Home | History | Annotate | Download | only in arrowscroll 
      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.arrowscroll;
     18 
     19 import android.test.ActivityInstrumentationTestCase;
     20 import android.test.suitebuilder.annotation.MediumTest;
     21 import android.widget.ListView;
     22 import android.view.View;
     23 import android.view.KeyEvent;
     24 import android.widget.listview.ListLastItemPartiallyVisible;
     25 
     26 public class ListLastItemPartiallyVisibleTest extends ActivityInstrumentationTestCase<ListLastItemPartiallyVisible> {
     27     private ListView mListView;
     28     private int mListBottom;
     29 
     30 
     31     public ListLastItemPartiallyVisibleTest() {
     32         super("com.android.frameworks.coretests", ListLastItemPartiallyVisible.class);
     33     }
     34 
     35     @Override
     36     protected void setUp() throws Exception {
     37         super.setUp();
     38         mListView = getActivity().getListView();
     39         mListBottom = mListView.getHeight() - mListView.getPaddingBottom();
     40     }
     41 
     42     @MediumTest
     43     public void testPreconditions() {
     44         assertEquals("number of elements visible should be the same as number of items " +
     45                 "in adapter", mListView.getCount(), mListView.getChildCount());
     46 
     47         final View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
     48         assertTrue("last item should be partially off screen",
     49                 lastChild.getBottom() > mListBottom);
     50         assertEquals("selected position", 0, mListView.getSelectedItemPosition());
     51     }
     52 
     53     // reproduce bug 998094
     54     @MediumTest
     55     public void testMovingDownToFullyVisibleNoScroll() {
     56         final View firstChild = mListView.getChildAt(0);
     57         final int firstBottom = firstChild.getBottom();
     58         sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
     59         assertEquals("shouldn't have scrolled: bottom of first child changed.",
     60                 firstBottom, firstChild.getBottom());
     61     }
     62 
     63     // reproduce bug 998094
     64     @MediumTest
     65     public void testMovingUpToFullyVisibleNoScroll() {
     66         int numMovesToLast = mListView.getCount() - 1;
     67         for (int i = 0; i < numMovesToLast; i++) {
     68             sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
     69         }
     70         assertEquals("should have moved to last position",
     71                 mListView.getChildCount() - 1, mListView.getSelectedItemPosition());
     72 
     73         final View lastChild = mListView.getSelectedView();
     74         final int lastTop = lastChild.getTop();
     75         sendKeys(KeyEvent.KEYCODE_DPAD_UP);
     76         assertEquals("shouldn't have scrolled: top of last child changed.",
     77                 lastTop, lastChild.getTop());
     78     }
     79 
     80 }
     81