Make sure MediaStreamManager handles requests in order.

content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc

 // 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 <string>
 #include <queue>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
@@ skipping 18 matching lines @@
 #include "media/audio/mock_audio_manager.h"
 #include "media/base/media_switches.h"
 #include "media/video/capture/fake_video_capture_device_factory.h"
 #include "net/url_request/url_request_context.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::DeleteArg;
 using ::testing::DoAll;
+using ::testing::InSequence;
 using ::testing::Return;
 using ::testing::SaveArg;
 
 const int kProcessId = 5;
 const int kRenderId = 6;
 const int kPageRequestId = 7;
 
 namespace content {
 
 class MockMediaStreamDispatcherHost : public MediaStreamDispatcherHost,
@@ skipping 508 matching lines @@
 }
 
 // This test request two streams with video only without waiting for the first
 // stream to be generated before requesting the second.
 // The same device id and session ids are expected.
 TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsWithoutWaiting) {
   StreamOptions options(false, true);
 
   // Generate first stream.
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
+  {
+    InSequence s;
+    EXPECT_CALL(*host_.get(),
+                OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
 
-  // Generate second stream.
-  EXPECT_CALL(*host_.get(),
-              OnStreamGenerated(kRenderId, kPageRequestId + 1, 0, 1));
-
+    // Generate second stream.
+    EXPECT_CALL(*host_.get(),
+                OnStreamGenerated(kRenderId, kPageRequestId + 1, 0, 1));
+  }
   base::RunLoop run_loop1;
   base::RunLoop run_loop2;
   host_->OnGenerateStream(kRenderId, kPageRequestId, options, origin_,
                           run_loop1.QuitClosure());
   host_->OnGenerateStream(kRenderId, kPageRequestId + 1, options, origin_,
                           run_loop2.QuitClosure());
 
   run_loop1.Run();
   run_loop2.Run();
 }
@@ skipping 317 matching lines @@
 TEST_F(MediaStreamDispatcherHostTest, EnumerateVideoDevicesNoAccess) {
   MockResourceContext* mock_resource_context =
       static_cast<MockResourceContext*>(browser_context_.GetResourceContext());
   mock_resource_context->set_camera_access(false);
   EnumerateDevicesAndWaitForResult(kRenderId, kPageRequestId,
                                    MEDIA_DEVICE_VIDEO_CAPTURE);
   EXPECT_TRUE(DoesNotContainLabels(host_->enumerated_devices_));
 }
 
 };  // namespace content