content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.android.launcher3.touch;
  
  import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_BOTH;
  import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_NEGATIVE;
  import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_POSITIVE;
  import static com.android.launcher3.touch.SingleAxisSwipeDetector.HORIZONTAL;
  import static com.android.launcher3.touch.SingleAxisSwipeDetector.VERTICAL;
  
  import static org.mockito.Matchers.anyBoolean;
  import static org.mockito.Matchers.anyFloat;
  import static org.mockito.Matchers.anyObject;
  import static org.mockito.Mockito.doReturn;
  import static org.mockito.Mockito.never;
  import static org.mockito.Mockito.verify;
  
  import android.util.Log;
  import android.view.ViewConfiguration;
  
  import androidx.test.InstrumentationRegistry;
  import androidx.test.filters.SmallTest;
  import androidx.test.runner.AndroidJUnit4;
  
  import com.android.launcher3.testcomponent.TouchEventGenerator;
  
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  
  @SmallTest
  @RunWith(AndroidJUnit4.class)
  public class SingleAxisSwipeDetectorTest {
  
      private static final String TAG = SingleAxisSwipeDetectorTest.class.getSimpleName();
      public static void L(String s, Object... parts) {
          Log.d(TAG, (parts.length == 0) ? s : String.format(s, parts));
      }
  
      private TouchEventGenerator mGenerator;
      private SingleAxisSwipeDetector mDetector;
      private int mTouchSlop;
  
      @Mock
      private SingleAxisSwipeDetector.Listener mMockListener;
  
      @Mock
      private ViewConfiguration mMockConfig;
  
      @Before
      public void setup() {
          MockitoAnnotations.initMocks(this);
          mGenerator = new TouchEventGenerator((ev) -> mDetector.onTouchEvent(ev));
          ViewConfiguration orgConfig = ViewConfiguration
                  .get(InstrumentationRegistry.getTargetContext());
          doReturn(orgConfig.getScaledMaximumFlingVelocity()).when(mMockConfig)
                  .getScaledMaximumFlingVelocity();
  
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
          mDetector.setDetectableScrollConditions(DIRECTION_BOTH, false);
          mTouchSlop = orgConfig.getScaledTouchSlop();
          doReturn(mTouchSlop).when(mMockConfig).getScaledTouchSlop();
  
          L("mTouchSlop=", mTouchSlop);
      }
  
      @Test
      public void testDragStart_verticalPositive() {
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
          mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100, 100 - mTouchSlop);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDragStart_verticalNegative() {
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
          mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100, 100 + mTouchSlop);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDragStart_failed() {
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100 + mTouchSlop, 100);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener, never()).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDragStart_horizontalPositive() {
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, false);
          mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
  
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100 + mTouchSlop, 100);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDragStart_horizontalNegative() {
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, false);
          mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
  
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100 - mTouchSlop, 100);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDragStart_horizontalRtlPositive() {
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, true);
          mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
  
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100 - mTouchSlop, 100);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDragStart_horizontalRtlNegative() {
          mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, true);
          mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
  
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100 + mTouchSlop, 100);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragStart(anyBoolean());
      }
  
      @Test
      public void testDrag() {
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100, 100 + mTouchSlop);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDrag(anyFloat(), anyObject());
      }
  
      @Test
      public void testDragEnd() {
          mGenerator.put(0, 100, 100);
          mGenerator.move(0, 100, 100 + mTouchSlop);
          mGenerator.move(0, 100, 100 + mTouchSlop * 2);
          mGenerator.lift(0);
          // TODO: actually calculate the following parameters and do exact value checks.
          verify(mMockListener).onDragEnd(anyFloat());
      }
  }
  