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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.gridview;
     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.test.TouchUtils;
     24 import android.view.KeyEvent;
     25 import android.widget.AbsListView;
     26 import android.widget.GridView;
     27 
     28 import android.widget.gridview.GridScrollListener;
     29 
     30 public class GridScrollListenerTest extends ActivityInstrumentationTestCase<GridScrollListener> implements
     31         AbsListView.OnScrollListener {
     32     private GridScrollListener mActivity;
     33     private GridView mGridView;
     34     private int mFirstVisibleItem = -1;
     35     private int mVisibleItemCount = -1;
     36     private int mTotalItemCount = -1;
     37 
     38     public GridScrollListenerTest() {
     39         super("com.android.frameworks.coretests", GridScrollListener.class);
     40     }
     41 
     42     @Override
     43     protected void setUp() throws Exception {
     44         super.setUp();
     45 
     46         mActivity = getActivity();
     47         mGridView = getActivity().getGridView();
     48         mGridView.setOnScrollListener(this);
     49     }
     50 
     51     @MediumTest
     52     public void testPreconditions() {
     53         assertNotNull(mActivity);
     54         assertNotNull(mGridView);
     55 
     56         assertEquals(0, mFirstVisibleItem);
     57     }
     58 
     59     @LargeTest
     60     public void testKeyScrolling() {
     61         Instrumentation inst = getInstrumentation();
     62 
     63         int firstVisibleItem = mFirstVisibleItem;
     64         for (int i = 0; i < mVisibleItemCount * 2; i++) {
     65             inst.sendCharacterSync(KeyEvent.KEYCODE_DPAD_DOWN);
     66         }
     67         inst.waitForIdleSync();
     68 
     69         assertTrue("Arrow scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     70 
     71         firstVisibleItem = mFirstVisibleItem;
     72         inst.sendCharacterSync(KeyEvent.KEYCODE_SPACE);
     73         inst.waitForIdleSync();
     74 
     75         assertTrue("Page scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     76 
     77         firstVisibleItem = mFirstVisibleItem;
     78         KeyEvent down = new KeyEvent(0, 0, KeyEvent.ACTION_DOWN,
     79                 KeyEvent.KEYCODE_DPAD_DOWN, 0, KeyEvent.META_ALT_ON);
     80         KeyEvent up = new KeyEvent(0, 0, KeyEvent.ACTION_UP,
     81                 KeyEvent.KEYCODE_DPAD_DOWN, 0, KeyEvent.META_ALT_ON);
     82         inst.sendKeySync(down);
     83         inst.sendKeySync(up);
     84         inst.waitForIdleSync();
     85 
     86         assertTrue("Full scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     87         assertEquals("Full scroll did not happen", mTotalItemCount,
     88                 mFirstVisibleItem + mVisibleItemCount);
     89     }
     90 
     91     @LargeTest
     92     public void testTouchScrolling() {
     93         Instrumentation inst = getInstrumentation();
     94 
     95         int firstVisibleItem = mFirstVisibleItem;
     96         TouchUtils.dragQuarterScreenUp(this);
     97         TouchUtils.dragQuarterScreenUp(this);
     98         assertTrue("Touch scroll did not happen", mFirstVisibleItem > firstVisibleItem);
     99     }
    100 
    101 
    102     public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
    103         mFirstVisibleItem = firstVisibleItem;
    104         mVisibleItemCount = visibleItemCount;
    105         mTotalItemCount = totalItemCount;
    106     }
    107 
    108     public void onScrollStateChanged(AbsListView view, int scrollState) {
    109     }
    110 }
    111