Move ClientSession's input logic into separate components.

remoting/protocol/input_event_tracker_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 "remoting/protocol/input_event_tracker.h"
+
+#include "remoting/proto/event.pb.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::_;
+using ::testing::ExpectationSet;
+using ::testing::InSequence;
+
+namespace remoting {
+
+static const protocol::MouseEvent::MouseButton BUTTON_LEFT =
+    protocol::MouseEvent::BUTTON_LEFT;
+static const protocol::MouseEvent::MouseButton BUTTON_RIGHT =
+    protocol::MouseEvent::BUTTON_RIGHT;
+
+MATCHER_P2(EqualsKeyEvent, keycode, pressed, "") {
+  return arg.keycode() == keycode && arg.pressed() == pressed;
+}
+
+MATCHER_P4(EqualsMouseEvent, x, y, button, down, "") {
+  return arg.x() == x && arg.y() == y && arg.button() == button &&
+         arg.button_down() == down;
+}
+
+class MockInputStub : public protocol::InputStub {
+ public:
+  MockInputStub() {}
+
+  MOCK_METHOD1(InjectKeyEvent, void(const protocol::KeyEvent&));
+  MOCK_METHOD1(InjectMouseEvent, void(const protocol::MouseEvent&));
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockInputStub);
+};
+
+static protocol::KeyEvent NewKeyEvent(int keycode, bool pressed) {
+  protocol::KeyEvent event;
+  event.set_keycode(keycode);
+  event.set_pressed(pressed);
+  return event;
+}
+
+static void PressAndReleaseKey(protocol::InputStub* input_stub, int keycode) {
+  input_stub->InjectKeyEvent(NewKeyEvent(keycode, true));
+  input_stub->InjectKeyEvent(NewKeyEvent(keycode, false));
+}
+
+static protocol::MouseEvent NewMouseEvent(int x, int y,
+    protocol::MouseEvent::MouseButton button, bool down) {
+  protocol::MouseEvent event;
+  event.set_x(x);
+  event.set_y(y);
+  event.set_button(button);
+  event.set_button_down(down);
+  return event;
+}
+
+// Verify that keys that were pressed and released aren't re-released.
+TEST(InputEventTrackerTest, NothingToRelease) {
+  MockInputStub mock_stub;
+  protocol::InputEventTracker input_tracker(&mock_stub);
+
+  {
+    InSequence s;
+
+    EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(1, true)));
+    EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(1, false)));
+    EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(2, true)));
+    EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(2, false)));
+
+    EXPECT_CALL(mock_stub,
+        InjectMouseEvent(EqualsMouseEvent(0, 0, BUTTON_LEFT, true)));
+    EXPECT_CALL(mock_stub,
+        InjectMouseEvent(EqualsMouseEvent(0, 0, BUTTON_LEFT, false)));
+  }
+
+  PressAndReleaseKey(&input_tracker, 1);
+  PressAndReleaseKey(&input_tracker, 2);
+
+  input_tracker.InjectMouseEvent(NewMouseEvent(0, 0, BUTTON_LEFT, true));
+  input_tracker.InjectMouseEvent(NewMouseEvent(0, 0, BUTTON_LEFT, false));
+
+  input_tracker.ReleaseAll();
+}
+
+// Verify that keys that were left pressed get released.
+TEST(InputEventTrackerTest, ReleaseAllKeys) {
+  MockInputStub mock_stub;
+  protocol::InputEventTracker input_tracker(&mock_stub);
+  ExpectationSet injects;
+
+  {
+    InSequence s;
+
+    injects += EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(3, true)));
+    injects += EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(1, true)));
+    injects += EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(1, false)));
+    injects += EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(2, true)));
+    injects += EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(2, false)));
+
+    injects += EXPECT_CALL(mock_stub,
+        InjectMouseEvent(EqualsMouseEvent(0, 0, BUTTON_RIGHT, true)));
+    injects += EXPECT_CALL(mock_stub,
+        InjectMouseEvent(EqualsMouseEvent(0, 0, BUTTON_LEFT, true)));
+    injects += EXPECT_CALL(mock_stub,
+        InjectMouseEvent(EqualsMouseEvent(1, 1, BUTTON_LEFT, false)));
+  }
+
+  EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(3, false)))
+      .After(injects);
+  EXPECT_CALL(mock_stub,
+              InjectMouseEvent(EqualsMouseEvent(1, 1, BUTTON_RIGHT, false)))
+      .After(injects);
+
+  input_tracker.InjectKeyEvent(NewKeyEvent(3, true));
+  PressAndReleaseKey(&input_tracker, 1);
+  PressAndReleaseKey(&input_tracker, 2);
+
+  input_tracker.InjectMouseEvent(NewMouseEvent(0, 0, BUTTON_RIGHT, true));
+  input_tracker.InjectMouseEvent(NewMouseEvent(0, 0, BUTTON_LEFT, true));
+  input_tracker.InjectMouseEvent(NewMouseEvent(1, 1, BUTTON_LEFT, false));
+
+  input_tracker.ReleaseAll();
+}
+
+}  // namespace remoting