TestNG factory class with example

TestNG factory class is used to create instance of testNg class at runtime (dynamically). When we apply Factory annotation on method, it always return object array of Object class ( “Object[]”). This is useful annotation when you run test multiple time.

TestNG pick @Factory method from class and consider each object mentioned in factory test as a TestNg class and invoke in separate.

Example:  FactoryClassImp.java

package com.tests;

import org.testng.annotations.Factory;

public class FactoryClassImp {

 @Factory

 public Object[] createTest() {

  Object[] res = new Object[3];

  res[0] = new FactoryTestClass(2, 2);

  res[1] = new FactoryTestClass(2, 3);

  res[2] = new FactoryTestClass(2, 4);

  return res;

 }

}

TestNG - Exception Test

In this post I will show you how to handle exception in Testng. TestNg provides expectedExceptions parameter  which is used along with @Test annotation, exp @Test(expectedExceptions)

package com.test;

import org.testng.annotations.Test;

public class TestNgException {

        @Test(expectedExceptions = ArithmeticException.class)

        public void testException() {

               int a = 10;

               int b = 0;

               a = a / b;

        }

        @Test

        public void testException1() {

               int a = 10;

               int b = 0;

               a = a / b;

        }

}

In test method testException I used “@Test(expectedExceptions = ArithmeticException.class)” so airthmetic exception handle but in  test testException1 exception generated.

TestNG - Ignore Test

In this post I will show you how to ignore testng test case to execute,  TestNg provide attribute enabled which make the test to be execute or not, if test mark @Test(enabled = false) then test will not execute. By default enabled value is true.

Here is example for ignore test case:

package com.test;

import org.testng.Assert;

import org.testng.annotations.Test;

public class IgnoreTestClass {

        @Test

        public void testMethod1() {

               Assert.assertTrue(true);

        }

        @Test(enabled = false)

        public void testMethod2() {

               Assert.assertTrue(true);

        }

        @Test(enabled = true)

        public void testMethod3() {

               Assert.assertTrue(true);

        }

}

Run above test you will see that testMethod2 will ignored and not executed:

PASSED: testMethod1

PASSED: testMethod3

===============================================

    Default test

    Tests run: 2, Failures: 0, Skips: 0

===============================================

===============================================

Default suite

Total tests run: 2, Failures: 0, Skips: 0

====================================   

How to read write data in properties file using Java

For reading and writing data into properties file I am using Properties class in this post.
Create a file name with extension .properties like I have created “File.properties” below file:

Reading Data: Below code read data from above file using key and file name as an arguments.

package com.test;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.Properties;

public class FileReader {

   

    public String readData(String key, String fileName) {

           String value = "";

           try {

                         Properties properties = new Properties();

                         File file  = new File("File.properties");

                         if (file.exists()) {

                                             properties.load(new FileInputStream(file));

                                             value = properties.getProperty(key);

                        }

            } catch (Exception e) {

                        System.out.println(e);

            }

           return value;

    }

   

    public static void main(String []str){

                        

             FileReader fileReader = new FileReader();                           

                        

                         String name = fileReader.readData("Name", "fileName");

                         System.out.println("Name :"+name);

                         String url = fileReader.readData("URL", "fileName");

                         System.out.println("URL :"+url);

        }

}

If you run above file you will get Name and Url values and print on console

Road to publish Webdriver TestNg report in Jenkins

In this post I will show you how to publish TestNg report on Jenkins server.

Installation TestNG plug-in.
1. After launching Jenkins server go to "Manage Jenkins>>Manage Plugins"
2. Enter TestNg in filter field, you will see “TestNg Results Plugin” like below screen.

3. Click on check box and then click on installation button.

How to read write data in properties file using php

For reading and writing data into properties file I am using parse_ini_file() function in this post.
Create a file name with extension .properties like I have created below:

Reading Data: below code read data from above file using key:

function getValue($key)

{

    $ini_array = parse_ini_file("File.properties");

    $value =  $ini_array[$key];

    return $value;

}

getValue(“Name”);

getValue(“URL”);

Road to capture screen shot of failed Webdriver test script part2

In my previous post ( "Road to capture screen shot of failed webdriver test script part1") I have posted how to capture screen shot using exception handling, but in this post I will show you how to capture screen shot by overriding testng listeners.

Here is code (MyListner.java) where I override onTestFailure,  onTestSuccess and onTestSkipped methods of class TestListenerAdapter.  Created function CaptureScreenShot and called it into onTestFailure function.

package com.webdriver.test;

import java.io.File;

import java.io.IOException;

import org.apache.commons.io.FileUtils;

import org.openqa.selenium.OutputType;

import org.openqa.selenium.TakesScreenshot;

import org.openqa.selenium.WebDriver;

import org.testng.ITestResult;

import org.testng.TestListenerAdapter;

public class MyListner extends TestListenerAdapter{   

           

     @Override

     public void onTestFailure(ITestResult result){ 

            CaptureScreenShot(result);

            System.out.println(result.getName()+" Test Failed \n");

     }

           

     @Override

     public void onTestSuccess(ITestResult result){

           System.out.println(result.getName()+" Test Passed \n");

     }

           

     @Override

     public void onTestSkipped(ITestResult result){

           System.out.println(result.getName()+" Test Skipped \n");

     }

            

     public void CaptureScreenShot(ITestResult result){

           Object obj  = result.getInstance();

           WebDriver driver = ((FailedTestScreenCapture) obj).getDriver();

                        

           File scrFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);

                                         

           try {

                  FileUtils.copyFile(scrFile, new File(“screenshot/” result.getName()+".png"));

           }

           catch (IOException e) {

                e.printStackTrace();

           }

      } 

}

I called above created listeners java file in below “FailedTestScreenCapture.java” TestNg file.

Road to create Virtual device (Emulator ) for beginner

In this post I will show you how to install android SDK , setup Android SDK path in system environments variable, How to update android API and how to create Virtual Devices.

Installation:

1. Download Androd sdk exe or Zip file from link: download
2. Install exe file in your machine or extract the zip file.

Setup Path:
1. Right click on the "My Computer" icon.
2. Click Properties
3. Click Advanced tab
4. Click Environment Variables button, You should see below screen:

Road to setup Selendroid and create first test script of android application

About Selendroid:  Selendroid is an open source automation framework which drives of UI of android native, hybrid and mobile web application. It supports both emulator and real device. It uses Json Wire Protocol to run webdriver test scripts on device. It can be integrated with selenium grid for parallel execution on multiple nodes. No need any modification in application and not need source code to automate application.

Prerequisites:

• JDK should be installed and java home path setup in your machine.
• Android SDK should be installed on your machine and android path should be setup in your machine
• Download Selendroid from link: Download
• Selenium jar file from: Download
• Eclipse.
• Create new Emulator or attached real devices with you machine.

Difference between Selenium RC and Webdriver

S.N.	Selenium RC	Webdriver
1	It doesn’t supports Record and playback	It doesn’t supports Record and playback
2	Core engine is Javascript based and interacts browser with remotely.	Interacts natively with browser application
3	It is easy and small API	As compared to RC, it is bit complex and large API.
4	Its API’s are less Object oriented	Its API’s are entirely Object oriented
5	Need to start server before executing the test script	No need to start server.
6	It does not support headless htmlunit browser.	It  support headless htmlunit browser. Which is fater in execution
7	It doesn’t supports of moving mouse cursors.	It supports of moving mouse cursors.
8	It does not supports listeners	It supports the implementation of listeners
9	It does not support to test iphone/Android applications	It support to test iphone/Android applications
10	Selenium RC is slower than Webdriver	It is faster than selenium RC
11	Selenium RC has automatically generate Report in Html build report	Webdriver has no command which automatically generate report