1 /* 2 * Copyright 2017 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 androidx.recyclerview.selection; 18 19 import static org.junit.Assert.assertFalse; 20 import static org.junit.Assert.assertTrue; 21 22 import android.graphics.Rect; 23 import android.support.test.filters.SmallTest; 24 import android.support.test.runner.AndroidJUnit4; 25 import android.view.MotionEvent; 26 27 import androidx.recyclerview.selection.testing.TestAdapter; 28 import androidx.recyclerview.selection.testing.TestAutoScroller; 29 import androidx.recyclerview.selection.testing.TestBandPredicate; 30 import androidx.recyclerview.selection.testing.TestData; 31 import androidx.recyclerview.selection.testing.TestEvents.Builder; 32 import androidx.recyclerview.selection.testing.TestItemKeyProvider; 33 import androidx.recyclerview.widget.RecyclerView.OnScrollListener; 34 35 import org.junit.Before; 36 import org.junit.Test; 37 import org.junit.runner.RunWith; 38 39 import java.util.Collections; 40 import java.util.List; 41 42 @RunWith(AndroidJUnit4.class) 43 @SmallTest 44 public class BandSelectionHelperTest { 45 46 private List<String> mItems; 47 private BandSelectionHelper<String> mBandController; 48 private boolean mIsActive; 49 private Builder mStartBuilder; 50 private Builder mStopBuilder; 51 private MotionEvent mStartEvent; 52 private MotionEvent mStopEvent; 53 private TestBandHost mBandHost; 54 private TestBandPredicate mBandPredicate; 55 private TestAdapter<String> mAdapter; 56 57 @Before 58 public void setup() throws Exception { 59 mItems = TestData.createStringData(10); 60 mIsActive = false; 61 mAdapter = new TestAdapter<String>(); 62 mAdapter.updateTestModelIds(mItems); 63 mBandHost = new TestBandHost(); 64 mBandPredicate = new TestBandPredicate(); 65 ItemKeyProvider<String> keyProvider = 66 new TestItemKeyProvider<>(ItemKeyProvider.SCOPE_MAPPED, mAdapter); 67 OperationMonitor operationMonitor = new OperationMonitor(); 68 69 SelectionTracker<String> helper = new DefaultSelectionTracker<String>( 70 "band-selection-test", 71 keyProvider, 72 SelectionPredicates.createSelectAnything(), 73 StorageStrategy.createStringStorage()); 74 75 EventBridge.install(mAdapter, helper, keyProvider); 76 FocusDelegate<String> focusDelegate = FocusDelegate.dummy(); 77 78 mBandController = new BandSelectionHelper<String>( 79 mBandHost, 80 new TestAutoScroller(), 81 keyProvider, 82 helper, 83 mBandPredicate, 84 focusDelegate, 85 operationMonitor) { 86 @Override 87 public boolean isActive() { 88 return mIsActive; 89 } 90 }; 91 92 mStartBuilder = new Builder().mouse().primary().action(MotionEvent.ACTION_MOVE); 93 mStopBuilder = new Builder().mouse().action(MotionEvent.ACTION_UP); 94 mStartEvent = mStartBuilder.build(); 95 mStopEvent = mStopBuilder.build(); 96 } 97 98 @Test 99 public void testStartsBand() { 100 assertTrue(mBandController.shouldStart(mStartEvent)); 101 } 102 103 @Test 104 public void testStartsBand_NoItems() { 105 mAdapter.updateTestModelIds(Collections.EMPTY_LIST); 106 assertTrue(mBandController.shouldStart(mStartEvent)); 107 } 108 109 @Test 110 public void testBadStart_NoButtons() { 111 assertFalse(mBandController.shouldStart( 112 mStartBuilder.releaseButton(MotionEvent.BUTTON_PRIMARY).build())); 113 } 114 115 @Test 116 public void testBadStart_SecondaryButton() { 117 assertFalse( 118 mBandController.shouldStart(mStartBuilder.secondary().build())); 119 } 120 121 @Test 122 public void testBadStart_TertiaryButton() { 123 assertFalse( 124 mBandController.shouldStart(mStartBuilder.tertiary().build())); 125 } 126 127 @Test 128 public void testBadStart_Touch() { 129 assertFalse(mBandController.shouldStart( 130 mStartBuilder.touch().releaseButton(MotionEvent.BUTTON_PRIMARY).build())); 131 } 132 133 @Test 134 public void testBadStart_RespectsCanInitiateBand() { 135 mBandPredicate.setCanInitiate(false); 136 assertFalse(mBandController.shouldStart(mStartEvent)); 137 } 138 139 @Test 140 public void testBadStart_ActionDown() { 141 assertFalse(mBandController 142 .shouldStart(mStartBuilder.action(MotionEvent.ACTION_DOWN).build())); 143 } 144 145 @Test 146 public void testBadStart_ActionUp() { 147 assertFalse(mBandController 148 .shouldStart(mStartBuilder.action(MotionEvent.ACTION_UP).build())); 149 } 150 151 @Test 152 public void testBadStart_ActionPointerDown() { 153 assertFalse(mBandController.shouldStart( 154 mStartBuilder.action(MotionEvent.ACTION_POINTER_DOWN).build())); 155 } 156 157 @Test 158 public void testBadStart_ActionPointerUp() { 159 assertFalse(mBandController.shouldStart( 160 mStartBuilder.action(MotionEvent.ACTION_POINTER_UP).build())); 161 } 162 163 @Test 164 public void testBadStart_alreadyActive() { 165 mIsActive = true; 166 assertFalse(mBandController.shouldStart(mStartEvent)); 167 } 168 169 @Test 170 public void testGoodStop() { 171 mIsActive = true; 172 assertTrue(mBandController.shouldStop(mStopEvent)); 173 } 174 175 @Test 176 public void testGoodStop_PointerUp() { 177 mIsActive = true; 178 assertTrue(mBandController 179 .shouldStop(mStopBuilder.action(MotionEvent.ACTION_POINTER_UP).build())); 180 } 181 182 @Test 183 public void testGoodStop_Cancel() { 184 mIsActive = true; 185 assertTrue(mBandController 186 .shouldStop(mStopBuilder.action(MotionEvent.ACTION_CANCEL).build())); 187 } 188 189 @Test 190 public void testBadStop_NotActive() { 191 assertFalse(mBandController.shouldStop(mStopEvent)); 192 } 193 194 @Test 195 public void testBadStop_Move() { 196 mIsActive = true; 197 assertFalse(mBandController.shouldStop( 198 mStopBuilder.action(MotionEvent.ACTION_MOVE).touch().build())); 199 } 200 201 @Test 202 public void testBadStop_Down() { 203 mIsActive = true; 204 assertFalse(mBandController.shouldStop( 205 mStopBuilder.action(MotionEvent.ACTION_DOWN).touch().build())); 206 } 207 208 private final class TestBandHost extends BandSelectionHelper.BandHost<String> { 209 @Override 210 GridModel<String> createGridModel() { 211 throw new UnsupportedOperationException(); 212 } 213 214 @Override 215 void showBand(Rect rect) { 216 throw new UnsupportedOperationException(); 217 } 218 219 @Override 220 void hideBand() { 221 throw new UnsupportedOperationException(); 222 } 223 224 @Override 225 void addOnScrollListener(OnScrollListener listener) { 226 } 227 } 228 } 229
