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

remoting/protocol/clipboard_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/clipboard_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(EqualsClipboardEvent, mime_type, data, "") {
+  return arg.mime_type() == mime_type && arg.data() == data;
+}
+
+static ClipboardEvent MakeClipboardEvent(const std::string& mime_type,
+                                         const std::string& data) {
+  ClipboardEvent event;
+  event.set_mime_type(mime_type);
+  event.set_data(data);
+  return event;
+}
+
+// Verify that the filter passes events on correctly to a configured stub.
+TEST(ClipboardFilterTest, EventsPassThroughFilter) {
+  MockClipboardStub clipboard_stub;
+  ClipboardFilter clipboard_filter(&clipboard_stub);
+
+  EXPECT_CALL(clipboard_stub,
+      InjectClipboardEvent(EqualsClipboardEvent("text", "foo")));
+
+  clipboard_filter.InjectClipboardEvent(MakeClipboardEvent("text","foo"));
+}
+
+// Verify that the filter ignores events if disabled.
+TEST(ClipboardFilterTest, IgnoreEventsIfDisabled) {
+  MockClipboardStub clipboard_stub;
+  ClipboardFilter clipboard_filter(&clipboard_stub);
+
+  clipboard_filter.set_enabled(false);
+
+  EXPECT_CALL(clipboard_stub, InjectClipboardEvent(_)).Times(0);
+
+  clipboard_filter.InjectClipboardEvent(MakeClipboardEvent("text","foo"));
+}
+
+// Verify that the filter ignores events if not configured.
+TEST(ClipboardFilterTest, IgnoreEventsIfNotConfigured) {
+  ClipboardFilter clipboard_filter;
+
+  clipboard_filter.InjectClipboardEvent(MakeClipboardEvent("text","foo"));
+}
+
+} // namespace protocol
+} // namespace remoting