content/shell/browser/webkit_test_controller.h

   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 #ifndef CONTENT_SHELL_BROWSER_WEBKIT_TEST_CONTROLLER_H_
   6 #define CONTENT_SHELL_BROWSER_WEBKIT_TEST_CONTROLLER_H_
   7
   8 #include <ostream>
   9 #include <string>
  10
  11 #include "base/cancelable_callback.h"
  12 #include "base/files/file_path.h"
  13 #include "base/synchronization/lock.h"
  14 #include "base/threading/non_thread_safe.h"
  15 #include "content/public/browser/gpu_data_manager_observer.h"
  16 #include "content/public/browser/notification_observer.h"
  17 #include "content/public/browser/notification_registrar.h"
  18 #include "content/public/browser/render_view_host_observer.h"
  19 #include "content/public/browser/web_contents_observer.h"
  20 #include "ui/gfx/size.h"
  21 #include "webkit/common/webpreferences.h"
  22
  23 #if defined(OS_ANDROID)
  24 #include "base/threading/thread_restrictions.h"
  25 #endif
  26
  27 class SkBitmap;
  28
  29 namespace content {
  30
  31 class Shell;
  32
  33 #if defined(OS_ANDROID)
  34 // Android uses a nested message loop for running layout tests because the
  35 // default message loop, provided by the system, does not offer a blocking
  36 // Run() method. The loop itself, implemented as NestedMessagePumpAndroid,
  37 // uses a base::WaitableEvent allowing it to sleep until more events arrive.
  38 class ScopedAllowWaitForAndroidLayoutTests {
  39  private:
  40   base::ThreadRestrictions::ScopedAllowWait wait;
  41 };
  42 #endif
  43
  44 class WebKitTestResultPrinter {
  45  public:
  46   WebKitTestResultPrinter(std::ostream* output, std::ostream* error);
  47   ~WebKitTestResultPrinter();
  48
  49   void reset() {
  50     state_ = DURING_TEST;
  51   }
  52   bool output_finished() const { return state_ == AFTER_TEST; }
  53   void set_capture_text_only(bool capture_text_only) {
  54     capture_text_only_ = capture_text_only;
  55   }
  56
  57   void set_encode_binary_data(bool encode_binary_data) {
  58     encode_binary_data_ = encode_binary_data;
  59   }
  60
  61   void PrintTextHeader();
  62   void PrintTextBlock(const std::string& block);
  63   void PrintTextFooter();
  64
  65   void PrintImageHeader(const std::string& actual_hash,
  66                         const std::string& expected_hash);
  67   void PrintImageBlock(const std::vector<unsigned char>& png_image);
  68   void PrintImageFooter();
  69
  70   void PrintAudioHeader();
  71   void PrintAudioBlock(const std::vector<unsigned char>& audio_data);
  72   void PrintAudioFooter();
  73
  74   void AddMessage(const std::string& message);
  75   void AddMessageRaw(const std::string& message);
  76   void AddErrorMessage(const std::string& message);
  77
  78   void CloseStderr();
  79
  80  private:
  81   void PrintEncodedBinaryData(const std::vector<unsigned char>& data);
  82
  83   enum State {
  84     DURING_TEST,
  85     IN_TEXT_BLOCK,
  86     IN_AUDIO_BLOCK,
  87     IN_IMAGE_BLOCK,
  88     AFTER_TEST
  89   };
  90   State state_;
  91
  92   bool capture_text_only_;
  93   bool encode_binary_data_;
  94
  95   std::ostream* output_;
  96   std::ostream* error_;
  97
  98   DISALLOW_COPY_AND_ASSIGN(WebKitTestResultPrinter);
  99 };
 100
 101 class WebKitTestController : public base::NonThreadSafe,
 102                              public WebContentsObserver,
 103                              public NotificationObserver,
 104                              public GpuDataManagerObserver {
 105  public:
 106   static WebKitTestController* Get();
 107
 108   WebKitTestController();
 109   virtual ~WebKitTestController();
 110
 111   // True if the controller is ready for testing.
 112   bool PrepareForLayoutTest(const GURL& test_url,
 113                             const base::FilePath& current_working_directory,
 114                             bool enable_pixel_dumping,
 115                             const std::string& expected_pixel_hash);
 116   // True if the controller was reset successfully.
 117   bool ResetAfterLayoutTest();
 118
 119   void SetTempPath(const base::FilePath& temp_path);
 120   void RendererUnresponsive();
 121   void WorkerCrashed();
 122   void OverrideWebkitPrefs(WebPreferences* prefs);
 123   void OpenURL(const GURL& url);
 124   void TestFinishedInSecondaryWindow();
 125   bool IsMainWindow(WebContents* web_contents) const;
 126
 127   WebKitTestResultPrinter* printer() { return printer_.get(); }
 128   void set_printer(WebKitTestResultPrinter* printer) {
 129     printer_.reset(printer);
 130   }
 131
 132   // WebContentsObserver implementation.
 133   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 134   virtual void PluginCrashed(const base::FilePath& plugin_path,
 135                              base::ProcessId plugin_pid) OVERRIDE;
 136   virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
 137   virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
 138   virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE;
 139
 140   // NotificationObserver implementation.
 141   virtual void Observe(int type,
 142                        const NotificationSource& source,
 143                        const NotificationDetails& details) OVERRIDE;
 144
 145   // GpuDataManagerObserver implementation.
 146   virtual void OnGpuProcessCrashed(base::TerminationStatus exit_code) OVERRIDE;
 147
 148  private:
 149   enum TestPhase {
 150     BETWEEN_TESTS,
 151     DURING_TEST,
 152     CLEAN_UP
 153   };
 154
 155   static WebKitTestController* instance_;
 156
 157   void TimeoutHandler();
 158   void DiscardMainWindow();
 159   void SendTestConfiguration();
 160
 161   // Message handlers.
 162   void OnAudioDump(const std::vector<unsigned char>& audio_dump);
 163   void OnImageDump(const std::string& actual_pixel_hash, const SkBitmap& image);
 164   void OnTextDump(const std::string& dump);
 165   void OnPrintMessage(const std::string& message);
 166   void OnOverridePreferences(const WebPreferences& prefs);
 167   void OnTestFinished();
 168   void OnShowDevTools();
 169   void OnCloseDevTools();
 170   void OnGoToOffset(int offset);
 171   void OnReload();
 172   void OnLoadURLForFrame(const GURL& url, const std::string& frame_name);
 173   void OnCaptureSessionHistory();
 174   void OnCloseRemainingWindows();
 175   void OnResetDone();
 176
 177   scoped_ptr<WebKitTestResultPrinter> printer_;
 178
 179   base::FilePath current_working_directory_;
 180   base::FilePath temp_path_;
 181
 182   Shell* main_window_;
 183
 184   // The PID of the render process of the render view host of main_window_.
 185   int current_pid_;
 186
 187   // True if we should set the test configuration to the next RenderViewHost
 188   // created.
 189   bool send_configuration_to_next_host_;
 190
 191   // What phase of running an individual test we are currently in.
 192   TestPhase test_phase_;
 193
 194   // True if the currently running test is a compositing test.
 195   bool is_compositing_test_;
 196
 197   // Per test config.
 198   bool enable_pixel_dumping_;
 199   std::string expected_pixel_hash_;
 200   gfx::Size initial_size_;
 201   GURL test_url_;
 202
 203   // True if the WebPreferences of newly created RenderViewHost should be
 204   // overridden with prefs_.
 205   bool should_override_prefs_;
 206   WebPreferences prefs_;
 207
 208   NotificationRegistrar registrar_;
 209
 210 #if defined(OS_ANDROID)
 211   // Because of the nested message pump implementation, Android needs to allow
 212   // waiting on the UI thread while layout tests are being ran.
 213   ScopedAllowWaitForAndroidLayoutTests reduced_restrictions_;
 214 #endif
 215
 216   DISALLOW_COPY_AND_ASSIGN(WebKitTestController);
 217 };
 218
 219 }  // namespace content
 220
 221 #endif  // CONTENT_SHELL_BROWSER_WEBKIT_TEST_CONTROLLER_H_