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      1 /*
      2  * Copyright (C) 2007 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 
     17 package android.widget.listview;
     18 
     19 import android.app.Instrumentation;
     20 import android.test.ActivityInstrumentationTestCase;
     21 import android.test.suitebuilder.annotation.LargeTest;
     22 import android.test.suitebuilder.annotation.MediumTest;
     23 import android.view.KeyEvent;
     24 import android.widget.AbsListView;
     25 import android.widget.ListView;
     26 
     27 import android.test.TouchUtils;
     28 
     29 public class ListScrollListenerTest extends ActivityInstrumentationTestCase<ListScrollListener> implements
     30         AbsListView.OnScrollListener {
     31     private ListScrollListener mActivity;
     32     private ListView mListView;
     33     private int mFirstVisibleItem = -1;
     34     private int mVisibleItemCount = -1;
     35     private int mTotalItemCount = -1;
     36 
     37     public ListScrollListenerTest() {
     38         super("com.android.frameworks.coretests", ListScrollListener.class);
     39     }
     40 
     41     @Override
     42     protected void setUp() throws Exception {
     43         super.setUp();
     44 
     45         mActivity = getActivity();
     46         mListView = getActivity().getListView();
     47         mListView.setOnScrollListener(this);
     48     }
     49 
     50     @MediumTest
     51     public void testPreconditions() {
     52         assertNotNull(mActivity);
     53         assertNotNull(mListView);
     54 
     55         assertEquals(0, mFirstVisibleItem);
     56     }
     57 
     58     @LargeTest
     59     public void testKeyScrolling() {
     60         Instrumentation inst = getInstrumentation();
     61 
     62         int firstVisibleItem = mFirstVisibleItem;
     63         for (int i = 0; i < mVisibleItemCount * 2; i++) {
     64             inst.sendCharacterSync(KeyEvent.KEYCODE_DPAD_DOWN);
     65         }
     66         inst.waitForIdleSync();
     67         assertTrue("Arrow scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     68 
     69         firstVisibleItem = mFirstVisibleItem;
     70         inst.sendCharacterSync(KeyEvent.KEYCODE_SPACE);
     71         inst.waitForIdleSync();
     72         assertTrue("Page scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     73 
     74         firstVisibleItem = mFirstVisibleItem;
     75         KeyEvent down = new KeyEvent(0, 0, KeyEvent.ACTION_DOWN,
     76                 KeyEvent.KEYCODE_DPAD_DOWN, 0, KeyEvent.META_ALT_ON);
     77         KeyEvent up = new KeyEvent(0, 0, KeyEvent.ACTION_UP,
     78                 KeyEvent.KEYCODE_DPAD_DOWN, 0, KeyEvent.META_ALT_ON);
     79         inst.sendKeySync(down);
     80         inst.sendKeySync(up);
     81         inst.waitForIdleSync();
     82 
     83         assertTrue("Full scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     84         assertEquals("Full scroll did not happen", mTotalItemCount,
     85                 mFirstVisibleItem + mVisibleItemCount);
     86     }
     87 
     88     @LargeTest
     89     public void testTouchScrolling() {
     90         int firstVisibleItem = mFirstVisibleItem;
     91         TouchUtils.dragQuarterScreenUp(this);
     92         TouchUtils.dragQuarterScreenUp(this);
     93         assertTrue("Touch scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     94     }
     95 
     96 
     97     public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
     98         mFirstVisibleItem = firstVisibleItem;
     99         mVisibleItemCount = visibleItemCount;
    100         mTotalItemCount = totalItemCount;
    101     }
    102 
    103     public void onScrollStateChanged(AbsListView view, int scrollState) {
    104     }
    105 }
    106