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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/file_util.h"
#include "base/path_service.h"
#include "base/process_util.h"
#include "base/stringprintf.h"
#include "base/time.h"
#include "chrome/browser/api/infobars/infobar_service.h"
#include "chrome/browser/infobars/infobar.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/browser/ui/media_stream_infobar_delegate.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "chrome/test/ui/ui_test.h"
#include "content/public/browser/notification_service.h"
#include "content/public/test/browser_test_utils.h"
#include "net/test/test_server.h"
static const base::FilePath::CharType kPeerConnectionServer[] =
#if defined(OS_WIN)
FILE_PATH_LITERAL("peerconnection_server.exe");
#else
FILE_PATH_LITERAL("peerconnection_server");
#endif
static const char kMainWebrtcTestHtmlPage[] =
"files/webrtc/webrtc_jsep01_test.html";
// Top-level integration test for WebRTC. Requires a real webcam and microphone
// on the running system. This test is not meant to run in the main browser
// test suite since normal tester machines do not have webcams.
class WebrtcBrowserTest : public InProcessBrowserTest {
public:
WebrtcBrowserTest() : peerconnection_server_(0) {}
virtual void SetUp() OVERRIDE {
RunPeerConnectionServer();
InProcessBrowserTest::SetUp();
}
virtual void TearDown() OVERRIDE {
ShutdownPeerConnectionServer();
InProcessBrowserTest::TearDown();
}
virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
// TODO(phoglund): check that user actually has the requisite devices and
// print a nice message if not; otherwise the test just times out which can
// be confusing.
// This test expects real device handling and requires a real webcam / audio
// device; it will not work with fake devices.
EXPECT_FALSE(command_line->HasSwitch(
switches::kUseFakeDeviceForMediaStream));
}
// TODO(phoglund): This ugly poll method is only here while we transition
// the test javascript to just post events when things happen. Right now they
// don't because the webrtc_call.py and other tests use this polling way of
// communicating when we are waiting from an asynchronous event in the
// javascript. This method is meant to emulate WaitUntil in the PyAuto
// framework.
bool UglyPollingWaitUntil(const std::string& javascript,
const std::string& evaluates_to,
content::WebContents* tab_contents) {
base::Time start_time = base::Time::Now();
base::TimeDelta timeout = base::TimeDelta::FromSeconds(20);
std::string result;
while (base::Time::Now() - start_time < timeout) {
result = ExecuteJavascript(javascript, tab_contents);
if (evaluates_to == result)
return true;
}
LOG(ERROR) << "Timed out while waiting for " << javascript <<
" to evaluate to " << evaluates_to << "; last result was '" << result <<
"'";
return false;
}
// Convenience method which executes the provided javascript in the context
// of the provided web contents and returns what it evaluated to.
std::string ExecuteJavascript(const std::string& javascript,
content::WebContents* tab_contents) {
std::string result;
EXPECT_TRUE(content::ExecuteScriptAndExtractString(
tab_contents, javascript, &result));
return result;
}
void GetUserMedia(content::WebContents* tab_contents) {
content::WindowedNotificationObserver infobar_added(
chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_ADDED,
content::NotificationService::AllSources());
// Request user media: this will launch the media stream info bar.
EXPECT_EQ("ok-requested", ExecuteJavascript(
"getUserMedia('{video: true, audio: true}');", tab_contents));
// Wait for the bar to pop up, then accept.
infobar_added.Wait();
content::Details<InfoBarAddedDetails> details(infobar_added.details());
MediaStreamInfoBarDelegate* media_infobar =
details.ptr()->AsMediaStreamInfoBarDelegate();
media_infobar->Accept();
// Wait for WebRTC to call the success callback.
EXPECT_TRUE(UglyPollingWaitUntil("obtainGetUserMediaResult();",
"ok-got-stream",
tab_contents));
}
// Ensures we didn't get any errors asynchronously (e.g. while no javascript
// call from this test was outstanding).
// TODO(phoglund): this becomes obsolete when we switch to communicating with
// the DOM message queue.
void AssertNoAsynchronousErrors(content::WebContents* tab_contents) {
EXPECT_EQ("ok-no-errors",
ExecuteJavascript("getAnyTestFailures()", tab_contents));
}
// The peer connection server lets our two tabs find each other and talk to
// each other (e.g. it is the application-specific "signaling solution").
void ConnectToPeerConnectionServer(const std::string peer_name,
content::WebContents* tab_contents) {
std::string javascript = base::StringPrintf(
"connect('http://localhost:8888', '%s');", peer_name.c_str());
EXPECT_EQ("ok-connected", ExecuteJavascript(javascript, tab_contents));
}
void EstablishCall(content::WebContents* from_tab,
content::WebContents* to_tab) {
EXPECT_EQ("ok-peerconnection-created",
ExecuteJavascript("preparePeerConnection()", from_tab));
EXPECT_EQ("ok-added",
ExecuteJavascript("addLocalStream()", from_tab));
EXPECT_EQ("ok-negotiating",
ExecuteJavascript("negotiateCall()", from_tab));
// Ensure the call gets up on both sides.
EXPECT_TRUE(UglyPollingWaitUntil("getPeerConnectionReadyState()",
"active", from_tab));
EXPECT_TRUE(UglyPollingWaitUntil("getPeerConnectionReadyState()",
"active", to_tab));
}
void StartDetectingVideo(content::WebContents* tab_contents,
const std::string& video_element) {
std::string javascript = base::StringPrintf(
"startDetection('%s', 'frame-buffer', 320, 240)",
video_element.c_str());
EXPECT_EQ("ok-started", ExecuteJavascript(javascript, tab_contents));
}
void WaitForVideo(content::WebContents* tab_contents) {
EXPECT_TRUE(UglyPollingWaitUntil("isVideoPlaying()", "video-playing",
tab_contents));
}
void HangUp(content::WebContents* from_tab) {
EXPECT_EQ("ok-call-hung-up", ExecuteJavascript("hangUp()", from_tab));
}
void WaitUntilHangupVerified(content::WebContents* tab_contents) {
EXPECT_TRUE(UglyPollingWaitUntil("getPeerConnectionReadyState()",
"no-peer-connection", tab_contents));
}
private:
void RunPeerConnectionServer() {
base::FilePath peerconnection_server;
EXPECT_TRUE(PathService::Get(base::DIR_MODULE, &peerconnection_server));
peerconnection_server = peerconnection_server.Append(kPeerConnectionServer);
EXPECT_TRUE(file_util::PathExists(peerconnection_server)) <<
"Missing peerconnection_server. You must build "
"it so it ends up next to the browser test binary.";
EXPECT_TRUE(base::LaunchProcess(
CommandLine(peerconnection_server),
base::LaunchOptions(),
&peerconnection_server_)) << "Failed to launch peerconnection_server.";
}
void ShutdownPeerConnectionServer() {
EXPECT_TRUE(base::KillProcess(peerconnection_server_, 0, false)) <<
"Failed to shut down peerconnection_server!";
}
base::ProcessHandle peerconnection_server_;
};
IN_PROC_BROWSER_TEST_F(WebrtcBrowserTest,
MANUAL_RunsAudioVideoWebRTCCallInTwoTabs) {
EXPECT_TRUE(test_server()->Start());
ui_test_utils::NavigateToURL(
browser(), test_server()->GetURL(kMainWebrtcTestHtmlPage));
content::WebContents* left_tab =
browser()->tab_strip_model()->GetActiveWebContents();
GetUserMedia(left_tab);
chrome::AddBlankTabAt(browser(), -1, true);
content::WebContents* right_tab =
browser()->tab_strip_model()->GetActiveWebContents();
ui_test_utils::NavigateToURL(
browser(), test_server()->GetURL(kMainWebrtcTestHtmlPage));
GetUserMedia(right_tab);
ConnectToPeerConnectionServer("peer 1", left_tab);
ConnectToPeerConnectionServer("peer 2", right_tab);
EstablishCall(left_tab, right_tab);
AssertNoAsynchronousErrors(left_tab);
AssertNoAsynchronousErrors(right_tab);
StartDetectingVideo(left_tab, "remote-view");
StartDetectingVideo(right_tab, "remote-view");
WaitForVideo(left_tab);
WaitForVideo(right_tab);
HangUp(left_tab);
WaitUntilHangupVerified(left_tab);
WaitUntilHangupVerified(right_tab);
AssertNoAsynchronousErrors(left_tab);
AssertNoAsynchronousErrors(right_tab);
}
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