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
setup()42     public void setup() {
43         super.setup();
44         mChangeScroll = new ChangeScroll();
45         mTransition = mChangeScroll;
46         resetListener();
47     }
48 
49     @Test
testChangeScroll()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