[FIXED] Java Testng unit test: Spring is not able to create object before BeforeSuite or BeforeTest

Issue

I have an unit test is working fine in it's current format. My unit test looks like:

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.testng.AbstractTestNGSpringContextTests;
import org.testng.Assert;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

@Test
@ContextConfiguration(locations = { "classpath:testContext.xml" })
public class DialPadMonitorTest extends AbstractTestNGSpringContextTests
{
    @Autowired
    DialPadMonitor service;


    @BeforeSuite
    public void doBeforeSuite() {       
        System.out.println("Initializing suit.........");
    }

    @BeforeTest
    public void doBeforeTest() {
        System.out.println("Initializing tests.........");
    }

    @Test()
    void testIfEasyToDial()
    {
        service.createDialAssociation();

        Assert.assertTrue(service.isNumberEasy(159658521));
        Assert.assertTrue(service.isNumberEasy(555555555));
        Assert.assertFalse(service.isNumberEasy(505555555));
        Assert.assertFalse(service.isNumberEasy(555555505));

        Assert.assertTrue(service.isNumberEasy(2547096));
        Assert.assertTrue(service.isNumberEasy(5547521));
        Assert.assertFalse(service.isNumberEasy(2806547));
        Assert.assertFalse(service.isNumberEasy(3558123));

    }

    @Test()
    void testIfAssociated()
    {
        service.createDialAssociation();

        Assert.assertTrue(service.isNoAssociated(3,3));
        Assert.assertTrue(service.isNoAssociated(3,6));
        Assert.assertFalse(service.isNoAssociated(3,9));

    }
}

Even though I am seeing the comments like

• System.out.println("Initializing suit.........");
• System.out.println("Initializing test.........");

Problem is that if I move service.createDialAssociation() into any of BeforeSuite or BeforeTest, I am getting null pointer exception.

Any insight on why am I getting the null pointer exception in that case and how to solve?

Solution

You should use @BeforeMethod instead of @BeforeTest because context is initialized that way. You can see it in a Spring source file.

Answered By - Jaroslav Cincera
Answer Checked By - Robin (JavaFixing Admin)