path: root/webkit/tools/test_shell/test_shell_main.cc

// Copyright (c) 2006-2008 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.

// Creates an instance of the test_shell.
#include "build/build_config.h"

#include "base/at_exit.h"
#include "base/basictypes.h"
#include "base/command_line.h"
#include "base/event_recorder.h"
#include "base/file_util.h"
#include "base/icu_util.h"
#include "base/memory_debug.h"
#include "base/message_loop.h"
#include "base/path_service.h"
#include "base/process_util.h"
#include "base/rand_util.h"
#include "base/stats_table.h"
#include "base/string_util.h"
#include "base/sys_info.h"
#include "base/trace_event.h"
#include "net/base/cookie_monster.h"
#include "net/base/net_module.h"
#include "net/http/http_cache.h"
#include "net/base/ssl_test_util.h"
#include "net/url_request/url_request_context.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/glue/window_open_disposition.h"
#include "webkit/tools/test_shell/simple_resource_loader_bridge.h"
#include "webkit/tools/test_shell/test_shell.h"
#include "webkit/tools/test_shell/test_shell_platform_delegate.h"
#include "webkit/tools/test_shell/test_shell_request_context.h"
#include "webkit/tools/test_shell/test_shell_switches.h"
#include "webkit/tools/test_shell/test_shell_webkit_init.h"

#include "WebKit.h"

#include <iostream>
using namespace std;

static const size_t kPathBufSize = 2048;

namespace {

// StatsTable initialization parameters.
static const char* kStatsFilePrefix = "testshell_";
static int kStatsFileThreads = 20;
static int kStatsFileCounters = 200;

}  // namespace

int main(int argc, char* argv[]) {
  base::EnableTerminationOnHeapCorruption();
  
  // Some tests may use base::Singleton<>, thus we need to instanciate
  // the AtExitManager or else we will leak objects.
  base::AtExitManager at_exit_manager;  

  TestShellPlatformDelegate::PreflightArgs(&argc, &argv);
  CommandLine::Init(argc, argv);
  const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
  
  TestShellPlatformDelegate platform(parsed_command_line);

  if (parsed_command_line.HasSwitch(test_shell::kStartupDialog))
    TestShell::ShowStartupDebuggingDialog();

  if (parsed_command_line.HasSwitch(test_shell::kCheckLayoutTestSystemDeps)) {
    exit(platform.CheckLayoutTestSystemDependencies() ? 0 : 1);
  }

  // Allocate a message loop for this thread.  Although it is not used
  // directly, its constructor sets up some necessary state.
  MessageLoopForUI main_message_loop;

  bool suppress_error_dialogs = (
       base::SysInfo::HasEnvVar(L"CHROME_HEADLESS") ||
       parsed_command_line.HasSwitch(test_shell::kNoErrorDialogs) ||
       parsed_command_line.HasSwitch(test_shell::kLayoutTests));
  bool layout_test_mode =
      parsed_command_line.HasSwitch(test_shell::kLayoutTests);

  bool enable_gp_fault_error_box = false;
  enable_gp_fault_error_box =
      parsed_command_line.HasSwitch(test_shell::kGPFaultErrorBox);
  TestShell::InitLogging(suppress_error_dialogs,
                         layout_test_mode,
                         enable_gp_fault_error_box);

  // Initialize WebKit for this scope.
  TestShellWebKitInit test_shell_webkit_init(layout_test_mode);

  // Suppress abort message in v8 library in debugging mode.
  // V8 calls abort() when it hits assertion errors.
  if (suppress_error_dialogs)
    platform.SuppressErrorReporting();

  if (parsed_command_line.HasSwitch(test_shell::kEnableTracing))
    base::TraceLog::StartTracing();

  net::HttpCache::Mode cache_mode = net::HttpCache::NORMAL;
  bool playback_mode = 
    parsed_command_line.HasSwitch(test_shell::kPlaybackMode);
  bool record_mode = 
    parsed_command_line.HasSwitch(test_shell::kRecordMode);

  if (playback_mode)
    cache_mode = net::HttpCache::PLAYBACK;
  else if (record_mode)
    cache_mode = net::HttpCache::RECORD;

  if (layout_test_mode ||
      parsed_command_line.HasSwitch(test_shell::kEnableFileCookies))
    net::CookieMonster::EnableFileScheme();

  std::wstring cache_path =
      parsed_command_line.GetSwitchValue(test_shell::kCacheDir);
  if (cache_path.empty()) {
    PathService::Get(base::DIR_EXE, &cache_path);
    file_util::AppendToPath(&cache_path, L"cache");
  }

  // Initializing with a default context, which means no on-disk cookie DB,
  // and no support for directory listings.
  SimpleResourceLoaderBridge::Init(
      new TestShellRequestContext(cache_path, cache_mode, layout_test_mode));

  // Load ICU data tables
  icu_util::Initialize();

  // Config the network module so it has access to a limited set of resources.
  net::NetModule::SetResourceProvider(TestShell::NetResourceProvider);

  // On Linux, load the test root certificate.
  net::TestServerLauncher ssl_util;
  ssl_util.LoadTestRootCert();

  platform.InitializeGUI();

  TestShell::InitializeTestShell(layout_test_mode);

  if (parsed_command_line.HasSwitch(test_shell::kAllowScriptsToCloseWindows))
    TestShell::SetAllowScriptsToCloseWindows();

  // Disable user themes for layout tests so pixel tests are consistent.
  if (layout_test_mode) {
    platform.SelectUnifiedTheme();
  }

  if (parsed_command_line.HasSwitch(test_shell::kTestShellTimeOut)) {
    const std::wstring timeout_str = parsed_command_line.GetSwitchValue(
        test_shell::kTestShellTimeOut);
    int timeout_ms = static_cast<int>(StringToInt64(timeout_str.c_str()));
    if (timeout_ms > 0)
      TestShell::SetFileTestTimeout(timeout_ms);
  }

  // Treat the first loose value as the initial URL to open.
  std::wstring uri;

  // Default to a homepage if we're interactive.
  if (!layout_test_mode) {
    PathService::Get(base::DIR_SOURCE_ROOT, &uri);
    file_util::AppendToPath(&uri, L"webkit");
    file_util::AppendToPath(&uri, L"data");
    file_util::AppendToPath(&uri, L"test_shell");
    file_util::AppendToPath(&uri, L"index.html");
  }

  std::vector<std::wstring> loose_values = parsed_command_line.GetLooseValues();
  if (loose_values.size() > 0)
    uri = loose_values[0];

  std::wstring js_flags =
    parsed_command_line.GetSwitchValue(test_shell::kJavaScriptFlags);
  // Test shell always exposes the GC.
  js_flags += L" --expose-gc";
  webkit_glue::SetJavaScriptFlags(js_flags);
  // Also expose GCController to JavaScript.
  webkit_glue::SetShouldExposeGCController(true);

  // Load and initialize the stats table.  Attempt to construct a somewhat
  // unique name to isolate separate instances from each other.
  StatsTable *table = new StatsTable(
      // truncate the random # to 32 bits for the benefit of Mac OS X, to
      // avoid tripping over its maximum shared memory segment name length
      kStatsFilePrefix + Uint64ToString(base::RandUint64() & 0xFFFFFFFFL),
      kStatsFileThreads,
      kStatsFileCounters);
  StatsTable::set_current(table);

  TestShell* shell;
  if (TestShell::CreateNewWindow(uri, &shell)) {
    if (record_mode || playback_mode) {
      platform.SetWindowPositionForRecording(shell);
      // Tell webkit as well.
      webkit_glue::SetRecordPlaybackMode(true);
    }

    shell->Show(shell->webView(), NEW_WINDOW);

    if (parsed_command_line.HasSwitch(test_shell::kDumpStatsTable))
      shell->DumpStatsTableOnExit();

    bool no_events = parsed_command_line.HasSwitch(test_shell::kNoEvents);
    if ((record_mode || playback_mode) && !no_events) {
      std::wstring script_path = cache_path;
      // Create the cache directory in case it doesn't exist.
      file_util::CreateDirectory(cache_path);
      file_util::AppendToPath(&script_path, L"script.log");
      if (record_mode)
        base::EventRecorder::current()->StartRecording(script_path);
      if (playback_mode)
        base::EventRecorder::current()->StartPlayback(script_path);
    }

    if (parsed_command_line.HasSwitch(test_shell::kDebugMemoryInUse)) {
      base::MemoryDebug::SetMemoryInUseEnabled(true);
      // Dump all in use memory at startup
      base::MemoryDebug::DumpAllMemoryInUse();
    }

    if (parsed_command_line.HasSwitch(test_shell::kEnableVideo)) {
      // TODO(scherkus): check for any DLL dependencies.
      webkit_glue::SetMediaPlayerAvailable(true);
    }

    // See if we need to run the tests.
    if (layout_test_mode) {
      // Set up for the kind of test requested.
      TestShell::TestParams params;
      if (parsed_command_line.HasSwitch(test_shell::kDumpPixels)) {
        // The pixel test flag also gives the image file name to use.
        params.dump_pixels = true;
        params.pixel_file_name = parsed_command_line.GetSwitchValue(
            test_shell::kDumpPixels);
        if (params.pixel_file_name.size() == 0) {
          fprintf(stderr, "No file specified for pixel tests");
          exit(1);
        }
      }
      if (parsed_command_line.HasSwitch(test_shell::kNoTree)) {
          params.dump_tree = false;
      }

      if (uri.length() == 0) {
        // Watch stdin for URLs.
        char filenameBuffer[kPathBufSize];
        while (fgets(filenameBuffer, sizeof(filenameBuffer), stdin)) {
          char *newLine = strchr(filenameBuffer, '\n');
          if (newLine)
            *newLine = '\0';
          if (!*filenameBuffer)
            continue;

          params.test_url = filenameBuffer;
          if (!TestShell::RunFileTest(params))
            break;
        }
      } else {
        params.test_url = WideToUTF8(uri).c_str();
        TestShell::RunFileTest(params);
      }

      shell->CallJSGC();
      shell->CallJSGC();
      if (shell) {
        // When we finish the last test, cleanup the LayoutTestController.
        // It may have references to not-yet-cleaned up windows.  By
        // cleaning up here we help purify reports.
        shell->ResetTestController();
        delete shell;
      }
    } else {
      MessageLoop::current()->Run();
    }

    // Flush any remaining messages.  This ensures that any accumulated
    // Task objects get destroyed before we exit, which avoids noise in
    // purify leak-test results.
    MessageLoop::current()->RunAllPending();

    if (record_mode)
      base::EventRecorder::current()->StopRecording();
    if (playback_mode)
      base::EventRecorder::current()->StopPlayback();
  }

  TestShell::ShutdownTestShell();
  TestShell::CleanupLogging();

  // Tear down shared StatsTable; prevents unit_tests from leaking it.
  StatsTable::set_current(NULL);
  delete table;

  return 0;
}