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 "chrome/browser/media/webrtc_browsertest_base.h"
   7 #include "chrome/browser/media/webrtc_browsertest_common.h"
   8 #include "chrome/common/chrome_version_info.h"
   9 #include "content/public/common/content_switches.h"
  10 #include "media/base/media_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   ~WebRtcDisableEncryptionFlagBrowserTest() override {}
  33
  34   void SetUpInProcessBrowserTestFixture() override {
  35     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
  36   }
  37
  38   void SetUpCommandLine(base::CommandLine* command_line) override {
  39     // This test should run with fake devices.
  40     command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
  41
  42     // Disable encryption with the command line flag.
  43     command_line->AppendSwitch(switches::kDisableWebRtcEncryption);
  44   }
  45
  46  private:
  47   DISALLOW_COPY_AND_ASSIGN(WebRtcDisableEncryptionFlagBrowserTest);
  48 };
  49
  50 // Makes a call and checks that there's encryption or not in the SDP offer.
  51 IN_PROC_BROWSER_TEST_F(WebRtcDisableEncryptionFlagBrowserTest,
  52                        VerifyEncryption) {
  53   if (!OnWinXp())
  54     return;  // Flaky timeout on a webrtc Win XP bot. http://crbug.com/368163.
  55
  56   ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
  57
  58   content::WebContents* left_tab =
  59       OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
  60   content::WebContents* right_tab =
  61       OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
  62
  63   SetupPeerconnectionWithLocalStream(left_tab);
  64   SetupPeerconnectionWithLocalStream(right_tab);
  65
  66   NegotiateCall(left_tab, right_tab);
  67
  68   StartDetectingVideo(left_tab, "remote-view");
  69   StartDetectingVideo(right_tab, "remote-view");
  70
  71   WaitForVideoToPlay(left_tab);
  72   WaitForVideoToPlay(right_tab);
  73
  74   bool should_detect_encryption = true;
  75   VersionInfo::Channel channel = VersionInfo::GetChannel();
  76   if (channel == VersionInfo::CHANNEL_UNKNOWN ||
  77       channel == VersionInfo::CHANNEL_CANARY ||
  78       channel == VersionInfo::CHANNEL_DEV) {
  79     should_detect_encryption = false;
  80   }
  81 #if defined(OS_ANDROID)
  82   if (channel == VersionInfo::CHANNEL_BETA)
  83     should_detect_encryption = false;
  84 #endif
  85
  86   std::string expected_string = should_detect_encryption ?
  87     "crypto-seen" : "no-crypto-seen";
  88
  89   ASSERT_EQ(expected_string,
  90             ExecuteJavascript("hasSeenCryptoInSdp()", left_tab));
  91
  92   HangUp(left_tab);
  93   HangUp(right_tab);
  94 }