text: // Copyright 2010-2021, Google Inc.
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  #include "win32/base/indicator_visibility_tracker.h"
  
  #include <memory>
  
  #include "base/clock.h"
  #include "base/clock_mock.h"
  #include "testing/base/public/googletest.h"
  #include "testing/base/public/gunit.h"
  
  namespace mozc {
  namespace win32 {
  namespace {
  
  const uint64 kWaitDuration = 500;  // msec
  const VirtualKey AKey = VirtualKey::FromVirtualKey('A');
  
  class IndicatorVisibilityTrackerTest : public testing::Test {
   protected:
    virtual void SetUp() {
      clock_mock_.reset(new ClockMock(0, 0));
      // 1 kHz (Accuracy = 1msec)
      clock_mock_->SetFrequency(1000uLL);
      Clock::SetClockForUnitTest(clock_mock_.get());
    }
  
    virtual void TearDown() { Clock::SetClockForUnitTest(nullptr); }
  
    void PutForwardMilliseconds(uint64 milli_sec) {
      clock_mock_->PutClockForwardByTicks(milli_sec);
    }
  
   private:
    std::unique_ptr<ClockMock> clock_mock_;
  };
  
  TEST_F(IndicatorVisibilityTrackerTest, BasicTest) {
    IndicatorVisibilityTracker tracker;
  
    EXPECT_FALSE(tracker.IsVisible()) << "Should be hidden by default.";
  
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI, tracker.OnChangeInputMode());
    EXPECT_TRUE(tracker.IsVisible());  // ChangeInputMode -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kNothing, tracker.OnChangeInputMode());
    EXPECT_TRUE(tracker.IsVisible());  // ChangeInputMode -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI,
              tracker.OnDissociateContext());
    EXPECT_FALSE(tracker.IsVisible());  // KillFocus -> Invisible
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI, tracker.OnChangeInputMode());
    EXPECT_TRUE(tracker.IsVisible());  // ChangeInputMode -> Visible
  
    // 0 msec later -> WindowMove -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kNothing,
              tracker.OnMoveFocusedWindow());
    EXPECT_TRUE(tracker.IsVisible());
  
    // |kWaitDuration/2| msec later -> WindowMove -> Visible
    PutForwardMilliseconds(kWaitDuration / 2);
    EXPECT_EQ(IndicatorVisibilityTracker::kNothing,
              tracker.OnMoveFocusedWindow());
    EXPECT_TRUE(tracker.IsVisible());
  
    // |kWaitDuration*2| msec later -> WindowMove -> Invisible
    PutForwardMilliseconds(kWaitDuration * 2);
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI,
              tracker.OnMoveFocusedWindow());
    EXPECT_FALSE(tracker.IsVisible());
  
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI, tracker.OnChangeInputMode());
    EXPECT_TRUE(tracker.IsVisible());  // ChangeInputMode -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI,
              tracker.OnTestKey(AKey, true, false));
    EXPECT_FALSE(tracker.IsVisible());  // TestKeyDown -> Invisible
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI, tracker.OnChangeInputMode());
    EXPECT_TRUE(tracker.IsVisible());  // ChangeInputMode -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI,
              tracker.OnKey(AKey, true, false));
    EXPECT_FALSE(tracker.IsVisible());  // KeyDown -> Invisible
    EXPECT_EQ(IndicatorVisibilityTracker::kUpdateUI, tracker.OnChangeInputMode());
    EXPECT_TRUE(tracker.IsVisible());  // ChangeInputMode -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kNothing,
              tracker.OnTestKey(AKey, false, false));
    EXPECT_TRUE(tracker.IsVisible());  // TestKeyUp -> Visible
    EXPECT_EQ(IndicatorVisibilityTracker::kNothing,
              tracker.OnKey(AKey, false, false));
    EXPECT_TRUE(tracker.IsVisible());  // KeyUp -> Visible
  }
  
  }  // namespace
  
  }  // namespace win32
  }  // namespace mozc
  