Deliver IPC messages together with SwapCompositorFrame

content/renderer/gpu/queue_message_swap_promise_unittest.cc

Index: content/renderer/gpu/queue_message_swap_promise_unittest.cc
diff --git a/content/renderer/gpu/queue_message_swap_promise_unittest.cc b/content/renderer/gpu/queue_message_swap_promise_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..db8aa625d2bdfcdcf30adb1de2ebd793fbec3e31
--- /dev/null
+++ b/content/renderer/gpu/queue_message_swap_promise_unittest.cc
@@ -0,0 +1,314 @@
+// Copyright 2014 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 "content/renderer/gpu/queue_message_swap_promise.h"
+
+#include <vector>
+
+#include "base/memory/scoped_vector.h"
+#include "cc/base/swap_promise.h"
+#include "content/renderer/gpu/frame_swap_message_queue.h"
+#include "content/renderer/gpu/render_widget_compositor.h"
+#include "content/renderer/render_widget.h"
+#include "content/test/mock_render_process.h"
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_sync_message_filter.h"
+#include "ipc/ipc_test_sink.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace content {
+
+class TestRenderWidget : public RenderWidget {
+ public:
+  using RenderWidget::QueueMessageImpl;
+};
+
+class TestSyncMessageFilter : public IPC::SyncMessageFilter {
+ public:
+  TestSyncMessageFilter() : IPC::SyncMessageFilter(NULL) {}
+
+  virtual bool Send(IPC::Message* message) OVERRIDE {
+    messages_.push_back(message);
+    return true;
+  }
+
+  ScopedVector<IPC::Message>& messages() { return messages_; }
+
+ private:
+  ScopedVector<IPC::Message> messages_;
+};
+
+struct QueueMessageData {
+  MessageDeliveryPolicy policy;
+  bool commit_requested;
+  int source_frame_number;
+};
+
+class QueueMessageSwapPromiseTest : public testing::Test {
+ public:
+  QueueMessageSwapPromiseTest()
+      : frame_swap_message_queue_(new FrameSwapMessageQueue()),
+        sync_message_filter_(new TestSyncMessageFilter()) {
+  }
+
+  virtual ~QueueMessageSwapPromiseTest() {}
+
+  scoped_ptr<cc::SwapPromise> QueueMessageImpl(IPC::Message* msg,
+                                               MessageDeliveryPolicy policy,
+                                               bool commit_requested,
+                                               int source_frame_number) {
+    return TestRenderWidget::QueueMessageImpl(msg,
+                                              policy,
+                                              frame_swap_message_queue_,
+                                              sync_message_filter_,
+                                              commit_requested,
+                                              source_frame_number).Pass();
+  }
+
+  ScopedVector<IPC::Message>& DirectSendMessages() {
+    return sync_message_filter_->messages();
+  }
+
+  ScopedVector<IPC::Message>& NextSwapMessages() {
+    next_swap_messages_.clear();
+    scoped_ptr<FrameSwapMessageQueue::SendMessageScope> send_message_scope =
+        frame_swap_message_queue_->AcquireSendMessageScope();
+    frame_swap_message_queue_->DrainMessages(&next_swap_messages_);
+    return next_swap_messages_;
+  }
+
+  bool ContainsMessage(const ScopedVector<IPC::Message>& messages,
+                       const IPC::Message& message) {
+    if (messages.empty())
+      return false;
+    for (ScopedVector<IPC::Message>::const_iterator i = messages.begin();
+         i != messages.end();
+         ++i) {
+      if ((*i)->type() == message.type())
+        return true;
+    }
+    return false;
+  }
+
+  bool NextSwapHasMessage(const IPC::Message& message) {
+    return ContainsMessage(NextSwapMessages(), message);
+  }
+
+  void QueueMessages(QueueMessageData data[], size_t count) {
+    for (size_t i = 0; i < count; ++i) {
+      messages_.push_back(
+          IPC::Message(0, i + 1, IPC::Message::PRIORITY_NORMAL));
+      promises_.push_back(
+          QueueMessageImpl(new IPC::Message(messages_[i]),
+                           data[i].policy,
+                           data[i].commit_requested,
+                           data[i].source_frame_number).release());
+    }
+  }
+
+  void CleanupPromises() {
+    for(ScopedVector<cc::SwapPromise>::iterator i = promises_.begin();
+        i != promises_.end();
+        ++i) {
+      if (*i)
+        (*i)->DidSwap(NULL);
+    }
+  }
+
+ protected:
+  void VisualStateSwapPromiseDidNotSwap(
+      cc::SwapPromise::DidNotSwapReason reason);
+
+  scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue_;
+  scoped_refptr<TestSyncMessageFilter> sync_message_filter_;
+  std::vector<IPC::Message> messages_;
+  ScopedVector<cc::SwapPromise> promises_;
+
+ private:
+  ScopedVector<IPC::Message> next_swap_messages_;
+
+  DISALLOW_COPY_AND_ASSIGN(QueueMessageSwapPromiseTest);
+};
+
+TEST_F(QueueMessageSwapPromiseTest, NextSwapPolicySchedulesMessageForNextSwap) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP, false, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  ASSERT_TRUE(promises_[0]);
+  EXPECT_TRUE(DirectSendMessages().empty());
+  EXPECT_FALSE(frame_swap_message_queue_->Empty());
+  EXPECT_TRUE(NextSwapHasMessage(messages_[0]));
+
+  CleanupPromises();
+}
+
+TEST_F(QueueMessageSwapPromiseTest, NextSwapPolicyNeedsAtMostOnePromise) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP, false, 1},
+    {MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP, false, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  ASSERT_TRUE(promises_[0]);
+  ASSERT_FALSE(promises_[1]);
+
+  CleanupPromises();
+}
+
+TEST_F(QueueMessageSwapPromiseTest, NextSwapPolicySendsMessageOnNoUpdate) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP, false, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  promises_[0]->DidNotSwap(cc::SwapPromise::COMMIT_NO_UPDATE);
+  EXPECT_TRUE(ContainsMessage(DirectSendMessages(), messages_[0]));
+  EXPECT_TRUE(NextSwapMessages().empty());
+  EXPECT_TRUE(frame_swap_message_queue_->Empty());
+}
+
+TEST_F(QueueMessageSwapPromiseTest, NextSwapPolicySendsMessageOnSwapFails) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP, false, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  promises_[0]->DidNotSwap(cc::SwapPromise::SWAP_FAILS);
+  EXPECT_TRUE(ContainsMessage(DirectSendMessages(), messages_[0]));
+  EXPECT_TRUE(NextSwapMessages().empty());
+  EXPECT_TRUE(frame_swap_message_queue_->Empty());
+}
+
+TEST_F(QueueMessageSwapPromiseTest, NextSwapPolicyRetainsMessageOnCommitFails) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP, false, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  promises_[0]->DidNotSwap(cc::SwapPromise::COMMIT_FAILS);
+  EXPECT_TRUE(DirectSendMessages().empty());
+  EXPECT_FALSE(frame_swap_message_queue_->Empty());
+  EXPECT_TRUE(NextSwapHasMessage(messages_[0]));
+}
+
+TEST_F(QueueMessageSwapPromiseTest, VisualStateDirectSend) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, false, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  ASSERT_FALSE(promises_[0]);
+  EXPECT_FALSE(DirectSendMessages().empty());
+  EXPECT_TRUE(frame_swap_message_queue_->Empty());
+  EXPECT_TRUE(NextSwapMessages().empty());
+}
+
+TEST_F(QueueMessageSwapPromiseTest,
+       VisualStateQueuesMessageWhenCommitRequested) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, true, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  ASSERT_TRUE(promises_[0]);
+  EXPECT_TRUE(DirectSendMessages().empty());
+  EXPECT_FALSE(frame_swap_message_queue_->Empty());
+  EXPECT_TRUE(NextSwapMessages().empty());
+
+  CleanupPromises();
+}
+
+TEST_F(QueueMessageSwapPromiseTest,
+       VisualStateQueuesMessageWhenOtherMessageAlreadyQueued) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, true, 1},
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, true, 1},
+  };
+  QueueMessages(data, arraysize(data));
+
+  EXPECT_TRUE(DirectSendMessages().empty());
+  EXPECT_FALSE(frame_swap_message_queue_->Empty());
+  EXPECT_FALSE(NextSwapHasMessage(messages_[1]));
+
+  CleanupPromises();
+}
+
+TEST_F(QueueMessageSwapPromiseTest, VisualStateSwapPromiseDidSwap) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, true, 1},
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, false, 1},
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, false, 2},
+  };
+  QueueMessages(data, arraysize(data));
+
+  promises_[0]->DidSwap(NULL);
+  ASSERT_FALSE(promises_[1]);
+  ScopedVector<IPC::Message> messages;
+  messages.swap(NextSwapMessages());
+  EXPECT_EQ(2u, messages.size());
+  EXPECT_TRUE(ContainsMessage(messages, messages_[0]));
+  EXPECT_TRUE(ContainsMessage(messages, messages_[1]));
+  EXPECT_FALSE(ContainsMessage(messages, messages_[2]));
+
+  promises_[2]->DidSwap(NULL);
+  messages.swap(NextSwapMessages());
+  EXPECT_EQ(1u, messages.size());
+  EXPECT_TRUE(ContainsMessage(messages, messages_[2]));
+
+  EXPECT_TRUE(DirectSendMessages().empty());
+  EXPECT_TRUE(NextSwapMessages().empty());
+  EXPECT_TRUE(frame_swap_message_queue_->Empty());
+}
+
+void QueueMessageSwapPromiseTest::VisualStateSwapPromiseDidNotSwap(
+    cc::SwapPromise::DidNotSwapReason reason) {
+  QueueMessageData data[] = {
+    /* { policy, commit_requested, source_frame_number } */
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, true, 1},
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, false, 1},
+    {MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE, false, 2},
+  };
+  QueueMessages(data, arraysize(data));
+
+  promises_[0]->DidNotSwap(reason);
+  ASSERT_FALSE(promises_[1]);
+  EXPECT_TRUE(NextSwapMessages().empty());
+  EXPECT_EQ(2u, DirectSendMessages().size());
+  EXPECT_TRUE(ContainsMessage(DirectSendMessages(), messages_[0]));
+  EXPECT_TRUE(ContainsMessage(DirectSendMessages(), messages_[1]));
+  EXPECT_FALSE(ContainsMessage(DirectSendMessages(), messages_[2]));
+
+  promises_[2]->DidNotSwap(reason);
+  EXPECT_TRUE(NextSwapMessages().empty());
+  EXPECT_TRUE(ContainsMessage(DirectSendMessages(), messages_[2]));
+
+  EXPECT_TRUE(NextSwapMessages().empty());
+  EXPECT_TRUE(frame_swap_message_queue_->Empty());
+}
+
+TEST_F(QueueMessageSwapPromiseTest, VisalStateSwapPromiseDidNotSwapNoUpdate) {
+  VisualStateSwapPromiseDidNotSwap(cc::SwapPromise::COMMIT_NO_UPDATE);
+}
+
+TEST_F(QueueMessageSwapPromiseTest,
+       VisalStateSwapPromiseDidNotSwapCommitFails) {
+  VisualStateSwapPromiseDidNotSwap(cc::SwapPromise::COMMIT_FAILS);
+}
+
+TEST_F(QueueMessageSwapPromiseTest, VisalStateSwapPromiseDidNotSwapSwapFails) {
+  VisualStateSwapPromiseDidNotSwap(cc::SwapPromise::SWAP_FAILS);
+}
+
+}  // namespace content