src/content/shell/browser/shell_browser_main.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/shell/browser/shell_browser_main.h"
   6
   7 #include <iostream>
   8
   9 #include "base/command_line.h"
  10 #include "base/files/file_path.h"
  11 #include "base/files/file_util.h"
  12 #include "base/files/scoped_temp_dir.h"
  13 #include "base/logging.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/message_loop/message_loop.h"
  16 #include "base/strings/sys_string_conversions.h"
  17 #include "base/strings/utf_string_conversions.h"
  18 #include "base/threading/thread_restrictions.h"
  19 #include "content/public/browser/browser_main_runner.h"
  20 #include "content/public/common/url_constants.h"
  21 #include "content/shell/browser/shell.h"
  22 #include "content/shell/browser/webkit_test_controller.h"
  23 #include "content/shell/common/shell_switches.h"
  24 #include "content/shell/common/webkit_test_helpers.h"
  25 #include "net/base/filename_util.h"
  26
  27 #if defined(OS_ANDROID)
  28 #include "base/run_loop.h"
  29 #include "content/shell/browser/shell_layout_tests_android.h"
  30 #endif
  31
  32 namespace {
  33
  34 GURL GetURLForLayoutTest(const std::string& test_name,
  35                          base::FilePath* current_working_directory,
  36                          bool* enable_pixel_dumping,
  37                          std::string* expected_pixel_hash) {
  38   // A test name is formated like file:///path/to/test'--pixel-test'pixelhash
  39   std::string path_or_url = test_name;
  40   std::string pixel_switch;
  41   std::string pixel_hash;
  42   std::string::size_type separator_position = path_or_url.find('\'');
  43   if (separator_position != std::string::npos) {
  44     pixel_switch = path_or_url.substr(separator_position + 1);
  45     path_or_url.erase(separator_position);
  46   }
  47   separator_position = pixel_switch.find('\'');
  48   if (separator_position != std::string::npos) {
  49     pixel_hash = pixel_switch.substr(separator_position + 1);
  50     pixel_switch.erase(separator_position);
  51   }
  52   if (enable_pixel_dumping) {
  53     *enable_pixel_dumping =
  54         (pixel_switch == "--pixel-test" || pixel_switch == "-p");
  55   }
  56   if (expected_pixel_hash)
  57     *expected_pixel_hash = pixel_hash;
  58
  59   GURL test_url;
  60 #if defined(OS_ANDROID)
  61   if (content::GetTestUrlForAndroid(path_or_url, &test_url))
  62     return test_url;
  63 #endif
  64
  65   test_url = GURL(path_or_url);
  66   if (!(test_url.is_valid() && test_url.has_scheme())) {
  67     // We're outside of the message loop here, and this is a test.
  68     base::ThreadRestrictions::ScopedAllowIO allow_io;
  69 #if defined(OS_WIN)
  70     std::wstring wide_path_or_url =
  71         base::SysNativeMBToWide(path_or_url);
  72     base::FilePath local_file(wide_path_or_url);
  73 #else
  74     base::FilePath local_file(path_or_url);
  75 #endif
  76     if (!base::PathExists(local_file)) {
  77       local_file = content::GetWebKitRootDirFilePath()
  78           .Append(FILE_PATH_LITERAL("LayoutTests")).Append(local_file);
  79     }
  80     test_url = net::FilePathToFileURL(base::MakeAbsoluteFilePath(local_file));
  81   }
  82   base::FilePath local_path;
  83   if (current_working_directory) {
  84     // We're outside of the message loop here, and this is a test.
  85     base::ThreadRestrictions::ScopedAllowIO allow_io;
  86     if (net::FileURLToFilePath(test_url, &local_path))
  87       *current_working_directory = local_path.DirName();
  88     else
  89       base::GetCurrentDirectory(current_working_directory);
  90   }
  91   return test_url;
  92 }
  93
  94 bool GetNextTest(const CommandLine::StringVector& args,
  95                  size_t* position,
  96                  std::string* test) {
  97   if (*position >= args.size())
  98     return false;
  99   if (args[*position] == FILE_PATH_LITERAL("-"))
 100     return !!std::getline(std::cin, *test, '\n');
 101 #if defined(OS_WIN)
 102   *test = base::WideToUTF8(args[(*position)++]);
 103 #else
 104   *test = args[(*position)++];
 105 #endif
 106   return true;
 107 }
 108
 109 bool RunOneTest(const std::string& test_string,
 110                 bool* ran_at_least_once,
 111                 const scoped_ptr<content::BrowserMainRunner>& main_runner) {
 112   if (test_string.empty())
 113     return true;
 114   if (test_string == "QUIT")
 115     return false;
 116
 117   bool enable_pixel_dumps;
 118   std::string pixel_hash;
 119   base::FilePath cwd;
 120   GURL test_url = GetURLForLayoutTest(
 121       test_string, &cwd, &enable_pixel_dumps, &pixel_hash);
 122   if (!content::WebKitTestController::Get()->PrepareForLayoutTest(
 123           test_url, cwd, enable_pixel_dumps, pixel_hash)) {
 124     return false;
 125   }
 126
 127   *ran_at_least_once = true;
 128 #if defined(OS_ANDROID)
 129   // The message loop on Android is provided by the system, and does not
 130   // offer a blocking Run() method. For layout tests, use a nested loop
 131   // together with a base::RunLoop so it can block until a QuitClosure.
 132   base::RunLoop run_loop;
 133   run_loop.Run();
 134 #else
 135   main_runner->Run();
 136 #endif
 137
 138   if (!content::WebKitTestController::Get()->ResetAfterLayoutTest())
 139     return false;
 140
 141 #if defined(OS_ANDROID)
 142   // There will be left-over tasks in the queue for Android because the
 143   // main window is being destroyed. Run them before starting the next test.
 144   base::MessageLoop::current()->RunUntilIdle();
 145 #endif
 146   return true;
 147 }
 148
 149 }  // namespace
 150
 151 // Main routine for running as the Browser process.
 152 int ShellBrowserMain(
 153     const content::MainFunctionParams& parameters,
 154     const scoped_ptr<content::BrowserMainRunner>& main_runner) {
 155   bool layout_test_mode =
 156       CommandLine::ForCurrentProcess()->HasSwitch(switches::kDumpRenderTree);
 157   base::ScopedTempDir browser_context_path_for_layout_tests;
 158
 159   if (layout_test_mode) {
 160     CHECK(browser_context_path_for_layout_tests.CreateUniqueTempDir());
 161     CHECK(!browser_context_path_for_layout_tests.path().MaybeAsASCII().empty());
 162     CommandLine::ForCurrentProcess()->AppendSwitchASCII(
 163         switches::kContentShellDataPath,
 164         browser_context_path_for_layout_tests.path().MaybeAsASCII());
 165
 166 #if defined(OS_ANDROID)
 167     content::EnsureInitializeForAndroidLayoutTests();
 168 #endif
 169   }
 170
 171   int exit_code = main_runner->Initialize(parameters);
 172   DCHECK_LT(exit_code, 0)
 173       << "BrowserMainRunner::Initialize failed in ShellBrowserMain";
 174
 175   if (exit_code >= 0)
 176     return exit_code;
 177
 178   if (CommandLine::ForCurrentProcess()->HasSwitch(
 179         switches::kCheckLayoutTestSysDeps)) {
 180     base::MessageLoop::current()->PostTask(FROM_HERE,
 181                                            base::MessageLoop::QuitClosure());
 182     main_runner->Run();
 183     content::Shell::CloseAllWindows();
 184     main_runner->Shutdown();
 185     return 0;
 186   }
 187
 188   if (layout_test_mode) {
 189     content::WebKitTestController test_controller;
 190     {
 191       // We're outside of the message loop here, and this is a test.
 192       base::ThreadRestrictions::ScopedAllowIO allow_io;
 193       base::FilePath temp_path;
 194       base::GetTempDir(&temp_path);
 195       test_controller.SetTempPath(temp_path);
 196     }
 197     std::string test_string;
 198     CommandLine::StringVector args =
 199         CommandLine::ForCurrentProcess()->GetArgs();
 200     size_t command_line_position = 0;
 201     bool ran_at_least_once = false;
 202
 203     std::cout << "#READY\n";
 204     std::cout.flush();
 205
 206     while (GetNextTest(args, &command_line_position, &test_string)) {
 207       if (!RunOneTest(test_string, &ran_at_least_once, main_runner))
 208         break;
 209     }
 210     if (!ran_at_least_once) {
 211       base::MessageLoop::current()->PostTask(FROM_HERE,
 212                                              base::MessageLoop::QuitClosure());
 213       main_runner->Run();
 214     }
 215
 216 #if defined(OS_ANDROID)
 217     // Android should only execute Shutdown() here when running layout tests.
 218     main_runner->Shutdown();
 219 #endif
 220
 221     exit_code = 0;
 222   }
 223
 224 #if !defined(OS_ANDROID)
 225   if (!layout_test_mode)
 226     exit_code = main_runner->Run();
 227
 228   main_runner->Shutdown();
 229 #endif
 230
 231   return exit_code;
 232 }