| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.ui.core.test |
| |
| import androidx.compose.FrameManager |
| import androidx.compose.MutableState |
| import androidx.compose.mutableStateOf |
| import androidx.test.filters.SmallTest |
| import androidx.test.rule.ActivityTestRule |
| import androidx.ui.core.Layout |
| import androidx.ui.core.Modifier |
| import androidx.ui.core.drawBehind |
| import androidx.ui.core.setContent |
| import androidx.ui.framework.test.TestActivity |
| import androidx.ui.unit.ipx |
| import org.junit.Assert.assertEquals |
| import org.junit.Assert.assertFalse |
| import org.junit.Assert.assertTrue |
| import org.junit.Before |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| import java.util.concurrent.CountDownLatch |
| import java.util.concurrent.TimeUnit |
| |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class ModelReadsTest { |
| |
| @get:Rule |
| val rule = ActivityTestRule<TestActivity>(TestActivity::class.java) |
| @get:Rule |
| val excessiveAssertions = AndroidOwnerExtraAssertionsRule() |
| private lateinit var activity: TestActivity |
| private lateinit var latch: CountDownLatch |
| |
| @Before |
| fun setup() { |
| activity = rule.activity |
| activity.hasFocusLatch.await(5, TimeUnit.SECONDS) |
| latch = CountDownLatch(1) |
| } |
| |
| @Test |
| fun useTheSameModelInDrawAndPosition() { |
| val offset = mutableStateOf(5.ipx) |
| var drawLatch = CountDownLatch(1) |
| var positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}, modifier = Modifier.drawBehind { |
| // read from the model |
| offset.value |
| drawLatch.countDown() |
| }) { _, _, _ -> |
| layout(10.ipx, 10.ipx) { |
| // read from the model |
| offset.value |
| positionLatch.countDown() |
| } |
| } |
| } |
| } |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| |
| drawLatch = CountDownLatch(1) |
| positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| offset.value = 7.ipx |
| } |
| |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| |
| drawLatch = CountDownLatch(1) |
| positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| offset.value = 10.ipx |
| } |
| |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun useDifferentModelsInDrawAndPosition() { |
| val drawModel = mutableStateOf(5.ipx) |
| val positionModel = mutableStateOf(5.ipx) |
| var drawLatch = CountDownLatch(1) |
| var positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}, modifier = Modifier.drawBehind { |
| // read from the model |
| drawModel.value |
| drawLatch.countDown() |
| }) { _, _, _ -> |
| layout(10.ipx, 10.ipx) { |
| // read from the model |
| positionModel.value |
| positionLatch.countDown() |
| } |
| } |
| } |
| } |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| |
| drawLatch = CountDownLatch(1) |
| positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| drawModel.value = 7.ipx |
| } |
| |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| assertFalse(positionLatch.await(200, TimeUnit.MILLISECONDS)) |
| |
| drawLatch = CountDownLatch(1) |
| positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| positionModel.value = 10.ipx |
| } |
| |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| assertFalse(drawLatch.await(200, TimeUnit.MILLISECONDS)) |
| } |
| |
| @Test |
| fun useTheSameModelInMeasureAndPosition() { |
| val offset = mutableStateOf(5.ipx) |
| var measureLatch = CountDownLatch(1) |
| var drawLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}, modifier = Modifier.drawBehind { |
| // read from the model |
| offset.value |
| drawLatch.countDown() |
| }) { _, _, _ -> |
| measureLatch.countDown() |
| // read from the model |
| layout(offset.value, 10.ipx) {} |
| } |
| } |
| } |
| assertTrue(measureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| |
| measureLatch = CountDownLatch(1) |
| drawLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| offset.value = 10.ipx |
| } |
| |
| assertTrue(measureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| |
| measureLatch = CountDownLatch(1) |
| drawLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| offset.value = 15.ipx |
| } |
| |
| assertTrue(measureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(drawLatch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun useDifferentModelsInMeasureAndPosition() { |
| val measureModel = mutableStateOf(5.ipx) |
| val positionModel = mutableStateOf(5.ipx) |
| var measureLatch = CountDownLatch(1) |
| var positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| measureLatch.countDown() |
| // read from the model |
| layout(measureModel.value, 10.ipx) { |
| // read from the model |
| positionModel.value |
| positionLatch.countDown() |
| } |
| } |
| } |
| } |
| assertTrue(measureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| |
| measureLatch = CountDownLatch(1) |
| positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| measureModel.value = 10.ipx |
| } |
| |
| assertTrue(measureLatch.await(1, TimeUnit.SECONDS)) |
| // remeasuring automatically triggers relayout |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| |
| measureLatch = CountDownLatch(1) |
| positionLatch = CountDownLatch(1) |
| rule.runOnUiThread { |
| positionModel.value = 15.ipx |
| } |
| |
| assertFalse(measureLatch.await(200, TimeUnit.MILLISECONDS)) |
| assertTrue(positionLatch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun drawReactsOnCorrectModelsChanges() { |
| val enabled = mutableStateOf(true) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| AtLeastSize(10.ipx, modifier = Modifier.drawBehind { |
| if (enabled.value) { |
| // read the model |
| model.value |
| } |
| latch.countDown() |
| }) { |
| } |
| } |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun measureReactsOnCorrectModelsChanges() { |
| val enabled = mutableStateOf(true) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| if (enabled.value) { |
| // read the model |
| model.value |
| } |
| latch.countDown() |
| layout(10.ipx, 10.ipx) {} |
| } |
| } |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| assertCountDownOnlyWhileEnabled(enabled, model) |
| } |
| |
| @Test |
| fun layoutReactsOnCorrectModelsChanges() { |
| val enabled = mutableStateOf(true) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| layout(10.ipx, 10.ipx) { |
| if (enabled.value) { |
| // read the model |
| model.value |
| } |
| latch.countDown() |
| } |
| } |
| } |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| assertCountDownOnlyWhileEnabled(enabled, model) |
| } |
| |
| @Test |
| fun drawStopsReactingOnModelsAfterDetaching() { |
| val enabled = mutableStateOf(true) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| val modifier = if (enabled.value) { |
| Modifier.drawBehind { |
| // read the model |
| model.value |
| latch.countDown() |
| } |
| } else Modifier |
| AtLeastSize(10.ipx, modifier = modifier) {} |
| } |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| assertCountDownOnlyWhileEnabled(enabled, model, false) |
| } |
| |
| @Test |
| fun measureStopsReactingOnModelsAfterDetaching() { |
| val enabled = mutableStateOf(true) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| if (enabled.value) { |
| Layout({}) { _, _, _ -> |
| // read the model |
| model.value |
| latch.countDown() |
| layout(10.ipx, 10.ipx) {} |
| } |
| } |
| } |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| assertCountDownOnlyWhileEnabled(enabled, model, false) |
| } |
| |
| @Test |
| fun layoutStopsReactingOnModelsAfterDetaching() { |
| val enabled = mutableStateOf(true) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| if (enabled.value) { |
| Layout({}) { _, _, _ -> |
| layout(10.ipx, 10.ipx) { |
| // read the model |
| model.value |
| latch.countDown() |
| } |
| } |
| } |
| } |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| assertCountDownOnlyWhileEnabled(enabled, model, false) |
| } |
| |
| @Test |
| fun remeasureRequestForTheNodeBeingMeasured() { |
| var latch = CountDownLatch(1) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| if (model.value == 1) { |
| // this will trigger remeasure request for this node we currently measure |
| model.value = 2 |
| FrameManager.nextFrame() |
| } |
| latch.countDown() |
| layout(100.ipx, 100.ipx) {} |
| } |
| } |
| } |
| |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| latch = CountDownLatch(1) |
| |
| rule.runOnUiThread { |
| model.value = 1 |
| } |
| |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun remeasureRequestForTheNodeBeingLaidOut() { |
| var remeasureLatch = CountDownLatch(1) |
| var relayoutLatch = CountDownLatch(1) |
| val remeasureModel = mutableStateOf(0) |
| val relayoutModel = mutableStateOf(0) |
| var valueReadDuringMeasure = -1 |
| var modelAlreadyChanged = false |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| valueReadDuringMeasure = remeasureModel.value |
| remeasureLatch.countDown() |
| layout(100.ipx, 100.ipx) { |
| if (relayoutModel.value != 0) { |
| if (!modelAlreadyChanged) { |
| // this will trigger remeasure request for this node we layout |
| remeasureModel.value = 1 |
| FrameManager.nextFrame() |
| // the remeasure will also include another relayout and we don't |
| // want to loop and request remeasure again |
| modelAlreadyChanged = true |
| } |
| } |
| relayoutLatch.countDown() |
| } |
| } |
| } |
| } |
| |
| assertTrue(remeasureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(relayoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| remeasureLatch = CountDownLatch(1) |
| relayoutLatch = CountDownLatch(1) |
| |
| rule.runOnUiThread { |
| relayoutModel.value = 1 |
| } |
| |
| assertTrue(remeasureLatch.await(1, TimeUnit.HOURS)) |
| assertTrue(relayoutLatch.await(1, TimeUnit.HOURS)) |
| assertEquals(1, valueReadDuringMeasure) |
| } |
| |
| @Test |
| fun relayoutRequestForTheNodeBeingMeasured() { |
| var remeasureLatch = CountDownLatch(1) |
| var relayoutLatch = CountDownLatch(1) |
| val remeasureModel = mutableStateOf(0) |
| val relayoutModel = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| if (remeasureModel.value != 0) { |
| // this will trigger relayout request for this node we currently measure |
| relayoutModel.value = 1 |
| FrameManager.nextFrame() |
| } |
| remeasureLatch.countDown() |
| layout(100.ipx, 100.ipx) { |
| relayoutModel.value // just register the read |
| relayoutLatch.countDown() |
| } |
| } |
| } |
| } |
| |
| assertTrue(remeasureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(relayoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| remeasureLatch = CountDownLatch(1) |
| relayoutLatch = CountDownLatch(1) |
| |
| rule.runOnUiThread { |
| remeasureModel.value = 1 |
| } |
| |
| assertTrue(remeasureLatch.await(1, TimeUnit.SECONDS)) |
| assertTrue(relayoutLatch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun relayoutRequestForTheNodeBeingLaidOut() { |
| var latch = CountDownLatch(1) |
| val model = mutableStateOf(0) |
| rule.runOnUiThread { |
| activity.setContent { |
| Layout({}) { _, _, _ -> |
| layout(100.ipx, 100.ipx) { |
| if (model.value == 1) { |
| // this will trigger relayout request for this node we currently layout |
| model.value = 2 |
| FrameManager.nextFrame() |
| } |
| latch.countDown() |
| } |
| } |
| } |
| } |
| |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| latch = CountDownLatch(1) |
| |
| rule.runOnUiThread { |
| model.value = 1 |
| } |
| |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| fun assertCountDownOnlyWhileEnabled( |
| enableModel: MutableState<Boolean>, |
| valueModel: MutableState<Int>, |
| triggeredByEnableSwitch: Boolean = true |
| ) { |
| latch = CountDownLatch(1) |
| rule.runOnUiThread { |
| valueModel.value++ |
| } |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| |
| latch = CountDownLatch(1) |
| rule.runOnUiThread { |
| enableModel.value = false |
| } |
| if (triggeredByEnableSwitch) { |
| assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } else { |
| assertFalse(latch.await(200, TimeUnit.MILLISECONDS)) |
| } |
| |
| latch = CountDownLatch(1) |
| rule.runOnUiThread { |
| valueModel.value++ |
| } |
| assertFalse(latch.await(200, TimeUnit.MILLISECONDS)) |
| } |
| } |