1 /* 2 * Copyright (C) 2016 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.assertFalse; 20 import static org.junit.Assert.assertTrue; 21 import static org.junit.Assert.fail; 22 23 import android.support.test.filters.SmallTest; 24 import android.support.test.runner.AndroidJUnit4; 25 import android.support.v7.widget.RecyclerView; 26 import android.view.MotionEvent; 27 28 import com.android.documentsui.selection.testing.SelectionProbe; 29 import com.android.documentsui.selection.testing.TestData; 30 import com.android.documentsui.testing.SelectionHelpers; 31 import com.android.documentsui.testing.TestEvents; 32 33 import org.junit.Before; 34 import org.junit.Test; 35 import org.junit.runner.RunWith; 36 37 import java.util.List; 38 39 @RunWith(AndroidJUnit4.class) 40 @SmallTest 41 public class GestureSelectionHelperTest { 42 43 private static final List<String> ITEMS = TestData.create(100); 44 private static final MotionEvent DOWN = TestEvents.builder() 45 .action(MotionEvent.ACTION_DOWN) 46 .location(1, 1) 47 .build(); 48 49 private static final MotionEvent MOVE = TestEvents.builder() 50 .action(MotionEvent.ACTION_MOVE) 51 .location(1, 1) 52 .build(); 53 54 private static final MotionEvent UP = TestEvents.builder() 55 .action(MotionEvent.ACTION_UP) 56 .location(1, 1) 57 .build(); 58 59 private GestureSelectionHelper mHelper; 60 private SelectionHelper mSelectionHelper; 61 private SelectionProbe mSelection; 62 private ContentLock mLock; 63 private TestItemDetailsLookup mItemLookup; 64 private TestViewDelegate mView; 65 66 @Before setUp()67 public void setUp() { 68 mSelectionHelper = SelectionHelpers.createTestInstance(ITEMS); 69 mSelection = new SelectionProbe(mSelectionHelper); 70 mLock = new ContentLock(); 71 mItemLookup = new TestItemDetailsLookup(); 72 mItemLookup.initAt(3); 73 mView = new TestViewDelegate(); 74 mHelper = new GestureSelectionHelper(mSelectionHelper, mView, mLock, mItemLookup); 75 } 76 77 @Test testIgnoresDown_NoPosition()78 public void testIgnoresDown_NoPosition() { 79 mView.mNextPosition = RecyclerView.NO_POSITION; 80 assertFalse(mHelper.onInterceptTouchEvent(null, DOWN)); 81 } 82 83 @Test testIgnoresDown_NoItemDetails()84 public void testIgnoresDown_NoItemDetails() { 85 mItemLookup.reset(); 86 assertFalse(mHelper.onInterceptTouchEvent(null, DOWN)); 87 } 88 89 @Test testNoStartOnIllegalPosition()90 public void testNoStartOnIllegalPosition() { 91 mView.mNextPosition = -1; 92 mHelper.onInterceptTouchEvent(null, DOWN); 93 mHelper.start(); 94 assertFalse(mLock.isLocked()); 95 } 96 97 @Test testClaimsDownOnItem()98 public void testClaimsDownOnItem() { 99 mView.mNextPosition = 0; 100 assertTrue(mHelper.onInterceptTouchEvent(null, DOWN)); 101 } 102 103 @Test testClaimsMoveIfStarted()104 public void testClaimsMoveIfStarted() { 105 mView.mNextPosition = 0; 106 assertTrue(mHelper.onInterceptTouchEvent(null, DOWN)); 107 108 // Normally, this is controller by the TouchSelectionHelper via a a long press gesture. 109 mSelectionHelper.select("1"); 110 mSelectionHelper.anchorRange(1); 111 mHelper.start(); 112 assertTrue(mHelper.onInterceptTouchEvent(null, MOVE)); 113 } 114 115 @Test testCreatesRangeSelection()116 public void testCreatesRangeSelection() { 117 mView.mNextPosition = 1; 118 mHelper.onInterceptTouchEvent(null, DOWN); 119 // Another way we are implicitly coupled to TouchInputHandler, is that we depend on 120 // long press to establish the initial anchor point. Without that we'll get an 121 // error when we try to extend the range. 122 123 mSelectionHelper.select("1"); 124 mSelectionHelper.anchorRange(1); 125 mHelper.start(); 126 127 mHelper.onTouchEvent(null, MOVE); 128 129 mView.mNextPosition = 9; 130 mHelper.onTouchEvent(null, MOVE); 131 mHelper.onTouchEvent(null, UP); 132 133 mSelection.assertRangeSelected(1, 9); 134 } 135 136 private static final class TestViewDelegate extends GestureSelectionHelper.ViewDelegate { 137 138 private int mNextPosition = RecyclerView.NO_POSITION; 139 140 @Override getHeight()141 int getHeight() { 142 return 1000; 143 } 144 145 @Override getItemUnder(MotionEvent e)146 int getItemUnder(MotionEvent e) { 147 return mNextPosition; 148 } 149 150 @Override getLastGlidedItemPosition(MotionEvent e)151 int getLastGlidedItemPosition(MotionEvent e) { 152 return mNextPosition; 153 } 154 } 155 } 156