| /* |
| * Copyright 2021 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.glance.appwidget |
| |
| import android.content.res.Configuration |
| import android.os.Build |
| import org.junit.rules.TestRule |
| import org.junit.runner.Description |
| import org.junit.runners.model.Statement |
| import java.lang.reflect.AnnotatedElement |
| import java.lang.reflect.Method |
| |
| /** |
| * Annotation for specifying a per-test or per-method override of the device night mode |
| */ |
| @Retention(AnnotationRetention.RUNTIME) |
| @Target(AnnotationTarget.CLASS, AnnotationTarget.FUNCTION) |
| internal annotation class WithNightMode(val value: Boolean = true) |
| |
| /** [TestRule] for using [WithNightMode] on a test class or method. */ |
| internal object WithNightModeRule : TestRule { |
| |
| override fun apply(base: Statement, description: Description) = |
| object : Statement() { |
| override fun evaluate() { |
| if (Build.VERSION.SDK_INT < 29) { |
| // Night mode is only usable on API 29+. |
| base.evaluate() |
| return |
| } |
| |
| val isTestNightMode = |
| description.testMethod.isNightMode ?: description.testClass.isNightMode ?: false |
| val isDeviceNightMode = |
| context.resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK == |
| Configuration.UI_MODE_NIGHT_YES |
| var previousNightMode: String? = null |
| if (isTestNightMode != isDeviceNightMode) { |
| // The night mode status is of the form "Night mode: <mode>" |
| previousNightMode = runShellCommand("cmd uimode night").substring(12) |
| val newNightMode = if (isTestNightMode) "yes" else "no" |
| runShellCommand("cmd uimode night $newNightMode") |
| } |
| try { |
| base.evaluate() |
| } finally { |
| if (previousNightMode != null) { |
| runShellCommand("cmd uimode night $previousNightMode") |
| } |
| } |
| } |
| } |
| |
| private val AnnotatedElement.isNightMode: Boolean? |
| get() = getAnnotation(WithNightMode::class.java)?.value |
| } |
| |
| private val Description.testMethod: Method |
| get() = testClass.getMethod(methodName) |
