1 /* 2 * Copyright 2018 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 androidx.core.view; 17 18 import static org.junit.Assert.assertEquals; 19 20 import android.graphics.Rect; 21 import android.os.Build; 22 import android.support.test.filters.SmallTest; 23 import android.support.test.runner.AndroidJUnit4; 24 import android.support.v4.testutils.TestUtils; 25 import android.view.Gravity; 26 27 import org.junit.Test; 28 import org.junit.runner.RunWith; 29 30 @RunWith(AndroidJUnit4.class) 31 @SmallTest 32 public class GravityCompatTest { 33 @Test 34 public void testConstants() { 35 // Compat constants must match core constants since they can be OR'd with 36 // other core constants. 37 assertEquals("Start constants", Gravity.START, GravityCompat.START); 38 assertEquals("End constants", Gravity.END, GravityCompat.END); 39 } 40 41 @Test 42 public void testGetAbsoluteGravity() { 43 assertEquals("Left under LTR", 44 GravityCompat.getAbsoluteGravity(Gravity.LEFT, ViewCompat.LAYOUT_DIRECTION_LTR), 45 Gravity.LEFT); 46 assertEquals("Right under LTR", 47 GravityCompat.getAbsoluteGravity(Gravity.RIGHT, ViewCompat.LAYOUT_DIRECTION_LTR), 48 Gravity.RIGHT); 49 assertEquals("Left under RTL", 50 GravityCompat.getAbsoluteGravity(Gravity.LEFT, ViewCompat.LAYOUT_DIRECTION_RTL), 51 Gravity.LEFT); 52 assertEquals("Right under RTL", 53 GravityCompat.getAbsoluteGravity(Gravity.RIGHT, ViewCompat.LAYOUT_DIRECTION_RTL), 54 Gravity.RIGHT); 55 56 assertEquals("Start under LTR", 57 GravityCompat.getAbsoluteGravity(GravityCompat.START, 58 ViewCompat.LAYOUT_DIRECTION_LTR), 59 Gravity.LEFT); 60 assertEquals("End under LTR", 61 GravityCompat.getAbsoluteGravity(GravityCompat.END, 62 ViewCompat.LAYOUT_DIRECTION_LTR), 63 Gravity.RIGHT); 64 65 if (Build.VERSION.SDK_INT >= 17) { 66 // The following tests are only expected to pass on v17+ devices 67 assertEquals("Start under RTL", 68 GravityCompat.getAbsoluteGravity(GravityCompat.START, 69 ViewCompat.LAYOUT_DIRECTION_RTL), 70 Gravity.RIGHT); 71 assertEquals("End under RTL", 72 GravityCompat.getAbsoluteGravity(GravityCompat.END, 73 ViewCompat.LAYOUT_DIRECTION_RTL), 74 Gravity.LEFT); 75 } else { 76 // And on older devices START is always LEFT, END is always RIGHT 77 assertEquals("Start under RTL", 78 GravityCompat.getAbsoluteGravity(GravityCompat.START, 79 ViewCompat.LAYOUT_DIRECTION_RTL), 80 Gravity.LEFT); 81 assertEquals("End under RTL", 82 GravityCompat.getAbsoluteGravity(GravityCompat.END, 83 ViewCompat.LAYOUT_DIRECTION_RTL), 84 Gravity.RIGHT); 85 } 86 } 87 88 @Test 89 public void testApplyNoOffsetsLtr() { 90 Rect outRect = new Rect(); 91 92 // Left / top aligned under LTR direction 93 GravityCompat.apply(Gravity.LEFT | Gravity.TOP, 100, 50, 94 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 95 TestUtils.assertRectangleBounds("Left / top aligned under LTR: ", 96 outRect, 0, 0, 100, 50); 97 98 // Center / top aligned under LTR direction 99 GravityCompat.apply(Gravity.CENTER_HORIZONTAL | Gravity.TOP, 100, 50, 100 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 101 TestUtils.assertRectangleBounds("Center / top aligned under LTR: ", 102 outRect, 50, 0, 150, 50); 103 104 // Right / top aligned under LTR direction 105 GravityCompat.apply(Gravity.RIGHT | Gravity.TOP, 100, 50, 106 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 107 TestUtils.assertRectangleBounds("Right / top aligned under LTR: ", 108 outRect, 100, 0, 200, 50); 109 110 // Left / center aligned under LTR direction 111 GravityCompat.apply(Gravity.LEFT | Gravity.CENTER_VERTICAL, 100, 50, 112 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 113 TestUtils.assertRectangleBounds("Left / center aligned under LTR: ", 114 outRect, 0, 25, 100, 75); 115 116 // Center / center aligned under LTR direction 117 GravityCompat.apply(Gravity.CENTER, 100, 50, 118 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 119 TestUtils.assertRectangleBounds("Center / center aligned under LTR: ", 120 outRect, 50, 25, 150, 75); 121 122 // Right / center aligned under LTR direction 123 GravityCompat.apply(Gravity.RIGHT | Gravity.CENTER_VERTICAL, 100, 50, 124 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 125 TestUtils.assertRectangleBounds("Right / center aligned under LTR: ", 126 outRect, 100, 25, 200, 75); 127 128 // Left / bottom aligned under LTR direction 129 GravityCompat.apply(Gravity.LEFT | Gravity.BOTTOM, 100, 50, 130 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 131 TestUtils.assertRectangleBounds("Left / bottom aligned under LTR: ", 132 outRect, 0, 50, 100, 100); 133 134 // Center / bottom aligned under LTR direction 135 GravityCompat.apply(Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM, 100, 50, 136 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 137 TestUtils.assertRectangleBounds("Center / bottom aligned under LTR: ", 138 outRect, 50, 50, 150, 100); 139 140 // Right / bottom aligned under LTR direction 141 GravityCompat.apply(Gravity.RIGHT | Gravity.BOTTOM, 100, 50, 142 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 143 TestUtils.assertRectangleBounds("Right / bottom aligned under LTR: ", 144 outRect, 100, 50, 200, 100); 145 146 // The following tests are expected to pass on all devices since START under LTR is LEFT 147 // and END under LTR is RIGHT on pre-v17 and v17+ versions of the platform. 148 149 // Start / top aligned under LTR direction 150 GravityCompat.apply(GravityCompat.START | Gravity.TOP, 100, 50, 151 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 152 TestUtils.assertRectangleBounds("Start / top aligned under LTR: ", 153 outRect, 0, 0, 100, 50); 154 155 // End / top aligned under LTR direction 156 GravityCompat.apply(GravityCompat.END | Gravity.TOP, 100, 50, 157 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 158 TestUtils.assertRectangleBounds("End / top aligned under LTR: ", 159 outRect, 100, 0, 200, 50); 160 161 // Start / center aligned under LTR direction 162 GravityCompat.apply(GravityCompat.START | Gravity.CENTER_VERTICAL, 100, 50, 163 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 164 TestUtils.assertRectangleBounds("Start / center aligned under LTR: ", 165 outRect, 0, 25, 100, 75); 166 167 // End / center aligned under LTR direction 168 GravityCompat.apply(GravityCompat.END | Gravity.CENTER_VERTICAL, 100, 50, 169 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 170 TestUtils.assertRectangleBounds("End / center aligned under LTR: ", 171 outRect, 100, 25, 200, 75); 172 173 // Start / bottom aligned under LTR direction 174 GravityCompat.apply(GravityCompat.START | Gravity.BOTTOM, 100, 50, 175 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 176 TestUtils.assertRectangleBounds("Start / bottom aligned under LTR: ", 177 outRect, 0, 50, 100, 100); 178 179 // End / bottom aligned under LTR direction 180 GravityCompat.apply(GravityCompat.END | Gravity.BOTTOM, 100, 50, 181 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 182 TestUtils.assertRectangleBounds("End / bottom aligned under LTR: ", 183 outRect, 100, 50, 200, 100); 184 } 185 186 @Test 187 public void testApplyNoOffsetsRtl() { 188 Rect outRect = new Rect(); 189 190 // The following tests are expected to pass on all devices since they are using 191 // Gravity constants that are not RTL-aware 192 193 // Left / top aligned under RTL direction 194 GravityCompat.apply(Gravity.LEFT | Gravity.TOP, 100, 50, 195 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 196 TestUtils.assertRectangleBounds("Left / top aligned under RTL: ", 197 outRect, 0, 0, 100, 50); 198 199 // Center / top aligned under RTL direction 200 GravityCompat.apply(Gravity.CENTER_HORIZONTAL | Gravity.TOP, 100, 50, 201 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 202 TestUtils.assertRectangleBounds("Center / top aligned under RTL: ", 203 outRect, 50, 0, 150, 50); 204 205 // Right / top aligned under RTL direction 206 GravityCompat.apply(Gravity.RIGHT | Gravity.TOP, 100, 50, 207 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 208 TestUtils.assertRectangleBounds("Right / top aligned under RTL: ", 209 outRect, 100, 0, 200, 50); 210 211 // Left / center aligned under RTL direction 212 GravityCompat.apply(Gravity.LEFT | Gravity.CENTER_VERTICAL, 100, 50, 213 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 214 TestUtils.assertRectangleBounds("Left / center aligned under RTL: ", 215 outRect, 0, 25, 100, 75); 216 217 // Center / center aligned under RTL direction 218 GravityCompat.apply(Gravity.CENTER, 100, 50, 219 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 220 TestUtils.assertRectangleBounds("Center / center aligned under RTL: ", 221 outRect, 50, 25, 150, 75); 222 223 // Right / center aligned under RTL direction 224 GravityCompat.apply(Gravity.RIGHT | Gravity.CENTER_VERTICAL, 100, 50, 225 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 226 TestUtils.assertRectangleBounds("Right / center aligned under RTL: ", 227 outRect, 100, 25, 200, 75); 228 229 // Left / bottom aligned under RTL direction 230 GravityCompat.apply(Gravity.LEFT | Gravity.BOTTOM, 100, 50, 231 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 232 TestUtils.assertRectangleBounds("Left / bottom aligned under RTL: ", 233 outRect, 0, 50, 100, 100); 234 235 // Center / bottom aligned under RTL direction 236 GravityCompat.apply(Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM, 100, 50, 237 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 238 TestUtils.assertRectangleBounds("Center / bottom aligned under RTL: ", 239 outRect, 50, 50, 150, 100); 240 241 // Right / bottom aligned under RTL direction 242 GravityCompat.apply(Gravity.RIGHT | Gravity.BOTTOM, 100, 50, 243 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 244 TestUtils.assertRectangleBounds("Right / bottom aligned under RTL: ", 245 outRect, 100, 50, 200, 100); 246 247 248 if (Build.VERSION.SDK_INT >= 17) { 249 // The following tests are only expected to pass on v17+ devices since START under 250 // RTL is RIGHT and END under RTL is LEFT only on those devices. 251 252 // Start / top aligned under RTL direction 253 GravityCompat.apply(GravityCompat.START | Gravity.TOP, 100, 50, 254 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 255 TestUtils.assertRectangleBounds("Start / top aligned under RTL: ", 256 outRect, 100, 0, 200, 50); 257 258 // End / top aligned under RTL direction 259 GravityCompat.apply(GravityCompat.END | Gravity.TOP, 100, 50, 260 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 261 TestUtils.assertRectangleBounds("End / top aligned under RTL: ", 262 outRect, 0, 0, 100, 50); 263 264 // Start / center aligned under RTL direction 265 GravityCompat.apply(GravityCompat.START | Gravity.CENTER_VERTICAL, 100, 50, 266 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 267 TestUtils.assertRectangleBounds("Start / center aligned under RTL: ", 268 outRect, 100, 25, 200, 75); 269 270 // End / center aligned under RTL direction 271 GravityCompat.apply(GravityCompat.END | Gravity.CENTER_VERTICAL, 100, 50, 272 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 273 TestUtils.assertRectangleBounds("End / center aligned under RTL: ", 274 outRect, 0, 25, 100, 75); 275 276 // Start / bottom aligned under RTL direction 277 GravityCompat.apply(GravityCompat.START | Gravity.BOTTOM, 100, 50, 278 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 279 TestUtils.assertRectangleBounds("Start / bottom aligned under RTL: ", 280 outRect, 100, 50, 200, 100); 281 282 // End / bottom aligned under RTL direction 283 GravityCompat.apply(GravityCompat.END | Gravity.BOTTOM, 100, 50, 284 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 285 TestUtils.assertRectangleBounds("End / bottom aligned under RTL: ", 286 outRect, 0, 50, 100, 100); 287 } else { 288 // And on older devices START is always LEFT, END is always RIGHT 289 290 // Start / top aligned under RTL direction 291 GravityCompat.apply(GravityCompat.START | Gravity.TOP, 100, 50, 292 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 293 TestUtils.assertRectangleBounds("Start / top aligned under RTL: ", 294 outRect, 0, 0, 100, 50); 295 296 // End / top aligned under RTL direction 297 GravityCompat.apply(GravityCompat.END | Gravity.TOP, 100, 50, 298 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 299 TestUtils.assertRectangleBounds("End / top aligned under RTL: ", 300 outRect, 100, 0, 200, 50); 301 302 // Start / center aligned under RTL direction 303 GravityCompat.apply(GravityCompat.START | Gravity.CENTER_VERTICAL, 100, 50, 304 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 305 TestUtils.assertRectangleBounds("Start / center aligned under RTL: ", 306 outRect, 0, 25, 100, 75); 307 308 // End / center aligned under RTL direction 309 GravityCompat.apply(GravityCompat.END | Gravity.CENTER_VERTICAL, 100, 50, 310 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 311 TestUtils.assertRectangleBounds("End / center aligned under RTL: ", 312 outRect, 100, 25, 200, 75); 313 314 // Start / bottom aligned under RTL direction 315 GravityCompat.apply(GravityCompat.START | Gravity.BOTTOM, 100, 50, 316 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 317 TestUtils.assertRectangleBounds("Start / bottom aligned under RTL: ", 318 outRect, 0, 50, 100, 100); 319 320 // End / bottom aligned under RTL direction 321 GravityCompat.apply(GravityCompat.END | Gravity.BOTTOM, 100, 50, 322 new Rect(0, 0, 200, 100), outRect, ViewCompat.LAYOUT_DIRECTION_RTL); 323 TestUtils.assertRectangleBounds("End / bottom aligned under RTL: ", 324 outRect, 100, 50, 200, 100); 325 } 326 } 327 } 328
