JUnit – Exceptions Test

JUnit – Exceptions Test

JUnit provides a option of tracing the Exception handling of code. You can test the code whether code throws desired exception or not.

The expected parameter is used as follows @Test(expected) .

Below simple example explain how the @Test(expected) works in Junit.

import org.junit.Test;

import org.junit.runner.JUnitCore;

import org.junit.runner.Result;

import org.junit.runner.notification.Failure;

public class ExceptionTest {

      @Test(expected = ArithmeticException.class)

      public void divisionWithException() {

            int i = 1/0;

      }

      /**

       * @param args

       */

      public static void main(String[] args) {

             Result result = JUnitCore.runClasses(ExceptionTest.class);

             for (Failure failure : result.getFailures()) {

                    System.out.println(failure.toString());

             }

             System.out.println(result.wasSuccessful());

      }

}