TestNG
Framework
TestNG stands
for Test New Generation which is inspired from JUnit and NUnit. It is also same
as Junit but it has more functionalities than Junit
Advantages
of TestNG:
· Contains more Annotations
· Test cases can be grouped more easily
· Dependency testing is possible
· Parallel testing is possible using
Grid2
Downloading & Configuring TestNG
into eclipse:
TestNG Installation:
“Help” menuà Eclipse Marketplace à enter TestNG in Search Edit box à click on Goàclick on install
**TestNg annotations:
**TestNG is a built-in framework tool,
which we can use in Selenium Webdriver to execute our test scripts without main
() method in classes using annotations
Annotations are used to specify sequence of methods execution
without using main method
1. @Test: it is used to specify method under this annotation is a test case(i.e. validation part)
In one class we can maintain multiple @Test annotation methods
By default those methods will execute in alphabetical order
Based on requirement we can set execution sequence for @Test annotation
methods using ‘priority’
Syntax:
@Test(priority=1)
2. @BeforeMethod: methods
under this annotation will be executed before each @Test annotation method
(i.e. @Test)
Note:
@BeforeMethod
annotation method will execute depends on number @Test annotation
methods in a class
3. @AfterMethod: method under this annotation will be
executed after each @Test annotation method (i.e. @Test)
Note:
@AfterMethod
annotation method will execute depends on number @Test annotation
methods in a class
4. @BeforeClass: method under this annotation will execute
prior to any method in that class
5. @AfterClass: method under this annotation will execute
after all the methods are executed in a class
6. @Parameters: to get data from TestNg xml file
sequence of annotations
@BeforeClass
@BeforeMethod
@Test
@AfterMethod
@AfterClass
Ex: create script to perform execution by taking each
scenario into individual methods
Scenarios:
This program to launch browser
This program to refresh the page after each transaction
This program is to validate user Registration operation
This program is written to validate login functionality
This script to set home page of application
To close browser
ex:
public class TestNgEx02 {
@BeforeClass
public void setUp(){
System.out.println("To
initialize browser and to open URL");
}
@AfterMethod
public void refreshPg(){
System.out.println("To
refresh the page after each validation");
}
@Test (priority=1)
public void userReg(){
System.out.println("Validate
user Registration");
}
@Test (priority=2)
public void userLogin(){
System.out.println("Login
validation");
}
@BeforeMethod
public void homePg(){
System.out.println("To set
Home page before each validation");
}
@AfterClass
public void tearDown(){
System.out.println("to close
application");
}
}
O/p:
To initialize browser and to open
URL
To set Home page before each
validation
Validate user Registration
To refresh the page after each
validation
To set Home page before each
validation
Login validation
To refresh the page after each
validation
to close application
Ex: TestNg program for validation
package testng.framework;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.Assert;
import org.testng.Reporter;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
public class TestNgValidation {
WebDriver
driver;
@BeforeClass
public
void setUp(){
driver=
new FirefoxDriver();
driver.get("http://demo.actitime.com/login.do");
driver.manage().timeouts().implicitlyWait(30,
TimeUnit.SECONDS);
}
@Test
(priority=0)
public
void LoginTest(){
WebElement
objUserName = driver.findElement(By.name("username"));
if
(objUserName.isDisplayed()) {
Reporter.log("Username
element found in Application and Script executing ....",true);
objUserName.sendKeys("user");
driver.findElement(By.name("pwd")).sendKeys("user");
driver.findElement(By.xpath("//a[@id='loginButton']/div")).click();
}
else {
Reporter.log("Username
element not found in Application",true);
}
}
@Test
(priority=1)
public
void LoginValidation(){
String
str1= driver.findElement(By.linkText("Logout")).getText();
Assert.assertEquals(str1,
"Logout1");
}
@AfterClass
public
void tearDown() {
driver.close();
}
}
TestNg Xml file:
Using TestNg xml file we can execute multiple classes from
different packages, and also we can include/exclude some methods from class
Creating TestNg xml file:
Navigation:
Select Java project
Right click on mouse
Select “File”
Enter
file name with “.xml” extension
àclick on “Finish”
àwrite following code in “Source view”
of testing xml file
================================================
=====================================================
Note:
One suite can have multiple tests
One test can have multiple classes
One class can have multiple methods
Ex: Create TestNg Xml file to execute tests from different
classes from different packages
Procedure:
Step 1: Create new package with name as “sampleone”
Step 2: create 2 classes in “sampleone” package with 2 @Test
annotation methods
Class-1:
package sampleone;
import org.testng.annotations.Test;
public class Class01 {
@Test
public void methodOne(){
System.out.println("Method-1
from Class01");
}
@Test
public void methodTwo(){
System.out.println("Method-2
from Class01");
}
}
Class-2:
package sampleone;
import
org.testng.annotations.Test;
public class Class02 {
@Test
public void methodOne(){
System.out.println("Method-1
from Class02");
}
@Test
public void methodTwo(){
System.out.println("Method-2
from Class02");
}
}
Step 3: Create new package with name as “sampletwo”
Step 4: Create class in “sampletwo” package with 2 @Test
annotation methods
Class03:
package sampletwo;
import
org.testng.annotations.Test;
public class Class03 {
@Test
public void methodOne(){
System.out.println("Method-1
from Class03");
}
@Test
public void methodTwo(){
System.out.println("Method-2
from Class03");
}
}
Step 5: create TestNg xml file to execute all the methods
from different classes (i.e. Class01, Class02 and Class03 classes)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
TestNg xml file
<suite
name="my Demo testNg suite" >
<test name="Sample
tests">
<classes>
<class name="sampleone.Class01"
/>
<class name="sampleone.Class02"
/>
<class name="sampletwo.Class03"
/>
</classes>
</test>
</suite>
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Create TestNg xml file to execute some of the methods only
TestNg xml file code
<suite
name="my Demo testNg suite" >
<test name="Sample
tests">
<classes>
<class name="sampleone.Class01"
/>
<methods>
<include name="methodOne"
/>
<exclude name="methodTwo"
/>
</methods>
<class name="sampleone.Class02"
/>
<class name="sampletwo.Class03"
/>
</classes>
</test>
</suite>
EX:
Create TestNg class to validate
login functionality in mercury tours application by passing the data from
Testng xml file
TestNg class:
package
testng.concepts;
import
org.openqa.selenium.By;
import
org.openqa.selenium.WebDriver;
import
org.openqa.selenium.firefox.FirefoxDriver;
import
org.testng.Assert;
import
org.testng.Reporter;
import
org.testng.annotations.AfterClass;
import
org.testng.annotations.BeforeClass;
import
org.testng.annotations.Parameters;
import
org.testng.annotations.Test;
public class MtLoginTest {
WebDriver
driver;
@BeforeClass
public void setUp(){
driver= new
FirefoxDriver();
driver.get("http://newtours.demoaut.com");
driver.manage().window().maximize();
}
@Test
@Parameters({"uid","pwd"}) //to read data from TestNg xml
file
public void
userLogin(String userid, String passwd) throws InterruptedException{
//to perform
login operation
driver.findElement(By.name("userName")).sendKeys(userid);
driver.findElement(By.name("password")).sendKeys(passwd);
driver.findElement(By.name("login")).click();
Thread.sleep(5000);
//TestNg
Assert class to validate page title
Assert.assertEquals(driver.getTitle(), "Find a
Flight: Mercury Tours:");
//to send user
msg into XML reports and log section
Reporter.log("Successful
Login operation", true);
}
@AfterClass
public void tearDown(){
driver.close();
}
}
======================================================
TestNg xml file
<suite
name="Suite">
<test
name="Test">
<parameter
name="uid" value="mercury"
/>
<parameter
name="pwd" value="mercury"
/>
<classes>
<class name="testng.concepts.MtLoginTest"/>
</classes>
</test>
</suite>
Ex: create script to perform login operation in mercury tours
application on different browsers based on keyword given from testing xml file
Procedure:
Step 1: create class with required methods to perform login
operation in mercury tours
Step 2: Create TestNg xml file by passing keyword to
initialize browser
Procedure:
Step 1: create class with required methods:
public class Google {
WebDriver
driver;
@BeforeMethod
@Parameters({"browser"})
public void setUp(String myBrowser){
if(myBrowser.equalsIgnoreCase("firefox")){
driver=new FirefoxDriver();
}
else if(myBrowser.equalsIgnoreCase("chrome")){
System.setProperty("webdriver.chrome.driver","chromedriver.exe");
driver=new ChromeDriver();
}
else if(myBrowser.equalsIgnoreCase("ie")){
System.setProperty("webdriver.ie.driver","IEDriverServer_32.exe");
driver=new InternetExplorerDriver();
}
}
@Test
public void f() throws InterruptedException
{
Thread.sleep(4000);
driver.get("http://google.com/");
driver.findElement(By.name("q")).sendKeys("selenium");
driver.findElement(By.name("btnG")).click();
}
}
Create TestNg xml file with following code
xml version="1.0"
encoding="UTF-8"?>
<suite name="Suite"
parallel="tests">
<test name="firefoxTest">
<parameter name="browser"
value="firefox"/>
<classes>
<class name="demo1.Google"/>
</classes>
</test>
<test name="chromeTest">
<parameter name="browser"
value="chrome"/>
<classes>
<class name="demo1.Google"/>
</classes>
</test>
<test name="ieTest">
<parameter name="browser"
value="ie"/>
<classes>
<class name="demo1.Google"/>
</classes>
</test>
</suite>
