src/chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc

   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 #include "base/command_line.h"
   6 #include "chrome/browser/chrome_notification_types.h"
   7 #include "chrome/browser/devtools/devtools_window.h"
   8 #include "chrome/browser/search/search.h"
   9 #include "chrome/browser/ui/browser.h"
  10 #include "chrome/browser/ui/browser_commands.h"
  11 #include "chrome/browser/ui/singleton_tabs.h"
  12 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  13 #include "chrome/common/chrome_switches.h"
  14 #include "chrome/common/url_constants.h"
  15 #include "chrome/test/base/in_process_browser_test.h"
  16 #include "chrome/test/base/test_switches.h"
  17 #include "chrome/test/base/ui_test_utils.h"
  18 #include "content/public/browser/notification_service.h"
  19 #include "content/public/browser/render_process_host.h"
  20 #include "content/public/browser/render_view_host.h"
  21 #include "content/public/browser/render_widget_host_iterator.h"
  22 #include "content/public/browser/web_contents.h"
  23 #include "content/public/browser/web_contents_observer.h"
  24
  25 using content::RenderViewHost;
  26 using content::RenderWidgetHost;
  27 using content::WebContents;
  28
  29 namespace {
  30
  31 int RenderProcessHostCount() {
  32   content::RenderProcessHost::iterator hosts =
  33       content::RenderProcessHost::AllHostsIterator();
  34   int count = 0;
  35   while (!hosts.IsAtEnd()) {
  36     if (hosts.GetCurrentValue()->HasConnection())
  37       count++;
  38     hosts.Advance();
  39   }
  40   return count;
  41 }
  42
  43 RenderViewHost* FindFirstDevToolsHost() {
  44   scoped_ptr<content::RenderWidgetHostIterator> widgets(
  45       RenderWidgetHost::GetRenderWidgetHosts());
  46   while (content::RenderWidgetHost* widget = widgets->GetNextHost()) {
  47     if (!widget->GetProcess()->HasConnection())
  48       continue;
  49     if (!widget->IsRenderView())
  50       continue;
  51     RenderViewHost* host = RenderViewHost::From(widget);
  52     WebContents* contents = WebContents::FromRenderViewHost(host);
  53     GURL url = contents->GetURL();
  54     if (url.SchemeIs(content::kChromeDevToolsScheme))
  55       return host;
  56   }
  57   return NULL;
  58 }
  59
  60 }  // namespace
  61
  62 class ChromeRenderProcessHostTest : public InProcessBrowserTest {
  63  public:
  64   ChromeRenderProcessHostTest() {}
  65
  66   // Show a tab, activating the current one if there is one, and wait for
  67   // the renderer process to be created or foregrounded, returning the process
  68   // handle.
  69   base::ProcessHandle ShowSingletonTab(const GURL& page) {
  70     chrome::ShowSingletonTab(browser(), page);
  71     WebContents* wc = browser()->tab_strip_model()->GetActiveWebContents();
  72     CHECK(wc->GetURL() == page);
  73
  74     WaitForLauncherThread();
  75     return wc->GetRenderProcessHost()->GetHandle();
  76   }
  77
  78   // Loads the given url in a new background tab and returns the handle of its
  79   // renderer.
  80   base::ProcessHandle OpenBackgroundTab(const GURL& page) {
  81     ui_test_utils::NavigateToURLWithDisposition(browser(), page,
  82         NEW_BACKGROUND_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
  83
  84     TabStripModel* tab_strip = browser()->tab_strip_model();
  85     WebContents* wc = tab_strip->GetWebContentsAt(
  86         tab_strip->active_index() + 1);
  87     CHECK(wc->GetVisibleURL() == page);
  88
  89     WaitForLauncherThread();
  90     return wc->GetRenderProcessHost()->GetHandle();
  91   }
  92
  93   // Ensures that the backgrounding / foregrounding gets a chance to run.
  94   void WaitForLauncherThread() {
  95     content::BrowserThread::PostTaskAndReply(
  96         content::BrowserThread::PROCESS_LAUNCHER, FROM_HERE,
  97         base::Bind(&base::DoNothing), base::MessageLoop::QuitClosure());
  98     base::MessageLoop::current()->Run();
  99   }
 100
 101   // When we hit the max number of renderers, verify that the way we do process
 102   // sharing behaves correctly.  In particular, this test is verifying that even
 103   // when we hit the max process limit, that renderers of each type will wind up
 104   // in a process of that type, even if that means creating a new process.
 105   void TestProcessOverflow() {
 106     int tab_count = 1;
 107     int host_count = 1;
 108     WebContents* tab1 = NULL;
 109     WebContents* tab2 = NULL;
 110     content::RenderProcessHost* rph1 = NULL;
 111     content::RenderProcessHost* rph2 = NULL;
 112     content::RenderProcessHost* rph3 = NULL;
 113
 114     // Change the first tab to be the omnibox page (TYPE_WEBUI).
 115     GURL omnibox(chrome::kChromeUIOmniboxURL);
 116     ui_test_utils::NavigateToURL(browser(), omnibox);
 117     EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 118     tab1 = browser()->tab_strip_model()->GetWebContentsAt(tab_count - 1);
 119     rph1 = tab1->GetRenderProcessHost();
 120     EXPECT_EQ(omnibox, tab1->GetURL());
 121     EXPECT_EQ(host_count, RenderProcessHostCount());
 122
 123     // Create a new TYPE_TABBED tab.  It should be in its own process.
 124     GURL page1("data:text/html,hello world1");
 125
 126     ui_test_utils::WindowedTabAddedNotificationObserver observer1(
 127         content::NotificationService::AllSources());
 128     chrome::ShowSingletonTab(browser(), page1);
 129     observer1.Wait();
 130
 131     tab_count++;
 132     host_count++;
 133     EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 134     tab1 = browser()->tab_strip_model()->GetWebContentsAt(tab_count - 1);
 135     rph2 = tab1->GetRenderProcessHost();
 136     EXPECT_EQ(tab1->GetURL(), page1);
 137     EXPECT_EQ(host_count, RenderProcessHostCount());
 138     EXPECT_NE(rph1, rph2);
 139
 140     // Create another TYPE_TABBED tab.  It should share the previous process.
 141     GURL page2("data:text/html,hello world2");
 142     ui_test_utils::WindowedTabAddedNotificationObserver observer2(
 143         content::NotificationService::AllSources());
 144     chrome::ShowSingletonTab(browser(), page2);
 145     observer2.Wait();
 146     tab_count++;
 147     EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 148     tab2 = browser()->tab_strip_model()->GetWebContentsAt(tab_count - 1);
 149     EXPECT_EQ(tab2->GetURL(), page2);
 150     EXPECT_EQ(host_count, RenderProcessHostCount());
 151     EXPECT_EQ(tab2->GetRenderProcessHost(), rph2);
 152
 153     // Create another TYPE_WEBUI tab.  It should share the process with omnibox.
 154     // Note: intentionally create this tab after the TYPE_TABBED tabs to
 155     // exercise bug 43448 where extension and WebUI tabs could get combined into
 156     // normal renderers.
 157     GURL history(chrome::kChromeUIHistoryURL);
 158     ui_test_utils::WindowedTabAddedNotificationObserver observer3(
 159         content::NotificationService::AllSources());
 160     chrome::ShowSingletonTab(browser(), history);
 161     observer3.Wait();
 162     tab_count++;
 163     EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 164     tab2 = browser()->tab_strip_model()->GetWebContentsAt(tab_count - 1);
 165     EXPECT_EQ(tab2->GetURL(), GURL(history));
 166     EXPECT_EQ(host_count, RenderProcessHostCount());
 167     EXPECT_EQ(tab2->GetRenderProcessHost(), rph1);
 168
 169     // Create a TYPE_EXTENSION tab.  It should be in its own process.
 170     // (the bookmark manager is implemented as an extension)
 171     GURL bookmarks(chrome::kChromeUIBookmarksURL);
 172     ui_test_utils::WindowedTabAddedNotificationObserver observer4(
 173         content::NotificationService::AllSources());
 174     chrome::ShowSingletonTab(browser(), bookmarks);
 175     observer4.Wait();
 176     tab_count++;
 177     host_count++;
 178     EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 179     tab1 = browser()->tab_strip_model()->GetWebContentsAt(tab_count - 1);
 180     rph3 = tab1->GetRenderProcessHost();
 181     EXPECT_EQ(tab1->GetURL(), bookmarks);
 182     EXPECT_EQ(host_count, RenderProcessHostCount());
 183     EXPECT_NE(rph1, rph3);
 184     EXPECT_NE(rph2, rph3);
 185   }
 186 };
 187
 188
 189 class ChromeRenderProcessHostTestWithCommandLine
 190     : public ChromeRenderProcessHostTest {
 191  protected:
 192   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
 193     command_line->AppendSwitchASCII(switches::kRendererProcessLimit, "1");
 194   }
 195 };
 196
 197 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, ProcessPerTab) {
 198   // Set max renderers to 1 to force running out of processes.
 199   content::RenderProcessHost::SetMaxRendererProcessCount(1);
 200
 201   CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
 202   parsed_command_line.AppendSwitch(switches::kProcessPerTab);
 203
 204   int tab_count = 1;
 205   int host_count = 1;
 206
 207   // Change the first tab to be the new tab page (TYPE_WEBUI).
 208   GURL omnibox(chrome::kChromeUIOmniboxURL);
 209   ui_test_utils::NavigateToURL(browser(), omnibox);
 210   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 211   EXPECT_EQ(host_count, RenderProcessHostCount());
 212
 213   // Create a new TYPE_TABBED tab.  It should be in its own process.
 214   GURL page1("data:text/html,hello world1");
 215   ui_test_utils::WindowedTabAddedNotificationObserver observer1(
 216       content::NotificationService::AllSources());
 217   chrome::ShowSingletonTab(browser(), page1);
 218   observer1.Wait();
 219   tab_count++;
 220   host_count++;
 221   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 222   EXPECT_EQ(host_count, RenderProcessHostCount());
 223
 224   // Create another TYPE_TABBED tab.  It should share the previous process.
 225   GURL page2("data:text/html,hello world2");
 226   ui_test_utils::WindowedTabAddedNotificationObserver observer2(
 227       content::NotificationService::AllSources());
 228   chrome::ShowSingletonTab(browser(), page2);
 229   observer2.Wait();
 230   tab_count++;
 231   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 232   EXPECT_EQ(host_count, RenderProcessHostCount());
 233
 234   // Create another omnibox tab.  It should share the process with the other
 235   // WebUI.
 236   ui_test_utils::NavigateToURLWithDisposition(
 237       browser(), omnibox, NEW_FOREGROUND_TAB,
 238       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
 239   tab_count++;
 240   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 241   EXPECT_EQ(host_count, RenderProcessHostCount());
 242
 243   // Create another omnibox tab.  It should share the process with the other
 244   // WebUI.
 245   ui_test_utils::NavigateToURLWithDisposition(
 246       browser(), omnibox, NEW_FOREGROUND_TAB,
 247       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
 248   tab_count++;
 249   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 250   EXPECT_EQ(host_count, RenderProcessHostCount());
 251 }
 252
 253 // We don't change process priorities on Mac or Posix because the user lacks the
 254 // permission to raise a process' priority even after lowering it.
 255 #if defined(OS_WIN) || defined(OS_LINUX)
 256 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, Backgrounding) {
 257   if (!base::Process::CanBackgroundProcesses()) {
 258     LOG(ERROR) << "Can't background processes";
 259     return;
 260   }
 261   CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
 262   parsed_command_line.AppendSwitch(switches::kProcessPerTab);
 263
 264   // Change the first tab to be the omnibox page (TYPE_WEBUI).
 265   GURL omnibox(chrome::kChromeUIOmniboxURL);
 266   ui_test_utils::NavigateToURL(browser(), omnibox);
 267
 268   // Create a new tab. It should be foreground.
 269   GURL page1("data:text/html,hello world1");
 270   base::ProcessHandle pid1 = ShowSingletonTab(page1);
 271   EXPECT_FALSE(base::Process(pid1).IsProcessBackgrounded());
 272
 273   // Create another tab. It should be foreground, and the first tab should
 274   // now be background.
 275   GURL page2("data:text/html,hello world2");
 276   base::ProcessHandle pid2 = ShowSingletonTab(page2);
 277   EXPECT_NE(pid1, pid2);
 278   EXPECT_TRUE(base::Process(pid1).IsProcessBackgrounded());
 279   EXPECT_FALSE(base::Process(pid2).IsProcessBackgrounded());
 280
 281   // Load another tab in background. The renderer of the new tab should be
 282   // backgrounded, while visibility of the other renderers should not change.
 283   GURL page3("data:text/html,hello world3");
 284   base::ProcessHandle pid3 = OpenBackgroundTab(page3);
 285   EXPECT_NE(pid3, pid1);
 286   EXPECT_NE(pid3, pid2);
 287   EXPECT_TRUE(base::Process(pid1).IsProcessBackgrounded());
 288   EXPECT_FALSE(base::Process(pid2).IsProcessBackgrounded());
 289   EXPECT_TRUE(base::Process(pid3).IsProcessBackgrounded());
 290
 291   // Navigate back to the first page. Its renderer should be in foreground
 292   // again while the other renderers should be backgrounded.
 293   EXPECT_EQ(pid1, ShowSingletonTab(page1));
 294   EXPECT_FALSE(base::Process(pid1).IsProcessBackgrounded());
 295   EXPECT_TRUE(base::Process(pid2).IsProcessBackgrounded());
 296   EXPECT_TRUE(base::Process(pid3).IsProcessBackgrounded());
 297 }
 298 #endif
 299
 300 // TODO(nasko): crbug.com/173137
 301 #if defined(OS_WIN)
 302 #define MAYBE_ProcessOverflow DISABLED_ProcessOverflow
 303 #else
 304 #define MAYBE_ProcessOverflow ProcessOverflow
 305 #endif
 306
 307 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, MAYBE_ProcessOverflow) {
 308   // Set max renderers to 1 to force running out of processes.
 309   content::RenderProcessHost::SetMaxRendererProcessCount(1);
 310   TestProcessOverflow();
 311 }
 312
 313 // Variation of the ProcessOverflow test, which is driven through command line
 314 // parameter instead of direct function call into the class.
 315 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTestWithCommandLine,
 316                        ProcessOverflow) {
 317   TestProcessOverflow();
 318 }
 319
 320 // Ensure that DevTools opened to debug DevTools is launched in a separate
 321 // process when --process-per-tab is set. See crbug.com/69873.
 322 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest,
 323                        DevToolsOnSelfInOwnProcessPPT) {
 324 #if defined(OS_WIN) && defined(USE_ASH)
 325   // Disable this test in Metro+Ash for now (http://crbug.com/262796).
 326   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAshBrowserTests))
 327     return;
 328 #endif
 329
 330   CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
 331   parsed_command_line.AppendSwitch(switches::kProcessPerTab);
 332
 333   int tab_count = 1;
 334   int host_count = 1;
 335
 336   GURL page1("data:text/html,hello world1");
 337   ui_test_utils::WindowedTabAddedNotificationObserver observer1(
 338       content::NotificationService::AllSources());
 339   chrome::ShowSingletonTab(browser(), page1);
 340   observer1.Wait();
 341   tab_count++;
 342   host_count++;
 343   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 344   EXPECT_EQ(host_count, RenderProcessHostCount());
 345
 346   // DevTools start in docked mode (no new tab), in a separate process.
 347   chrome::ToggleDevToolsWindow(browser(), DevToolsToggleAction::Inspect());
 348   host_count++;
 349   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 350   EXPECT_EQ(host_count, RenderProcessHostCount());
 351
 352   RenderViewHost* devtools = FindFirstDevToolsHost();
 353   DCHECK(devtools);
 354
 355   // DevTools start in a separate process.
 356   DevToolsWindow::OpenDevToolsWindow(devtools, DevToolsToggleAction::Inspect());
 357   host_count++;
 358   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 359   EXPECT_EQ(host_count, RenderProcessHostCount());
 360
 361   // close docked devtools
 362   content::WindowedNotificationObserver close_observer(
 363       content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
 364       content::Source<WebContents>(WebContents::FromRenderViewHost(devtools)));
 365
 366   chrome::ToggleDevToolsWindow(browser(), DevToolsToggleAction::Toggle());
 367   close_observer.Wait();
 368 }
 369
 370 // Ensure that DevTools opened to debug DevTools is launched in a separate
 371 // process. See crbug.com/69873.
 372 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest,
 373                        DevToolsOnSelfInOwnProcess) {
 374 #if defined(OS_WIN) && defined(USE_ASH)
 375   // Disable this test in Metro+Ash for now (http://crbug.com/262796).
 376   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAshBrowserTests))
 377     return;
 378 #endif
 379
 380   int tab_count = 1;
 381   int host_count = 1;
 382
 383   GURL page1("data:text/html,hello world1");
 384   ui_test_utils::WindowedTabAddedNotificationObserver observer1(
 385       content::NotificationService::AllSources());
 386   chrome::ShowSingletonTab(browser(), page1);
 387   observer1.Wait();
 388   tab_count++;
 389   host_count++;
 390   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 391   EXPECT_EQ(host_count, RenderProcessHostCount());
 392
 393   // DevTools start in docked mode (no new tab), in a separate process.
 394   chrome::ToggleDevToolsWindow(browser(), DevToolsToggleAction::Inspect());
 395   host_count++;
 396   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 397   EXPECT_EQ(host_count, RenderProcessHostCount());
 398
 399   RenderViewHost* devtools = FindFirstDevToolsHost();
 400   DCHECK(devtools);
 401
 402   // DevTools start in a separate process.
 403   DevToolsWindow::OpenDevToolsWindow(devtools, DevToolsToggleAction::Inspect());
 404   host_count++;
 405   EXPECT_EQ(tab_count, browser()->tab_strip_model()->count());
 406   EXPECT_EQ(host_count, RenderProcessHostCount());
 407
 408   // close docked devtools
 409   content::WindowedNotificationObserver close_observer(
 410       content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
 411       content::Source<content::WebContents>(
 412           WebContents::FromRenderViewHost(devtools)));
 413   chrome::ToggleDevToolsWindow(browser(), DevToolsToggleAction::Toggle());
 414   close_observer.Wait();
 415 }
 416
 417 // This class's goal is to close the browser window when a renderer process has
 418 // crashed. It does so by monitoring WebContents for RenderProcessGone event and
 419 // closing the passed in TabStripModel. This is used in the following test case.
 420 class WindowDestroyer : public content::WebContentsObserver {
 421  public:
 422   WindowDestroyer(content::WebContents* web_contents, TabStripModel* model)
 423       : content::WebContentsObserver(web_contents),
 424         tab_strip_model_(model) {
 425   }
 426
 427   virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE {
 428     // Wait for the window to be destroyed, which will ensure all other
 429     // RenderViewHost objects are deleted before we return and proceed with
 430     // the next iteration of notifications.
 431     content::WindowedNotificationObserver observer(
 432         chrome::NOTIFICATION_BROWSER_CLOSED,
 433         content::NotificationService::AllSources());
 434     tab_strip_model_->CloseAllTabs();
 435     observer.Wait();
 436   }
 437
 438  private:
 439   TabStripModel* tab_strip_model_;
 440
 441   DISALLOW_COPY_AND_ASSIGN(WindowDestroyer);
 442 };
 443
 444 // Test to ensure that while iterating through all listeners in
 445 // RenderProcessHost and invalidating them, we remove them properly and don't
 446 // access already freed objects. See http://crbug.com/255524.
 447 IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest,
 448                        CloseAllTabsDuringProcessDied) {
 449   GURL url(chrome::kChromeUIOmniboxURL);
 450
 451   ui_test_utils::NavigateToURL(browser(), url);
 452   ui_test_utils::NavigateToURLWithDisposition(
 453       browser(), url, NEW_BACKGROUND_TAB,
 454       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
 455
 456   EXPECT_EQ(2, browser()->tab_strip_model()->count());
 457
 458   WebContents* wc1 = browser()->tab_strip_model()->GetWebContentsAt(0);
 459   WebContents* wc2 = browser()->tab_strip_model()->GetWebContentsAt(1);
 460   EXPECT_EQ(wc1->GetRenderProcessHost(), wc2->GetRenderProcessHost());
 461
 462   // Create an object that will close the window on a process crash.
 463   WindowDestroyer destroyer(wc1, browser()->tab_strip_model());
 464
 465   // Use NOTIFICATION_BROWSER_CLOSED instead of NOTIFICATION_WINDOW_CLOSED,
 466   // since the latter is not implemented on OSX and the test will timeout,
 467   // causing it to fail.
 468   content::WindowedNotificationObserver observer(
 469       chrome::NOTIFICATION_BROWSER_CLOSED,
 470       content::NotificationService::AllSources());
 471
 472   // Kill the renderer process, simulating a crash. This should the ProcessDied
 473   // method to be called. Alternatively, RenderProcessHost::OnChannelError can
 474   // be called to directly force a call to ProcessDied.
 475   base::KillProcess(wc1->GetRenderProcessHost()->GetHandle(), -1, true);
 476
 477   observer.Wait();
 478 }