Make sure the app is still app after launching.

Bug:8755950

Change-Id: Ie30d84cb94787d8b2e7bdc65e329a311581f4a3f

tests/Compatibility/src/com/android/compatibilitytest/AppCompatibility.java

@@ -18,19 +18,24 @@
 
 import android.app.ActivityManager;
 import android.app.ActivityManager.ProcessErrorStateInfo;
+import android.app.ActivityManager.RunningAppProcessInfo;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Bundle;
 import android.test.InstrumentationTestCase;
 import android.util.Log;
 
 import junit.framework.Assert;
 
 import java.util.Collection;
+import java.util.List;
 
 /**
- * Application Compatibility Test that launches an application and detects crashes.
+ * Application Compatibility Test that launches an application and detects
+ * crashes.
  */
 public class AppCompatibility extends InstrumentationTestCase {
 
@@ -49,10 +54,10 @@ public class AppCompatibility extends InstrumentationTestCase {
     private Bundle mArgs;
 
     @Override
-    public void setUp() throws Exception{
+    public void setUp() throws Exception {
         super.setUp();
         mRunner = (AppCompatibilityRunner) getInstrumentation();
-        assertNotNull("Could not fetch InstrumentationTestRunner.",mRunner);
+        assertNotNull("Could not fetch InstrumentationTestRunner.", mRunner);
 
         mContext = mRunner.getTargetContext();
         Assert.assertNotNull("Could not get the Context", mContext);
@@ -83,17 +88,21 @@ protected void tearDown() throws Exception {
     }
 
     /**
-     * Actual test case that launches the package and throws an exception on the first error.
+     * Actual test case that launches the package and throws an exception on the
+     * first error.
+     *
      * @throws Exception
      */
     public void testAppStability() throws Exception {
         String packageName = mArgs.getString(PACKAGE_TO_LAUNCH);
         if (packageName != null) {
             Log.d(TAG, "Launching app " + packageName);
             Collection<ProcessErrorStateInfo> err = launchActivity(packageName);
-            // Make sure there are no errors when launching the application, otherwise raise an
+            // Make sure there are no errors when launching the application,
+            // otherwise raise an
             // exception with the first error encountered.
             assertNull(getFirstError(err), err);
+            assertTrue("App crashed after launch.", processStillUp(packageName));
         } else {
             Log.d(TAG, "Missing argument, use " + PACKAGE_TO_LAUNCH +
                     " to specify the package to launch");
@@ -102,6 +111,7 @@ public void testAppStability() throws Exception {
 
     /**
      * Gets the first error in collection and return the long message for it.
+     *
      * @param in {@link Collection} of {@link ProcessErrorStateInfo} to parse.
      * @return {@link String} the long message of the error.
      */
@@ -118,8 +128,11 @@ private String getFirstError(Collection<ProcessErrorStateInfo> in) {
 
     /**
      * Launches and activity and queries for errors.
-     * @param packageName {@link String} the package name of the application to launch.
-     * @return  {@link Collection} of {@link ProcessErrorStateInfo} detected during the app launch.
+     *
+     * @param packageName {@link String} the package name of the application to
+     *            launch.
+     * @return {@link Collection} of {@link ProcessErrorStateInfo} detected
+     *         during the app launch.
      */
     private Collection<ProcessErrorStateInfo> launchActivity(String packageName) {
         Intent homeIntent = new Intent(Intent.ACTION_MAIN);
@@ -129,14 +142,20 @@ private Collection<ProcessErrorStateInfo> launchActivity(String packageName) {
         Intent intent = mPackageManager.getLaunchIntentForPackage(packageName);
         // Skip if the apk does not have a launch intent.
         if (intent == null) {
+            Log.d(TAG, "Skipping " + packageName + "; missing launch intent");
             return null;
         }
 
-        // We check for any Crash or ANR dialogs that are already up, and we ignore them.  This is
-        // so that we don't report crashes that were caused by prior apps (which those particular
-        // tests should have caught and reported already).  Otherwise, test failures would cascade
-        // from the initial broken app to many/all of the tests following that app's launch.
-        final Collection<ProcessErrorStateInfo> preErr = mActivityManager.getProcessesInErrorState();
+        // We check for any Crash or ANR dialogs that are already up, and we
+        // ignore them. This is
+        // so that we don't report crashes that were caused by prior apps (which
+        // those particular
+        // tests should have caught and reported already). Otherwise, test
+        // failures would cascade
+        // from the initial broken app to many/all of the tests following that
+        // app's launch.
+        final Collection<ProcessErrorStateInfo> preErr =
+                mActivityManager.getProcessesInErrorState();
 
         // Launch Activity
         mContext.startActivity(intent);
@@ -155,15 +174,43 @@ private Collection<ProcessErrorStateInfo> launchActivity(String packageName) {
             // ignore
         }
 
-        // See if there are any errors.  We wait until down here to give ANRs as much time as
+        // See if there are any errors. We wait until down here to give ANRs as
+        // much time as
         // possible to occur.
         final Collection<ProcessErrorStateInfo> postErr =
                 mActivityManager.getProcessesInErrorState();
-        // Take the difference between the error processes we see now, and the ones that were
+        // Take the difference between the error processes we see now, and the
+        // ones that were
         // present when we started
         if (preErr != null && postErr != null) {
             postErr.removeAll(preErr);
         }
         return postErr;
     }
+
+    /**
+     * Determine if a given package is still running.
+     *
+     * @param packageName {@link String} package to look for
+     * @return True if package is running, false otherwise.
+     */
+    private boolean processStillUp(String packageName) {
+        try {
+            PackageInfo packageInfo = mPackageManager.getPackageInfo(packageName, 0);
+            String processName = packageInfo.applicationInfo.processName;
+            List<RunningAppProcessInfo> runningApps = mActivityManager.getRunningAppProcesses();
+            for (RunningAppProcessInfo app : runningApps) {
+                if (app.processName.equalsIgnoreCase(processName)) {
+                    Log.d(TAG, "Found process " + app.processName);
+                    return true;
+                }
+            }
+            Log.d(TAG, "Failed to find process " + processName + " with package name "
+                    + packageName);
+        } catch (NameNotFoundException e) {
+            Log.w(TAG, "Failed to find package " + packageName);
+            return false;
+        }
+        return false;
+    }
 }