Merge "Make sure the app is still app after launching. Bug:8755950" into jb-mr2-dev

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 {

    }

    /**

     * 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 {

        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");

    /**

     * 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.

     */

    /**

     * 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);

        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);

            // 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;

    }

}