| /* |
| * 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.res |
| |
| import android.util.LruCache |
| import androidx.compose.Providers |
| import androidx.test.filters.SmallTest |
| import androidx.test.platform.app.InstrumentationRegistry |
| import androidx.ui.core.ContextAmbient |
| import androidx.ui.core.test.R |
| import androidx.compose.ui.graphics.ImageAsset |
| import androidx.compose.ui.graphics.asAndroidBitmap |
| import androidx.compose.ui.graphics.imageFromResource |
| import androidx.ui.test.createComposeRule |
| import androidx.ui.test.runOnIdle |
| import com.google.common.truth.Truth.assertThat |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| import java.util.concurrent.Executor |
| |
| @RunWith(JUnit4::class) |
| @SmallTest |
| class ResourcesTest { |
| |
| @get:Rule |
| val composeTestRule = createComposeRule() |
| |
| class PendingExecutor : Executor { |
| var runnable: Runnable? = null |
| |
| override fun execute(r: Runnable) { |
| runnable = r |
| } |
| |
| fun runNow() { |
| runnable?.run() |
| runnable = null |
| } |
| } |
| |
| @Test |
| fun asyncLoadingTest() { |
| val context = InstrumentationRegistry.getInstrumentation().targetContext |
| val resource = context.resources |
| val pendingExecutor = PendingExecutor() |
| val cacheLock = Any() |
| val requestCache = mutableMapOf<String, MutableList<DeferredResource<*>>>() |
| val resourceCache = LruCache<String, Any>(1) |
| |
| val loadedImage = imageFromResource(resource, R.drawable.loaded_image) |
| val pendingImage = imageFromResource(resource, R.drawable.pending_image) |
| val failedImage = imageFromResource(resource, R.drawable.failed_image) |
| |
| var uiThreadWork: (() -> Unit)? = null |
| var res: DeferredResource<ImageAsset>? = null |
| |
| composeTestRule.setContent { |
| Providers(ContextAmbient provides context) { |
| res = loadResourceInternal( |
| key = "random key string", |
| pendingResource = pendingImage, |
| failedResource = failedImage, |
| executor = pendingExecutor, |
| uiThreadHandler = { uiThreadWork = it }, |
| cacheLock = cacheLock, |
| requestCache = requestCache, |
| resourceCache = resourceCache, |
| loader = { imageFromResource(resource, R.drawable.loaded_image) } |
| ) |
| } |
| } |
| |
| runOnIdle { |
| assertThat(pendingExecutor.runnable).isNotNull() |
| assertThat(res!!.resource).isInstanceOf(PendingResource::class.java) |
| assertThat(res!!.resource.resource).isNotNull() |
| assertThat(res!!.resource.resource!!.asAndroidBitmap().sameAs(pendingImage |
| .asAndroidBitmap())) |
| } |
| |
| runOnIdle { |
| pendingExecutor.runNow() // load the resource |
| assertThat(uiThreadWork).isNotNull() |
| // update state object so that recompose is expected to be triggered. |
| uiThreadWork?.invoke() |
| } |
| |
| runOnIdle { |
| assertThat(pendingExecutor.runnable).isNull() |
| assertThat(res!!.resource).isInstanceOf(LoadedResource::class.java) |
| assertThat(res!!.resource.resource).isNotNull() |
| assertThat(res!!.resource.resource!! |
| .asAndroidBitmap() |
| .sameAs(loadedImage.asAndroidBitmap())) |
| .isTrue() |
| } |
| } |
| |
| @Test |
| fun asyncLoadingFailTest() { |
| val context = InstrumentationRegistry.getInstrumentation().targetContext |
| val resource = context.resources |
| val pendingExecutor = PendingExecutor() |
| val cacheLock = Any() |
| val requestCache = mutableMapOf<String, MutableList<DeferredResource<*>>>() |
| val resourceCache = LruCache<String, Any>(1) |
| |
| val pendingImage = imageFromResource(resource, R.drawable.pending_image) |
| val failedImage = imageFromResource(resource, R.drawable.failed_image) |
| |
| var uiThreadWork: (() -> Unit)? = null |
| var res: DeferredResource<ImageAsset>? = null |
| |
| composeTestRule.setContent { |
| Providers(ContextAmbient provides context) { |
| res = loadResourceInternal( |
| key = "random key string", |
| pendingResource = pendingImage, |
| failedResource = failedImage, |
| executor = pendingExecutor, |
| uiThreadHandler = { uiThreadWork = it }, |
| cacheLock = cacheLock, |
| requestCache = requestCache, |
| resourceCache = resourceCache, |
| loader = { throw RuntimeException("Resource Load Failed") } |
| ) |
| } |
| } |
| |
| runOnIdle { |
| assertThat(pendingExecutor.runnable).isNotNull() |
| assertThat(res!!.resource).isInstanceOf(PendingResource::class.java) |
| assertThat(res!!.resource.resource).isNotNull() |
| assertThat(res!!.resource.resource!! |
| .asAndroidBitmap() |
| .sameAs(pendingImage.asAndroidBitmap())) |
| .isTrue() |
| } |
| |
| runOnIdle { |
| pendingExecutor.runNow() // load the resource |
| assertThat(uiThreadWork).isNotNull() |
| // update state object so that recompose is expected to be triggered. |
| uiThreadWork?.invoke() |
| } |
| |
| runOnIdle { |
| assertThat(pendingExecutor.runnable).isNull() |
| assertThat(res!!.resource).isInstanceOf(FailedResource::class.java) |
| assertThat(res!!.resource.resource).isNotNull() |
| assertThat(res!!.resource.resource!! |
| .asAndroidBitmap() |
| .sameAs(failedImage.asAndroidBitmap())) |
| .isTrue() |
| } |
| } |
| } |