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 org.junit.Assert.fail; 20 21 import android.support.test.filters.SmallTest; 22 import android.support.test.runner.AndroidJUnit4; 23 24 import com.android.documentsui.selection.testing.SelectionPredicates; 25 import com.android.documentsui.selection.testing.SelectionProbe; 26 import com.android.documentsui.selection.testing.TestAdapter; 27 import com.android.documentsui.selection.testing.TestSelectionObserver; 28 import com.android.documentsui.selection.testing.TestStableIdProvider; 29 30 import org.junit.Before; 31 import org.junit.Test; 32 import org.junit.runner.RunWith; 33 34 import java.util.List; 35 36 @RunWith(AndroidJUnit4.class) 37 @SmallTest 38 public class DefaultSelectionHelper_SingleSelectTest { 39 40 private List<String> mItems; 41 private SelectionHelper mHelper; 42 private TestSelectionObserver mListener; 43 private SelectionProbe mSelection; 44 45 @Before setUp()46 public void setUp() throws Exception { 47 mItems = TestAdapter.createItemList(100); 48 mListener = new TestSelectionObserver(); 49 TestAdapter adapter = new TestAdapter(); 50 adapter.updateTestModelIds(mItems); 51 52 mHelper = new DefaultSelectionHelper( 53 DefaultSelectionHelper.MODE_SINGLE, 54 adapter, 55 new TestStableIdProvider(adapter), 56 SelectionPredicates.CAN_SET_ANYTHING); 57 58 mHelper.addObserver(mListener); 59 60 mSelection = new SelectionProbe(mHelper); 61 } 62 63 @Test testSimpleSelect()64 public void testSimpleSelect() { 65 mHelper.select(mItems.get(3)); 66 mHelper.select(mItems.get(4)); 67 mListener.assertSelectionChanged(); 68 mSelection.assertSelection(4); 69 } 70 71 @Test testRangeSelectionNotEstablished()72 public void testRangeSelectionNotEstablished() { 73 mHelper.select(mItems.get(3)); 74 mListener.reset(); 75 76 try { 77 mHelper.extendRange(10); 78 fail("Should have thrown."); 79 } catch (Exception expected) {} 80 81 mListener.assertSelectionUnchanged(); 82 mSelection.assertSelection(3); 83 } 84 } 85