Joshua Tsuji | cb9312f | 2020-02-13 03:22:56 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 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.systemui.util.magnetictarget |
| 17 | |
| 18 | import android.testing.AndroidTestingRunner |
| 19 | import android.testing.TestableLooper |
| 20 | import android.view.MotionEvent |
| 21 | import android.view.View |
| 22 | import androidx.dynamicanimation.animation.FloatPropertyCompat |
| 23 | import androidx.test.filters.SmallTest |
| 24 | import com.android.systemui.SysuiTestCase |
| 25 | import com.android.systemui.util.animation.PhysicsAnimatorTestUtils |
| 26 | import org.junit.Assert.assertEquals |
| 27 | import org.junit.Assert.assertFalse |
| 28 | import org.junit.Assert.assertTrue |
| 29 | import org.junit.Before |
| 30 | import org.junit.Test |
| 31 | import org.junit.runner.RunWith |
| 32 | import org.mockito.ArgumentMatchers |
| 33 | import org.mockito.ArgumentMatchers.anyFloat |
| 34 | import org.mockito.Mockito |
| 35 | import org.mockito.Mockito.`when` |
| 36 | import org.mockito.Mockito.doAnswer |
| 37 | import org.mockito.Mockito.mock |
| 38 | import org.mockito.Mockito.never |
| 39 | import org.mockito.Mockito.times |
| 40 | import org.mockito.Mockito.verify |
| 41 | import org.mockito.Mockito.verifyNoMoreInteractions |
| 42 | |
| 43 | @TestableLooper.RunWithLooper |
| 44 | @RunWith(AndroidTestingRunner::class) |
| 45 | @SmallTest |
| 46 | class MagnetizedObjectTest : SysuiTestCase() { |
| 47 | /** Incrementing value for fake MotionEvent timestamps. */ |
| 48 | private var time = 0L |
| 49 | |
| 50 | /** Value to add to each new MotionEvent's timestamp. */ |
| 51 | private var timeStep = 100 |
| 52 | |
| 53 | private val underlyingObject = this |
| 54 | |
| 55 | private lateinit var targetView: View |
| 56 | |
| 57 | private val targetSize = 200 |
| 58 | private val targetCenterX = 500 |
| 59 | private val targetCenterY = 900 |
| 60 | private val magneticFieldRadius = 200 |
| 61 | |
| 62 | private var objectX = 0f |
| 63 | private var objectY = 0f |
| 64 | private val objectSize = 50f |
| 65 | |
| 66 | private lateinit var magneticTarget: MagnetizedObject.MagneticTarget |
| 67 | private lateinit var magnetizedObject: MagnetizedObject<*> |
| 68 | private lateinit var magnetListener: MagnetizedObject.MagnetListener |
| 69 | |
| 70 | private val xProperty = object : FloatPropertyCompat<MagnetizedObjectTest>("") { |
| 71 | override fun setValue(target: MagnetizedObjectTest?, value: Float) { |
| 72 | objectX = value |
| 73 | } |
| 74 | override fun getValue(target: MagnetizedObjectTest?): Float { |
| 75 | return objectX |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | private val yProperty = object : FloatPropertyCompat<MagnetizedObjectTest>("") { |
| 80 | override fun setValue(target: MagnetizedObjectTest?, value: Float) { |
| 81 | objectY = value |
| 82 | } |
| 83 | |
| 84 | override fun getValue(target: MagnetizedObjectTest?): Float { |
| 85 | return objectY |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | @Before |
| 90 | fun setup() { |
| 91 | PhysicsAnimatorTestUtils.prepareForTest() |
| 92 | |
| 93 | // Mock the view since a real view's getLocationOnScreen() won't work unless it's attached |
| 94 | // to a real window (it'll always return x = 0, y = 0). |
| 95 | targetView = mock(View::class.java) |
| 96 | `when`(targetView.context).thenReturn(context) |
| 97 | |
| 98 | // The mock target view will pretend that it's 200x200, and at (400, 800). This means it's |
| 99 | // occupying the bounds (400, 800, 600, 1000) and it has a center of (500, 900). |
| 100 | `when`(targetView.width).thenReturn(targetSize) // width = 200 |
| 101 | `when`(targetView.height).thenReturn(targetSize) // height = 200 |
| 102 | doAnswer { invocation -> |
| 103 | (invocation.arguments[0] as IntArray).also { location -> |
| 104 | // Return the top left of the target. |
| 105 | location[0] = targetCenterX - targetSize / 2 // x = 400 |
| 106 | location[1] = targetCenterY - targetSize / 2 // y = 800 |
| 107 | } |
| 108 | }.`when`(targetView).getLocationOnScreen(ArgumentMatchers.any()) |
Joshua Tsuji | f39539d | 2020-04-03 18:53:06 -0400 | [diff] [blame] | 109 | doAnswer { invocation -> |
| 110 | (invocation.arguments[0] as Runnable).run() |
| 111 | true |
| 112 | }.`when`(targetView).post(ArgumentMatchers.any()) |
Joshua Tsuji | cb9312f | 2020-02-13 03:22:56 -0500 | [diff] [blame] | 113 | `when`(targetView.context).thenReturn(context) |
| 114 | |
| 115 | magneticTarget = MagnetizedObject.MagneticTarget(targetView, magneticFieldRadius) |
| 116 | |
| 117 | magnetListener = mock(MagnetizedObject.MagnetListener::class.java) |
| 118 | magnetizedObject = object : MagnetizedObject<MagnetizedObjectTest>( |
| 119 | context, underlyingObject, xProperty, yProperty) { |
| 120 | override fun getWidth(underlyingObject: MagnetizedObjectTest): Float { |
| 121 | return objectSize |
| 122 | } |
| 123 | |
| 124 | override fun getHeight(underlyingObject: MagnetizedObjectTest): Float { |
| 125 | return objectSize |
| 126 | } |
| 127 | |
| 128 | override fun getLocationOnScreen( |
| 129 | underlyingObject: MagnetizedObjectTest, |
| 130 | loc: IntArray |
| 131 | ) { |
| 132 | loc[0] = objectX.toInt() |
| 133 | loc[1] = objectY.toInt() } |
| 134 | } |
| 135 | |
| 136 | magnetizedObject.magnetListener = magnetListener |
| 137 | magnetizedObject.addTarget(magneticTarget) |
| 138 | |
| 139 | timeStep = 100 |
| 140 | } |
| 141 | |
| 142 | @Test |
| 143 | fun testMotionEventConsumption() { |
| 144 | // Start at (0, 0). No magnetic field here. |
| 145 | assertFalse(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 146 | x = 0, y = 0, action = MotionEvent.ACTION_DOWN))) |
| 147 | |
| 148 | // Move to (400, 400), which is solidly outside the magnetic field. |
| 149 | assertFalse(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 150 | x = 200, y = 200))) |
| 151 | |
| 152 | // Move to (305, 705). This would be in the magnetic field radius if magnetic fields were |
| 153 | // square. It's not, because they're not. |
| 154 | assertFalse(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 155 | x = targetCenterX - magneticFieldRadius + 5, |
| 156 | y = targetCenterY - magneticFieldRadius + 5))) |
| 157 | |
| 158 | // Move to (400, 800). That's solidly in the radius so the magnetic target should begin |
| 159 | // consuming events. |
| 160 | assertTrue(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 161 | x = targetCenterX - 100, |
| 162 | y = targetCenterY - 100))) |
| 163 | |
| 164 | // Release at (400, 800). Since we're in the magnetic target, it should return true and |
| 165 | // consume the ACTION_UP. |
| 166 | assertTrue(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 167 | x = 400, y = 800, action = MotionEvent.ACTION_UP))) |
| 168 | |
| 169 | // ACTION_DOWN outside the field. |
| 170 | assertFalse(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 171 | x = 200, y = 200, action = MotionEvent.ACTION_DOWN))) |
| 172 | |
| 173 | // Move to the center. We absolutely should consume events there. |
| 174 | assertTrue(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 175 | x = targetCenterX, |
| 176 | y = targetCenterY))) |
| 177 | |
| 178 | // Drag out to (0, 0) and we should be returning false again. |
| 179 | assertFalse(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 180 | x = 0, y = 0))) |
| 181 | |
| 182 | // The ACTION_UP event shouldn't be consumed either since it's outside the field. |
| 183 | assertFalse(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 184 | x = 0, y = 0, action = MotionEvent.ACTION_UP))) |
| 185 | } |
| 186 | |
| 187 | @Test |
| 188 | fun testMotionEventConsumption_downInMagneticField() { |
| 189 | // We should consume DOWN events if they occur in the field. |
| 190 | assertTrue(magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 191 | x = targetCenterX, y = targetCenterY, action = MotionEvent.ACTION_DOWN))) |
| 192 | } |
| 193 | |
| 194 | @Test |
| 195 | fun testMoveIntoAroundAndOutOfMagneticField() { |
| 196 | // Move around but don't touch the magnetic field. |
| 197 | dispatchMotionEvents( |
| 198 | getMotionEvent(x = 0, y = 0, action = MotionEvent.ACTION_DOWN), |
| 199 | getMotionEvent(x = 100, y = 100), |
| 200 | getMotionEvent(x = 200, y = 200)) |
| 201 | |
| 202 | // You can't become unstuck if you were never stuck in the first place. |
| 203 | verify(magnetListener, never()).onStuckToTarget(magneticTarget) |
| 204 | verify(magnetListener, never()).onUnstuckFromTarget( |
| 205 | eq(magneticTarget), ArgumentMatchers.anyFloat(), ArgumentMatchers.anyFloat(), |
| 206 | eq(false)) |
| 207 | |
| 208 | // Move into and then around inside the magnetic field. |
| 209 | dispatchMotionEvents( |
| 210 | getMotionEvent(x = targetCenterX - 100, y = targetCenterY - 100), |
| 211 | getMotionEvent(x = targetCenterX, y = targetCenterY), |
| 212 | getMotionEvent(x = targetCenterX + 100, y = targetCenterY + 100)) |
| 213 | |
| 214 | // We should only have received one call to onStuckToTarget and none to unstuck. |
| 215 | verify(magnetListener, times(1)).onStuckToTarget(magneticTarget) |
| 216 | verify(magnetListener, never()).onUnstuckFromTarget( |
| 217 | eq(magneticTarget), ArgumentMatchers.anyFloat(), ArgumentMatchers.anyFloat(), |
| 218 | eq(false)) |
| 219 | |
| 220 | // Move out of the field and then release. |
| 221 | dispatchMotionEvents( |
| 222 | getMotionEvent(x = 100, y = 100), |
| 223 | getMotionEvent(x = 100, y = 100, action = MotionEvent.ACTION_UP)) |
| 224 | |
| 225 | // We should have received one unstuck call and no more stuck calls. We also should never |
| 226 | // have received an onReleasedInTarget call. |
| 227 | verify(magnetListener, times(1)).onUnstuckFromTarget( |
| 228 | eq(magneticTarget), ArgumentMatchers.anyFloat(), ArgumentMatchers.anyFloat(), |
| 229 | eq(false)) |
| 230 | verifyNoMoreInteractions(magnetListener) |
| 231 | } |
| 232 | |
| 233 | @Test |
| 234 | fun testMoveIntoOutOfAndBackIntoMagneticField() { |
| 235 | // Move into the field |
| 236 | dispatchMotionEvents( |
| 237 | getMotionEvent( |
| 238 | x = targetCenterX - magneticFieldRadius, |
| 239 | y = targetCenterY - magneticFieldRadius, |
| 240 | action = MotionEvent.ACTION_DOWN), |
| 241 | getMotionEvent( |
| 242 | x = targetCenterX, y = targetCenterY)) |
| 243 | |
| 244 | verify(magnetListener, times(1)).onStuckToTarget(magneticTarget) |
| 245 | verify(magnetListener, never()).onReleasedInTarget(magneticTarget) |
| 246 | |
| 247 | // Move back out. |
| 248 | dispatchMotionEvents( |
| 249 | getMotionEvent( |
| 250 | x = targetCenterX - magneticFieldRadius, |
| 251 | y = targetCenterY - magneticFieldRadius)) |
| 252 | |
| 253 | verify(magnetListener, times(1)).onUnstuckFromTarget( |
| 254 | eq(magneticTarget), ArgumentMatchers.anyFloat(), ArgumentMatchers.anyFloat(), |
| 255 | eq(false)) |
| 256 | verify(magnetListener, never()).onReleasedInTarget(magneticTarget) |
| 257 | |
| 258 | // Move in again and release in the magnetic field. |
| 259 | dispatchMotionEvents( |
| 260 | getMotionEvent(x = targetCenterX - 100, y = targetCenterY - 100), |
| 261 | getMotionEvent(x = targetCenterX + 50, y = targetCenterY + 50), |
| 262 | getMotionEvent(x = targetCenterX, y = targetCenterY), |
| 263 | getMotionEvent( |
| 264 | x = targetCenterX, y = targetCenterY, action = MotionEvent.ACTION_UP)) |
| 265 | |
| 266 | verify(magnetListener, times(2)).onStuckToTarget(magneticTarget) |
| 267 | verify(magnetListener).onReleasedInTarget(magneticTarget) |
| 268 | verifyNoMoreInteractions(magnetListener) |
| 269 | } |
| 270 | |
| 271 | @Test |
| 272 | fun testFlingTowardsTarget_towardsTarget() { |
| 273 | timeStep = 10 |
| 274 | |
| 275 | // Forcefully fling the object towards the target (but never touch the magnetic field). |
| 276 | dispatchMotionEvents( |
| 277 | getMotionEvent( |
| 278 | x = targetCenterX, |
| 279 | y = 0, |
| 280 | action = MotionEvent.ACTION_DOWN), |
| 281 | getMotionEvent( |
| 282 | x = targetCenterX, |
| 283 | y = targetCenterY / 2), |
| 284 | getMotionEvent( |
| 285 | x = targetCenterX, |
| 286 | y = targetCenterY - magneticFieldRadius * 2, |
| 287 | action = MotionEvent.ACTION_UP)) |
| 288 | |
| 289 | // Nevertheless it should have ended up stuck to the target. |
| 290 | verify(magnetListener, times(1)).onStuckToTarget(magneticTarget) |
| 291 | } |
| 292 | |
| 293 | @Test |
| 294 | fun testFlingTowardsTarget_towardsButTooSlow() { |
| 295 | // Very, very slowly fling the object towards the target (but never touch the magnetic |
| 296 | // field). This value is only used to create MotionEvent timestamps, it will not block the |
| 297 | // test for 10 seconds. |
| 298 | timeStep = 10000 |
| 299 | dispatchMotionEvents( |
| 300 | getMotionEvent( |
| 301 | x = targetCenterX, |
| 302 | y = 0, |
| 303 | action = MotionEvent.ACTION_DOWN), |
| 304 | getMotionEvent( |
| 305 | x = targetCenterX, |
| 306 | y = targetCenterY / 2), |
| 307 | getMotionEvent( |
| 308 | x = targetCenterX, |
| 309 | y = targetCenterY - magneticFieldRadius * 2, |
| 310 | action = MotionEvent.ACTION_UP)) |
| 311 | |
| 312 | // No sticking should have occurred. |
| 313 | verifyNoMoreInteractions(magnetListener) |
| 314 | } |
| 315 | |
| 316 | @Test |
| 317 | fun testFlingTowardsTarget_missTarget() { |
| 318 | timeStep = 10 |
| 319 | // Forcefully fling the object down, but not towards the target. |
| 320 | dispatchMotionEvents( |
| 321 | getMotionEvent( |
| 322 | x = 0, |
| 323 | y = 0, |
| 324 | action = MotionEvent.ACTION_DOWN), |
| 325 | getMotionEvent( |
| 326 | x = 0, |
| 327 | y = targetCenterY / 2), |
| 328 | getMotionEvent( |
| 329 | x = 0, |
| 330 | y = targetCenterY - magneticFieldRadius * 2, |
| 331 | action = MotionEvent.ACTION_UP)) |
| 332 | |
| 333 | verifyNoMoreInteractions(magnetListener) |
| 334 | } |
| 335 | |
| 336 | @Test |
| 337 | fun testMagnetAnimation() { |
| 338 | // Make sure the object starts at (0, 0). |
| 339 | assertEquals(0f, objectX) |
| 340 | assertEquals(0f, objectY) |
| 341 | |
| 342 | // Trigger the magnet animation, and block the test until it ends. |
| 343 | PhysicsAnimatorTestUtils.setAllAnimationsBlock(true) |
| 344 | magnetizedObject.maybeConsumeMotionEvent(getMotionEvent( |
| 345 | x = targetCenterX, |
| 346 | y = targetCenterY, |
| 347 | action = MotionEvent.ACTION_DOWN)) |
| 348 | |
| 349 | // The object's (top-left) position should now position it centered over the target. |
| 350 | assertEquals(targetCenterX - objectSize / 2, objectX) |
| 351 | assertEquals(targetCenterY - objectSize / 2, objectY) |
| 352 | } |
| 353 | |
| 354 | @Test |
| 355 | fun testMultipleTargets() { |
| 356 | val secondMagneticTarget = getSecondMagneticTarget() |
| 357 | |
| 358 | // Drag into the second target. |
| 359 | dispatchMotionEvents( |
| 360 | getMotionEvent(x = 0, y = 0, action = MotionEvent.ACTION_DOWN), |
| 361 | getMotionEvent(x = 100, y = 900)) |
| 362 | |
| 363 | // Verify that we received an onStuck for the second target, and no others. |
| 364 | verify(magnetListener).onStuckToTarget(secondMagneticTarget) |
| 365 | verifyNoMoreInteractions(magnetListener) |
| 366 | |
| 367 | // Drag into the original target. |
| 368 | dispatchMotionEvents( |
| 369 | getMotionEvent(x = 0, y = 0), |
| 370 | getMotionEvent(x = 500, y = 900)) |
| 371 | |
| 372 | // We should have unstuck from the second one and stuck into the original one. |
| 373 | verify(magnetListener).onUnstuckFromTarget( |
| 374 | eq(secondMagneticTarget), anyFloat(), anyFloat(), eq(false)) |
| 375 | verify(magnetListener).onStuckToTarget(magneticTarget) |
| 376 | verifyNoMoreInteractions(magnetListener) |
| 377 | } |
| 378 | |
| 379 | @Test |
| 380 | fun testMultipleTargets_flingIntoSecond() { |
| 381 | val secondMagneticTarget = getSecondMagneticTarget() |
| 382 | |
| 383 | timeStep = 10 |
| 384 | |
| 385 | // Fling towards the second target. |
| 386 | dispatchMotionEvents( |
| 387 | getMotionEvent(x = 100, y = 0, action = MotionEvent.ACTION_DOWN), |
| 388 | getMotionEvent(x = 100, y = 350), |
| 389 | getMotionEvent(x = 100, y = 650, action = MotionEvent.ACTION_UP)) |
| 390 | |
| 391 | // Verify that we received an onStuck for the second target. |
| 392 | verify(magnetListener).onStuckToTarget(secondMagneticTarget) |
| 393 | |
| 394 | // Fling towards the first target. |
| 395 | dispatchMotionEvents( |
| 396 | getMotionEvent(x = 300, y = 0, action = MotionEvent.ACTION_DOWN), |
| 397 | getMotionEvent(x = 400, y = 350), |
| 398 | getMotionEvent(x = 500, y = 650, action = MotionEvent.ACTION_UP)) |
| 399 | |
| 400 | // Verify that we received onStuck for the original target. |
| 401 | verify(magnetListener).onStuckToTarget(magneticTarget) |
| 402 | } |
| 403 | |
| 404 | private fun getSecondMagneticTarget(): MagnetizedObject.MagneticTarget { |
| 405 | // The first target view is at bounds (400, 800, 600, 1000) and it has a center of |
| 406 | // (500, 900). We'll add a second one at bounds (0, 800, 200, 1000) with center (100, 900). |
| 407 | val secondTargetView = mock(View::class.java) |
| 408 | var secondTargetCenterX = 100 |
| 409 | var secondTargetCenterY = 900 |
| 410 | |
| 411 | `when`(secondTargetView.context).thenReturn(context) |
| 412 | `when`(secondTargetView.width).thenReturn(targetSize) // width = 200 |
| 413 | `when`(secondTargetView.height).thenReturn(targetSize) // height = 200 |
| 414 | doAnswer { invocation -> |
Joshua Tsuji | f39539d | 2020-04-03 18:53:06 -0400 | [diff] [blame] | 415 | (invocation.arguments[0] as Runnable).run() |
| 416 | true |
| 417 | }.`when`(secondTargetView).post(ArgumentMatchers.any()) |
| 418 | doAnswer { invocation -> |
Joshua Tsuji | cb9312f | 2020-02-13 03:22:56 -0500 | [diff] [blame] | 419 | (invocation.arguments[0] as IntArray).also { location -> |
| 420 | // Return the top left of the target. |
| 421 | location[0] = secondTargetCenterX - targetSize / 2 // x = 0 |
| 422 | location[1] = secondTargetCenterY - targetSize / 2 // y = 800 |
| 423 | } |
| 424 | }.`when`(secondTargetView).getLocationOnScreen(ArgumentMatchers.any()) |
| 425 | |
| 426 | return magnetizedObject.addTarget(secondTargetView, magneticFieldRadius) |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Return a MotionEvent at the given coordinates, with the given action (or MOVE by default). |
| 431 | * The event's time fields will be incremented by 10ms each time this is called, so tha |
| 432 | * VelocityTracker works. |
| 433 | */ |
| 434 | private fun getMotionEvent( |
| 435 | x: Int, |
| 436 | y: Int, |
| 437 | action: Int = MotionEvent.ACTION_MOVE |
| 438 | ): MotionEvent { |
| 439 | return MotionEvent.obtain(time, time, action, x.toFloat(), y.toFloat(), 0) |
| 440 | .also { time += timeStep } |
| 441 | } |
| 442 | |
| 443 | /** Dispatch all of the provided events to the target view. */ |
| 444 | private fun dispatchMotionEvents(vararg events: MotionEvent) { |
| 445 | events.forEach { magnetizedObject.maybeConsumeMotionEvent(it) } |
| 446 | } |
| 447 | |
| 448 | /** Prevents Kotlin from being mad that eq() is nullable. */ |
| 449 | private fun <T> eq(value: T): T = Mockito.eq(value) ?: value |
| 450 | } |