Hacks to get espresso to work on travis

Author: Josh Deffibaugh

test-app/build.gradle

@@ -9,7 +9,7 @@ android {
         targetSdkVersion target_sdk_version
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "com.optimizely.ab.android.test_app.TestRunner"
     }
     testOptions {
         unitTests.returnDefaultValues = true

test-app/src/androidTest/java/com/optimizely/ab/android/test_app/TestRunner.java

@@ -0,0 +1,32 @@
+package com.optimizely.ab.android.test_app;
+
+import android.app.Application;
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.os.PowerManager;
+import android.support.test.runner.AndroidJUnitRunner;
+
+public class TestRunner extends AndroidJUnitRunner {
+    private PowerManager.WakeLock wakeLock;
+
+    @Override
+    public void callApplicationOnCreate(Application app) {
+        // Unlock the screen
+        KeyguardManager keyguard = (KeyguardManager) app.getSystemService(Context.KEYGUARD_SERVICE);
+        keyguard.newKeyguardLock(getClass().getSimpleName()).disableKeyguard();
+
+        // Start a wake lock
+        PowerManager power = (PowerManager) app.getSystemService(Context.POWER_SERVICE);
+        wakeLock = power.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.ON_AFTER_RELEASE, getClass().getSimpleName());
+        wakeLock.acquire();
+
+        super.callApplicationOnCreate(app);
+    }
+
+    @Override
+    public void onDestroy() {
+        wakeLock.release();
+
+        super.onDestroy();
+    }
+}

test-app/src/main/AndroidManifest.xml

@@ -2,6 +2,9 @@
 <manifest package="com.optimizely.ab.android.test_app"
           xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK"/>
+
     <application
         android:name=".MyApplication"
         android:allowBackup="false"