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 1.5 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 "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)
Linux

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)
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 Files\Java\jdk1.7.0_25.
Linux Export JAVA_HOME=/usr/local/java-current.
Mac Export JAVA_HOME=/Library/Java/Home.

Append Java compiler location to System Path.

OS Output
Windows Append the string C:\Program Files\Java\jdk1.7.0_25\bin 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. At the time of writing this tutorial, we have downloaded testng-6.8.jar and copied it onto C:\> TestNG folder.

OS Archive name
Windows testng-6.8.jar
Linux testng-6.8.jar
Mac testng-6.8.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-6.8.jar at the location C:\>TestNG.

OS Description
Windows Set the environment variable TESTNG_HOME to C:\TESTNG.
Linux Export TESTNG_HOME=/usr/local/TESTNG
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-6.8.jar.
Linux Export CLASSPATH=$CLASSPATH:$TESTNG_HOME/testng-6.8.jar.
Mac Export CLASSPATH=$CLASSPATH:$TESTNG_HOME/testng-6.8.jar.

Step 6: Test TestNG Setup

Create a java class file named TestNGSimpleTest at C:\>TestNG_WORKSPACE.

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 C:\>TestNG_WORKSPACE 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 −

C:\TestNG_WORKSPACE>javac TestNGSimpleTest.java

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

C:\TestNG_WORKSPACE>java -cp "C:\TestNG_WORKSPACE" org.testng.TestNG testng.xml

Verify the output.

===============================================
Suite1
Total tests run: 1, Failures: 0, Skips: 0
===============================================
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