Fix unit tests to enable them testing with the rAF aligned touch input.

content/browser/renderer_host/input/input_router_impl_unittest.cc

 // Copyright 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.
 
 #include "content/browser/renderer_host/input/input_router_impl.h"
 
 #include <math.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <tuple>
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/test/scoped_feature_list.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "content/browser/renderer_host/input/gesture_event_queue.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
 #include "content/browser/renderer_host/input/mock_input_ack_handler.h"
 #include "content/browser/renderer_host/input/mock_input_router_client.h"
 #include "content/common/content_constants_internal.h"
 #include "content/common/edit_command.h"
 #include "content/common/input/synthetic_web_input_event_builders.h"
 #include "content/common/input/touch_action.h"
 #include "content/common/input_messages.h"
 #include "content/common/view_messages.h"
+#include "content/public/common/content_features.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/mock_render_process_host.h"
 #include "content/public/test/test_browser_context.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/base_event_utils.h"
 #include "ui/events/blink/web_input_event_traits.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 
 #if defined(USE_AURA)
 #include "content/browser/renderer_host/ui_events_helper.h"
@@ skipping 93 matching lines @@
   }
 
   return true;
 }
 #endif  // defined(USE_AURA)
 
 }  // namespace
 
 class InputRouterImplTest : public testing::Test {
  public:
-  InputRouterImplTest() {}
+  InputRouterImplTest() { EnableRafAlignedTouchInput(); }
+
   ~InputRouterImplTest() override {}
 
  protected:
   // testing::Test
   void SetUp() override {
     browser_context_.reset(new TestBrowserContext());
     process_.reset(new MockRenderProcessHost(browser_context_.get()));
     client_.reset(new MockInputRouterClient());
     ack_handler_.reset(new MockInputAckHandler());
     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
@@ skipping 182 matching lines @@
     process_->sink().ClearMessages();
     return count;
   }
 
   static void RunTasksAndWait(base::TimeDelta delay) {
     base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE, base::MessageLoop::QuitWhenIdleClosure(), delay);
     base::RunLoop().Run();
   }
 
+  void EnableRafAlignedTouchInput() {
+    feature_list_.InitFromCommandLine(
+        features::kRafAlignedTouchInputEvents.name, "");
+  }
+
+  void DisableRafAlignedTouchInput() {
+    feature_list_.InitFromCommandLine(
+        "", features::kRafAlignedTouchInputEvents.name);
+  }
+
   InputRouterImpl::Config config_;
   std::unique_ptr<MockRenderProcessHost> process_;
   std::unique_ptr<MockInputRouterClient> client_;
   std::unique_ptr<MockInputAckHandler> ack_handler_;
   std::unique_ptr<InputRouterImpl> input_router_;
 
  private:
   base::MessageLoopForUI message_loop_;
   SyntheticWebTouchEvent touch_event_;
 
+  base::test::ScopedFeatureList feature_list_;
   std::unique_ptr<TestBrowserContext> browser_context_;
 };
 
+class InputRouterImplRafAlignedTouchDisabledTest : public InputRouterImplTest {
+ public:
+  void SetUp() override {
+    DisableRafAlignedTouchInput();
+    InputRouterImplTest::SetUp();
+  }
+};
+
 TEST_F(InputRouterImplTest, CoalescesRangeSelection) {
   input_router_->SendInput(std::unique_ptr<IPC::Message>(
       new InputMsg_SelectRange(0, gfx::Point(1, 2), gfx::Point(3, 4))));
   ExpectIPCMessageWithArg2<InputMsg_SelectRange>(
       process_->sink().GetMessageAt(0),
       gfx::Point(1, 2),
       gfx::Point(3, 4));
   EXPECT_EQ(1u, GetSentMessageCountAndResetSink());
 
   // Send two more messages without acking.
@@ skipping 405 matching lines @@
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
 
   // After the final ack, the queue should be empty.
   SendInputEventACK(WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_CONSUMED);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1U, ack_handler_->GetAndResetAckCount());
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 }
 
 // Tests that touch-events are queued properly.
-TEST_F(InputRouterImplTest, TouchEventQueue) {
+TEST_F(InputRouterImplRafAlignedTouchDisabledTest, TouchEventQueue) {
   OnHasTouchEventHandlers(true);
 
   PressTouchPoint(1, 1);
   uint32_t touch_press_event_id = SendTouchEvent();
   EXPECT_TRUE(client_->GetAndResetFilterEventCalled());
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
   EXPECT_FALSE(TouchEventQueueEmpty());
 
   // The second touch should not be sent since one is already in queue.
   MoveTouchPoint(0, 5, 5);
@@ skipping 13 matching lines @@
 
   SendTouchEventACK(WebInputEvent::TouchMove, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_move_event_id);
   EXPECT_TRUE(TouchEventQueueEmpty());
   EXPECT_EQ(1U, ack_handler_->GetAndResetAckCount());
   EXPECT_EQ(WebInputEvent::TouchMove,
             ack_handler_->acked_touch_event().event.type());
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 }
 
+// Tests that touch-events are sent properly.
+TEST_F(InputRouterImplTest, TouchEventQueue) {
+  OnHasTouchEventHandlers(true);
+
+  PressTouchPoint(1, 1);
+  uint32_t touch_press_event_id = SendTouchEvent();
+  EXPECT_TRUE(client_->GetAndResetFilterEventCalled());
+  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_FALSE(TouchEventQueueEmpty());
+
+  // The second touch should be sent right away.
+  MoveTouchPoint(0, 5, 5);
+  uint32_t touch_move_event_id = SendTouchEvent();
+  EXPECT_TRUE(client_->GetAndResetFilterEventCalled());
+  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_FALSE(TouchEventQueueEmpty());
+
+  // Receive an ACK for the first touch-event.
+  SendTouchEventACK(WebInputEvent::TouchStart, INPUT_EVENT_ACK_STATE_CONSUMED,
+                    touch_press_event_id);
+  EXPECT_FALSE(TouchEventQueueEmpty());
+  EXPECT_EQ(1U, ack_handler_->GetAndResetAckCount());
+  EXPECT_EQ(WebInputEvent::TouchStart,
+            ack_handler_->acked_touch_event().event.type());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
+
+  SendTouchEventACK(WebInputEvent::TouchMove, INPUT_EVENT_ACK_STATE_CONSUMED,
+                    touch_move_event_id);
+  EXPECT_TRUE(TouchEventQueueEmpty());
+  EXPECT_EQ(1U, ack_handler_->GetAndResetAckCount());
+  EXPECT_EQ(WebInputEvent::TouchMove,
+            ack_handler_->acked_touch_event().event.type());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
+}
+
 // Tests that the touch-queue is emptied after a page stops listening for touch
 // events and the outstanding ack is received.
 TEST_F(InputRouterImplTest, TouchEventQueueFlush) {
   OnHasTouchEventHandlers(true);
   EXPECT_TRUE(client_->has_touch_handler());
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   EXPECT_TRUE(TouchEventQueueEmpty());
 
   // Send a touch-press event.
   PressTouchPoint(1, 1);
@@ skipping 201 matching lines @@
       WebInputEvent::GestureScrollBegin,
       WebInputEvent::GestureScrollUpdate,
       WebInputEvent::GesturePinchBegin,
       WebInputEvent::GesturePinchUpdate,
       WebInputEvent::GesturePinchEnd,
       WebInputEvent::GestureScrollEnd};
   for (size_t i = 0; i < arraysize(eventTypes); ++i) {
     WebInputEvent::Type type = eventTypes[i];
     if (WebInputEventTraits::ShouldBlockEventStream(GetEventWithType(type))) {
       SimulateGestureEvent(type, blink::WebGestureDeviceTouchscreen);
-      EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+      if (type == WebInputEvent::GestureScrollUpdate)
+        EXPECT_EQ(2U, GetSentMessageCountAndResetSink());
+      else
+        EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
       EXPECT_EQ(0U, ack_handler_->GetAndResetAckCount());
       EXPECT_EQ(1, client_->in_flight_event_count());
       EXPECT_TRUE(HasPendingEvents());
 
       SendInputEventACK(type, INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
       EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
       EXPECT_EQ(1U, ack_handler_->GetAndResetAckCount());
       EXPECT_EQ(0, client_->in_flight_event_count());
       EXPECT_FALSE(HasPendingEvents());
       continue;
@@ skipping 65 matching lines @@
   // their ack disposition have been dispatched.
 
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        blink::WebGestureDeviceTouchscreen);
   ASSERT_EQ(1U, GetSentMessageCountAndResetSink());
   EXPECT_EQ(1U, ack_handler_->GetAndResetAckCount());
   EXPECT_EQ(0, client_->in_flight_event_count());
 
   SimulateGestureEvent(WebInputEvent::GestureScrollUpdate,
                        blink::WebGestureDeviceTouchscreen);
-  ASSERT_EQ(1U, GetSentMessageCountAndResetSink());
+  ASSERT_EQ(2U, GetSentMessageCountAndResetSink());
   EXPECT_EQ(0U, ack_handler_->GetAndResetAckCount());
   EXPECT_EQ(1, client_->in_flight_event_count());
 
   SimulateGestureEvent(WebInputEvent::GestureTapDown,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   EXPECT_EQ(0U, ack_handler_->GetAndResetAckCount());
   EXPECT_EQ(1, client_->in_flight_event_count());
 
   SimulateGestureEvent(WebInputEvent::GestureScrollUpdate,
@@ skipping 231 matching lines @@
   ReleaseTouchPoint(0);
   uint32_t touch_release_event_id2 = SendTouchEvent();
 
   SendTouchEventACK(WebInputEvent::TouchStart, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_press_event_id1);
   SendTouchEventACK(WebInputEvent::TouchMove, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_move_event_id1);
 
   // Ensure touch action is still none, as the next touch start hasn't been
   // acked yet. ScrollBegin and ScrollEnd don't require acks.
-  EXPECT_EQ(3U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(6U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 
   // This allows the next touch sequence to start.
   SendTouchEventACK(WebInputEvent::TouchEnd, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_release_event_id1);
 
   // Ensure touch action has been set to auto, as a new touch sequence has
   // started.
   SendTouchEventACK(WebInputEvent::TouchStart, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_press_event_id2);
   SendTouchEventACK(WebInputEvent::TouchMove, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_move_event_id2);
-  EXPECT_EQ(3U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
   SendTouchEventACK(WebInputEvent::TouchEnd, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_release_event_id2);
 }
 
@@ skipping 19 matching lines @@
   // Sequence 2
   PressTouchPoint(1, 1);
   uint32_t touch_press_event_id2 = SendTouchEvent();
   MoveTouchPoint(0, 50, 50);
   SendTouchEvent();
   ReleaseTouchPoint(0);
   SendTouchEvent();
 
   // Ensure we have touch-action:none. ScrollBegin and ScrollEnd don't require
   // acks.
-  EXPECT_EQ(3U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(6U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 
   SendTouchEventACK(WebInputEvent::TouchEnd, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_release_event_id1);
   SendTouchEventACK(WebInputEvent::TouchStart,
                     INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS,
                     touch_press_event_id2);
 
   // Ensure touch action has been set to auto, as the touch had no consumer.
-  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
 }
 
 // Test that TouchActionFilter::ResetTouchAction is called when the touch
 // handler is removed.
 TEST_F(InputRouterImplTest, TouchActionResetWhenTouchHandlerRemoved) {
   // Touch sequence with touch handler.
   OnHasTouchEventHandlers(true);
   PressTouchPoint(1, 1);
   uint32_t touch_press_event_id = SendTouchEvent();
   MoveTouchPoint(0, 50, 50);
   uint32_t touch_move_event_id = SendTouchEvent();
   OnSetTouchAction(TOUCH_ACTION_NONE);
   ReleaseTouchPoint(0);
   uint32_t touch_release_event_id = SendTouchEvent();
-  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(3U, GetSentMessageCountAndResetSink());
 
   // Ensure we have touch-action:none, suppressing scroll events.
   SendTouchEventACK(WebInputEvent::TouchStart, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_press_event_id);
-  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SendTouchEventACK(WebInputEvent::TouchMove,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED, touch_move_event_id);
-  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 
   SendTouchEventACK(WebInputEvent::TouchEnd, INPUT_EVENT_ACK_STATE_NOT_CONSUMED,
                     touch_release_event_id);
   SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 
@@ skipping 24 matching lines @@
                     touch_press_event_id1);
 
   ReleaseTouchPoint(0);
   uint32_t touch_release_event_id = SendTouchEvent();
 
   // Sequence 2
   PressTouchPoint(1, 1);
   uint32_t touch_press_event_id2 = SendTouchEvent();
 
   // First tap.
-  EXPECT_EQ(2U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(3U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureTapDown,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
 
   // The GestureTapUnconfirmed is converted into a tap, as the touch action is
   // none.
   SimulateGestureEvent(WebInputEvent::GestureTapUnconfirmed,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
   // This test will become invalid if GestureTap stops requiring an ack.
   ASSERT_TRUE(WebInputEventTraits::ShouldBlockEventStream(
       GetEventWithType(WebInputEvent::GestureTap)));
-  EXPECT_EQ(2, client_->in_flight_event_count());
+  EXPECT_EQ(3, client_->in_flight_event_count());
   SendInputEventACK(WebInputEvent::GestureTap,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
-  EXPECT_EQ(1, client_->in_flight_event_count());
+  EXPECT_EQ(2, client_->in_flight_event_count());
 
   // This tap gesture is dropped, since the GestureTapUnconfirmed was turned
   // into a tap.
   SimulateGestureEvent(WebInputEvent::GestureTap,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 
   SendTouchEventACK(WebInputEvent::TouchEnd, INPUT_EVENT_ACK_STATE_CONSUMED,
                     touch_release_event_id);
   SendTouchEventACK(WebInputEvent::TouchStart,
                     INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS,
                     touch_press_event_id2);
 
   // Second Tap.
-  EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
+  EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
   SimulateGestureEvent(WebInputEvent::GestureTapDown,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(1U, GetSentMessageCountAndResetSink());
 
   // Although the touch-action is now auto, the double tap still won't be
   // dispatched, because the first tap occured when the touch-action was none.
   SimulateGestureEvent(WebInputEvent::GestureDoubleTap,
                        blink::WebGestureDeviceTouchscreen);
   // This test will become invalid if GestureDoubleTap stops requiring an ack.
   ASSERT_TRUE(WebInputEventTraits::ShouldBlockEventStream(
@@ skipping 713 matching lines @@
   EXPECT_EQ(80, sent_event->data.flingStart.velocityY);
 
   const WebGestureEvent* filter_event =
       GetFilterWebInputEvent<WebGestureEvent>();
   TestLocationInFilterEvent(filter_event, orig);
   EXPECT_EQ(30, filter_event->data.flingStart.velocityX);
   EXPECT_EQ(40, filter_event->data.flingStart.velocityY);
 }
 
 }  // namespace content