Adds new ResizeDisplayTest

ui/espresso/EspressoDeviceSample/app/build.gradle

@@ -6,7 +6,7 @@ android {
     compileSdk 33
     defaultConfig {
         applicationId "com.example.android.testing.espresso.EspressoDeviceSample"
-        minSdkVersion 14
+        minSdkVersion 19
         targetSdkVersion 33
         versionCode 1
         versionName "1.0"
@@ -16,12 +16,16 @@ android {
     productFlavors {
     }
     testOptions {
+
+        emulatorControl {
+            enable = true
+        }
         unitTests {
             includeAndroidResources = true
         }
         managedDevices {
             devices {
-                // run with ../gradlew  nexusOneApi30DebugAndroidTest
+                // run with ./gradlew  nexusOneApi30DebugAndroidTest
                 nexusOneApi30(com.android.build.api.dsl.ManagedVirtualDevice) {
                     // A lower resolution device is used here for better emulator performance
                     device = "Nexus One"

ui/espresso/EspressoDeviceSample/app/src/androidTest/java/com/example/android/testing/espresso/EspressoDeviceSample/ResizeDisplayTest.kt

@@ -0,0 +1,54 @@
+package com.example.android.testing.espresso.EspressoDeviceSample
+
+import androidx.test.espresso.device.DeviceInteraction.Companion.setDisplaySize
+import androidx.test.espresso.device.EspressoDevice.Companion.onDevice
+import androidx.test.espresso.device.filter.RequiresDisplay
+import androidx.test.espresso.device.rules.DisplaySizeRule
+import androidx.test.espresso.device.sizeclass.HeightSizeClass
+import androidx.test.espresso.device.sizeclass.WidthSizeClass
+import androidx.test.espresso.device.sizeclass.WidthSizeClass.Companion.WidthSizeClassEnum
+import androidx.test.espresso.device.sizeclass.HeightSizeClass.Companion.HeightSizeClassEnum
+import androidx.test.ext.junit.rules.activityScenarioRule
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import androidx.test.espresso.device.sizeclass.WidthSizeClass.Companion.WidthSizeClassEnum.EXPANDED as EXPANDED1
+
+/*
+ * Illustrates usage of [onDevice] API to change the display size.
+ */
+@RunWith(AndroidJUnit4::class)
+class ResizeDisplayTest {
+
+    @get:Rule(order = 1) var activityScenarioRule = activityScenarioRule<MainActivity>()
+
+    // Test rule for restoring device to its starting display size when a test case finishes
+    @get:Rule(order = 2) var displaySizeRule: DisplaySizeRule = DisplaySizeRule()
+
+    @Test
+    fun resizeWindow_compact() {
+        onDevice().setDisplaySize(
+            widthSizeClass = WidthSizeClass.COMPACT,
+            heightSizeClass = HeightSizeClass.COMPACT
+        )
+        // Verify visual attributes or state restoration
+    }
+
+    /**
+     * Setting the display size to EXPANDED would fail in small devices, so the [RequiresDisplay]
+     * annotation prevents this test from being run on devices outside the EXPANDED buckets.
+     */
+    @RequiresDisplay(
+        widthSizeClass = WidthSizeClassEnum.EXPANDED,
+        heightSizeClass = HeightSizeClassEnum.EXPANDED
+    )
+    @Test
+    fun resizeWindow_expanded() {
+        onDevice().setDisplaySize(
+            widthSizeClass = WidthSizeClass.EXPANDED,
+            heightSizeClass = HeightSizeClass.EXPANDED
+        )
+        // Verify visual attributes or state restoration
+    }
+}

ui/espresso/EspressoDeviceSample/app/src/main/AndroidManifest.xml

@@ -16,6 +16,7 @@
 -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
         android:icon="@drawable/ic_launcher"

ui/espresso/EspressoDeviceSample/build.gradle

@@ -29,5 +29,5 @@ ext {
     robolectricVersion = "4.10.3"
     extTruthVersion = "1.6.0-alpha01"
     extJUnitVersion = "1.2.0-alpha01"
-    espressoDeviceVersion = "1.0.0-alpha01"
+    espressoDeviceVersion = "1.0.0-alpha07"
 }

ui/espresso/EspressoDeviceSample/gradle.properties

@@ -20,3 +20,4 @@ android.defaults.buildfeatures.buildconfig=true
 android.nonFinalResIds=false
 android.nonTransitiveRClass=false
 android.useAndroidX=true
+android.experimental.androidTest.enableEmulatorControl=true