Table of Contents

TestNG – Environment

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TestNG is a framework for Java, so the very first requirement is to have JDK installed in your machine.

System Requirement

JDK	1.7 or above.
Memory	No minimum requirement.
Disk Space	No minimum requirement.
Operating System	No minimum requirement.

Step 1 – Verify Java Installation in Your Machine

Open the console and execute a java command based on the operating system you have installed on your system.

OS	Task	Command
Windows	Open Command Console	c:> java -version
Linux	Open Command Terminal	$ java -version
Mac	Open Terminal	machine:~ joseph$ java -version

Let”s verify the output for all the operating systems −

OS	Output
Windows	java version “15.0.2” 2021-01-19 Java(TM) SE Runtime Environment (build 15.0.2+7-27) Java HotSpot(TM) 64-Bit Server VM (build 15.0.2+7-27, mixed mode, sharing)
Linux	openjdk version “11.0.11” 2021-04-20 OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.20.04) OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.20.04, mixed mode, sharing)
Mac	java version “1.7.0_25” Java(TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

Output

Windows

java version “15.0.2” 2021-01-19

Java(TM) SE Runtime Environment (build 15.0.2+7-27)

Java HotSpot(TM) 64-Bit Server VM (build 15.0.2+7-27, mixed mode, sharing)

Linux

openjdk version “11.0.11” 2021-04-20

OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.20.04)

OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.20.04, mixed mode, sharing)

Mac

java version “1.7.0_25”

Java(TM) SE Runtime Environment (build 1.7.0_25-b15)

Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

If you do not have Java, install the Java Software Development Kit (SDK) from https://www.oracle.com/technetwork/java/javase/downloads/index.html. We are assuming Java 1.7.0_25 as the installed version for this tutorial.

Step 2: Set JAVA Environment

Set the JAVA_HOME environment variable to point to the base directory location, where Java is installed on your machine. For example,

OS	Output
Windows	Set the environment variable JAVA_HOME to C:Program FilesJavajdk15.0.2.
Linux	export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64/bin/java. You can also set this environment variable in the /etc/environment. Restart the machine after setting else it will be lost in the session.
Mac	export JAVA_HOME=/Library/Java/Home.

Append Java compiler location to System Path.

OS	Output
Windows	Append the string C:Program FilesJavajdk1.7.0_25bin at the end of the system variable, Path.
Linux	export PATH=$PATH:$JAVA_HOME/bin/
Mac	Not required

Verify Java Installation using the command java -version as explained above.

Step 3: Download TestNG Archive

Download the latest version of TestNG jar file from http://www.testng.org or from here. At the time of writing this tutorial, we have downloaded testng-7.4.jar and copied it onto /work/testng folder.

OS	Archive name
Windows	testng-7.4.jar
Linux	testng-7.4.jar
Mac	testng-7.4.jar

Step 4: Set TestNG Environment

Set the TESTNG_HOME environment variable to point to the base directory location, where TestNG jar is stored on your machine. The following table shows how to set the environment variable in Windows, Linux, and Mac, assuming that we”ve stored testng-7.4.jar at the location /work/testng.

OS	Description
Windows	Set the environment variable TESTNG_HOME to C:testng.
Linux	export TESTNG_HOME=/work/testng. You can also set this environment variable in the /etc/environment. Restart the machine after setting else it will be lost in the session.
Mac	export TESTNG_HOME=/Library/testng

Step 5: Set CLASSPATH Variable

Set the CLASSPATH environment variable to point to the TestNG jar location.

OS	Description
Windows	Set the environment variable CLASSPATH to %CLASSPATH%;%TESTNG_HOME%testng-7.4.jar.
Linux	export CLASSPATH=$CLASSPATH:$TESTNG_HOME/testng-7.4.jar. This classpath is applicable only for current session. Once the current command termical closes, you will have to reset it.
Mac	export CLASSPATH=$CLASSPATH:$TESTNG_HOME/testng-7.4.jar.

Step 6: Test TestNG Setup

Create a java class file named TestNGSimpleTest at /work/testng/src

import org.testng.annotations.Test;
import static org.testng.Assert.assertEquals;

public class TestNGSimpleTest {
   @Test
   public void testAdd() {
      String str = "TestNG is working fine";
      AssertEquals("TestNG is working fine", str);
   }
}

TestNG can be invoked in several different ways −

With a testng.xml file.
With ANT.
From the command line.

Let us invoke using the testng.xml file. Create an xml file with the name testng.xml in /work/testng/src to execute Test case(s).

<?xml version = "1.0" encoding = "UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >

<suite name = "Suite1">
   <test name = "test1">
      <classes>
         <class name = "TestNGSimpleTest"/>
      </classes>
   </test>
</suite>

Step 7: Verify the Result

Compile the class using javac compiler as follows −

/work/testng/src$ javac TestNGSimpleTest.java

Now, invoke the testng.xml to see the result −

/work/testng/src$ java org.testng.TestNG testng.xml

Verify the output.

  ===============================================
  Suite
  Total tests run: 1, Passes: 1, Failures: 0, Skips: 0
  ===============================================

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