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      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
     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
     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
     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