1 // Copyright 2017 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/test/scoped_feature_list.h"
7 #include "build/build_config.h"
8 #include "content/browser/webrtc/webrtc_webcam_browsertest.h"
9 #include "content/public/browser/browser_child_process_host.h"
10 #include "content/public/browser/video_capture_service.h"
11 #include "content/public/common/child_process_host.h"
12 #include "content/public/common/content_features.h"
13 #include "content/public/common/content_switches.h"
14 #include "content/public/test/browser_test_utils.h"
15 #include "content/public/test/content_browser_test_utils.h"
16 #include "content/shell/browser/shell.h"
17 #include "media/base/media_switches.h"
18 #include "mojo/public/cpp/bindings/remote.h"
19 #include "net/test/embedded_test_server/embedded_test_server.h"
20 #include "services/video_capture/public/mojom/testing_controls.mojom.h"
21
22 namespace content {
23
24 namespace {
25
26 static const char kVideoCaptureHtmlFile[] = "/media/video_capture_test.html";
27 static const char kStartVideoCaptureAndVerifySize[] =
28 "startVideoCaptureAndVerifySize(320, 200)";
29 static const char kWaitForVideoToTurnBlack[] = "waitForVideoToTurnBlack()";
30 static const char kVerifyHasReceivedTrackEndedEvent[] =
31 "verifyHasReceivedTrackEndedEvent()";
32
33 } // anonymous namespace
34
35 // Integration test that exercises video capture functionality from the
36 // JavaScript level.
37 class WebRtcVideoCaptureBrowserTest : public ContentBrowserTest {
38 protected:
WebRtcVideoCaptureBrowserTest()39 WebRtcVideoCaptureBrowserTest() {
40 scoped_feature_list_.InitAndEnableFeature(features::kMojoVideoCapture);
41 }
42
~WebRtcVideoCaptureBrowserTest()43 ~WebRtcVideoCaptureBrowserTest() override {}
44
SetUpCommandLine(base::CommandLine * command_line)45 void SetUpCommandLine(base::CommandLine* command_line) override {
46 command_line->AppendSwitch(switches::kUseFakeUIForMediaStream);
47 base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
48 switches::kEnableBlinkFeatures, "GetUserMedia");
49 }
50
SetUp()51 void SetUp() override {
52 ASSERT_TRUE(embedded_test_server()->InitializeAndListen());
53 EnablePixelOutput();
54 embedded_test_server()->StartAcceptingConnections();
55 ContentBrowserTest::SetUp();
56 }
57
58 private:
59 base::test::ScopedFeatureList scoped_feature_list_;
60
61 DISALLOW_COPY_AND_ASSIGN(WebRtcVideoCaptureBrowserTest);
62 };
63
IN_PROC_BROWSER_TEST_F(WebRtcVideoCaptureBrowserTest,RecoverFromCrashInVideoCaptureProcess)64 IN_PROC_BROWSER_TEST_F(WebRtcVideoCaptureBrowserTest,
65 RecoverFromCrashInVideoCaptureProcess) {
66 // This test only makes sense if the video capture service runs in a
67 // separate process.
68 if (!features::IsVideoCaptureServiceEnabledForOutOfProcess())
69 return;
70
71 GURL url(embedded_test_server()->GetURL(kVideoCaptureHtmlFile));
72 EXPECT_TRUE(NavigateToURL(shell(), url));
73
74 std::string result;
75 // Start video capture and wait until it started rendering
76 ASSERT_TRUE(ExecuteScriptAndExtractString(
77 shell(), kStartVideoCaptureAndVerifySize, &result));
78 ASSERT_EQ("OK", result);
79
80 // Simulate crash in video capture process
81 mojo::Remote<video_capture::mojom::TestingControls> service_controls;
82 GetVideoCaptureService().BindControlsForTesting(
83 service_controls.BindNewPipeAndPassReceiver());
84 service_controls->Crash();
85
86 // Wait for video element to turn black
87 ASSERT_TRUE(ExecuteScriptAndExtractString(shell(), kWaitForVideoToTurnBlack,
88 &result));
89 ASSERT_EQ("OK", result);
90 ASSERT_TRUE(ExecuteScriptAndExtractString(
91 shell(), kVerifyHasReceivedTrackEndedEvent, &result));
92 ASSERT_EQ("OK", result);
93
94 // Start capturing again and expect it to work.
95 ASSERT_TRUE(ExecuteScriptAndExtractString(
96 shell(), kStartVideoCaptureAndVerifySize, &result));
97 ASSERT_EQ("OK", result);
98 }
99
100 } // namespace content
101