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      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 // This file provides reliablity test which runs under UI test framework. The
      6 // test is intended to run within QEMU environment.
      7 //
      8 // Usage 1: reliability_test
      9 // Upon invocation, it visits a hard coded list of sample URLs. This is mainly
     10 // used by buildbot, to verify reliability_test itself runs ok.
     11 //
     12 // Usage 2: reliability_test --site=url --startpage=start --endpage=end [...]
     13 // Upon invocation, it visits a list of URLs constructed as
     14 // "http://url/page?id=k". (start <= k <= end).
     15 //
     16 // Usage 3: reliability_test --list=file --startline=start --endline=end [...]
     17 // Upon invocation, it visits each of the URLs on line numbers between start
     18 // and end, inclusive, stored in the input file. The line number starts from 1.
     19 //
     20 // If both "--site" and "--list" are provided, the "--site" set of arguments
     21 // are ignored.
     22 //
     23 // Optional Switches:
     24 // --iterations=num: goes through the list of URLs constructed in usage 2 or 3
     25 //                   num times.
     26 // --continuousload: continuously visits the list of URLs without restarting
     27 //                    browser for each page load.
     28 // --memoryusage: prints out memory usage when visiting each page.
     29 // --endurl=url: visits the specified url in the end.
     30 // --logfile=filepath: saves the visit log to the specified path.
     31 // --noclearprofile: do not clear profile dir before firing up each time.
     32 // --savedebuglog: save Chrome, V8, and test debug log for each page loaded.
     33 // --searchdumpsbypid: Look for crash dumps by browser process id.
     34 //                     "crash_dir/pid/"
     35 
     36 #include <fstream>
     37 #include <vector>
     38 
     39 #include "base/command_line.h"
     40 #include "base/environment.h"
     41 #include "base/file_util.h"
     42 #include "base/file_version_info.h"
     43 #include "base/files/file_enumerator.h"
     44 #include "base/files/file_path.h"
     45 #include "base/i18n/time_formatting.h"
     46 #include "base/memory/scoped_ptr.h"
     47 #include "base/path_service.h"
     48 #include "base/prefs/json_pref_store.h"
     49 #include "base/prefs/pref_registry_simple.h"
     50 #include "base/prefs/pref_service.h"
     51 #include "base/process/kill.h"
     52 #include "base/strings/string_number_conversions.h"
     53 #include "base/strings/string_util.h"
     54 #include "base/test/test_file_util.h"
     55 #include "base/threading/platform_thread.h"
     56 #include "base/time/time.h"
     57 #include "chrome/browser/prefs/pref_service_mock_builder.h"
     58 #include "chrome/common/automation_messages.h"
     59 #include "chrome/common/chrome_constants.h"
     60 #include "chrome/common/chrome_paths.h"
     61 #include "chrome/common/chrome_switches.h"
     62 #include "chrome/common/chrome_version_info.h"
     63 #include "chrome/common/logging_chrome.h"
     64 #include "chrome/common/net/url_fixer_upper.h"
     65 #include "chrome/common/pref_names.h"
     66 #include "chrome/common/render_messages.h"
     67 #include "chrome/common/url_constants.h"
     68 #include "chrome/test/automation/automation_proxy.h"
     69 #include "chrome/test/automation/browser_proxy.h"
     70 #include "chrome/test/automation/tab_proxy.h"
     71 #include "chrome/test/automation/window_proxy.h"
     72 #include "chrome/test/ui/ui_test.h"
     73 #include "net/base/net_util.h"
     74 #include "v8/include/v8-testing.h"
     75 
     76 namespace {
     77 
     78 // See comments at the beginning of the file for the definition of switches.
     79 const char kSiteSwitch[] = "site";
     80 const char kStartPageSwitch[] = "startpage";
     81 const char kEndPageSwitch[] = "endpage";
     82 const char kListSwitch[] = "list";
     83 const char kStartIndexSwitch[] = "startline";
     84 const char kEndIndexSwitch[] = "endline";
     85 const char kIterationSwitch[] = "iterations";
     86 const char kContinuousLoadSwitch[] = "continuousload";
     87 const char kMemoryUsageSwitch[] = "memoryusage";
     88 const char kEndURLSwitch[] = "endurl";
     89 const char kLogFileSwitch[] = "logfile";
     90 const char kNoPageDownSwitch[] = "nopagedown";
     91 const char kNoClearProfileSwitch[] = "noclearprofile";
     92 const char kSaveDebugLogSwitch[] = "savedebuglog";
     93 const char kStressOptSwitch[] = "stress-opt";
     94 const char kStressDeoptSwitch[] = "stress-deopt";
     95 
     96 const char kDefaultServerUrl[] = "http://urllist.com";
     97 std::string g_server_url;
     98 const char kTestPage1[] = "page1.html";
     99 const char kTestPage2[] = "page2.html";
    100 
    101 // These are copied from v8 definitions as we cannot include them.
    102 const char kV8LogFileSwitch[] = "logfile";
    103 const char kV8LogFileDefaultName[] = "v8.log";
    104 
    105 // String name of local chrome dll for looking up file information.
    106 const wchar_t kChromeDll[] = L"chrome.dll";
    107 
    108 bool g_append_page_id = false;
    109 int32 g_start_page;
    110 int32 g_end_page;
    111 base::FilePath g_url_file_path;
    112 int32 g_start_index = 1;
    113 int32 g_end_index = kint32max;
    114 int32 g_iterations = 1;
    115 bool g_memory_usage = false;
    116 bool g_continuous_load = false;
    117 bool g_browser_existing = false;
    118 bool g_clear_profile = true;
    119 std::string g_end_url;
    120 base::FilePath g_log_file_path;
    121 bool g_save_debug_log = false;
    122 base::FilePath g_chrome_log_path;
    123 base::FilePath g_v8_log_path;
    124 base::FilePath g_test_log_path;
    125 bool g_stand_alone = false;
    126 bool g_stress_opt = false;
    127 bool g_stress_deopt = false;
    128 
    129 void ReportHandler(const std::string& str) {
    130   // Ignore report events.
    131 }
    132 
    133 void SetPageRange(const CommandLine& parsed_command_line) {
    134   // If calling into this function, we are running as a standalone program.
    135   g_stand_alone = true;
    136 
    137   // Since we use --enable-dcheck for reliability tests, suppress the error
    138   // dialog in the test process.
    139   logging::SetLogReportHandler(ReportHandler);
    140 
    141   if (parsed_command_line.HasSwitch(kStartPageSwitch)) {
    142     ASSERT_TRUE(parsed_command_line.HasSwitch(kEndPageSwitch));
    143     ASSERT_TRUE(
    144         base::StringToInt(parsed_command_line.GetSwitchValueASCII(
    145                               kStartPageSwitch),
    146                           &g_start_page));
    147     ASSERT_TRUE(
    148         base::StringToInt(parsed_command_line.GetSwitchValueASCII(
    149                               kEndPageSwitch),
    150                           &g_end_page));
    151     ASSERT_TRUE(g_start_page > 0 && g_end_page > 0);
    152     ASSERT_TRUE(g_start_page < g_end_page);
    153     g_append_page_id = true;
    154   } else {
    155     ASSERT_FALSE(parsed_command_line.HasSwitch(kEndPageSwitch));
    156   }
    157 
    158   if (parsed_command_line.HasSwitch(kSiteSwitch)) {
    159     g_server_url = parsed_command_line.GetSwitchValueASCII(kSiteSwitch);
    160   }
    161 
    162   if (parsed_command_line.HasSwitch(kStartIndexSwitch)) {
    163     ASSERT_TRUE(
    164         base::StringToInt(parsed_command_line.GetSwitchValueASCII(
    165                               kStartIndexSwitch),
    166                           &g_start_index));
    167     ASSERT_GT(g_start_index, 0);
    168   }
    169 
    170   if (parsed_command_line.HasSwitch(kEndIndexSwitch)) {
    171     ASSERT_TRUE(
    172         base::StringToInt(parsed_command_line.GetSwitchValueASCII(
    173                               kEndIndexSwitch),
    174                           &g_end_index));
    175     ASSERT_GT(g_end_index, 0);
    176   }
    177 
    178   ASSERT_TRUE(g_end_index >= g_start_index);
    179 
    180   if (parsed_command_line.HasSwitch(kListSwitch))
    181     g_url_file_path = parsed_command_line.GetSwitchValuePath(kListSwitch);
    182 
    183   if (parsed_command_line.HasSwitch(kIterationSwitch)) {
    184     ASSERT_TRUE(
    185         base::StringToInt(parsed_command_line.GetSwitchValueASCII(
    186                               kIterationSwitch),
    187                           &g_iterations));
    188     ASSERT_GT(g_iterations, 0);
    189   }
    190 
    191   if (parsed_command_line.HasSwitch(kMemoryUsageSwitch))
    192     g_memory_usage = true;
    193 
    194   if (parsed_command_line.HasSwitch(kContinuousLoadSwitch))
    195     g_continuous_load = true;
    196 
    197   if (parsed_command_line.HasSwitch(kEndURLSwitch))
    198     g_end_url = parsed_command_line.GetSwitchValueASCII(kEndURLSwitch);
    199 
    200   if (parsed_command_line.HasSwitch(kLogFileSwitch))
    201     g_log_file_path = parsed_command_line.GetSwitchValuePath(kLogFileSwitch);
    202 
    203   if (parsed_command_line.HasSwitch(kNoClearProfileSwitch))
    204     g_clear_profile = false;
    205 
    206   if (parsed_command_line.HasSwitch(kSaveDebugLogSwitch)) {
    207     g_save_debug_log = true;
    208     g_chrome_log_path = logging::GetLogFileName();
    209     // We won't get v8 log unless --no-sandbox is specified.
    210     if (parsed_command_line.HasSwitch(switches::kNoSandbox)) {
    211       PathService::Get(base::DIR_CURRENT, &g_v8_log_path);
    212       g_v8_log_path = g_v8_log_path.AppendASCII(kV8LogFileDefaultName);
    213       // The command line switch may override the default v8 log path.
    214       if (parsed_command_line.HasSwitch(switches::kJavaScriptFlags)) {
    215         CommandLine v8_command_line(
    216             parsed_command_line.GetSwitchValuePath(switches::kJavaScriptFlags));
    217         if (v8_command_line.HasSwitch(kV8LogFileSwitch)) {
    218           g_v8_log_path = base::MakeAbsoluteFilePath(
    219               v8_command_line.GetSwitchValuePath(kV8LogFileSwitch));
    220         }
    221       }
    222     }
    223   }
    224 
    225   if (parsed_command_line.HasSwitch(kStressOptSwitch)) {
    226     g_stress_opt = true;
    227   }
    228   if (parsed_command_line.HasSwitch(kStressDeoptSwitch)) {
    229     g_stress_deopt = true;
    230   }
    231 }
    232 
    233 class PageLoadTest : public UITest {
    234  public:
    235   enum NavigationResult {
    236     NAVIGATION_ERROR = 0,
    237     NAVIGATION_SUCCESS,
    238     NAVIGATION_AUTH_NEEDED,
    239     NAVIGATION_TIME_OUT,
    240   };
    241 
    242   typedef struct {
    243     // These are results from the test automation that drives Chrome
    244     NavigationResult result;
    245     int crash_dump_count;
    246     // These are stability metrics recorded by Chrome itself
    247     bool browser_clean_exit;
    248     int browser_launch_count;
    249     int page_load_count;
    250     int browser_crash_count;
    251     int renderer_crash_count;
    252     int plugin_crash_count;
    253   } NavigationMetrics;
    254 
    255   PageLoadTest() {
    256     show_window_ = true;
    257     SetPageRange(*CommandLine::ForCurrentProcess());
    258   }
    259 
    260   void EnsureBrowserAndServer() {
    261     if (!g_browser_existing) {
    262       LaunchBrowserAndServer();
    263       g_browser_existing = true;
    264     }
    265   }
    266 
    267   // Load a URL in a browser tab and perform a couple of page down events.
    268   //   url_string:      The URL to navigate to. Accept URL as std::string here
    269   //                    because the url may also act as a test id and needs to
    270   //                    be logged in its original format even if invalid.
    271   //   log_file:        Log file for test results and possible crash dump
    272   //                    files. This file does not need to be opened in which
    273   //                    case nothing is logged.
    274   //   metrics_output:  Return metrics for the page load.
    275   //   keep_browser:    Set to true if the browser should be kept open after
    276   //                    loading the page.
    277   //   log_only_errors: Set to true if only errors should be logged otherwise
    278   //                    successful navigations will also be logged.
    279   bool NavigateToURLLogResult(const std::string& url_string,
    280                               std::ofstream& log_file,
    281                               NavigationMetrics* metrics_output,
    282                               bool keep_browser,
    283                               bool log_only_error) {
    284     GURL url(url_string);
    285     NavigationMetrics metrics = {NAVIGATION_ERROR};
    286     std::ofstream test_log;
    287 
    288     // Create a test log.
    289     g_test_log_path = base::FilePath(FILE_PATH_LITERAL("test_log.log"));
    290     test_log.open(g_test_log_path.value().c_str());
    291 
    292     // Get the version of Chrome we're running.
    293     std::string last_change;
    294 #if defined(OS_WIN)
    295     // Check file version info for chrome dll.
    296     scoped_ptr<FileVersionInfo> file_info;
    297     file_info.reset(
    298         FileVersionInfo::CreateFileVersionInfo(base::FilePath(kChromeDll)));
    299     last_change = WideToASCII(file_info->last_change());
    300 #elif defined(OS_POSIX)
    301     // TODO(fmeawad): On Mac, the version retrieved here belongs to the test
    302     // module and not the chrome binary, need to be changed to chrome binary
    303     // instead.
    304     chrome::VersionInfo version_info;
    305     last_change = version_info.LastChange();
    306 #endif  // !defined(OS_WIN)
    307     test_log << "Last Change: ";
    308     test_log << last_change << std::endl;
    309 
    310     // Log timestamp for test start.
    311     base::Time time_now = base::Time::Now();
    312     double time_start = time_now.ToDoubleT();
    313     test_log << "Test Start: ";
    314     test_log << base::TimeFormatFriendlyDateAndTime(time_now) << std::endl;
    315 
    316     // Make sure the browser is running.
    317     EnsureBrowserAndServer();
    318 
    319     // Log Browser Launched time.
    320     time_now = base::Time::Now();
    321     test_log << "browser_launched_seconds=";
    322     test_log << (time_now.ToDoubleT() - time_start) << std::endl;
    323 
    324     int result = AUTOMATION_MSG_NAVIGATION_ERROR;
    325     // This is essentially what NavigateToURL does except we don't fire
    326     // assertion when page loading fails. We log the result instead.
    327     {
    328       // TabProxy should be released before Browser is closed.
    329       scoped_refptr<TabProxy> tab_proxy(GetActiveTab());
    330       if (tab_proxy.get())
    331         result = tab_proxy->NavigateToURL(url);
    332     }
    333 
    334     // Log navigate complete time.
    335     time_now = base::Time::Now();
    336     test_log << "navigate_complete_seconds=";
    337     test_log << (time_now.ToDoubleT() - time_start) << std::endl;
    338 
    339     if (!keep_browser) {
    340       CloseBrowserAndServer();
    341       g_browser_existing = false;
    342     }
    343 
    344     // Log end of test time.
    345     time_now = base::Time::Now();
    346     test_log << "total_duration_seconds=";
    347     test_log << (time_now.ToDoubleT() - time_start) << std::endl;
    348 
    349     // Get navigation result and metrics, and optionally write to the log file
    350     // provided.  The log format is:
    351     // <url> <navigation_result> <browser_crash_count> <renderer_crash_count>
    352     // <plugin_crash_count> <crash_dump_count> [chrome_log=<path>
    353     // v8_log=<path>] crash_dump=<path>
    354     switch (result) {
    355       case AUTOMATION_MSG_NAVIGATION_ERROR:
    356         metrics.result = NAVIGATION_ERROR;
    357         break;
    358       case AUTOMATION_MSG_NAVIGATION_SUCCESS:
    359         metrics.result = NAVIGATION_SUCCESS;
    360         break;
    361       case AUTOMATION_MSG_NAVIGATION_AUTH_NEEDED:
    362         metrics.result = NAVIGATION_AUTH_NEEDED;
    363         break;
    364       default:
    365         metrics.result = NAVIGATION_ERROR;
    366         break;
    367     }
    368 
    369     // Get crash dumps - don't delete them if logging.
    370     std::vector<base::FilePath> new_crash_dumps;
    371     CollectNewCrashDumps(new_crash_dumps, &metrics, !log_file.is_open());
    372 
    373     bool do_log = log_file.is_open() &&
    374                   (!log_only_error ||
    375                    metrics.result != NAVIGATION_SUCCESS ||
    376                    !new_crash_dumps.empty());
    377     if (do_log) {
    378       log_file << url_string;
    379       switch (metrics.result) {
    380         case NAVIGATION_ERROR:
    381           log_file << " error";
    382           break;
    383         case NAVIGATION_SUCCESS:
    384           log_file << " success";
    385           break;
    386         case NAVIGATION_AUTH_NEEDED:
    387           log_file << " auth_needed";
    388           break;
    389         case NAVIGATION_TIME_OUT:
    390           log_file << " timeout";
    391           break;
    392         default:
    393           break;
    394       }
    395     }
    396 
    397 #if !defined(OS_MACOSX)  // Not used by mac chromebot.
    398     // Get stability metrics recorded by Chrome itself.
    399     GetStabilityMetrics(&metrics);
    400 #endif
    401 
    402     if (do_log) {
    403       log_file << " " << metrics.browser_crash_count \
    404                // The renderer crash count is flaky due to 1183283.
    405                // Ignore the count since we also catch crash by
    406                // crash_dump_count.
    407                << " " << 0 \
    408                << " " << metrics.plugin_crash_count \
    409                << " " << metrics.crash_dump_count;
    410     }
    411 
    412     // Close test log.
    413     test_log.close();
    414 
    415     if (do_log && g_save_debug_log && !g_continuous_load)
    416       SaveDebugLogs(log_file);
    417 
    418     // Log revision information for Chrome build under test.
    419     if (do_log)
    420       log_file << " " << "revision=" << last_change;
    421 
    422     if (do_log) {
    423       for (size_t i = 0; i < new_crash_dumps.size(); i++)
    424         log_file << " crash_dump=" << new_crash_dumps[i].value().c_str();
    425     }
    426 
    427     if (do_log)
    428       log_file << std::endl;
    429 
    430     if (metrics_output)
    431       *metrics_output = metrics;
    432 
    433     return do_log;
    434   }
    435 
    436   void NavigateThroughPageID(std::ofstream& log_file) {
    437     if (g_append_page_id) {
    438       // For usage 2
    439       for (int i = g_start_page; i <= g_end_page; ++i) {
    440         const char* server = g_server_url.empty() ? kDefaultServerUrl :
    441             g_server_url.c_str();
    442         std::string test_page_url(
    443             base::StringPrintf("%s/page?id=%d", server, i));
    444         NavigateToURLLogResult(
    445             test_page_url, log_file, NULL, g_continuous_load, false);
    446       }
    447     } else {
    448       // Don't run if running as a standalone program which is for distributed
    449       // testing, to avoid mistakenly hitting web sites with many instances.
    450       if (g_stand_alone)
    451         return;
    452       // For usage 1
    453       NavigationMetrics metrics;
    454 
    455       base::FilePath sample_data_dir = GetSampleDataDir();
    456       base::FilePath test_page_1 = sample_data_dir.AppendASCII(kTestPage1);
    457       base::FilePath test_page_2 = sample_data_dir.AppendASCII(kTestPage2);
    458 
    459       GURL test_url_1 = net::FilePathToFileURL(test_page_1);
    460       GURL test_url_2 = net::FilePathToFileURL(test_page_2);
    461 
    462       // Convert back to string so that all calls to navigate are the same.
    463       const std::string test_url_1_string = test_url_1.spec();
    464       const std::string test_url_2_string = test_url_2.spec();
    465 
    466       NavigateToURLLogResult(
    467           test_url_1_string, log_file, &metrics, g_continuous_load, false);
    468       // Verify everything is fine
    469       EXPECT_EQ(NAVIGATION_SUCCESS, metrics.result);
    470       EXPECT_EQ(0, metrics.crash_dump_count);
    471       EXPECT_TRUE(metrics.browser_clean_exit);
    472       EXPECT_EQ(1, metrics.browser_launch_count);
    473       // Both starting page and test_url_1 are loaded.
    474       EXPECT_EQ(2, metrics.page_load_count);
    475       EXPECT_EQ(0, metrics.browser_crash_count);
    476       EXPECT_EQ(0, metrics.renderer_crash_count);
    477       EXPECT_EQ(0, metrics.plugin_crash_count);
    478 
    479       // Go to "about:crash"
    480       NavigateToURLLogResult(content::kChromeUICrashURL,
    481                              log_file,
    482                              &metrics,
    483                              g_continuous_load,
    484                              false);
    485       // Found a crash dump
    486       EXPECT_EQ(1, metrics.crash_dump_count) << kFailedNoCrashService;
    487       // Browser did not crash, and exited cleanly.
    488       EXPECT_TRUE(metrics.browser_clean_exit);
    489       EXPECT_EQ(1, metrics.browser_launch_count);
    490       // Only the renderer should have crashed.
    491       EXPECT_EQ(0, metrics.browser_crash_count);
    492       EXPECT_EQ(1, metrics.renderer_crash_count);
    493       EXPECT_EQ(0, metrics.plugin_crash_count);
    494 
    495       NavigateToURLLogResult(
    496           test_url_2_string, log_file, &metrics, g_continuous_load, false);
    497       // The data on previous crash should be cleared and we should get
    498       // metrics for a successful page load.
    499       EXPECT_EQ(NAVIGATION_SUCCESS, metrics.result);
    500       EXPECT_EQ(0, metrics.crash_dump_count);
    501       EXPECT_TRUE(metrics.browser_clean_exit);
    502       EXPECT_EQ(1, metrics.browser_launch_count);
    503       EXPECT_EQ(0, metrics.browser_crash_count);
    504       EXPECT_EQ(0, metrics.renderer_crash_count);
    505       EXPECT_EQ(0, metrics.plugin_crash_count);
    506 
    507       // Verify metrics service does what we need when browser process crashes.
    508       LaunchBrowserAndServer();
    509       {
    510         // TabProxy should be released before Browser is closed.
    511         scoped_refptr<TabProxy> tab_proxy(GetActiveTab());
    512         EXPECT_TRUE(tab_proxy.get());
    513         if (tab_proxy.get()) {
    514           EXPECT_EQ(AUTOMATION_MSG_NAVIGATION_SUCCESS,
    515                     tab_proxy->NavigateToURL(GURL(test_url_1)));
    516         }
    517       }
    518       // Kill browser process.
    519       base::ProcessHandle browser_process = process();
    520       base::KillProcess(browser_process, 0, false);
    521 
    522       GetStabilityMetrics(&metrics);
    523       // This is not a clean shutdown.
    524       EXPECT_FALSE(metrics.browser_clean_exit);
    525       EXPECT_EQ(1, metrics.browser_crash_count);
    526       EXPECT_EQ(0, metrics.renderer_crash_count);
    527       EXPECT_EQ(0, metrics.plugin_crash_count);
    528       // Relaunch browser so UITest does not fire assertion during TearDown.
    529       LaunchBrowserAndServer();
    530     }
    531   }
    532 
    533   // For usage 3
    534   void NavigateThroughURLList(std::ofstream& log_file) {
    535     std::ifstream file(g_url_file_path.value().c_str());
    536     ASSERT_TRUE(file.is_open());
    537 
    538     for (int line_index = 1;
    539          line_index <= g_end_index && !file.eof();
    540          ++line_index) {
    541       std::string url_str;
    542       std::getline(file, url_str);
    543 
    544       if (file.fail())
    545         break;
    546 
    547       if (g_start_index <= line_index) {
    548         if (g_stress_opt || g_stress_deopt) {
    549           // Make sure the browser is running to communicate the stress
    550           // setting.
    551           EnsureBrowserAndServer();
    552           v8::Testing::StressType stress_type =
    553               g_stress_opt
    554                   ? v8::Testing::kStressTypeOpt
    555                   : v8::Testing::kStressTypeDeopt;
    556           scoped_refptr<TabProxy> tab_proxy(GetActiveTab());
    557           if (tab_proxy.get()) {
    558             tab_proxy->JavaScriptStressTestControl(
    559                 kJavaScriptStressTestSetStressRunType, stress_type);
    560           }
    561 
    562           bool success = true;
    563           // Load each page a number of times and keep the same browser open
    564           // for these loads. This loop will end if an error is encountered
    565           // during one of the loads and the error logged.
    566           for (int i = 0;
    567                i < v8::Testing::GetStressRuns() && success;
    568                i++) {
    569             bool last_load = (i == (v8::Testing::GetStressRuns() - 1));
    570             bool keep_browser = !last_load || g_continuous_load;
    571             bool log_only_error = !last_load;
    572             NavigationMetrics metrics;
    573 
    574             scoped_refptr<TabProxy> tab_proxy(GetActiveTab());
    575             if (tab_proxy.get()) {
    576               tab_proxy->JavaScriptStressTestControl(
    577                   kJavaScriptStressTestPrepareStressRun, i);
    578             }
    579             bool did_log_error;
    580             did_log_error = NavigateToURLLogResult(url_str,
    581                                                    log_file,
    582                                                    &metrics,
    583                                                    keep_browser,
    584                                                    log_only_error);
    585             success = metrics.result == NAVIGATION_SUCCESS && !did_log_error;
    586           }
    587         } else {
    588           NavigateToURLLogResult(
    589               url_str, log_file, NULL, g_continuous_load, false);
    590         }
    591       }
    592     }
    593 
    594     file.close();
    595   }
    596 
    597  protected:
    598   // Call the base class's SetUp method and initialize our own class members.
    599   virtual void SetUp() {
    600     // Set UI Test members before setting up browser.
    601     clear_profile_ = g_clear_profile;
    602 
    603     UITest::SetUp();
    604     g_browser_existing = true;
    605 
    606     // If 'BREAKPAD_DUMP_LOCATION' environment variable is set, use it instead.
    607     scoped_ptr<base::Environment> env(base::Environment::Create());
    608     std::string alternate_minidump_location;
    609     if (env->GetVar("BREAKPAD_DUMP_LOCATION", &alternate_minidump_location)) {
    610       crash_dumps_dir_path_ = base::FilePath::FromUTF8Unsafe(
    611           alternate_minidump_location);
    612     } else {
    613       PathService::Get(chrome::DIR_CRASH_DUMPS, &crash_dumps_dir_path_);
    614     }
    615 
    616     base::FileEnumerator enumerator(crash_dumps_dir_path_,
    617                                     false,  // not recursive
    618                                     base::FileEnumerator::FILES);
    619     for (base::FilePath path = enumerator.Next(); !path.value().empty();
    620          path = enumerator.Next()) {
    621       if (path.MatchesExtension(FILE_PATH_LITERAL(".dmp")))
    622         crash_dumps_[path.BaseName()] = true;
    623     }
    624   }
    625 
    626   base::FilePath ConstructSavedDebugLogPath(
    627       const base::FilePath& debug_log_path,
    628       int index) {
    629     std::string suffix("_");
    630     suffix.append(base::IntToString(index));
    631     return debug_log_path.InsertBeforeExtensionASCII(suffix);
    632   }
    633 
    634   void SaveDebugLog(const base::FilePath& log_path, const std::wstring& log_id,
    635                     std::ofstream& log_file, int index) {
    636     if (!log_path.empty()) {
    637       base::FilePath saved_log_file_path =
    638           ConstructSavedDebugLogPath(log_path, index);
    639       if (base::Move(log_path, saved_log_file_path)) {
    640         log_file << " " << log_id << "=" << saved_log_file_path.value();
    641       }
    642     }
    643   }
    644 
    645   // Rename the chrome and v8 debug log files if existing, and save the file
    646   // paths in the log_file provided.
    647   void SaveDebugLogs(std::ofstream& log_file) {
    648     static int url_count = 1;
    649     SaveDebugLog(g_chrome_log_path, L"chrome_log", log_file, url_count);
    650     SaveDebugLog(g_v8_log_path, L"v8_log", log_file, url_count);
    651     SaveDebugLog(g_test_log_path, L"test_log", log_file, url_count);
    652     url_count++;
    653   }
    654 
    655   // Delete a crash dump file.
    656   void DeleteCrashDump(base::FilePath crash_dump_file_name) {
    657     base::FilePath crash_dump_file_path(crash_dumps_dir_path_);
    658     crash_dump_file_path = crash_dump_file_path.Append(crash_dump_file_name);
    659     base::FilePath crash_text_file_path =
    660         crash_dump_file_path.ReplaceExtension(FILE_PATH_LITERAL("txt"));
    661 
    662     ASSERT_TRUE(file_util::DieFileDie(crash_dump_file_path, false));
    663     ASSERT_TRUE(file_util::DieFileDie(crash_text_file_path, false));
    664   }
    665 
    666   bool HasNewCrashDumps() {
    667     base::FileEnumerator enumerator(crash_dumps_dir_path_,
    668                                     false,  // not recursive
    669                                     base::FileEnumerator::FILES);
    670     for (base::FilePath path = enumerator.Next(); !path.value().empty();
    671          path = enumerator.Next()) {
    672       if (path.MatchesExtension(FILE_PATH_LITERAL(".dmp")) &&
    673           !crash_dumps_[path.BaseName()]) {
    674         return true;
    675       }
    676     }
    677 
    678     return false;
    679   }
    680 
    681   // Check whether there are new .dmp files. Return the list and optionally
    682   // delete them afterwards.
    683   void CollectNewCrashDumps(std::vector<base::FilePath>& new_crash_dumps,
    684                             NavigationMetrics* metrics,
    685                             bool delete_dumps) {
    686     int num_dumps = 0;
    687     base::FileEnumerator enumerator(crash_dumps_dir_path_,
    688                                     false,  // not recursive
    689                                     base::FileEnumerator::FILES);
    690     for (base::FilePath path = enumerator.Next(); !path.value().empty();
    691          path = enumerator.Next()) {
    692       if (path.MatchesExtension(FILE_PATH_LITERAL(".dmp")) &&
    693           !crash_dumps_[path.BaseName()]) {
    694         crash_dumps_[path.BaseName()] = true;
    695         base::FilePath crash_dump_file_path(crash_dumps_dir_path_);
    696         crash_dump_file_path = crash_dump_file_path.Append(path.BaseName());
    697         new_crash_dumps.push_back(crash_dump_file_path);
    698         if (delete_dumps)
    699           DeleteCrashDump(path.BaseName());
    700         num_dumps++;
    701       }
    702     }
    703     if (metrics)
    704       metrics->crash_dump_count = num_dumps;
    705   }
    706 
    707   // Get a PrefService whose contents correspond to the Local State file
    708   // that was saved by the app as it closed.  The caller takes ownership of the
    709   // returned PrefService object.
    710   PrefService* GetLocalState(PrefRegistry* registry) {
    711     base::FilePath path = user_data_dir().Append(chrome::kLocalStateFilename);
    712     PrefServiceMockBuilder builder;
    713     builder.WithUserFilePrefs(
    714         path, base::MessageLoop::current()->message_loop_proxy().get());
    715     return builder.Create(registry);
    716   }
    717 
    718   void GetStabilityMetrics(NavigationMetrics* metrics) {
    719     if (!metrics)
    720       return;
    721     scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
    722     registry->RegisterBooleanPref(prefs::kStabilityExitedCleanly, false);
    723     registry->RegisterIntegerPref(prefs::kStabilityLaunchCount, -1);
    724     registry->RegisterIntegerPref(prefs::kStabilityPageLoadCount, -1);
    725     registry->RegisterIntegerPref(prefs::kStabilityCrashCount, 0);
    726     registry->RegisterIntegerPref(prefs::kStabilityRendererCrashCount, 0);
    727 
    728     scoped_ptr<PrefService> local_state(GetLocalState(registry.get()));
    729     if (!local_state.get())
    730       return;
    731 
    732     metrics->browser_clean_exit =
    733         local_state->GetBoolean(prefs::kStabilityExitedCleanly);
    734     metrics->browser_launch_count =
    735         local_state->GetInteger(prefs::kStabilityLaunchCount);
    736     metrics->page_load_count =
    737         local_state->GetInteger(prefs::kStabilityPageLoadCount);
    738     metrics->browser_crash_count =
    739         local_state->GetInteger(prefs::kStabilityCrashCount);
    740     metrics->renderer_crash_count =
    741         local_state->GetInteger(prefs::kStabilityRendererCrashCount);
    742     // TODO(huanr)
    743     metrics->plugin_crash_count = 0;
    744 
    745     if (!metrics->browser_clean_exit)
    746       metrics->browser_crash_count++;
    747   }
    748 
    749   base::FilePath GetSampleDataDir() {
    750     base::FilePath test_dir;
    751     PathService::Get(chrome::DIR_TEST_DATA, &test_dir);
    752     test_dir = test_dir.AppendASCII("reliability");
    753     test_dir = test_dir.AppendASCII("sample_pages");
    754     return test_dir;
    755   }
    756 
    757   // The pathname of Chrome's crash dumps directory.
    758   base::FilePath crash_dumps_dir_path_;
    759 
    760   // The set of all the crash dumps we have seen.  Each crash generates a
    761   // .dmp and a .txt file in the crash dumps directory.  We only store the
    762   // .dmp files in this set.
    763   //
    764   // The set is implemented as a std::map.  The key is the file name, and
    765   // the value is false (the file is not in the set) or true (the file is
    766   // in the set).  The initial value for any key in std::map is 0 (false),
    767   // which in this case means a new file is not in the set initially,
    768   // exactly the semantics we want.
    769   std::map<base::FilePath, bool> crash_dumps_;
    770 };
    771 
    772 TEST_F(PageLoadTest, Reliability) {
    773   std::ofstream log_file;
    774 
    775   if (!g_log_file_path.empty()) {
    776     log_file.open(g_log_file_path.value().c_str());
    777   }
    778 
    779   for (int k = 0; k < g_iterations; ++k) {
    780     if (g_url_file_path.empty()) {
    781       NavigateThroughPageID(log_file);
    782     } else {
    783       NavigateThroughURLList(log_file);
    784     }
    785   }
    786 
    787   if (!g_end_url.empty()) {
    788     NavigateToURLLogResult(
    789         g_end_url, log_file, NULL, g_continuous_load, false);
    790   }
    791 
    792   log_file.close();
    793 }
    794 
    795 }  // namespace
    796 
    797