Add PPAPI tests for VideoSource and VideoDestination resources.

ppapi/tests/test_video_destination.cc

+// Copyright (c) 2013 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.
+//
+// Tests PPB_VideoDestination_Private interface.
+
+#include "ppapi/tests/test_video_destination.h"
+
+#include <algorithm>
+#include <limits>
+#include <string>
+
+#include "ppapi/c/dev/ppb_testing_dev.h"
+#include "ppapi/cpp/completion_callback.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/private/video_destination_private.h"
+#include "ppapi/cpp/private/video_frame_private.h"
+#include "ppapi/cpp/var.h"
+#include "ppapi/tests/test_utils.h"
+#include "ppapi/tests/testing_instance.h"
+
+REGISTER_TEST_CASE(VideoDestination);
+
+namespace {
+
+const PP_Resource kInvalidResource = 0;
+const PP_Instance kInvalidInstance = 0;
+
+}
+
+TestVideoDestination::TestVideoDestination(TestingInstance* instance)
+    : TestCase(instance),
+      ppb_video_destination_private_interface_(NULL),
+      ppb_core_interface_(NULL),
+      event_(instance_->pp_instance()) {
+}
+
+bool TestVideoDestination::Init() {
+  ppb_video_destination_private_interface_ =
+      static_cast<const PPB_VideoDestination_Private*>(
+          pp::Module::Get()->GetBrowserInterface(
+                                 PPB_VIDEODESTINATION_PRIVATE_INTERFACE));

[palmer, 2013/05/09 23:48:11]

Style nit: I think the standard is to indent only 4 additional spaces.

Same thing in a few places below.

[bbudge, 2013/05/10 00:13:13]

Yeah, I should switch to the clang format soon. Done.
On 2013/05/09 23:48:11, Chromium Palmer wrote:

+  if (!ppb_video_destination_private_interface_)
+    instance_->AppendError(
+                   "PPB_VideoDestination_Private interface not available");
+
+  ppb_core_interface_ = static_cast<const PPB_Core*>(
+      pp::Module::Get()->GetBrowserInterface(PPB_CORE_INTERFACE));
+  if (!ppb_core_interface_)
+    instance_->AppendError("PPB_Core interface not available");
+
+  return ppb_video_destination_private_interface_ && ppb_core_interface_;
+}
+
+TestVideoDestination::~TestVideoDestination() {
+}
+
+void TestVideoDestination::RunTests(const std::string& filter) {
+  RUN_TEST(Create, filter);
+  RUN_TEST(PutFrame, filter);
+}
+
+void TestVideoDestination::HandleMessage(const pp::Var& message_data) {
+  if (message_data.AsString().find("blob:") == 0) {
+    stream_url_ = message_data.AsString();
+    event_.Signal();
+  }
+}
+
+std::string TestVideoDestination::TestCreate() {
+  PP_Resource video_destination;
+  // Creating a destination from an invalid instance returns an invalid
+  // resource.
+  video_destination =
+      ppb_video_destination_private_interface_->Create(kInvalidInstance);
+  ASSERT_EQ(kInvalidResource, video_destination);
+  ASSERT_FALSE(
+      ppb_video_destination_private_interface_->IsVideoDestination(
+                                                    video_destination));
+
+  // Creating a destination from a valid instance returns a valid resource.
+  video_destination =
+      ppb_video_destination_private_interface_->Create(
+                                                    instance_->pp_instance());
+  ASSERT_NE(kInvalidResource, video_destination);
+  ASSERT_TRUE(
+      ppb_video_destination_private_interface_->IsVideoDestination(
+                                                    video_destination));
+
+  ppb_core_interface_->ReleaseResource(video_destination);
+  // Once released, the resource shouldn't be a video destination.
+  ASSERT_FALSE(
+      ppb_video_destination_private_interface_->IsVideoDestination(
+                                                    video_destination));
+
+  PASS();
+}
+
+std::string TestVideoDestination::TestPutFrame() {
+  std::string js_code;
+  js_code += "var test_stream = new webkitMediaStream([]);"
+             "var url = webkitURL.createObjectURL(test_stream);"
+             "var plugin = document.getElementById('plugin');"
+             "plugin.postMessage(url);";
+  instance_->EvalScript(js_code);
+  event_.Wait();
+
+  pp::VideoDestination_Private video_destination(instance_);
+  TestCompletionCallback cc1(instance_->pp_instance(), false);
+  cc1.WaitForResult(video_destination.Open(stream_url_, cc1.GetCallback()));
+  ASSERT_EQ(PP_OK, cc1.result());
+
+  pp::ImageData image_data(instance_,
+                           PP_IMAGEDATAFORMAT_BGRA_PREMUL,
+                           pp::Size(640, 480),
+                           false /* init_to_zero */);
+  pp::VideoFrame_Private video_frame(image_data,
+                                     0.0 /* timestamp */);
+  ASSERT_EQ(PP_OK, video_destination.PutFrame(video_frame));
+
+  video_destination.Close();
+
+  PASS();
+}
+