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
17package android.widget.listview;
18
19import android.app.Instrumentation;
20import android.test.ActivityInstrumentationTestCase;
21import android.test.suitebuilder.annotation.LargeTest;
22import android.test.suitebuilder.annotation.MediumTest;
23import android.view.KeyEvent;
24import android.widget.AbsListView;
25import android.widget.ListView;
26
27import android.test.TouchUtils;
28
29public 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