TestNG - Basic Annotations - Listeners

@Test annotation marks a class or a method as part of the test.

The following is a list of attributes supported by the @Test annotation:

Create Test Case Class

Let's see how to use @Test annotation.

• Create a java test class, say, SimpleTestClass.java in /work/testng/src.

• Add a test method sum() to your test class.

• Add an Annotation @Test to method sum().

Following are the SimpleTestClass.java contents.

  import org.testng.annotations.Test;

  public class SimpleTestClass {

  	@Test
  	public void sum()
  	{
  		int sum=0;
  		int a=15;
  		int b=27;
  		sum=a+b;
  		System.out.println("sum="+sum);
  	}
  }

Create testng.xml

Next, let's create testng.xml file in /work/testng/src, to execute test case(s). This file captures your entire testing in XML. This file makes it easy to describe all your test suites and their parameters in one file, which you can check in your code repository or e-mail to coworkers. It also makes it easy to extract subsets of your tests or split several runtime configurations (e.g., testngdatabase.xml would run only tests that exercise your database).

  <?xml version="1.0" encoding="UTF-8"?>
  <!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
  <suite name="Suite">
    <test thread-count="5" name="Test">
      <classes>
        <class name="SimpleTestClass"/>
      </classes>
    </test> <!-- Test -->
  </suite> <!-- Suite -->

Compile the test case using javac.

/work/testng/src$ javac SimpleTestClass.java TestListener.java

Now, run the testng.xml, which will run the test case defined in <test> tag.

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

Verify the output.

  sum=42

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