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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package android.transition.cts;
     17 
     18 import static org.junit.Assert.assertEquals;
     19 import static org.junit.Assert.assertTrue;
     20 
     21 import android.transition.ChangeScroll;
     22 import android.transition.TransitionManager;
     23 import android.view.View;
     24 
     25 import androidx.test.filters.MediumTest;
     26 import androidx.test.runner.AndroidJUnit4;
     27 
     28 import org.junit.Before;
     29 import org.junit.Test;
     30 import org.junit.runner.RunWith;
     31 
     32 import java.util.concurrent.CountDownLatch;
     33 import java.util.concurrent.TimeUnit;
     34 
     35 @MediumTest
     36 @RunWith(AndroidJUnit4.class)
     37 public class ChangeScrollTest extends BaseTransitionTest {
     38     ChangeScroll mChangeScroll;
     39 
     40     @Override
     41     @Before
     42     public void setup() {
     43         super.setup();
     44         mChangeScroll = new ChangeScroll();
     45         mTransition = mChangeScroll;
     46         resetListener();
     47     }
     48 
     49     @Test
     50     public void testChangeScroll() throws Throwable {
     51         enterScene(R.layout.scene5);
     52         final CountDownLatch scrollChanged = new CountDownLatch(1);
     53         final View.OnScrollChangeListener listener = (v, newX, newY, oldX, oldY) -> {
     54             if (newX != 0 && newY != 0) {
     55                 scrollChanged.countDown();
     56             }
     57         };
     58         mActivityRule.runOnUiThread(() -> {
     59             final View view = mActivity.findViewById(R.id.text);
     60             assertEquals(0, view.getScrollX());
     61             assertEquals(0, view.getScrollY());
     62             TransitionManager.beginDelayedTransition(mSceneRoot, mChangeScroll);
     63             view.scrollTo(150, 300);
     64             view.setOnScrollChangeListener(listener);
     65         });
     66         waitForStart();
     67         assertTrue(scrollChanged.await(1, TimeUnit.SECONDS));
     68         mActivityRule.runOnUiThread(() -> {
     69             final View view = mActivity.findViewById(R.id.text);
     70             final int scrollX = view.getScrollX();
     71             final int scrollY = view.getScrollY();
     72             assertTrue(scrollX > 0);
     73             assertTrue(scrollX < 150);
     74             assertTrue(scrollY > 0);
     75             assertTrue(scrollY < 300);
     76         });
     77         waitForEnd(800);
     78         mActivityRule.runOnUiThread(() -> {
     79             final View view = mActivity.findViewById(R.id.text);
     80             assertEquals(150, view.getScrollX());
     81             assertEquals(300, view.getScrollY());
     82         });
     83     }
     84 }
     85 
     86