Working with TestNG - Starters Guide

A test suite is a group of test cases intended  set of behaviors of software program. TestNG suite can contain more than one test and is defined by the <suite> tag. User can run the test suite by using testing.xml file. It is explained with below example. <suite> is the root tag of testng.xml. It describes test suite which in turn consists of several <test> sections.

The attributes of <suite> accepts.

Name:The name of this suite and mandatory.

Parallel:This attribute is used to run different threads as a suite

Annotations: The annotations are used in tests.

Verbose: This attribute used to specify the level or verbosity for run.

Thread-Count: The number of threads to use and  if parallel mode is enabled if not ignored.

Create a Class:

Create a java class named as StudentMessage.java

package testNG;

public class StudentMessage {
	private static String marks;

	//Constructor
	public StudentMessage(String marks) {
		StudentMessage.marks = marks;
	}

	//Marks
	public static String printMarks() {
		System.out.println("Student marks: " + marks);
		returnmarks;
	}

	//Subject
	public static String printSubject() {
		marks = "Maths" + marks;

		System.out.println("Student Subject and marks: " + marks);
		returnmarks;
	}
}

Create Test Case Classes:

Create a java class named as TestCase1.java

package testNG;

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

public class TestCase1 {
	String marks = "78";
	StudentMessage stud = newStudentMessage(marks);

	@Test
	public void method1() {
		Assert.assertEquals(marks, StudentMessage.printMarks());
	}
}

Create a java class named as TestCase2.java

package testNG;

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

public class TestCase2 {
	String marks = "78";
	StudentMessage stud = newStudentMessage(marks);

	@Test
	public void method1() {
		marks = "Maths" + marks;
		Assert.assertEquals(marks, StudentMessage.printSubject());
	}
}

Now, prepare the testng.xml to run prepared classes, "testSuite" which includes test1 and test2.

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

<suite name="test Suite">
<test name="test1">
   <classes>
       <class name="testNG.TestCase1"/>
   </classes>
</test>
<test name="test2">
   <classes>
       <class name="testNG.TestCase2"/>
    </classes>
</test>
</suite>

Run the testing.xml file by clicking on run button in eclipse.

The Output will be something like as shown below

User can also check the test-output folder. Under the test Suitefolder, we able to see two html files created, test1.html and test2.html: