root/net/proxy/proxy_config_service_linux_unittest.cc

DEFINITIONS

1. Reset
2. GetVar
3. SetVar
4. UnSetVar
5. Reset
6. Init
7. ShutDown
8. SetUpNotifications
9. GetNotificationTaskRunner
10. GetConfigSource
11. GetString
12. GetBool
13. GetInt
14. GetStringList
15. BypassListIsReversed
16. MatchHostsUsingSuffixMatching
17. config_service_
18. SetupAndInitialFetch
19. SyncGetLatestProxyConfig
20. Init
21. GetLatestConfigOnIOThread
22. CleanUp
23. Wait
24. SetUp
25. TearDown
26. TEST_F
27. TEST_F
28. TEST_F
29. TEST_F
30. TEST_F

// Copyright (c) 2012 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 "net/proxy/proxy_config_service_linux.h"

#include <map>
#include <string>
#include <vector>

#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/file_util.h"
#include "base/files/file_path.h"
#include "base/format_macros.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread.h"
#include "net/proxy/proxy_config.h"
#include "net/proxy/proxy_config_service_common_unittest.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"

namespace net {
namespace {

// Set of values for all environment variables that we might
// query. NULL represents an unset variable.
struct EnvVarValues {
  // The strange capitalization is so that the field matches the
  // environment variable name exactly.
  const char *DESKTOP_SESSION, *HOME,
      *KDEHOME, *KDE_SESSION_VERSION,
      *auto_proxy, *all_proxy,
      *http_proxy, *https_proxy, *ftp_proxy,
      *SOCKS_SERVER, *SOCKS_VERSION,
      *no_proxy;
};

// Undo macro pollution from GDK includes (from message_loop.h).
#undef TRUE
#undef FALSE

// So as to distinguish between an unset gconf boolean variable and
// one that is false.
enum BoolSettingValue {
  UNSET = 0, TRUE, FALSE
};

// Set of values for all gconf settings that we might query.
struct GConfValues {
  // strings
  const char *mode, *autoconfig_url,
      *http_host, *secure_host, *ftp_host, *socks_host;
  // integers
  int http_port, secure_port, ftp_port, socks_port;
  // booleans
  BoolSettingValue use_proxy, same_proxy, use_auth;
  // string list
  std::vector<std::string> ignore_hosts;
};

// Mapping from a setting name to the location of the corresponding
// value (inside a EnvVarValues or GConfValues struct).
template<typename key_type, typename value_type>
struct SettingsTable {
  typedef std::map<key_type, value_type*> map_type;

  // Gets the value from its location
  value_type Get(key_type key) {
    typename map_type::const_iterator it = settings.find(key);
    // In case there's a typo or the unittest becomes out of sync.
    CHECK(it != settings.end()) << "key " << key << " not found";
    value_type* value_ptr = it->second;
    return *value_ptr;
  }

  map_type settings;
};

class MockEnvironment : public base::Environment {
 public:
  MockEnvironment() {
#define ENTRY(x) table[#x] = &values.x
    ENTRY(DESKTOP_SESSION);
    ENTRY(HOME);
    ENTRY(KDEHOME);
    ENTRY(KDE_SESSION_VERSION);
    ENTRY(auto_proxy);
    ENTRY(all_proxy);
    ENTRY(http_proxy);
    ENTRY(https_proxy);
    ENTRY(ftp_proxy);
    ENTRY(no_proxy);
    ENTRY(SOCKS_SERVER);
    ENTRY(SOCKS_VERSION);
#undef ENTRY
    Reset();
  }

  // Zeroes all environment values.
  void Reset() {
    EnvVarValues zero_values = { 0 };
    values = zero_values;
  }

  // Begin base::Environment implementation.
  virtual bool GetVar(const char* variable_name, std::string* result) OVERRIDE {
    std::map<std::string, const char**>::iterator it =
        table.find(variable_name);
    if (it != table.end() && *(it->second) != NULL) {
      // Note that the variable may be defined but empty.
      *result = *(it->second);
      return true;
    }
    return false;
  }

  virtual bool SetVar(const char* variable_name, const std::string& new_value)
      OVERRIDE {
    ADD_FAILURE();
    return false;
  }

  virtual bool UnSetVar(const char* variable_name) OVERRIDE {
    ADD_FAILURE();
    return false;
  }
  // End base::Environment implementation.

  // Intentionally public, for convenience when setting up a test.
  EnvVarValues values;

 private:
  std::map<std::string, const char**> table;
};

class MockSettingGetter
    : public ProxyConfigServiceLinux::SettingGetter {
 public:
  typedef ProxyConfigServiceLinux::SettingGetter SettingGetter;
  MockSettingGetter() {
#define ENTRY(key, field) \
      strings_table.settings[SettingGetter::key] = &values.field
    ENTRY(PROXY_MODE, mode);
    ENTRY(PROXY_AUTOCONF_URL, autoconfig_url);
    ENTRY(PROXY_HTTP_HOST, http_host);
    ENTRY(PROXY_HTTPS_HOST, secure_host);
    ENTRY(PROXY_FTP_HOST, ftp_host);
    ENTRY(PROXY_SOCKS_HOST, socks_host);
#undef ENTRY
#define ENTRY(key, field) \
      ints_table.settings[SettingGetter::key] = &values.field
    ENTRY(PROXY_HTTP_PORT, http_port);
    ENTRY(PROXY_HTTPS_PORT, secure_port);
    ENTRY(PROXY_FTP_PORT, ftp_port);
    ENTRY(PROXY_SOCKS_PORT, socks_port);
#undef ENTRY
#define ENTRY(key, field) \
      bools_table.settings[SettingGetter::key] = &values.field
    ENTRY(PROXY_USE_HTTP_PROXY, use_proxy);
    ENTRY(PROXY_USE_SAME_PROXY, same_proxy);
    ENTRY(PROXY_USE_AUTHENTICATION, use_auth);
#undef ENTRY
    string_lists_table.settings[SettingGetter::PROXY_IGNORE_HOSTS] =
        &values.ignore_hosts;
    Reset();
  }

  // Zeros all environment values.
  void Reset() {
    GConfValues zero_values = { 0 };
    values = zero_values;
  }

  virtual bool Init(base::SingleThreadTaskRunner* glib_thread_task_runner,
                    base::MessageLoopForIO* file_loop) OVERRIDE {
    return true;
  }

  virtual void ShutDown() OVERRIDE {}

  virtual bool SetUpNotifications(ProxyConfigServiceLinux::Delegate* delegate)
      OVERRIDE {
    return true;
  }

  virtual base::SingleThreadTaskRunner* GetNotificationTaskRunner() OVERRIDE {
    return NULL;
  }

  virtual ProxyConfigSource GetConfigSource() OVERRIDE {
    return PROXY_CONFIG_SOURCE_TEST;
  }

  virtual bool GetString(StringSetting key, std::string* result) OVERRIDE {
    const char* value = strings_table.Get(key);
    if (value) {
      *result = value;
      return true;
    }
    return false;
  }

  virtual bool GetBool(BoolSetting key, bool* result) OVERRIDE {
    BoolSettingValue value = bools_table.Get(key);
    switch (value) {
    case UNSET:
      return false;
    case TRUE:
      *result = true;
      break;
    case FALSE:
      *result = false;
    }
    return true;
  }

  virtual bool GetInt(IntSetting key, int* result) OVERRIDE {
    // We don't bother to distinguish unset keys from 0 values.
    *result = ints_table.Get(key);
    return true;
  }

  virtual bool GetStringList(StringListSetting key,
                             std::vector<std::string>* result) OVERRIDE {
    *result = string_lists_table.Get(key);
    // We don't bother to distinguish unset keys from empty lists.
    return !result->empty();
  }

  virtual bool BypassListIsReversed() OVERRIDE {
    return false;
  }

  virtual bool MatchHostsUsingSuffixMatching() OVERRIDE {
    return false;
  }

  // Intentionally public, for convenience when setting up a test.
  GConfValues values;

 private:
  SettingsTable<StringSetting, const char*> strings_table;
  SettingsTable<BoolSetting, BoolSettingValue> bools_table;
  SettingsTable<IntSetting, int> ints_table;
  SettingsTable<StringListSetting,
                std::vector<std::string> > string_lists_table;
};

}  // namespace
}  // namespace net

// This helper class runs ProxyConfigServiceLinux::GetLatestProxyConfig() on
// the IO thread and synchronously waits for the result.
// Some code duplicated from proxy_script_fetcher_unittest.cc.
class SynchConfigGetter {
 public:
  // Takes ownership of |config_service|.
  explicit SynchConfigGetter(net::ProxyConfigServiceLinux* config_service)
      : event_(false, false),
        io_thread_("IO_Thread"),
        config_service_(config_service) {
    // Start an IO thread.
    base::Thread::Options options;
    options.message_loop_type = base::MessageLoop::TYPE_IO;
    io_thread_.StartWithOptions(options);

    // Make sure the thread started.
    io_thread_.message_loop()->PostTask(FROM_HERE,
        base::Bind(&SynchConfigGetter::Init, base::Unretained(this)));
    Wait();
  }

  ~SynchConfigGetter() {
    // Let the config service post a destroy message to the IO thread
    // before cleaning up that thread.
    delete config_service_;
    // Clean up the IO thread.
    io_thread_.message_loop()->PostTask(FROM_HERE,
        base::Bind(&SynchConfigGetter::CleanUp, base::Unretained(this)));
    Wait();
  }

  // Does gconf setup and initial fetch of the proxy config,
  // all on the calling thread (meant to be the thread with the
  // default glib main loop, which is the UI thread).
  void SetupAndInitialFetch() {
    base::MessageLoop* file_loop = io_thread_.message_loop();
    DCHECK_EQ(base::MessageLoop::TYPE_IO, file_loop->type());
    // We pass the mock IO thread as both the IO and file threads.
    config_service_->SetupAndFetchInitialConfig(
        base::MessageLoopProxy::current().get(),
        io_thread_.message_loop_proxy().get(),
        static_cast<base::MessageLoopForIO*>(file_loop));
  }
  // Synchronously gets the proxy config.
  net::ProxyConfigService::ConfigAvailability SyncGetLatestProxyConfig(
      net::ProxyConfig* config) {
    io_thread_.message_loop()->PostTask(FROM_HERE,
        base::Bind(&SynchConfigGetter::GetLatestConfigOnIOThread,
                   base::Unretained(this)));
    Wait();
    *config = proxy_config_;
    return get_latest_config_result_;
  }

 private:
  // [Runs on |io_thread_|]
  void Init() {
    event_.Signal();
  }

  // Calls GetLatestProxyConfig, running on |io_thread_| Signals |event_|
  // on completion.
  void GetLatestConfigOnIOThread() {
    get_latest_config_result_ =
        config_service_->GetLatestProxyConfig(&proxy_config_);
    event_.Signal();
  }

  // [Runs on |io_thread_|] Signals |event_| on cleanup completion.
  void CleanUp() {
    base::MessageLoop::current()->RunUntilIdle();
    event_.Signal();
  }

  void Wait() {
    event_.Wait();
    event_.Reset();
  }

  base::WaitableEvent event_;
  base::Thread io_thread_;

  net::ProxyConfigServiceLinux* config_service_;

  // The config obtained by |io_thread_| and read back by the main
  // thread.
  net::ProxyConfig proxy_config_;

  // Return value from GetLatestProxyConfig().
  net::ProxyConfigService::ConfigAvailability get_latest_config_result_;
};

namespace net {

// This test fixture is only really needed for the KDEConfigParser test case,
// but all the test cases with the same prefix ("ProxyConfigServiceLinuxTest")
// must use the same test fixture class (also "ProxyConfigServiceLinuxTest").
class ProxyConfigServiceLinuxTest : public PlatformTest {
 protected:
  virtual void SetUp() OVERRIDE {
    PlatformTest::SetUp();
    // Set up a temporary KDE home directory.
    std::string prefix("ProxyConfigServiceLinuxTest_user_home");
    base::CreateNewTempDirectory(prefix, &user_home_);
    kde_home_ = user_home_.Append(FILE_PATH_LITERAL(".kde"));
    base::FilePath path = kde_home_.Append(FILE_PATH_LITERAL("share"));
    path = path.Append(FILE_PATH_LITERAL("config"));
    base::CreateDirectory(path);
    kioslaverc_ = path.Append(FILE_PATH_LITERAL("kioslaverc"));
    // Set up paths but do not create the directory for .kde4.
    kde4_home_ = user_home_.Append(FILE_PATH_LITERAL(".kde4"));
    path = kde4_home_.Append(FILE_PATH_LITERAL("share"));
    kde4_config_ = path.Append(FILE_PATH_LITERAL("config"));
    kioslaverc4_ = kde4_config_.Append(FILE_PATH_LITERAL("kioslaverc"));
  }

  virtual void TearDown() OVERRIDE {
    // Delete the temporary KDE home directory.
    base::DeleteFile(user_home_, true);
    PlatformTest::TearDown();
  }

  base::FilePath user_home_;
  // KDE3 paths.
  base::FilePath kde_home_;
  base::FilePath kioslaverc_;
  // KDE4 paths.
  base::FilePath kde4_home_;
  base::FilePath kde4_config_;
  base::FilePath kioslaverc4_;
};

// Builds an identifier for each test in an array.
#define TEST_DESC(desc) base::StringPrintf("at line %d <%s>", __LINE__, desc)

TEST_F(ProxyConfigServiceLinuxTest, BasicGConfTest) {
  std::vector<std::string> empty_ignores;

  std::vector<std::string> google_ignores;
  google_ignores.push_back("*.google.com");

  // Inspired from proxy_config_service_win_unittest.cc.
  // Very neat, but harder to track down failures though.
  const struct {
    // Short description to identify the test
    std::string description;

    // Input.
    GConfValues values;

    // Expected outputs (availability and fields of ProxyConfig).
    ProxyConfigService::ConfigAvailability availability;
    bool auto_detect;
    GURL pac_url;
    ProxyRulesExpectation proxy_rules;
  } tests[] = {
    {
      TEST_DESC("No proxying"),
      { // Input.
        "none",                   // mode
        "",                       // autoconfig_url
        "", "", "", "",           // hosts
        0, 0, 0, 0,               // ports
        FALSE, FALSE, FALSE,      // use, same, auth
        empty_ignores,            // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                      // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Auto detect"),
      { // Input.
        "auto",                   // mode
        "",                       // autoconfig_url
        "", "", "", "",           // hosts
        0, 0, 0, 0,               // ports
        FALSE, FALSE, FALSE,      // use, same, auth
        empty_ignores,            // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      true,                       // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Valid PAC URL"),
      { // Input.
        "auto",                      // mode
        "http://wpad/wpad.dat",      // autoconfig_url
        "", "", "", "",              // hosts
        0, 0, 0, 0,                  // ports
        FALSE, FALSE, FALSE,         // use, same, auth
        empty_ignores,               // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                         // auto_detect
      GURL("http://wpad/wpad.dat"),  // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Invalid PAC URL"),
      { // Input.
        "auto",                      // mode
        "wpad.dat",                  // autoconfig_url
        "", "", "", "",              // hosts
        0, 0, 0, 0,                  // ports
        FALSE, FALSE, FALSE,         // use, same, auth
        empty_ignores,               // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                          // auto_detect
      GURL(),                        // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Single-host in proxy list"),
      { // Input.
        "manual",                              // mode
        "",                                    // autoconfig_url
        "www.google.com", "", "", "",          // hosts
        80, 0, 0, 0,                           // ports
        TRUE, TRUE, FALSE,                     // use, same, auth
        empty_ignores,                         // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:80",  // single proxy
          ""),                  // bypass rules
    },

    {
      TEST_DESC("use_http_proxy is honored"),
      { // Input.
        "manual",                              // mode
        "",                                    // autoconfig_url
        "www.google.com", "", "", "",          // hosts
        80, 0, 0, 0,                           // ports
        FALSE, TRUE, FALSE,                    // use, same, auth
        empty_ignores,                         // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("use_http_proxy and use_same_proxy are optional"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "www.google.com", "", "", "",                 // hosts
        80, 0, 0, 0,                                  // ports
        UNSET, UNSET, FALSE,                          // use, same, auth
        empty_ignores,                                // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Single-host, different port"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "www.google.com", "", "", "",                 // hosts
        88, 0, 0, 0,                                  // ports
        TRUE, TRUE, FALSE,                            // use, same, auth
        empty_ignores,                                // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:88",  // single proxy
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Per-scheme proxy rules"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "www.google.com",                             // http_host
        "www.foo.com",                                // secure_host
        "ftp.foo.com",                                // ftp
        "",                                           // socks
        88, 110, 121, 0,                              // ports
        TRUE, FALSE, FALSE,                           // use, same, auth
        empty_ignores,                                // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:88",  // http
          "www.foo.com:110",    // https
          "ftp.foo.com:121",    // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("socks"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "", "", "", "socks.com",                      // hosts
        0, 0, 0, 99,                                  // ports
        TRUE, FALSE, FALSE,                           // use, same, auth
        empty_ignores,                                // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::Single(
          "socks5://socks.com:99",  // single proxy
          "")                       // bypass rules
    },

    {
      TEST_DESC("Per-scheme proxy rules with fallback to SOCKS"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "www.google.com",                             // http_host
        "www.foo.com",                                // secure_host
        "ftp.foo.com",                                // ftp
        "foobar.net",                                 // socks
        88, 110, 121, 99,                             // ports
        TRUE, FALSE, FALSE,                           // use, same, auth
        empty_ignores,                                // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::PerSchemeWithSocks(
          "www.google.com:88",      // http
          "www.foo.com:110",        // https
          "ftp.foo.com:121",        // ftp
          "socks5://foobar.net:99", // socks
          ""),                      // bypass rules
    },

    {
      TEST_DESC("Per-scheme proxy rules (just HTTP) with fallback to SOCKS"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "www.google.com",                             // http_host
        "",                                           // secure_host
        "",                                           // ftp
        "foobar.net",                                 // socks
        88, 0, 0, 99,                                 // ports
        TRUE, FALSE, FALSE,                           // use, same, auth
        empty_ignores,                                // ignore_hosts
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::PerSchemeWithSocks(
          "www.google.com:88",      // http
          "",                       // https
          "",                       // ftp
          "socks5://foobar.net:99", // socks
          ""),                      // bypass rules
    },

    {
      TEST_DESC("Bypass *.google.com"),
      { // Input.
        "manual",                                     // mode
        "",                                           // autoconfig_url
        "www.google.com", "", "", "",                 // hosts
        80, 0, 0, 0,                                  // ports
        TRUE, TRUE, FALSE,                            // use, same, auth
        google_ignores,                               // ignore_hosts
      },

      ProxyConfigService::CONFIG_VALID,
      false,                                          // auto_detect
      GURL(),                                         // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:80",   // single proxy
          "*.google.com"),       // bypass rules
    },
  };

  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
    SCOPED_TRACE(base::StringPrintf("Test[%" PRIuS "] %s", i,
                                    tests[i].description.c_str()));
    MockEnvironment* env = new MockEnvironment;
    MockSettingGetter* setting_getter = new MockSettingGetter;
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env, setting_getter));
    ProxyConfig config;
    setting_getter->values = tests[i].values;
    sync_config_getter.SetupAndInitialFetch();
    ProxyConfigService::ConfigAvailability availability =
        sync_config_getter.SyncGetLatestProxyConfig(&config);
    EXPECT_EQ(tests[i].availability, availability);

    if (availability == ProxyConfigService::CONFIG_VALID) {
      EXPECT_EQ(tests[i].auto_detect, config.auto_detect());
      EXPECT_EQ(tests[i].pac_url, config.pac_url());
      EXPECT_TRUE(tests[i].proxy_rules.Matches(config.proxy_rules()));
    }
  }
}

TEST_F(ProxyConfigServiceLinuxTest, BasicEnvTest) {
  // Inspired from proxy_config_service_win_unittest.cc.
  const struct {
    // Short description to identify the test
    std::string description;

    // Input.
    EnvVarValues values;

    // Expected outputs (availability and fields of ProxyConfig).
    ProxyConfigService::ConfigAvailability availability;
    bool auto_detect;
    GURL pac_url;
    ProxyRulesExpectation proxy_rules;
  } tests[] = {
    {
      TEST_DESC("No proxying"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        NULL,  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        "*",  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                      // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Auto detect"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        "",    // auto_proxy
        NULL,  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      true,                       // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Valid PAC URL"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        "http://wpad/wpad.dat",  // auto_proxy
        NULL,  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                         // auto_detect
      GURL("http://wpad/wpad.dat"),  // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Invalid PAC URL"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        "wpad.dat",  // auto_proxy
        NULL,  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                       // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Single-host in proxy list"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "www.google.com",  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:80",  // single proxy
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Single-host, different port"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "www.google.com:99",  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:99",  // single
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Tolerate a scheme"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "http://www.google.com:99",  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:99",  // single proxy
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Per-scheme proxy rules"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        NULL,  // all_proxy
        "www.google.com:80", "www.foo.com:110", "ftp.foo.com:121",  // per-proto
        NULL, NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "www.foo.com:110",    // https
          "ftp.foo.com:121",    // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("socks"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "",  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        "socks.com:888", NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "socks5://socks.com:888",  // single proxy
          ""),                       // bypass rules
    },

    {
      TEST_DESC("socks4"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "",  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        "socks.com:888", "4",  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "socks4://socks.com:888",  // single proxy
          ""),                       // bypass rules
    },

    {
      TEST_DESC("socks default port"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "",  // all_proxy
        NULL, NULL, NULL,  // per-proto proxies
        "socks.com", NULL,  // SOCKS
        NULL,  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "socks5://socks.com:1080",  // single proxy
          ""),                        // bypass rules
    },

    {
      TEST_DESC("bypass"),
      { // Input.
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        "www.google.com",  // all_proxy
        NULL, NULL, NULL,  // per-proto
        NULL, NULL,  // SOCKS
        ".google.com, foo.com:99, 1.2.3.4:22, 127.0.0.1/8",  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                      // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Single(
          "www.google.com:80",
          "*.google.com,*foo.com:99,1.2.3.4:22,127.0.0.1/8"),
    },
  };

  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
    SCOPED_TRACE(base::StringPrintf("Test[%" PRIuS "] %s", i,
                                    tests[i].description.c_str()));
    MockEnvironment* env = new MockEnvironment;
    MockSettingGetter* setting_getter = new MockSettingGetter;
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env, setting_getter));
    ProxyConfig config;
    env->values = tests[i].values;
    sync_config_getter.SetupAndInitialFetch();
    ProxyConfigService::ConfigAvailability availability =
        sync_config_getter.SyncGetLatestProxyConfig(&config);
    EXPECT_EQ(tests[i].availability, availability);

    if (availability == ProxyConfigService::CONFIG_VALID) {
      EXPECT_EQ(tests[i].auto_detect, config.auto_detect());
      EXPECT_EQ(tests[i].pac_url, config.pac_url());
      EXPECT_TRUE(tests[i].proxy_rules.Matches(config.proxy_rules()));
    }
  }
}

TEST_F(ProxyConfigServiceLinuxTest, GconfNotification) {
  MockEnvironment* env = new MockEnvironment;
  MockSettingGetter* setting_getter = new MockSettingGetter;
  ProxyConfigServiceLinux* service =
      new ProxyConfigServiceLinux(env, setting_getter);
  SynchConfigGetter sync_config_getter(service);
  ProxyConfig config;

  // Start with no proxy.
  setting_getter->values.mode = "none";
  sync_config_getter.SetupAndInitialFetch();
  EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
            sync_config_getter.SyncGetLatestProxyConfig(&config));
  EXPECT_FALSE(config.auto_detect());

  // Now set to auto-detect.
  setting_getter->values.mode = "auto";
  // Simulate setting change notification callback.
  service->OnCheckProxyConfigSettings();
  EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
            sync_config_getter.SyncGetLatestProxyConfig(&config));
  EXPECT_TRUE(config.auto_detect());
}

TEST_F(ProxyConfigServiceLinuxTest, KDEConfigParser) {
  // One of the tests below needs a worst-case long line prefix. We build it
  // programmatically so that it will always be the right size.
  std::string long_line;
  size_t limit = ProxyConfigServiceLinux::SettingGetter::BUFFER_SIZE - 1;
  for (size_t i = 0; i < limit; ++i)
    long_line += "-";

  // Inspired from proxy_config_service_win_unittest.cc.
  const struct {
    // Short description to identify the test
    std::string description;

    // Input.
    std::string kioslaverc;
    EnvVarValues env_values;

    // Expected outputs (availability and fields of ProxyConfig).
    ProxyConfigService::ConfigAvailability availability;
    bool auto_detect;
    GURL pac_url;
    ProxyRulesExpectation proxy_rules;
  } tests[] = {
    {
      TEST_DESC("No proxying"),

      // Input.
      "[Proxy Settings]\nProxyType=0\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                      // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Auto detect"),

      // Input.
      "[Proxy Settings]\nProxyType=3\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      true,                       // auto_detect
      GURL(),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Valid PAC URL"),

      // Input.
      "[Proxy Settings]\nProxyType=2\n"
          "Proxy Config Script=http://wpad/wpad.dat\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                         // auto_detect
      GURL("http://wpad/wpad.dat"),  // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Valid PAC file without file://"),

      // Input.
      "[Proxy Settings]\nProxyType=2\n"
          "Proxy Config Script=/wpad/wpad.dat\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                         // auto_detect
      GURL("file:///wpad/wpad.dat"),  // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Per-scheme proxy rules"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "httpsProxy=www.foo.com\nftpProxy=ftp.foo.com\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "www.foo.com:80",     // https
          "ftp.foo.com:80",     // http
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Only HTTP proxy specified"),

      // Input.
      "[Proxy Settings]\nProxyType=1\n"
          "httpProxy=www.google.com\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Only HTTP proxy specified, different port"),

      // Input.
      "[Proxy Settings]\nProxyType=1\n"
          "httpProxy=www.google.com:88\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:88",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Only HTTP proxy specified, different port, space-delimited"),

      // Input.
      "[Proxy Settings]\nProxyType=1\n"
          "httpProxy=www.google.com 88\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:88",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Bypass *.google.com"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "NoProxyFor=.google.com\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          "*.google.com"),      // bypass rules
    },

    {
      TEST_DESC("Bypass *.google.com and *.kde.org"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "NoProxyFor=.google.com,.kde.org\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",           // http
          "",                            // https
          "",                            // ftp
          "*.google.com,*.kde.org"),     // bypass rules
    },

    {
      TEST_DESC("Correctly parse bypass list with ReversedException"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "NoProxyFor=.google.com\nReversedException=true\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerSchemeWithBypassReversed(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          "*.google.com"),      // bypass rules
    },

    {
      TEST_DESC("socks"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nsocksProxy=socks.com 888\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "socks5://socks.com:888",  // single proxy
          ""),                       // bypass rules
    },

    {
      TEST_DESC("socks4"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nsocksProxy=socks4://socks.com 888\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Single(
          "socks4://socks.com:888",  // single proxy
          ""),                       // bypass rules
    },

    {
      TEST_DESC("Treat all hostname patterns as wildcard patterns"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "NoProxyFor=google.com,kde.org,<local>\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",              // http
          "",                               // https
          "",                               // ftp
          "*google.com,*kde.org,<local>"),  // bypass rules
    },

    {
      TEST_DESC("Allow trailing whitespace after boolean value"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "NoProxyFor=.google.com\nReversedException=true  \n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerSchemeWithBypassReversed(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          "*.google.com"),      // bypass rules
    },

    {
      TEST_DESC("Ignore settings outside [Proxy Settings]"),

      // Input.
      "httpsProxy=www.foo.com\n[Proxy Settings]\nProxyType=1\n"
          "httpProxy=www.google.com\n[Other Section]\nftpProxy=ftp.foo.com\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Handle CRLF line endings"),

      // Input.
      "[Proxy Settings]\r\nProxyType=1\r\nhttpProxy=www.google.com\r\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Handle blank lines and mixed line endings"),

      // Input.
      "[Proxy Settings]\r\n\nProxyType=1\n\r\nhttpProxy=www.google.com\n\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Handle localized settings"),

      // Input.
      "[Proxy Settings]\nProxyType[$e]=1\nhttpProxy[$e]=www.google.com\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "",                   // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Ignore malformed localized settings"),

      // Input.
      "[Proxy Settings]\nProxyType=1\nhttpProxy=www.google.com\n"
          "httpsProxy$e]=www.foo.com\nftpProxy=ftp.foo.com\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "ftp.foo.com:80",     // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Handle strange whitespace"),

      // Input.
      "[Proxy Settings]\nProxyType [$e] =2\n"
          "  Proxy Config Script =  http:// foo\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL("http:// foo"),                     // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Ignore all of a line which is too long"),

      // Input.
      std::string("[Proxy Settings]\nProxyType=1\nftpProxy=ftp.foo.com\n") +
          long_line + "httpsProxy=www.foo.com\nhttpProxy=www.google.com\n",
      {},                                          // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                       // auto_detect
      GURL(),                                      // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.google.com:80",  // http
          "",                   // https
          "ftp.foo.com:80",     // ftp
          ""),                  // bypass rules
    },

    {
      TEST_DESC("Indirect Proxy - no env vars set"),

      // Input.
      "[Proxy Settings]\nProxyType=4\nhttpProxy=http_proxy\n"
          "httpsProxy=https_proxy\nftpProxy=ftp_proxy\nNoProxyFor=no_proxy\n",
      {},                                      // env_values

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::Empty(),
    },

    {
      TEST_DESC("Indirect Proxy - with env vars set"),

      // Input.
      "[Proxy Settings]\nProxyType=4\nhttpProxy=http_proxy\n"
          "httpsProxy=https_proxy\nftpProxy=ftp_proxy\nNoProxyFor=no_proxy\n",
      {  // env_values
        NULL,  // DESKTOP_SESSION
        NULL,  // HOME
        NULL,  // KDEHOME
        NULL,  // KDE_SESSION_VERSION
        NULL,  // auto_proxy
        NULL,  // all_proxy
        "www.normal.com",  // http_proxy
        "www.secure.com",  // https_proxy
        "ftp.foo.com",  // ftp_proxy
        NULL, NULL,  // SOCKS
        ".google.com, .kde.org",  // no_proxy
      },

      // Expected result.
      ProxyConfigService::CONFIG_VALID,
      false,                                   // auto_detect
      GURL(),                                  // pac_url
      ProxyRulesExpectation::PerScheme(
          "www.normal.com:80",           // http
          "www.secure.com:80",           // https
          "ftp.foo.com:80",              // ftp
          "*.google.com,*.kde.org"),     // bypass rules
    },

  };

  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
    SCOPED_TRACE(base::StringPrintf("Test[%" PRIuS "] %s", i,
                                    tests[i].description.c_str()));
    MockEnvironment* env = new MockEnvironment;
    env->values = tests[i].env_values;
    // Force the KDE getter to be used and tell it where the test is.
    env->values.DESKTOP_SESSION = "kde4";
    env->values.KDEHOME = kde_home_.value().c_str();
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env));
    ProxyConfig config;
    // Overwrite the kioslaverc file.
    base::WriteFile(kioslaverc_, tests[i].kioslaverc.c_str(),
                    tests[i].kioslaverc.length());
    sync_config_getter.SetupAndInitialFetch();
    ProxyConfigService::ConfigAvailability availability =
        sync_config_getter.SyncGetLatestProxyConfig(&config);
    EXPECT_EQ(tests[i].availability, availability);

    if (availability == ProxyConfigService::CONFIG_VALID) {
      EXPECT_EQ(tests[i].auto_detect, config.auto_detect());
      EXPECT_EQ(tests[i].pac_url, config.pac_url());
      EXPECT_TRUE(tests[i].proxy_rules.Matches(config.proxy_rules()));
    }
  }
}

TEST_F(ProxyConfigServiceLinuxTest, KDEHomePicker) {
  // Auto detect proxy settings.
  std::string slaverc3 = "[Proxy Settings]\nProxyType=3\n";
  // Valid PAC URL.
  std::string slaverc4 = "[Proxy Settings]\nProxyType=2\n"
                             "Proxy Config Script=http://wpad/wpad.dat\n";
  GURL slaverc4_pac_url("http://wpad/wpad.dat");

  // Overwrite the .kde kioslaverc file.
  base::WriteFile(kioslaverc_, slaverc3.c_str(), slaverc3.length());

  // If .kde4 exists it will mess up the first test. It should not, as
  // we created the directory for $HOME in the test setup.
  CHECK(!base::DirectoryExists(kde4_home_));

  { SCOPED_TRACE("KDE4, no .kde4 directory, verify fallback");
    MockEnvironment* env = new MockEnvironment;
    env->values.DESKTOP_SESSION = "kde4";
    env->values.HOME = user_home_.value().c_str();
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env));
    ProxyConfig config;
    sync_config_getter.SetupAndInitialFetch();
    EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
              sync_config_getter.SyncGetLatestProxyConfig(&config));
    EXPECT_TRUE(config.auto_detect());
    EXPECT_EQ(GURL(), config.pac_url());
  }

  // Now create .kde4 and put a kioslaverc in the config directory.
  // Note that its timestamp will be at least as new as the .kde one.
  base::CreateDirectory(kde4_config_);
  base::WriteFile(kioslaverc4_, slaverc4.c_str(), slaverc4.length());
  CHECK(base::PathExists(kioslaverc4_));

  { SCOPED_TRACE("KDE4, .kde4 directory present, use it");
    MockEnvironment* env = new MockEnvironment;
    env->values.DESKTOP_SESSION = "kde4";
    env->values.HOME = user_home_.value().c_str();
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env));
    ProxyConfig config;
    sync_config_getter.SetupAndInitialFetch();
    EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
              sync_config_getter.SyncGetLatestProxyConfig(&config));
    EXPECT_FALSE(config.auto_detect());
    EXPECT_EQ(slaverc4_pac_url, config.pac_url());
  }

  { SCOPED_TRACE("KDE3, .kde4 directory present, ignore it");
    MockEnvironment* env = new MockEnvironment;
    env->values.DESKTOP_SESSION = "kde";
    env->values.HOME = user_home_.value().c_str();
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env));
    ProxyConfig config;
    sync_config_getter.SetupAndInitialFetch();
    EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
              sync_config_getter.SyncGetLatestProxyConfig(&config));
    EXPECT_TRUE(config.auto_detect());
    EXPECT_EQ(GURL(), config.pac_url());
  }

  { SCOPED_TRACE("KDE4, .kde4 directory present, KDEHOME set to .kde");
    MockEnvironment* env = new MockEnvironment;
    env->values.DESKTOP_SESSION = "kde4";
    env->values.HOME = user_home_.value().c_str();
    env->values.KDEHOME = kde_home_.value().c_str();
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env));
    ProxyConfig config;
    sync_config_getter.SetupAndInitialFetch();
    EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
              sync_config_getter.SyncGetLatestProxyConfig(&config));
    EXPECT_TRUE(config.auto_detect());
    EXPECT_EQ(GURL(), config.pac_url());
  }

  // Finally, make the .kde4 config directory older than the .kde directory
  // and make sure we then use .kde instead of .kde4 since it's newer.
  base::TouchFile(kde4_config_, base::Time(), base::Time());

  { SCOPED_TRACE("KDE4, very old .kde4 directory present, use .kde");
    MockEnvironment* env = new MockEnvironment;
    env->values.DESKTOP_SESSION = "kde4";
    env->values.HOME = user_home_.value().c_str();
    SynchConfigGetter sync_config_getter(
        new ProxyConfigServiceLinux(env));
    ProxyConfig config;
    sync_config_getter.SetupAndInitialFetch();
    EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
              sync_config_getter.SyncGetLatestProxyConfig(&config));
    EXPECT_TRUE(config.auto_detect());
    EXPECT_EQ(GURL(), config.pac_url());
  }
}

}  // namespace net