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