Creates EmulatorConfigRule to configure the emulator for full screen …

…screenshots.

.github/scripts/emu_setup.sh

@@ -1,16 +1,7 @@
 #!/bin/bash
 
+adb wait-for-devices
+
 echo "Cleaning up old emulator data"
 adb uninstall com.dropbox.dropshots.test || true
 adb shell rm -rf /storage/emulated/0/Download/screenshots || true
-
-adb wait-for-devices
-adb shell settings put global sysui_demo_allowed 1
-adb shell am broadcast -a com.android.systemui.demo -e command enter
-adb shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm 1234
-adb shell am broadcast -a com.android.systemui.demo -e command battery -e plugged false
-adb shell am broadcast -a com.android.systemui.demo -e command battery -e level 100
-adb shell am broadcast -a com.android.systemui.demo -e command network -e wifi show -e level 4
-adb shell am broadcast -a com.android.systemui.demo -e command network -e mobile show -e datatype none -e level 4
-adb shell am broadcast -a com.android.systemui.demo -e command notifications -e visible false
-adb shell cmd overlay enable com.android.internal.systemui.navbar.gestural

dropshots/build.gradle.kts

@@ -55,6 +55,7 @@ dependencies {
   androidTestImplementation(libs.androidx.test.ext.junit)
   androidTestImplementation(libs.androidx.test.rules)
   androidTestImplementation(libs.androidx.test.runner)
+  androidTestImplementation(libs.androidx.test.uiautomator)
 }
 
 mavenPublishing {

dropshots/src/androidTest/kotlin/com/dropbox/dropshots/DropshotsTest.kt

@@ -18,6 +18,9 @@ class DropshotsTest {
   private val fakeValidator = FakeResultValidator()
   private val isRecordingScreenshots = isRecordingScreenshots()
 
+  @get:Rule
+  val emulatorConfigRule = EmulatorConfigRule()
+
   @get:Rule
   val activityScenarioRule = ActivityScenarioRule(TestActivity::class.java)
 

dropshots/src/androidTest/kotlin/com/dropbox/dropshots/EmulatorConfigRule.kt

@@ -0,0 +1,42 @@
+package com.dropbox.dropshots
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.uiautomator.UiDevice
+import org.junit.rules.TestRule
+import org.junit.runner.Description
+import org.junit.runners.model.Statement
+
+class EmulatorConfigRule : TestRule {
+  override fun apply(base: Statement, description: Description): Statement =
+    EmulatorConfigStatement(base)
+
+  private class EmulatorConfigStatement(
+    private val base: Statement,
+  ) : Statement() {
+    override fun evaluate() {
+      enableDemoMode()
+      base.evaluate()
+      disableDemoMode()
+    }
+
+    private fun enableDemoMode() {
+      UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())
+        .apply {
+          executeShellCommand("cmd overlay enable com.android.internal.systemui.navbar.gestural")
+          executeShellCommand("settings put global sysui_demo_allowed 1")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command enter")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command clock -e hhmm 1234")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command battery -e plugged false")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command battery -e level 100")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command network -e wifi show -e level 4")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command network -e mobile show -e datatype none -e level 4")
+          executeShellCommand("am broadcast -a com.android.systemui.demo -e command notifications -e visible false")
+        }
+    }
+
+    private fun disableDemoMode() {
+      UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())
+        .executeShellCommand("am broadcast -a com.android.systemui.demo -e command exit")
+    }
+  }
+}

gradle/libs.versions.toml

@@ -15,6 +15,7 @@ androidx-test-core = { module = "androidx.test:core-ktx", version = "1.5.0" }
 androidx-test-ext-junit = { module = "androidx.test.ext:junit-ktx", version = "1.1.5" }
 androidx-test-rules = { module = "androidx.test:rules", version = "1.5.0" }
 androidx-test-runner = { module = "androidx.test:runner", version = "1.5.2" }
+androidx-test-uiautomator = { group = "androidx.test.uiautomator", name = "uiautomator", version = "2.3.0" }
 differ = "com.dropbox.differ:differ:0.0.1-alpha1"
 junit = "junit:junit:4.12"
 truth = "com.google.truth:truth:1.1.3"