Getting Started with TestNG

TestNG is a testing framework which, inspired by JUnit and NUnit, but introduces things like dependency testing, grouping concept to make testing more powerful and easier to do. It is designed to cover all categories of tests: unit, functional, end-to-end, integration, etc...
The NG in TestNG stands for Next Generation. TestNG requires JDK7 or higher.
Reference: http://testng.org/doc/index.html

In this post, we will be discussing how to use TestNG to write a simple test:

Firstly, add the TestNG library in the pom.xml

	<dependency>
	<groupId>org.testng</groupId>
	<artifactId>testng</artifactId>
	<version>6.9.4</version>
	<scope>test</scope>
	</dependency>

view raw TestNGPomDependency hosted with ❤ by GitHub

Lets create a simple Java class that has a method that returns the String passed to it.

	public class ExampleString {
	public String generateString(String str){
	return str;
	}
	}

view raw TestNGExampleClass hosted with ❤ by GitHub

Create a test case like this:

	import org.testng.Assert;
	import org.testng.annotations.Test;
	public class TestExampleString {
	@Test()
	public void testGenerateString(){
	ExampleString example = new ExampleString();
	String generateStr = example.generateString("Hello World");
	Assert.assertNotNull(generateStr);
	Assert.assertEquals(generateStr,"Hello World");
	}
	}

view raw TestNGExampleTest hosted with ❤ by GitHub

Thats it, a simple TestNG test case is created.