chrome/browser/media/chrome_webrtc_disable_encryption_flag_browsertest.cc

   1 // Copyright 2014 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/win/windows_version.h"
   7 #include "chrome/browser/media/webrtc_browsertest_base.h"
   8 #include "chrome/browser/media/webrtc_browsertest_common.h"
   9 #include "chrome/common/chrome_version_info.h"
  10 #include "content/public/common/content_switches.h"
  11 #include "net/test/embedded_test_server/embedded_test_server.h"
  12
  13 static const char kMainWebrtcTestHtmlPage[] =
  14     "/webrtc/webrtc_jsep01_test.html";
  15
  16 using chrome::VersionInfo;
  17
  18 // This tests the --disable-webrtc-encryption command line flag. Disabling
  19 // encryption should only be possible on certain channels.
  20
  21 // NOTE: The test case for each channel will only be exercised when the browser
  22 // is actually built for that channel. This is not ideal. One can test manually
  23 // by e.g. faking the channel returned in VersionInfo::GetChannel(). It's
  24 // likely good to have the test anyway, even though a failure might not be
  25 // detected until a branch has been promoted to another channel. The unit
  26 // test for ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch
  27 // tests for all channels however.
  28 // TODO(grunell): Test the different channel cases for any build.
  29 class WebRtcDisableEncryptionFlagBrowserTest : public WebRtcTestBase {
  30  public:
  31   WebRtcDisableEncryptionFlagBrowserTest() {}
  32   virtual ~WebRtcDisableEncryptionFlagBrowserTest() {}
  33
  34   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
  35     test::PeerConnectionServerRunner::KillAllPeerConnectionServers();
  36     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
  37   }
  38
  39   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
  40     // This test should run with fake devices.
  41     command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
  42
  43     // Disable encryption with the command line flag.
  44     command_line->AppendSwitch(switches::kDisableWebRtcEncryption);
  45   }
  46
  47  protected:
  48   test::PeerConnectionServerRunner peerconnection_server_;
  49
  50  private:
  51   DISALLOW_COPY_AND_ASSIGN(WebRtcDisableEncryptionFlagBrowserTest);
  52 };
  53
  54 // Makes a call and checks that there's encryption or not in the SDP offer.
  55 // TODO(phoglund): this is unreliable on non-webrtc bots because its peer
  56 // connection server could clash with other tests running in parallel,
  57 // therefore only running manually. http://crbug.com/358207.
  58 IN_PROC_BROWSER_TEST_F(WebRtcDisableEncryptionFlagBrowserTest,
  59                        MANUAL_VerifyEncryption) {
  60 // Flaky timeout on a webrtc Win XP bot. http://crbug.com/368163.
  61 #if defined (OS_WIN)
  62   if (base::win::GetVersion() < base::win::VERSION_VISTA)
  63     return;
  64 #endif
  65
  66   ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
  67   ASSERT_TRUE(peerconnection_server_.Start());
  68
  69   content::WebContents* left_tab =
  70       OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
  71   content::WebContents* right_tab =
  72       OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
  73
  74   EstablishCall(left_tab, right_tab);
  75
  76   StartDetectingVideo(left_tab, "remote-view");
  77   StartDetectingVideo(right_tab, "remote-view");
  78
  79   WaitForVideoToPlay(left_tab);
  80   WaitForVideoToPlay(right_tab);
  81
  82   bool should_detect_encryption = true;
  83   VersionInfo::Channel channel = VersionInfo::GetChannel();
  84   if (channel == VersionInfo::CHANNEL_UNKNOWN ||
  85       channel == VersionInfo::CHANNEL_CANARY ||
  86       channel == VersionInfo::CHANNEL_DEV) {
  87     should_detect_encryption = false;
  88   }
  89 #if defined(OS_ANDROID)
  90   if (channel == VersionInfo::CHANNEL_BETA)
  91     should_detect_encryption = false;
  92 #endif
  93
  94   std::string expected_string = should_detect_encryption ?
  95     "crypto-seen" : "no-crypto-seen";
  96
  97   ASSERT_EQ(expected_string,
  98             ExecuteJavascript("hasSeenCryptoInSdp()", left_tab));
  99
 100   HangUp(left_tab);
 101   WaitUntilHangupVerified(left_tab);
 102   WaitUntilHangupVerified(right_tab);
 103
 104   ASSERT_TRUE(peerconnection_server_.Stop());
 105 }