Plumb firing passive event listeners.

content/renderer/input/non_blocking_event_queue_unittest.cc

Index: content/renderer/input/non_blocking_event_queue_unittest.cc
diff --git a/content/renderer/input/non_blocking_event_queue_unittest.cc b/content/renderer/input/non_blocking_event_queue_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..8953d858ddec53e3bd042d0cf0e7186377f3f472
--- /dev/null
+++ b/content/renderer/input/non_blocking_event_queue_unittest.cc
@@ -0,0 +1,120 @@
+// Copyright 2016 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 <stddef.h>
+
+#include <new>
+#include <utility>
+#include <vector>
+
+#include "base/macros.h"
+#include "build/build_config.h"
+#include "content/common/input/synthetic_web_input_event_builders.h"
+#include "content/renderer/input/non_blocking_event_queue.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using blink::WebInputEvent;
+using blink::WebMouseEvent;
+using blink::WebMouseWheelEvent;
+using blink::WebTouchEvent;
+
+namespace content {
+namespace {
+
+const int kTestRoutingID = 13;
+}
+
+class NonBlockingEventQueueTest : public testing::Test,
+                                  public NonBlockingEventQueueClient {
+ public:
+  NonBlockingEventQueueTest() : queue_(kTestRoutingID, this) {}
+
+  void SendNonBlockingEvent(int routing_id,
+                            const blink::WebInputEvent* event,
+                            const ui::LatencyInfo& latency) override {
+    ASSERT_EQ(kTestRoutingID, routing_id);
+    const unsigned char* eventPtr =
+        reinterpret_cast<const unsigned char*>(event);
+    last_event_.assign(eventPtr, eventPtr + event->size);
+  }
+
+  WebInputEventQueue<MouseWheelEventWithLatencyInfo>& wheel_event_queue() {
+    return queue_.wheel_events_;
+  }
+
+  WebInputEventQueue<TouchEventWithLatencyInfo>& touch_event_queue() {
+    return queue_.touch_events_;
+  }
+
+ protected:
+  NonBlockingEventQueue queue_;
+  std::vector<unsigned char> last_event_;
+};
+
+TEST_F(NonBlockingEventQueueTest, NonBlockingWheel) {
+  WebMouseWheelEvent kEvents[4] = {
+      SyntheticWebMouseWheelEventBuilder::Build(10, 10, 0, 53, 0, false),
+      SyntheticWebMouseWheelEventBuilder::Build(20, 20, 0, 53, 0, false),
+      SyntheticWebMouseWheelEventBuilder::Build(30, 30, 0, 53, 1, false),
+      SyntheticWebMouseWheelEventBuilder::Build(30, 30, 0, 53, 1, false),
+  };
+
+  ASSERT_EQ(WebInputEventQueueState::ITEM_NOT_PENDING,
+            wheel_event_queue().state());
+  queue_.HandleEvent(&kEvents[0], ui::LatencyInfo());
+  ASSERT_EQ(WebInputEventQueueState::ITEM_PENDING, wheel_event_queue().state());
+  queue_.HandleEvent(&kEvents[1], ui::LatencyInfo());
+  ASSERT_EQ(kEvents[0].size, last_event_.size());
+  ASSERT_TRUE(memcmp(&last_event_[0], &kEvents[0], kEvents[0].size) == 0);
+  queue_.EventHandled(blink::WebInputEvent::MouseWheel);
+  ASSERT_EQ(kEvents[1].size, last_event_.size());
+  ASSERT_TRUE(memcmp(&last_event_[0], &kEvents[1], kEvents[1].size) == 0);
+  ASSERT_EQ(WebInputEventQueueState::ITEM_PENDING, wheel_event_queue().state());
+  queue_.EventHandled(blink::WebInputEvent::MouseWheel);
+  ASSERT_EQ(WebInputEventQueueState::ITEM_NOT_PENDING,
+            wheel_event_queue().state());
+
+  // Ensure that coalescing takes place.
+  queue_.HandleEvent(&kEvents[0], ui::LatencyInfo());
+  queue_.HandleEvent(&kEvents[2], ui::LatencyInfo());
+  queue_.HandleEvent(&kEvents[3], ui::LatencyInfo());
+  ASSERT_EQ(1u, wheel_event_queue().size());
+  ASSERT_EQ(WebInputEventQueueState::ITEM_PENDING, wheel_event_queue().state());
+}
+
+TEST_F(NonBlockingEventQueueTest, NonBlockingTouch) {
+  SyntheticWebTouchEvent kEvents[4];
+  kEvents[0].PressPoint(10, 10);
+  kEvents[1].PressPoint(10, 10);
+  kEvents[1].modifiers = 1;
+  kEvents[1].MovePoint(0, 20, 20);
+  kEvents[2].PressPoint(10, 10);
+  kEvents[2].MovePoint(0, 30, 30);
+  kEvents[3].PressPoint(10, 10);
+  kEvents[3].MovePoint(0, 35, 35);
+
+  ASSERT_EQ(WebInputEventQueueState::ITEM_NOT_PENDING,
+            touch_event_queue().state());
+  queue_.HandleEvent(&kEvents[0], ui::LatencyInfo());
+  ASSERT_EQ(WebInputEventQueueState::ITEM_PENDING, touch_event_queue().state());
+  queue_.HandleEvent(&kEvents[1], ui::LatencyInfo());
+  ASSERT_EQ(kEvents[0].size, last_event_.size());
+  ASSERT_TRUE(memcmp(&last_event_[0], &kEvents[0], kEvents[0].size) == 0);
+  queue_.EventHandled(blink::WebInputEvent::TouchStart);
+  ASSERT_EQ(kEvents[1].size, last_event_.size());
+  ASSERT_TRUE(memcmp(&last_event_[0], &kEvents[1], kEvents[1].size) == 0);
+  ASSERT_EQ(WebInputEventQueueState::ITEM_PENDING, touch_event_queue().state());
+  queue_.EventHandled(blink::WebInputEvent::TouchMove);
+  ASSERT_EQ(WebInputEventQueueState::ITEM_NOT_PENDING,
+            touch_event_queue().state());
+
+  // Ensure that coalescing takes place.
+  queue_.HandleEvent(&kEvents[0], ui::LatencyInfo());
+  queue_.HandleEvent(&kEvents[2], ui::LatencyInfo());
+  queue_.HandleEvent(&kEvents[3], ui::LatencyInfo());
+  ASSERT_EQ(1u, touch_event_queue().size());
+  ASSERT_EQ(WebInputEventQueueState::ITEM_PENDING, touch_event_queue().state());
+}
+
+}  // namespace content