Android example source code file (PowerMeasurement.java)

This example Android source code file (PowerMeasurement.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, app, content, delay, exception, fails, instrumentation, logtag, os, page, powermeasurement, powertestactivity, process, runtime, string, test, testing_url, throwable, time_out, util

The PowerMeasurement.java Android example source code

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.browserpowertest;

import android.content.Intent;
import android.app.Instrumentation;
import android.os.Handler;
import android.os.Message;
import android.test.ActivityInstrumentationTestCase2;
import android.util.Log;
import junit.framework.*;

public class PowerMeasurement extends ActivityInstrumentationTestCase2<PowerTestActivity> {

    private static final String LOGTAG = "PowerMeasurement";
    private static final String PKG_NAME = "com.android.browserpowertest";
    private static final String TESTING_URL =
        "http://75.17.48.204:10088/nyt/index.html";
    private static final int TIME_OUT = 2 * 60 * 1000;
    private static final int DELAY = 0;

    public PowerMeasurement() {
        super(PKG_NAME, PowerTestActivity.class);
    }

    public void testPageLoadStaticNYTimes() throws Throwable {
        Instrumentation mInst = getInstrumentation();
        PowerTestActivity act = getActivity();

        Intent intent = new Intent(mInst.getContext(), PowerTestActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        long start = System.currentTimeMillis();
        PowerTestActivity activity = (PowerTestActivity)mInst.startActivitySync(
                intent);
        activity.reset();
        //send a message with the new URL
        Handler handler = activity.getHandler();
        Message msg = handler.obtainMessage(
                PowerTestActivity.MSG_NAVIGATE, TIME_OUT, DELAY);
        msg.getData().putString(PowerTestActivity.MSG_NAV_URL, TESTING_URL);
        msg.getData().putBoolean(PowerTestActivity.MSG_NAV_LOGTIME, true);

        handler.sendMessage(msg);
        boolean timeoutFlag = activity.waitUntilDone();
        long end = System.currentTimeMillis();
        assertFalse(TESTING_URL + " failed to load", timeoutFlag);
        boolean pageErrorFlag = activity.getPageError();
        assertFalse(TESTING_URL + " is not available, either network is down or the server is down",
                pageErrorFlag);
        Log.v(LOGTAG, "Page is loaded in " + activity.getPageLoadTime() + " ms.");

        // Force to clean up the cache dir so that it get back to the clean
        // state
        Runtime fileRemoval = Runtime.getRuntime();
        String cmdBecomeSu = "su";
        boolean clearCacheSuccess = false;
        try{
            Process runsum = fileRemoval.exec(cmdBecomeSu);
            int exitVal = runsum.waitFor();
            String rmfile = "rm -r /data/data/com.android.browserpowertest/cache";
            Process removal = fileRemoval.exec(rmfile);
            exitVal = removal.waitFor();
            if (exitVal == 0) {
                clearCacheSuccess = true;
            }
        } catch ( Exception e){
            assertTrue("Fails to clear the cahche", false);   
        }
        assertTrue("Fails to clear the cahche", clearCacheSuccess);
        activity.finish();
    }
}