1 /*
2  * Copyright (C) 2015 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 com.android.documentsui.selection;
18 
19 import static junit.framework.Assert.fail;
20 
21 import android.support.test.filters.SmallTest;
22 import android.support.test.runner.AndroidJUnit4;
23 
24 import com.android.documentsui.dirlist.TestData;
25 import com.android.documentsui.dirlist.TestDocumentsAdapter;
26 import com.android.documentsui.selection.SelectionManager;
27 import com.android.documentsui.testing.SelectionManagers;
28 
29 import org.junit.Before;
30 import org.junit.Test;
31 import org.junit.runner.RunWith;
32 
33 import java.util.List;
34 
35 @RunWith(AndroidJUnit4.class)
36 @SmallTest
37 public class SelectionManager_SingleSelectTest {
38 
39     private static final List<String> ITEMS = TestData.create(100);
40 
41     private SelectionManager mManager;
42     private TestSelectionListener mCallback;
43     private TestDocumentsAdapter mAdapter;
44     private SelectionProbe mSelection;
45 
46     @Before
setUp()47     public void setUp() throws Exception {
48         mCallback = new TestSelectionListener();
49         mManager = SelectionManagers.createTestInstance(ITEMS, SelectionManager.MODE_SINGLE);
50         mManager.addCallback(mCallback);
51 
52         mSelection = new SelectionProbe(mManager);
53     }
54 
55     @Test
testSimpleSelect()56     public void testSimpleSelect() {
57         mManager.toggleSelection(ITEMS.get(3));
58         mManager.toggleSelection(ITEMS.get(4));
59         mCallback.assertSelectionChanged();
60         mSelection.assertSelection(4);
61     }
62 
63     @Test
testRangeSelectionNotEstablished()64     public void testRangeSelectionNotEstablished() {
65         mManager.toggleSelection(ITEMS.get(3));
66         mCallback.reset();
67 
68         try {
69             mManager.snapRangeSelection(10);
70             fail("Should have thrown.");
71         } catch (Exception expected) {}
72 
73         mCallback.assertSelectionUnchanged();
74         mSelection.assertSelection(3);
75     }
76 }
77