src/chrome/browser/media/chrome_webrtc_apprtc_browsertest.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 "base/command_line.h"
   6 #include "base/files/file_enumerator.h"
   7 #include "base/path_service.h"
   8 #include "base/process/launch.h"
   9 #include "base/rand_util.h"
  10 #include "base/strings/stringprintf.h"
  11 #include "base/win/windows_version.h"
  12 #include "chrome/browser/browser_process.h"
  13 #include "chrome/browser/media/webrtc_browsertest_base.h"
  14 #include "chrome/browser/media/webrtc_browsertest_common.h"
  15 #include "chrome/browser/ui/browser.h"
  16 #include "chrome/browser/ui/browser_tabstrip.h"
  17 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  18 #include "chrome/common/chrome_switches.h"
  19 #include "chrome/test/base/ui_test_utils.h"
  20 #include "content/public/test/browser_test_utils.h"
  21 #include "media/base/media_switches.h"
  22 #include "net/test/python_utils.h"
  23 #include "ui/gl/gl_switches.h"
  24
  25 // You need this solution to run this test. The solution will download appengine
  26 // and the apprtc code for you.
  27 const char kAdviseOnGclientSolution[] =
  28     "You need to add this solution to your .gclient to run this test:\n"
  29     "{\n"
  30     "  \"name\"        : \"webrtc.DEPS\",\n"
  31     "  \"url\"         : \"svn://svn.chromium.org/chrome/trunk/deps/"
  32     "third_party/webrtc/webrtc.DEPS\",\n"
  33     "}";
  34 const char kTitlePageOfAppEngineAdminPage[] = "Instances";
  35
  36
  37 // WebRTC-AppRTC integration test. Requires a real webcam and microphone
  38 // on the running system. This test is not meant to run in the main browser
  39 // test suite since normal tester machines do not have webcams. Chrome will use
  40 // its fake camera for both tests, but Firefox will use the real webcam in the
  41 // Firefox interop test. Thus, this test must on a machine with a real webcam.
  42 //
  43 // This test will bring up a AppRTC instance on localhost and verify that the
  44 // call gets up when connecting to the same room from two tabs in a browser.
  45 class WebRtcApprtcBrowserTest : public WebRtcTestBase {
  46  public:
  47   WebRtcApprtcBrowserTest()
  48       : dev_appserver_(base::kNullProcessHandle),
  49         firefox_(base::kNullProcessHandle) {
  50   }
  51
  52   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
  53     EXPECT_FALSE(command_line->HasSwitch(switches::kUseFakeUIForMediaStream));
  54
  55     // The video playback will not work without a GPU, so force its use here.
  56     command_line->AppendSwitch(switches::kUseGpuInTests);
  57     CommandLine::ForCurrentProcess()->AppendSwitch(
  58         switches::kUseFakeDeviceForMediaStream);
  59   }
  60
  61   virtual void TearDown() OVERRIDE {
  62     // Kill any processes we may have brought up.
  63     if (dev_appserver_ != base::kNullProcessHandle)
  64       base::KillProcess(dev_appserver_, 0, false);
  65     // TODO(phoglund): Find some way to shut down Firefox cleanly on Windows.
  66     if (firefox_ != base::kNullProcessHandle)
  67       base::KillProcess(firefox_, 0, false);
  68   }
  69
  70  protected:
  71   bool LaunchApprtcInstanceOnLocalhost() {
  72     base::FilePath appengine_dev_appserver =
  73         GetSourceDir().Append(
  74             FILE_PATH_LITERAL("../google_appengine/dev_appserver.py"));
  75     if (!base::PathExists(appengine_dev_appserver)) {
  76       LOG(ERROR) << "Missing appengine sdk at " <<
  77           appengine_dev_appserver.value() << ". " << kAdviseOnGclientSolution;
  78       return false;
  79     }
  80
  81     base::FilePath apprtc_dir =
  82         GetSourceDir().Append(FILE_PATH_LITERAL("out/apprtc"));
  83     if (!base::PathExists(apprtc_dir)) {
  84       LOG(ERROR) << "Missing AppRTC code at " <<
  85           apprtc_dir.value() << ". " << kAdviseOnGclientSolution;
  86       return false;
  87     }
  88
  89     CommandLine command_line(CommandLine::NO_PROGRAM);
  90     EXPECT_TRUE(GetPythonCommand(&command_line));
  91
  92     command_line.AppendArgPath(appengine_dev_appserver);
  93     command_line.AppendArgPath(apprtc_dir);
  94     command_line.AppendArg("--port=9999");
  95     command_line.AppendArg("--admin_port=9998");
  96     command_line.AppendArg("--skip_sdk_update_check");
  97
  98     VLOG(1) << "Running " << command_line.GetCommandLineString();
  99     return base::LaunchProcess(command_line, base::LaunchOptions(),
 100                                &dev_appserver_);
 101   }
 102
 103   bool LocalApprtcInstanceIsUp() {
 104     // Load the admin page and see if we manage to load it right.
 105     ui_test_utils::NavigateToURL(browser(), GURL("localhost:9998"));
 106     content::WebContents* tab_contents =
 107         browser()->tab_strip_model()->GetActiveWebContents();
 108     std::string javascript =
 109         "window.domAutomationController.send(document.title)";
 110     std::string result;
 111     if (!content::ExecuteScriptAndExtractString(tab_contents, javascript,
 112                                                 &result))
 113       return false;
 114
 115     return result == kTitlePageOfAppEngineAdminPage;
 116   }
 117
 118   bool WaitForCallToComeUp(content::WebContents* tab_contents) {
 119     // Apprtc will set remoteVideo.style.opacity to 1 when the call comes up.
 120     std::string javascript =
 121         "window.domAutomationController.send(remoteVideo.style.opacity)";
 122     return test::PollingWaitUntil(javascript, "1", tab_contents);
 123   }
 124
 125   bool EvalInJavascriptFile(content::WebContents* tab_contents,
 126                             const base::FilePath& path) {
 127     std::string javascript;
 128     if (!ReadFileToString(path, &javascript)) {
 129       LOG(ERROR) << "Missing javascript code at " << path.value() << ".";
 130       return false;
 131     }
 132
 133     if (!content::ExecuteScript(tab_contents, javascript)) {
 134       LOG(ERROR) << "Failed to execute the following javascript: " <<
 135           javascript;
 136       return false;
 137     }
 138     return true;
 139   }
 140
 141   bool DetectRemoteVideoPlaying(content::WebContents* tab_contents) {
 142     if (!EvalInJavascriptFile(tab_contents, GetSourceDir().Append(
 143         FILE_PATH_LITERAL("chrome/test/data/webrtc/test_functions.js"))))
 144       return false;
 145     if (!EvalInJavascriptFile(tab_contents, GetSourceDir().Append(
 146         FILE_PATH_LITERAL("chrome/test/data/webrtc/video_detector.js"))))
 147       return false;
 148
 149     // The remote video tag is called remoteVideo in the AppRTC code.
 150     StartDetectingVideo(tab_contents, "remoteVideo");
 151     WaitForVideoToPlay(tab_contents);
 152     return true;
 153   }
 154
 155   base::FilePath GetSourceDir() {
 156     base::FilePath source_dir;
 157     PathService::Get(base::DIR_SOURCE_ROOT, &source_dir);
 158     return source_dir;
 159   }
 160
 161   bool LaunchFirefoxWithUrl(const GURL& url) {
 162     base::FilePath firefox_binary =
 163         GetSourceDir().Append(
 164             FILE_PATH_LITERAL("../firefox-nightly/firefox/firefox"));
 165     if (!base::PathExists(firefox_binary)) {
 166       LOG(ERROR) << "Missing firefox binary at " <<
 167           firefox_binary.value() << ". " << kAdviseOnGclientSolution;
 168       return false;
 169     }
 170     base::FilePath firefox_launcher =
 171         GetSourceDir().Append(
 172             FILE_PATH_LITERAL("../webrtc.DEPS/run_firefox_webrtc.py"));
 173     if (!base::PathExists(firefox_launcher)) {
 174       LOG(ERROR) << "Missing firefox launcher at " <<
 175           firefox_launcher.value() << ". " << kAdviseOnGclientSolution;
 176       return false;
 177     }
 178
 179     CommandLine command_line(firefox_launcher);
 180     command_line.AppendSwitchPath("--binary", firefox_binary);
 181     command_line.AppendSwitchASCII("--webpage", url.spec());
 182
 183     VLOG(1) << "Running " << command_line.GetCommandLineString();
 184     return base::LaunchProcess(command_line, base::LaunchOptions(),
 185                                &firefox_);
 186   }
 187
 188   bool HasWebcamOnSystem() {
 189 #if defined(OS_LINUX)
 190     // Implementation note: normally we would be able to figure this out with
 191     // MediaStreamTrack.getSources, but we can't ask Chrome since it runs in
 192     // fake device mode where it will not enumerate webcams on the system.
 193     // Therefore, look for /dev/video* entries directly since this test only
 194     // runs on Linux for now anyway.
 195     base::FileEnumerator dev_video(base::FilePath(FILE_PATH_LITERAL("/dev")),
 196                                    false, base::FileEnumerator::FILES,
 197                                    FILE_PATH_LITERAL("video*"));
 198     return !dev_video.Next().empty();
 199 #endif
 200     NOTREACHED();
 201     return false;
 202   }
 203
 204  private:
 205   base::ProcessHandle dev_appserver_;
 206   base::ProcessHandle firefox_;
 207 };
 208
 209 IN_PROC_BROWSER_TEST_F(WebRtcApprtcBrowserTest, MANUAL_WorksOnApprtc) {
 210   // TODO(mcasas): Remove Win version filtering when this bug gets fixed:
 211   // http://code.google.com/p/webrtc/issues/detail?id=2703
 212 #if defined(OS_WIN)
 213   if (base::win::GetVersion() < base::win::VERSION_VISTA)
 214     return;
 215 #endif
 216   DetectErrorsInJavaScript();
 217   ASSERT_TRUE(LaunchApprtcInstanceOnLocalhost());
 218   while (!LocalApprtcInstanceIsUp())
 219     VLOG(1) << "Waiting for AppRTC to come up...";
 220
 221   GURL room_url = GURL(base::StringPrintf("localhost:9999?r=room_%d",
 222                                           base::RandInt(0, 65536)));
 223
 224   chrome::AddTabAt(browser(), GURL(), -1, true);
 225   content::WebContents* left_tab = OpenPageAndAcceptUserMedia(room_url);
 226   chrome::AddTabAt(browser(), GURL(), -1, true);
 227   content::WebContents* right_tab = OpenPageAndAcceptUserMedia(room_url);
 228
 229   ASSERT_TRUE(WaitForCallToComeUp(left_tab));
 230   ASSERT_TRUE(WaitForCallToComeUp(right_tab));
 231
 232   ASSERT_TRUE(DetectRemoteVideoPlaying(left_tab));
 233   ASSERT_TRUE(DetectRemoteVideoPlaying(right_tab));
 234 }
 235
 236 #if defined(OS_LINUX)
 237 #define MAYBE_MANUAL_FirefoxApprtcInteropTest MANUAL_FirefoxApprtcInteropTest
 238 #else
 239 // Not implemented yet on Windows and Mac.
 240 #define MAYBE_MANUAL_FirefoxApprtcInteropTest DISABLED_MANUAL_FirefoxApprtcInteropTest
 241 #endif
 242
 243 IN_PROC_BROWSER_TEST_F(WebRtcApprtcBrowserTest,
 244                        MAYBE_MANUAL_FirefoxApprtcInteropTest) {
 245   // Disabled on Win XP: http://code.google.com/p/webrtc/issues/detail?id=2703.
 246 #if defined(OS_WIN)
 247   if (base::win::GetVersion() < base::win::VERSION_VISTA)
 248     return;
 249 #endif
 250   if (!HasWebcamOnSystem()) {
 251     LOG(INFO)
 252         << "Didn't find a webcam on the system; skipping test since Firefox "
 253         << "needs to be able to acquire a webcam.";
 254     return;
 255   }
 256
 257   DetectErrorsInJavaScript();
 258   ASSERT_TRUE(LaunchApprtcInstanceOnLocalhost());
 259   while (!LocalApprtcInstanceIsUp())
 260     VLOG(1) << "Waiting for AppRTC to come up...";
 261
 262   GURL room_url = GURL(base::StringPrintf("http://localhost:9999?r=room_%d",
 263                                           base::RandInt(0, 65536)));
 264   content::WebContents* chrome_tab = OpenPageAndAcceptUserMedia(room_url);
 265
 266   ASSERT_TRUE(LaunchFirefoxWithUrl(room_url));
 267
 268   ASSERT_TRUE(WaitForCallToComeUp(chrome_tab));
 269
 270   // Ensure Firefox manages to send video our way.
 271   ASSERT_TRUE(DetectRemoteVideoPlaying(chrome_tab));
 272 }