel(&error, 14));
   EXPECT_FALSE(config_->ValidateChannel(&error, 33));
   EXPECT_FALSE(config_->ValidateChannel(&error, 166));
 }

 TEST_F(ConfigTest, NoSsid) {
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);
   config_->SetInterfaceName(kInterface);

   std::string config_content;
   Error error;
   EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
   VerifyError(error, Error::kInvalidConfiguration, "SSID not specified");
 }

 TEST_F(ConfigTest, NoInterface) {
   // Basic 80211.g configuration.
   config_->SetSsid(kSsid);
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);

   // No device available, fail to generate config file.
   Error error;
   std::string config_content;
   EXPECT_CALL(manager_, GetAvailableDevice()).WillOnce(Return(nullptr));
   EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
   VerifyError(error, Error::kInternalError, "No device available");
   Mock::VerifyAndClearExpectations(&manager_);

   // Device available, config file should be generated without any problem.
   scoped_refptr<MockDevice> device = new MockDevice(&manager_);
   device->SetPreferredApInterface(kInterface);
   error.Reset();
   EXPECT_CALL(manager_, GetAvailableDevice()).WillOnce(Return(device));
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
   EXPECT_NE(std::string::npos, config_content.find(
                                    kExpected80211gConfigContent))
       << "Expected to find the following config...\n"
       << kExpected80211gConfigContent << "..within content...\n"
       << config_content;
   EXPECT_TRUE(error.IsSuccess());
   Mock::VerifyAndClearExpectations(&manager_);
 }

 TEST_F(ConfigTest, InvalidInterface) {
   // Basic 80211.g configuration.
   config_->SetSsid(kSsid);
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);
   config_->SetInterfaceName(kInterface);

   // Unable to find the device, fail to generate config file.
   Error error;
   std::string config_content;
   EXPECT_CALL(manager_, GetDeviceFromInterfaceName(kInterface))
       .WillOnce(Return(nullptr));
   EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
   VerifyError(error,
               Error::kInvalidConfiguration,
               "Unable to find device for the specified interface");
   Mock::VerifyAndClearExpectations(&manager_);
 }

 TEST_F(ConfigTest, BridgeMode) {
   config_->SetSsid(kSsid);
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);
   config_->SetInterfaceName(kInterface);
   config_->SetOperationMode(kOperationModeBridge);

   // Bridge interface required for bridge mode.
   Error error;
   std::string config_content;
   EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
   VerifyError(
       error, Error::kInvalidConfiguration, "Bridge interface not specified");

   // Set bridge interface, config file should be generated without error.
   config_->SetBridgeInterface(kBridgeInterface);
   // Setup mock device.
   SetupDevice(kInterface);
   error.Reset();
   std::string config_content1;
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content1));
   EXPECT_NE(std::string::npos, config_content1.find(
                                    kExpected80211gBridgeConfigContent))
       << "Expected to find the following config...\n"
       << kExpected80211gBridgeConfigContent << "..within content...\n"
       << config_content1;
   EXPECT_TRUE(error.IsSuccess());
 }

 TEST_F(ConfigTest, 80211gConfig) {
   config_->SetSsid(kSsid);
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);
   config_->SetInterfaceName(kInterface);

   // Setup mock device.
   SetupDevice(kInterface);

   std::string config_content;
   Error error;
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
   EXPECT_NE(std::string::npos, config_content.find(
                                    kExpected80211gConfigContent))
       << "Expected to find the following config...\n"
       << kExpected80211gConfigContent << "..within content...\n"
       << config_content;
   EXPECT_TRUE(error.IsSuccess());
 }

 TEST_F(ConfigTest, 80211gConfigWithControlInterface) {
   config_->SetSsid(kSsid);
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);
   config_->SetInterfaceName(kInterface);
   config_->set_control_interface(kControlInterfacePath);

   // Setup mock device.
   SetupDevice(kInterface);

   std::string config_content;
   Error error;
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
   EXPECT_NE(std::string::npos, config_content.find(
                                    kExpected80211gCtrlIfaceConfigContent))
       << "Expected to find the following config...\n"
       << kExpected80211gCtrlIfaceConfigContent << "..within content...\n"
       << config_content;
   EXPECT_TRUE(error.IsSuccess());
 }

 TEST_F(ConfigTest, 80211nConfig) {
   config_->SetSsid(kSsid);
   config_->SetHwMode(kHwMode80211n);
   config_->SetInterfaceName(kInterface);

   // Setup mock device.
   SetupDevice(kInterface);

   // 5GHz channel.
   config_->SetChannel(k5GHzChannel);
   std::string ghz5_config_content;
   Error error;
   std::string ht_capab_5ghz(k5GHzHTCapab);
   EXPECT_CALL(*device_.get(), GetHTCapability(k5GHzChannel, _))
       .WillOnce(DoAll(SetArgumentPointee<1>(ht_capab_5ghz), Return(true)));
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &ghz5_config_content));
   EXPECT_NE(std::string::npos, ghz5_config_content.find(
                                    kExpected80211n5GHzConfigContent))
       << "Expected to find the following config...\n"
       << kExpected80211n5GHzConfigContent << "..within content...\n"
       << ghz5_config_content;
   EXPECT_TRUE(error.IsSuccess());
   Mock::VerifyAndClearExpectations(device_.get());

   // 2.4GHz channel.
   config_->SetChannel(k24GHzChannel);
   std::string ghz24_config_content;
   error.Reset();
   std::string ht_capab_24ghz(k24GHzHTCapab);
   EXPECT_CALL(*device_.get(), GetHTCapability(k24GHzChannel, _))
       .WillOnce(DoAll(SetArgumentPointee<1>(ht_capab_24ghz), Return(true)));
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &ghz24_config_content));
   EXPECT_NE(std::string::npos, ghz24_config_content.find(
                                    kExpected80211n24GHzConfigContent))
       << "Expected to find the following config...\n"
       << kExpected80211n24GHzConfigContent << "..within content...\n"
       << ghz24_config_content;
   EXPECT_TRUE(error.IsSuccess());
   Mock::VerifyAndClearExpectations(device_.get());
 }

 TEST_F(ConfigTest, RsnConfig) {
   config_->SetSsid(kSsid);
   config_->SetChannel(k24GHzChannel);
   config_->SetHwMode(kHwMode80211g);
   config_->SetInterfaceName(kInterface);
   config_->SetSecurityMode(kSecurityModeRSN);

   // Setup mock device.
   SetupDevice(kInterface);

   // Failed due to no passphrase specified.
   std::string config_content;
   Error error;
   EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
   VerifyError(
       error,
       Error::kInvalidConfiguration,
       base::StringPrintf("Passphrase not set for security mode: %s",
                          kSecurityModeRSN));

   error.Reset();
   config_->SetPassphrase(kPassphrase);
   EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
   EXPECT_NE(std::string::npos, config_content.find(
                                    kExpectedRsnConfigContent))
       << "Expected to find the following config...\n"
       << kExpectedRsnConfigContent << "..within content...\n"
       << config_content;
   EXPECT_TRUE(error.IsSuccess());
 }

 }  // namespace apmanager
	//
	// Copyright (C) 2014 The Android Open Source Project
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.
	//

	#include "apmanager/config.h"

	#include <string>

	#include <base/strings/string_util.h>
	#include <base/strings/stringprintf.h>
	#include <gmock/gmock.h>
	#include <gtest/gtest.h>

	#if !defined(__ANDROID__)
	#include <chromeos/dbus/service_constants.h>
	#else
	#include "dbus/apmanager/dbus-constants.h"
	#endif

	#include "apmanager/error.h"
	#include "apmanager/fake_config_adaptor.h"
	#include "apmanager/fake_device_adaptor.h"
	#include "apmanager/mock_control.h"
	#include "apmanager/mock_device.h"
	#include "apmanager/mock_manager.h"

	using ::testing::_;
	using ::testing::Mock;
	using ::testing::Return;
	using ::testing::ReturnNew;
	using ::testing::SetArgumentPointee;
	namespace apmanager {

	namespace {

	const char kSsid[] = "TestSsid";
	const char kInterface[] = "uap0";
	const char kBridgeInterface[] = "br0";
	const char kControlInterfacePath[] = "/var/run/apmanager/hostapd/ctrl_iface";
	const char kPassphrase[] = "Passphrase";
	const char k24GHzHTCapab[] = "[LDPC SMPS-STATIC GF SHORT-GI-20]";
	const char k5GHzHTCapab[] =
	"[LDPC HT40+ SMPS-STATIC GF SHORT-GI-20 SHORT-GI-40]";

	const uint16_t k24GHzChannel = 6;
	const uint16_t k5GHzChannel = 36;

	const char kExpected80211gConfigContent[] = "ssid=TestSsid\n"
	"channel=6\n"
	"interface=uap0\n"
	"hw_mode=g\n"
	"driver=nl80211\n"
	"fragm_threshold=2346\n"
	"rts_threshold=2347\n";

	const char kExpected80211gBridgeConfigContent[] = "ssid=TestSsid\n"
	"bridge=br0\n"
	"channel=6\n"
	"interface=uap0\n"
	"hw_mode=g\n"
	"driver=nl80211\n"
	"fragm_threshold=2346\n"
	"rts_threshold=2347\n";

	const char kExpected80211gCtrlIfaceConfigContent[] =
	"ssid=TestSsid\n"
	"channel=6\n"
	"interface=uap0\n"
	"hw_mode=g\n"
	"ctrl_interface=/var/run/apmanager/hostapd/ctrl_iface\n"
	#if !defined(__ANDROID__)
	"ctrl_interface_group=apmanager\n"
	#else
	"ctrl_interface_group=system\n"
	#endif // __ANDROID__
	"driver=nl80211\n"
	"fragm_threshold=2346\n"
	"rts_threshold=2347\n";

	const char kExpected80211n5GHzConfigContent[] =
	"ssid=TestSsid\n"
	"channel=36\n"
	"interface=uap0\n"
	"ieee80211n=1\n"
	"ht_capab=[LDPC HT40+ SMPS-STATIC GF SHORT-GI-20 SHORT-GI-40]\n"
	"hw_mode=a\n"
	"driver=nl80211\n"
	"fragm_threshold=2346\n"
	"rts_threshold=2347\n";

	const char kExpected80211n24GHzConfigContent[] =
	"ssid=TestSsid\n"
	"channel=6\n"
	"interface=uap0\n"
	"ieee80211n=1\n"
	"ht_capab=[LDPC SMPS-STATIC GF SHORT-GI-20]\n"
	"hw_mode=g\n"
	"driver=nl80211\n"
	"fragm_threshold=2346\n"
	"rts_threshold=2347\n";

	const char kExpectedRsnConfigContent[] = "ssid=TestSsid\n"
	"channel=6\n"
	"interface=uap0\n"
	"hw_mode=g\n"
	"wpa=2\n"
	"rsn_pairwise=CCMP\n"
	"wpa_key_mgmt=WPA-PSK\n"
	"wpa_passphrase=Passphrase\n"
	"driver=nl80211\n"
	"fragm_threshold=2346\n"
	"rts_threshold=2347\n";

	} // namespace

	class ConfigTest : public testing::Test {
	public:
	ConfigTest()
	: manager_(&control_interface_) {
	ON_CALL(control_interface_, CreateDeviceAdaptorRaw())
	.WillByDefault(ReturnNew<FakeDeviceAdaptor>());
	ON_CALL(control_interface_, CreateConfigAdaptorRaw())
	.WillByDefault(ReturnNew<FakeConfigAdaptor>());
	// Defer creation of Config object to allow ControlInterface to setup
	// expectations for generating fake adaptors.
	config_.reset(new Config(&manager_, 0));
	}

	void SetupDevice(const std::string& interface) {
	// Setup mock device.
	device_ = new MockDevice(&manager_);
	device_->SetPreferredApInterface(interface);
	EXPECT_CALL(manager_, GetDeviceFromInterfaceName(interface))
	.WillRepeatedly(Return(device_));
	}

	void VerifyError(const Error& error,
	Error::Type expected_type,
	const std::string& expected_message_start) {
	EXPECT_EQ(expected_type, error.type());
	EXPECT_TRUE(base::StartsWith(error.message(), expected_message_start,
	base::CompareCase::INSENSITIVE_ASCII));
	}

	protected:
	MockControl control_interface_;
	MockManager manager_;
	scoped_refptr<MockDevice> device_;
	std::unique_ptr<Config> config_;
	};

	TEST_F(ConfigTest, GetFrequencyFromChannel) {
	uint32_t frequency;
	// Invalid channel.
	EXPECT_FALSE(Config::GetFrequencyFromChannel(0, &frequency));
	EXPECT_FALSE(Config::GetFrequencyFromChannel(166, &frequency));
	EXPECT_FALSE(Config::GetFrequencyFromChannel(14, &frequency));
	EXPECT_FALSE(Config::GetFrequencyFromChannel(33, &frequency));

	// Valid channel.
	const uint32_t kChannel1Frequency = 2412;
	const uint32_t kChannel13Frequency = 2472;
	const uint32_t kChannel34Frequency = 5170;
	const uint32_t kChannel165Frequency = 5825;
	EXPECT_TRUE(Config::GetFrequencyFromChannel(1, &frequency));
	EXPECT_EQ(kChannel1Frequency, frequency);
	EXPECT_TRUE(Config::GetFrequencyFromChannel(13, &frequency));
	EXPECT_EQ(kChannel13Frequency, frequency);
	EXPECT_TRUE(Config::GetFrequencyFromChannel(34, &frequency));
	EXPECT_EQ(kChannel34Frequency, frequency);
	EXPECT_TRUE(Config::GetFrequencyFromChannel(165, &frequency));
	EXPECT_EQ(kChannel165Frequency, frequency);
	}

	TEST_F(ConfigTest, ValidateSsid) {
	Error error;
	// SSID must contain between 1 and 32 characters.
	EXPECT_TRUE(config_->ValidateSsid(&error, "s"));
	EXPECT_TRUE(config_->ValidateSsid(&error, std::string(32, 'c')));
	EXPECT_FALSE(config_->ValidateSsid(&error, ""));
	EXPECT_FALSE(config_->ValidateSsid(&error, std::string(33, 'c')));
	}

	TEST_F(ConfigTest, ValidateSecurityMode) {
	Error error;
	EXPECT_TRUE(config_->ValidateSecurityMode(&error, kSecurityModeNone));
	EXPECT_TRUE(config_->ValidateSecurityMode(&error, kSecurityModeRSN));
	EXPECT_FALSE(config_->ValidateSecurityMode(&error, "InvalidSecurityMode"));
	}

	TEST_F(ConfigTest, ValidatePassphrase) {
	Error error;
	// Passpharse must contain between 8 and 63 characters.
	EXPECT_TRUE(config_->ValidatePassphrase(&error, std::string(8, 'c')));
	EXPECT_TRUE(config_->ValidatePassphrase(&error, std::string(63, 'c')));
	EXPECT_FALSE(config_->ValidatePassphrase(&error, std::string(7, 'c')));
	EXPECT_FALSE(config_->ValidatePassphrase(&error, std::string(64, 'c')));
	}

	TEST_F(ConfigTest, ValidateHwMode) {
	Error error;
	EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211a));
	EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211b));
	EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211g));
	EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211n));
	EXPECT_TRUE(config_->ValidateHwMode(&error, kHwMode80211ac));
	EXPECT_FALSE(config_->ValidateSecurityMode(&error, "InvalidHwMode"));
	}

	TEST_F(ConfigTest, ValidateOperationMode) {
	Error error;
	EXPECT_TRUE(config_->ValidateOperationMode(&error, kOperationModeServer));
	EXPECT_TRUE(config_->ValidateOperationMode(&error, kOperationModeBridge));
	EXPECT_FALSE(config_->ValidateOperationMode(&error, "InvalidMode"));
	}

	TEST_F(ConfigTest, ValidateChannel) {
	Error error;
	EXPECT_TRUE(config_->ValidateChannel(&error, 1));
	EXPECT_TRUE(config_->ValidateChannel(&error, 13));
	EXPECT_TRUE(config_->ValidateChannel(&error, 34));
	EXPECT_TRUE(config_->ValidateChannel(&error, 165));
	EXPECT_FALSE(config_->ValidateChannel(&error, 0));
	EXPECT_FALSE(config_->ValidateChannel(&error, 14));
	EXPECT_FALSE(config_->ValidateChannel(&error, 33));
	EXPECT_FALSE(config_->ValidateChannel(&error, 166));
	}

	TEST_F(ConfigTest, NoSsid) {
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);
	config_->SetInterfaceName(kInterface);

	std::string config_content;
	Error error;
	EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
	VerifyError(error, Error::kInvalidConfiguration, "SSID not specified");
	}

	TEST_F(ConfigTest, NoInterface) {
	// Basic 80211.g configuration.
	config_->SetSsid(kSsid);
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);

	// No device available, fail to generate config file.
	Error error;
	std::string config_content;
	EXPECT_CALL(manager_, GetAvailableDevice()).WillOnce(Return(nullptr));
	EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
	VerifyError(error, Error::kInternalError, "No device available");
	Mock::VerifyAndClearExpectations(&manager_);

	// Device available, config file should be generated without any problem.
	scoped_refptr<MockDevice> device = new MockDevice(&manager_);
	device->SetPreferredApInterface(kInterface);
	error.Reset();
	EXPECT_CALL(manager_, GetAvailableDevice()).WillOnce(Return(device));
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
	EXPECT_NE(std::string::npos, config_content.find(
	kExpected80211gConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpected80211gConfigContent << "..within content...\n"
	<< config_content;
	EXPECT_TRUE(error.IsSuccess());
	Mock::VerifyAndClearExpectations(&manager_);
	}

	TEST_F(ConfigTest, InvalidInterface) {
	// Basic 80211.g configuration.
	config_->SetSsid(kSsid);
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);
	config_->SetInterfaceName(kInterface);

	// Unable to find the device, fail to generate config file.
	Error error;
	std::string config_content;
	EXPECT_CALL(manager_, GetDeviceFromInterfaceName(kInterface))
	.WillOnce(Return(nullptr));
	EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
	VerifyError(error,
	Error::kInvalidConfiguration,
	"Unable to find device for the specified interface");
	Mock::VerifyAndClearExpectations(&manager_);
	}

	TEST_F(ConfigTest, BridgeMode) {
	config_->SetSsid(kSsid);
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);
	config_->SetInterfaceName(kInterface);
	config_->SetOperationMode(kOperationModeBridge);

	// Bridge interface required for bridge mode.
	Error error;
	std::string config_content;
	EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
	VerifyError(
	error, Error::kInvalidConfiguration, "Bridge interface not specified");

	// Set bridge interface, config file should be generated without error.
	config_->SetBridgeInterface(kBridgeInterface);
	// Setup mock device.
	SetupDevice(kInterface);
	error.Reset();
	std::string config_content1;
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content1));
	EXPECT_NE(std::string::npos, config_content1.find(
	kExpected80211gBridgeConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpected80211gBridgeConfigContent << "..within content...\n"
	<< config_content1;
	EXPECT_TRUE(error.IsSuccess());
	}

	TEST_F(ConfigTest, 80211gConfig) {
	config_->SetSsid(kSsid);
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);
	config_->SetInterfaceName(kInterface);

	// Setup mock device.
	SetupDevice(kInterface);

	std::string config_content;
	Error error;
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
	EXPECT_NE(std::string::npos, config_content.find(
	kExpected80211gConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpected80211gConfigContent << "..within content...\n"
	<< config_content;
	EXPECT_TRUE(error.IsSuccess());
	}

	TEST_F(ConfigTest, 80211gConfigWithControlInterface) {
	config_->SetSsid(kSsid);
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);
	config_->SetInterfaceName(kInterface);
	config_->set_control_interface(kControlInterfacePath);

	// Setup mock device.
	SetupDevice(kInterface);

	std::string config_content;
	Error error;
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
	EXPECT_NE(std::string::npos, config_content.find(
	kExpected80211gCtrlIfaceConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpected80211gCtrlIfaceConfigContent << "..within content...\n"
	<< config_content;
	EXPECT_TRUE(error.IsSuccess());
	}

	TEST_F(ConfigTest, 80211nConfig) {
	config_->SetSsid(kSsid);
	config_->SetHwMode(kHwMode80211n);
	config_->SetInterfaceName(kInterface);

	// Setup mock device.
	SetupDevice(kInterface);

	// 5GHz channel.
	config_->SetChannel(k5GHzChannel);
	std::string ghz5_config_content;
	Error error;
	std::string ht_capab_5ghz(k5GHzHTCapab);
	EXPECT_CALL(*device_.get(), GetHTCapability(k5GHzChannel, _))
	.WillOnce(DoAll(SetArgumentPointee<1>(ht_capab_5ghz), Return(true)));
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &ghz5_config_content));
	EXPECT_NE(std::string::npos, ghz5_config_content.find(
	kExpected80211n5GHzConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpected80211n5GHzConfigContent << "..within content...\n"
	<< ghz5_config_content;
	EXPECT_TRUE(error.IsSuccess());
	Mock::VerifyAndClearExpectations(device_.get());

	// 2.4GHz channel.
	config_->SetChannel(k24GHzChannel);
	std::string ghz24_config_content;
	error.Reset();
	std::string ht_capab_24ghz(k24GHzHTCapab);
	EXPECT_CALL(*device_.get(), GetHTCapability(k24GHzChannel, _))
	.WillOnce(DoAll(SetArgumentPointee<1>(ht_capab_24ghz), Return(true)));
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &ghz24_config_content));
	EXPECT_NE(std::string::npos, ghz24_config_content.find(
	kExpected80211n24GHzConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpected80211n24GHzConfigContent << "..within content...\n"
	<< ghz24_config_content;
	EXPECT_TRUE(error.IsSuccess());
	Mock::VerifyAndClearExpectations(device_.get());
	}

	TEST_F(ConfigTest, RsnConfig) {
	config_->SetSsid(kSsid);
	config_->SetChannel(k24GHzChannel);
	config_->SetHwMode(kHwMode80211g);
	config_->SetInterfaceName(kInterface);
	config_->SetSecurityMode(kSecurityModeRSN);

	// Setup mock device.
	SetupDevice(kInterface);

	// Failed due to no passphrase specified.
	std::string config_content;
	Error error;
	EXPECT_FALSE(config_->GenerateConfigFile(&error, &config_content));
	VerifyError(
	error,
	Error::kInvalidConfiguration,
	base::StringPrintf("Passphrase not set for security mode: %s",
	kSecurityModeRSN));

	error.Reset();
	config_->SetPassphrase(kPassphrase);
	EXPECT_TRUE(config_->GenerateConfigFile(&error, &config_content));
	EXPECT_NE(std::string::npos, config_content.find(
	kExpectedRsnConfigContent))
	<< "Expected to find the following config...\n"
	<< kExpectedRsnConfigContent << "..within content...\n"
	<< config_content;
	EXPECT_TRUE(error.IsSuccess());
	}

	} // namespace apmanager