Working with TestNG - Starters Guide

TestNG is used to execute test cases. Class is the starting point for executing tests in the TestNG. TestNG object is created by users and can invoke in various ways:

• On a testng.xml, created entirely from Java.
• By a testng.xml existing.
• By setting the test classes.

Users can define which groups to include/exclude, assign parameters, etc.

 The parameters of command line are:

• -groups
• -d outputdir: specify the output directory.
• -target
• -testclass class_name: several or specifies one class names
• -sourcedir src1, src2 , source directories of list
• -testjar jar_name: specifies the jar containing the tests.
• -listener

Create a Class:

Create a class named as StudentMessage

package testNG;

public class StudentMessage {
	private static int marks;

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

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

Create Test Case Class:

Create java class named as TestCase1

package testNG;

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

public class TestCase_1 {
	int marks = 78;
	StudentMessage stud = newStudentMessage(marks);

	@Test
	Public void method_1() {
		Assert.assertEquals(marks, StudentMessage.printMarks());
	}
}

Create testing.xml

testing.xml is another way to invoke testNG. This file captures entire testing in XML. This file allows it to describe all test suites and their parameters in a file which can check in code repository.

<?xml version="1.0" encoding="UTF-8"?>
<suite name="test Suite">
<test name="test">
<classes>
      <class name="testNG.TestCase1"/>
</classes>
</test>
</suite>

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

You will get this Output