Add simple unit-tests for KeyEventTracker.

BUG=93552


Review URL: http://codereview.chromium.org/9097009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@118073 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 85 insertions, 0 deletions

diff --git a/remoting/protocol/key_event_tracker_unittest.cc b/remoting/protocol/key_event_tracker_unittest.cc
new file mode 100644
index 0000000..358057d
--- /dev/null
+++ b/remoting/protocol/key_event_tracker_unittest.cc
@@ -0,0 +1,84 @@
+// 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/key_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 {
+
+MATCHER_P2(EqualsKeyEvent, keycode, pressed, "") {
+  return arg.keycode() == keycode && arg.pressed() == pressed;
+}
+
+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 KeyEvent(int keycode, bool pressed) {
+  protocol::KeyEvent event;
+  event.set_keycode(keycode);
+  event.set_pressed(pressed);
+  return event;
+}
+
+static void PressAndRelease(protocol::InputStub* input_stub, int keycode) {
+  input_stub->InjectKeyEvent(KeyEvent(keycode, true));
+  input_stub->InjectKeyEvent(KeyEvent(keycode, false));
+}
+
+// Verify that keys that were pressed and released aren't re-released.
+TEST(KeyEventTrackerTest, NothingToRelease) {
+  MockInputStub mock_stub;
+  protocol::KeyEventTracker key_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)));
+  }
+  PressAndRelease(&key_tracker, 1);
+  PressAndRelease(&key_tracker, 2);
+}
+
+// Verify that keys that were left pressed get released.
+TEST(KeyEventTrackerTest, ReleaseAllKeys) {
+  MockInputStub mock_stub;
+  protocol::KeyEventTracker key_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)));
+  }
+
+  EXPECT_CALL(mock_stub, InjectKeyEvent(EqualsKeyEvent(3, false)))
+      .After(injects);
+
+  key_tracker.InjectKeyEvent(KeyEvent(3, true));
+  PressAndRelease(&key_tracker, 1);
+  PressAndRelease(&key_tracker, 2);
+  key_tracker.ReleaseAllKeys();
+}
+
+}  // namespace remoting
diff --git a/remoting/remoting.gyp b/remoting/remoting.gyp
index f9c6142..b3d9694 100644
--- a/remoting/remoting.gyp
+++ b/remoting/remoting.gyp
@@ -946,6 +946,7 @@
         'protocol/fake_session.h',
         'protocol/jingle_messages_unittest.cc',
         'protocol/jingle_session_unittest.cc',
+        'protocol/key_event_tracker_unittest.cc',
         'protocol/message_decoder_unittest.cc',
         'protocol/message_reader_unittest.cc',
         'protocol/pepper_session_unittest.cc',