Allow input & clipboard filters to be disabled without NULLing target stub.

remoting/protocol/input_filter_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_filter.h"
+
+#include "remoting/proto/event.pb.h"
+#include "remoting/protocol/protocol_mock_objects.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::_;
+
+namespace remoting {
+namespace protocol {
+
+MATCHER_P2(EqualsKeyEvent, usb_keycode, pressed, "") {
+  return arg.usb_keycode() == static_cast<uint32>(usb_keycode) &&
+         arg.pressed() == pressed;
+}
+
+MATCHER_P2(EqualsMouseMoveEvent, x, y, "") {
+  return arg.x() == x && arg.y() == y;
+}
+
+static KeyEvent NewKeyEvent(uint32 usb_keycode, bool pressed) {
+  KeyEvent event;
+  event.set_usb_keycode(usb_keycode);
+  event.set_pressed(pressed);
+  return event;
+}
+
+static MouseEvent MouseMoveEvent(int x, int y) {
+  MouseEvent event;
+  event.set_x(x);
+  event.set_y(y);
+  return event;
+}
+
+static void InjectTestSequence(protocol::InputStub* input_stub) {
+  // Inject a key event.
+  input_stub->InjectKeyEvent(NewKeyEvent(0, true));
+  input_stub->InjectKeyEvent(NewKeyEvent(0, false));
+
+  // Inject mouse movemement.
+  input_stub->InjectMouseEvent(MouseMoveEvent(10, 20));
+}
+
+// Verify that the filter passes events on correctly to a configured stub.
+TEST(InputFilterTest, EventsPassThroughFilter) {
+  MockInputStub input_stub;
+  InputFilter input_filter(&input_stub);
+
+  EXPECT_CALL(input_stub, InjectKeyEvent(EqualsKeyEvent(0, true)));
+  EXPECT_CALL(input_stub, InjectKeyEvent(EqualsKeyEvent(0, false)));
+  EXPECT_CALL(input_stub, InjectMouseEvent(EqualsMouseMoveEvent(10, 20)));
+
+  InjectTestSequence(&input_filter);
+}
+
+// Verify that the filter ignores events if disabled.
+TEST(InputFilterTest, IgnoreEventsIfDisabled) {
+  MockInputStub input_stub;
+  InputFilter input_filter(&input_stub);
+
+  input_filter.set_enabled(false);
+
+  EXPECT_CALL(input_stub, InjectKeyEvent(_)).Times(0);
+  EXPECT_CALL(input_stub, InjectMouseEvent(_)).Times(0);
+
+  InjectTestSequence(&input_filter);
+}
+
+// Verify that the filter ignores events if not configured.
+TEST(InputFilterTest, IgnoreEventsIfNotConfigured) {
+  InputFilter input_filter;
+
+  InjectTestSequence(&input_filter);
+}
+
+} // namespace protocol
+} // namespace remoting