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/channel_info.h"
   9 #include "components/version_info/version_info.h"
  10 #include "content/public/common/content_switches.h"
  11 #include "media/base/media_switches.h"
  12 #include "net/test/embedded_test_server/embedded_test_server.h"
  13
  14 static const char kMainWebrtcTestHtmlPage[] =
  15     "/webrtc/webrtc_jsep01_test.html";
  16
  17 // This tests the --disable-webrtc-encryption command line flag. Disabling
  18 // encryption should only be possible on certain channels.
  19
  20 // NOTE: The test case for each channel will only be exercised when the browser
  21 // is actually built for that channel. This is not ideal. One can test manually
  22 // by e.g. faking the channel returned in chrome::GetChannel(). It's likely good
  23 // to have the test anyway, even though a failure might not be detected until a
  24 // branch has been promoted to another channel. The unit test for
  25 // ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch tests for
  26 // all channels however.
  27 // TODO(grunell): Test the different channel cases for any build.
  28 class WebRtcDisableEncryptionFlagBrowserTest : public WebRtcTestBase {
  29  public:
  30   WebRtcDisableEncryptionFlagBrowserTest() {}
  31   ~WebRtcDisableEncryptionFlagBrowserTest() override {}
  32
  33   void SetUpInProcessBrowserTestFixture() override {
  34     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
  35   }
  36
  37   void SetUpCommandLine(base::CommandLine* command_line) override {
  38     // This test should run with fake devices.
  39     command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
  40
  41     // Disable encryption with the command line flag.
  42     command_line->AppendSwitch(switches::kDisableWebRtcEncryption);
  43   }
  44
  45  private:
  46   DISALLOW_COPY_AND_ASSIGN(WebRtcDisableEncryptionFlagBrowserTest);
  47 };
  48
  49 // Makes a call and checks that there's encryption or not in the SDP offer.
  50 IN_PROC_BROWSER_TEST_F(WebRtcDisableEncryptionFlagBrowserTest,
  51                        VerifyEncryption) {
  52   if (!OnWinXp())
  53     return;  // Flaky timeout on a webrtc Win XP bot. http://crbug.com/368163.
  54
  55   ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
  56
  57   content::WebContents* left_tab =
  58       OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
  59   content::WebContents* right_tab =
  60       OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
  61
  62   SetupPeerconnectionWithLocalStream(left_tab);
  63   SetupPeerconnectionWithLocalStream(right_tab);
  64
  65   NegotiateCall(left_tab, right_tab);
  66
  67   StartDetectingVideo(left_tab, "remote-view");
  68   StartDetectingVideo(right_tab, "remote-view");
  69
  70   WaitForVideoToPlay(left_tab);
  71   WaitForVideoToPlay(right_tab);
  72
  73   bool should_detect_encryption = true;
  74   version_info::Channel channel = chrome::GetChannel();
  75   if (channel == version_info::Channel::UNKNOWN ||
  76       channel == version_info::Channel::CANARY ||
  77       channel == version_info::Channel::DEV) {
  78     should_detect_encryption = false;
  79   }
  80 #if defined(OS_ANDROID)
  81   if (channel == version_info::Channel::BETA)
  82     should_detect_encryption = false;
  83 #endif
  84
  85   std::string expected_string = should_detect_encryption ?
  86     "crypto-seen" : "no-crypto-seen";
  87
  88   ASSERT_EQ(expected_string,
  89             ExecuteJavascript("hasSeenCryptoInSdp()", left_tab));
  90
  91   HangUp(left_tab);
  92   HangUp(right_tab);
  93 }