1 /* 2 * Copyright (C) 2010 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 package com.android.contacts.widget; 17 18 import android.content.Context; 19 import android.database.DataSetObserver; 20 import android.test.AndroidTestCase; 21 import android.view.View; 22 import android.view.ViewGroup; 23 import android.widget.ArrayAdapter; 24 25 import com.google.common.collect.Lists; 26 27 import java.util.ArrayList; 28 import java.util.HashMap; 29 import java.util.HashSet; 30 import java.util.List; 31 32 /** 33 * Tests for {@link CompositeListAdapter}. 34 */ 35 public class CompositeListAdapterTest extends AndroidTestCase { 36 37 private final class MockAdapter extends ArrayAdapter<String> { 38 boolean allItemsEnabled = true; 39 HashSet<Integer> enabledItems = new HashSet<Integer>(); 40 int viewTypeCount = 1; 41 HashMap<Integer, Integer> viewTypes = new HashMap<Integer, Integer>(); 42 43 private MockAdapter(Context context, List<String> objects) { 44 super(context, android.R.layout.simple_list_item_1, objects); 45 for (int i = 0; i < objects.size(); i++) { 46 viewTypes.put(i, 0); 47 } 48 } 49 50 @Override 51 public View getView(int position, View convertView, ViewGroup parent) { 52 return new MockView(getContext(), position); 53 } 54 55 @Override 56 public boolean areAllItemsEnabled() { 57 return allItemsEnabled; 58 } 59 60 @Override 61 public boolean isEnabled(int position) { 62 return enabledItems.contains(position); 63 } 64 65 @Override 66 public int getViewTypeCount() { 67 return viewTypeCount; 68 } 69 70 @Override 71 public int getItemViewType(int position) { 72 return viewTypes.get(position); 73 } 74 } 75 76 private final class MockView extends View { 77 public MockView(Context context, int position) { 78 super(context); 79 setTag(position); 80 } 81 } 82 83 private final class TestDataSetObserver extends DataSetObserver { 84 85 public int changeCount; 86 public int invalidationCount; 87 88 @Override 89 public void onChanged() { 90 changeCount++; 91 } 92 93 @Override 94 public void onInvalidated() { 95 invalidationCount++; 96 } 97 } 98 99 private MockAdapter mAdapter1; 100 private MockAdapter mAdapter2; 101 private MockAdapter mAdapter3; 102 103 @Override 104 protected void setUp() throws Exception { 105 super.setUp(); 106 mAdapter1 = new MockAdapter(getContext(), Lists.newArrayList("A", "B")); 107 mAdapter2 = new MockAdapter(getContext(), new ArrayList<String>()); 108 mAdapter3 = new MockAdapter(getContext(), Lists.newArrayList("C", "D", "E")); 109 } 110 111 public void testGetCount() { 112 CompositeListAdapter adapter = new CompositeListAdapter(); 113 adapter.addAdapter(mAdapter1); 114 adapter.addAdapter(mAdapter2); 115 adapter.addAdapter(mAdapter3); 116 117 assertEquals(5, adapter.getCount()); 118 } 119 120 public void testGetCountWithInvalidation() { 121 CompositeListAdapter adapter = new CompositeListAdapter(); 122 assertEquals(0, adapter.getCount()); 123 124 adapter.addAdapter(mAdapter1); 125 assertEquals(2, adapter.getCount()); 126 127 adapter.addAdapter(mAdapter2); 128 assertEquals(2, adapter.getCount()); 129 130 adapter.addAdapter(mAdapter3); 131 assertEquals(5, adapter.getCount()); 132 } 133 134 public void testGetItem() { 135 CompositeListAdapter adapter = new CompositeListAdapter(); 136 adapter.addAdapter(mAdapter1); 137 adapter.addAdapter(mAdapter2); 138 adapter.addAdapter(mAdapter3); 139 140 assertEquals("A", adapter.getItem(0)); 141 assertEquals("B", adapter.getItem(1)); 142 assertEquals("C", adapter.getItem(2)); 143 assertEquals("D", adapter.getItem(3)); 144 assertEquals("E", adapter.getItem(4)); 145 } 146 147 public void testGetItemId() { 148 CompositeListAdapter adapter = new CompositeListAdapter(); 149 adapter.addAdapter(mAdapter1); 150 adapter.addAdapter(mAdapter2); 151 adapter.addAdapter(mAdapter3); 152 153 assertEquals(0, adapter.getItemId(0)); 154 assertEquals(1, adapter.getItemId(1)); 155 assertEquals(0, adapter.getItemId(2)); 156 assertEquals(1, adapter.getItemId(3)); 157 assertEquals(2, adapter.getItemId(4)); 158 } 159 160 public void testGetView() { 161 CompositeListAdapter adapter = new CompositeListAdapter(); 162 adapter.addAdapter(mAdapter1); 163 adapter.addAdapter(mAdapter2); 164 adapter.addAdapter(mAdapter3); 165 166 assertEquals(0, adapter.getView(0, null, null).getTag()); 167 assertEquals(1, adapter.getView(1, null, null).getTag()); 168 assertEquals(0, adapter.getView(2, null, null).getTag()); 169 assertEquals(1, adapter.getView(3, null, null).getTag()); 170 assertEquals(2, adapter.getView(4, null, null).getTag()); 171 } 172 173 public void testGetViewTypeCount() { 174 mAdapter1.viewTypeCount = 2; 175 mAdapter2.viewTypeCount = 3; 176 CompositeListAdapter adapter = new CompositeListAdapter(); 177 adapter.addAdapter(mAdapter1); 178 adapter.addAdapter(mAdapter2); 179 adapter.addAdapter(mAdapter3); 180 181 // Note that mAdapter2 adds an implicit +1 182 assertEquals(6, adapter.getViewTypeCount()); 183 } 184 185 public void testGetItemViewType() { 186 mAdapter1.viewTypeCount = 2; 187 mAdapter1.viewTypes.put(0, 1); 188 mAdapter1.viewTypes.put(1, 0); 189 190 mAdapter3.viewTypeCount = 3; 191 mAdapter3.viewTypes.put(0, 1); 192 mAdapter3.viewTypes.put(1, 2); 193 mAdapter3.viewTypes.put(2, 0); 194 195 CompositeListAdapter adapter = new CompositeListAdapter(); 196 adapter.addAdapter(mAdapter1); 197 adapter.addAdapter(mAdapter2); 198 adapter.addAdapter(mAdapter3); 199 200 assertEquals(1, adapter.getItemViewType(0)); 201 assertEquals(0, adapter.getItemViewType(1)); 202 203 // Note: mAdapter2 throws in a +1 204 205 assertEquals(4, adapter.getItemViewType(2)); 206 assertEquals(5, adapter.getItemViewType(3)); 207 assertEquals(3, adapter.getItemViewType(4)); 208 } 209 210 public void testNotifyDataSetChangedPropagated() { 211 CompositeListAdapter adapter = new CompositeListAdapter(); 212 adapter.addAdapter(mAdapter1); 213 adapter.addAdapter(mAdapter2); 214 215 TestDataSetObserver observer = new TestDataSetObserver(); 216 adapter.registerDataSetObserver(observer); 217 mAdapter1.add("X"); 218 219 assertEquals(1, observer.changeCount); 220 assertEquals(0, observer.invalidationCount); 221 assertEquals(3, adapter.getCount()); 222 assertEquals("A", adapter.getItem(0)); 223 assertEquals("B", adapter.getItem(1)); 224 assertEquals("X", adapter.getItem(2)); 225 226 mAdapter2.add("Y"); 227 assertEquals(2, observer.changeCount); 228 assertEquals(0, observer.invalidationCount); 229 assertEquals(4, adapter.getCount()); 230 assertEquals("A", adapter.getItem(0)); 231 assertEquals("B", adapter.getItem(1)); 232 assertEquals("X", adapter.getItem(2)); 233 assertEquals("Y", adapter.getItem(3)); 234 235 } 236 237 public void testNotifyDataSetChangedOnAddingAdapter() { 238 CompositeListAdapter adapter = new CompositeListAdapter(); 239 adapter.addAdapter(mAdapter1); 240 241 TestDataSetObserver observer = new TestDataSetObserver(); 242 adapter.registerDataSetObserver(observer); 243 adapter.addAdapter(mAdapter3); 244 245 assertEquals(1, observer.changeCount); 246 assertEquals(0, observer.invalidationCount); 247 assertEquals(5, adapter.getCount()); 248 assertEquals("A", adapter.getItem(0)); 249 assertEquals("B", adapter.getItem(1)); 250 assertEquals("C", adapter.getItem(2)); 251 assertEquals("D", adapter.getItem(3)); 252 assertEquals("E", adapter.getItem(4)); 253 } 254 255 public void testNotifyDataSetInvalidated() { 256 CompositeListAdapter adapter = new CompositeListAdapter(); 257 adapter.addAdapter(mAdapter1); 258 259 TestDataSetObserver observer = new TestDataSetObserver(); 260 adapter.registerDataSetObserver(observer); 261 262 mAdapter1.remove("A"); 263 assertEquals(1, observer.changeCount); 264 assertEquals(0, observer.invalidationCount); 265 assertEquals(1, adapter.getCount()); 266 267 mAdapter1.remove("B"); 268 assertEquals(1, observer.changeCount); 269 assertEquals(1, observer.invalidationCount); 270 assertEquals(0, adapter.getCount()); 271 } 272 273 public void testAreAllItemsEnabled() { 274 CompositeListAdapter adapter = new CompositeListAdapter(); 275 adapter.addAdapter(mAdapter1); 276 adapter.addAdapter(mAdapter3); 277 278 assertTrue(adapter.areAllItemsEnabled()); 279 } 280 281 public void testAreAllItemsEnabledWithInvalidation() { 282 CompositeListAdapter adapter = new CompositeListAdapter(); 283 adapter.addAdapter(mAdapter1); 284 assertTrue(adapter.areAllItemsEnabled()); 285 286 mAdapter3.allItemsEnabled = false; 287 adapter.addAdapter(mAdapter3); 288 289 assertFalse(adapter.areAllItemsEnabled()); 290 } 291 292 public void testIsEnabled() { 293 mAdapter1.allItemsEnabled = false; 294 mAdapter1.enabledItems.add(1); 295 296 CompositeListAdapter adapter = new CompositeListAdapter(); 297 adapter.addAdapter(mAdapter1); 298 adapter.addAdapter(mAdapter2); 299 adapter.addAdapter(mAdapter3); 300 301 assertFalse(adapter.isEnabled(0)); 302 assertTrue(adapter.isEnabled(1)); 303 assertTrue(adapter.isEnabled(2)); 304 assertTrue(adapter.isEnabled(3)); 305 assertTrue(adapter.isEnabled(4)); 306 } 307 308 public void testIsEnabledWhenAllEnabledAtLeastOneAdapter() { 309 mAdapter1.allItemsEnabled = false; 310 mAdapter1.enabledItems.add(1); 311 mAdapter3.allItemsEnabled = false; 312 mAdapter3.enabledItems.add(1); 313 314 CompositeListAdapter adapter = new CompositeListAdapter(); 315 adapter.addAdapter(mAdapter1); 316 adapter.addAdapter(mAdapter3); 317 318 assertFalse(adapter.isEnabled(0)); 319 assertTrue(adapter.isEnabled(1)); 320 assertFalse(adapter.isEnabled(2)); 321 assertTrue(adapter.isEnabled(3)); 322 assertFalse(adapter.isEnabled(4)); 323 } 324 } 325
