How To Create And Use TestNG.Xml File and different Test Suite Level TestNG xml files

What Is TestNG.Xml?

TestNG.xml file is a configuration file that helps in organizing our tests. It allows testers to create and handle multiple test classes, define test suites and tests.

It makes a tester's job easier by controlling the execution of tests by putting all the test cases together and run it under one XML file. This is a beautiful concept, without which, it is difficult to work in TestNG.

How to create TestNg.xml file 

Step1: Right-click on the Project folder, go to New and select ‘File’ as shown in the below image.

Step 2: Add the file name as ‘TestNG.xml’ as shown in the below image and click on the Finish button.

Step 3: Now you can add the below XML code in your testng.xml file. You can choose your Test suite name and the Test name as per the requirements.

TestNG XML file @ Method Level 

<suite name="Test cases execution @ Method Level">

<test name="Method Level Test Suites">

<classes>

<class name="com.testng.pages.TestNgSuite">

<methods>

<include name="method1" />

<include name="method2" />

<include name="method3" />

<include name="method4" />

<exclude name="divisiblebyZero" />

</methods>

</class>

<class name="com.testng.tests.RetryLogicTest">

<methods>

<include name="retryTestMethod" />

<exclude name="retryTestMethod1" />

</methods>

</class>

</classes>

</test>

</suite>

TestNG XML file @ Package Level 

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >

<suite name="Test cases execution @  Package Level">

<test name="Package Level Test Suites">

<packages>

<!-- <package name = "com.testng.pages"/> -->

<package name="com.testng.tests" />

</packages>

</test>

</suite>

TestNG XML file @ Class Level 

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >

<suite name="TestNG Suite">

<test name="Sample Test">

<classes> <!-- Test cases will execute within specified class -->

<class name="com.testng.pages.TestNgSuite" />

</classes>

</test>

</suite>

TestNG XML file @ Groups Level 

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">

<suite name="Test cases execution @ Groups Level">

<test name="Groups Level Test Suites">

<groups>

<run>

<!-- <include name="smoke" /> -->

<include name="Testing Tools" />

</run>

</groups>

<classes>

<class name="com.testng.pages.TestNgSuite" />

</classes>

</test>

</suite>

How to Download & Install TestNG in Eclipse

TestNG is an open-source tool and is available with most of the IDEs as a plugin. To Install TestNG in eclipse follow below steps:

Step 1: Launch Eclipse.

Step 2: Click Help –> Install New Software.

Step 3: Click “Add” button in the below snapshot.

Step4: In Name field type “TestNG” and in Location field type https://dl.bintray.com/testng-team/testng-eclipse-release/6.14.3/ and Click OK.

Step 5:

1. Select the "TestNG" checkbox
2. Click on the "Next" button.

Step 6: It will give you a review of Items to be installed. Click on Next.

Step 7:

1. Select the radio button "I accept the terms of the license agreement"
2. Click on Finish.

Step 8: If you encounter a Security warning, just click "Install Anyway".

Step 9: Wait for the installation to finish. When Eclipse prompts you for a restart, click "Restart now."

Step 10: After the restart, verify if TestNG was indeed successfully installed. Click Window > Show View > Other.

Then open the Java directory and see if TestNG is included.