Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

TestNG @BeforeClass Annotation Example

DZone's Guide to

TestNG @BeforeClass Annotation Example

TestNG method that is annotated with @BeforeClass annotation will be run before the first test method in the current class is invoked.

· Java Zone ·
Free Resource

The CMS developers love. Open Source, API-first and Enterprise-grade. Try BloomReach CMS for free.

TestNG method that is annotated with @BeforeClass annotation will be run before the first test method in the current class is invoked.

Here is a quick example

Code

?
package com.skilledmonster.example;
import org.testng.Assert;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
/**
* Example to demonstrate use of @BeforeClass annotation of TestNG framework
*
* @author Jagadeesh Motamarri
* @version 1.0
*/
public class TestNGAnnotationBeforeClassExample {
@BeforeClass
public void oneTimeSetUp() {
System.out.println("@BeforeClass: The annotated method will be run before the first test method in the current class is invoked.");
}
@Test
public void validateSum() {
System.out.println("@Test : validateSum()");
int a = 5;
int b = 10;
Assert.assertEquals(a + b, 15);
}
@Test
public void validateDifference() {
System.out.println("@Test : validateDifference()");
int a = 5;
int b = 10;
Assert.assertEquals(b - a, 5);
}
}

Output

  testng_beforeclass_annotation 

As shown in the above console output, oneTimeSetUp() method is invoked before executing validateDifference() and validateSum() methods.

Download

BloomReach CMS: the API-first CMS of the future. Open-source & enterprise-grade. - As a Java developer, you will feel at home using Maven builds and your favorite IDE (e.g. Eclipse or IntelliJ) and continuous integration server (e.g. Jenkins). Manage your Java objects using Spring Framework, write your templates in JSP or Freemarker. Try for free.

Topics:
java ,tips and tricks ,testng

Published at DZone with permission of

Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}