1/*
2 * Copyright (C) 2008 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.arrowscroll;
18
19import android.test.ActivityInstrumentationTestCase2;
20import android.test.suitebuilder.annotation.MediumTest;
21import android.test.suitebuilder.annotation.Suppress;
22import android.view.KeyEvent;
23import android.view.View;
24import android.widget.ListView;
25import android.widget.listview.ListWithScreenOfNoSelectables;
26
27public class ListWithScreenOfNoSelectablesTest extends ActivityInstrumentationTestCase2<ListWithScreenOfNoSelectables> {
28
29    private ListView mListView;
30
31    public ListWithScreenOfNoSelectablesTest() {
32        super(ListWithScreenOfNoSelectables.class);
33    }
34
35    @Override
36    protected void setUp() throws Exception {
37        super.setUp();
38        mListView = getActivity().getListView();
39    }
40
41    @MediumTest
42    public void testPreconditions() {
43        assertTrue("expecting first position to be selectable",
44                mListView.getAdapter().isEnabled(0));
45        final int numItems = mListView.getCount();
46        for (int i = 1; i < numItems; i++) {
47            assertFalse("expecting item to be unselectable (index " + i +")",
48                    mListView.getAdapter().isEnabled(i));
49        }
50        assertTrue("expecting that not all views fit on screen",
51                mListView.getChildCount() < mListView.getCount());
52    }
53
54
55    @MediumTest
56    public void testGoFromSelectedViewExistsToNoSelectedViewExists() {
57
58        // go down until first (and only selectable) item is off screen
59        View first = mListView.getChildAt(0);
60        while (first.getParent() != null) {
61            sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
62        }
63
64        // nothing should be selected
65        assertEquals("selected position", ListView.INVALID_POSITION, mListView.getSelectedItemPosition());
66        assertNull("selected view", mListView.getSelectedView());
67    }
68
69    @MediumTest
70    public void testPanDownAcrossUnselectableChildrenToBottom() {
71        final int lastPosition = mListView.getCount() - 1;
72        final int maxDowns = 20;
73        for(int count = 0; count < maxDowns && mListView.getLastVisiblePosition() <= lastPosition; count++) {
74            sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
75        }
76        assertEquals("last visible position not the last position in the list even "
77                + "after " + maxDowns + " downs", lastPosition, mListView.getLastVisiblePosition());
78    }
79
80    @MediumTest
81    @Suppress // Failing.
82    public void testGoFromNoSelectionToSelectionExists() {
83        // go down untile first (and only selectable) item is off screen
84        View first = mListView.getChildAt(0);
85        while (first.getParent() != null) {
86            sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
87        }
88
89        // nothing should be selected
90        assertEquals("selected position", ListView.INVALID_POSITION, mListView.getSelectedItemPosition());
91        assertNull("selected view", mListView.getSelectedView());
92
93        // go up once to bring the selectable back on screen
94        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
95        assertEquals("first visible position", 0, mListView.getFirstVisiblePosition());
96        assertEquals("selected position", ListView.INVALID_POSITION, mListView.getSelectedItemPosition());
97
98
99        // up once more should give it selection
100        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
101        assertEquals("selected position", 0, mListView.getSelectedItemPosition());
102
103    }
104
105
106}
107