CODEWITHSUNDEEP
javatestngspring-test
Bertie
Bertie

Reputation: 17697

Accessing spring context in testng's @BeforeTest

I would like to register some web scopes to the spring context in my @BeforeTest method. But it turns out that spring context is still null at that point.

The test runs fine though, if I change into @BeforeMethod. I wonder how I can access the context in @BeforeTest, because I don't want the scope registration code to be repeated for each test methods.

Below are my code snippets.

public class MyTest extends MyBaseTest {
    @Test public void someTest() { /*...*/ }
}

@ContextConfiguration(locations="/my-context.xml")
public class MyBaseTest extends AbstractTestNGSpringContextTests {
    @BeforeTest public void registerWebScopes() {
        ConfigurableBeanFactory factory = (ConfigurableBeanFactory)
                this.applicationContext.getAutowireCapableBeanFactory();
        factory.registerScope("session", new SessionScope());
        factory.registerScope("request", new RequestScope());
    }   

    /* some protected methods here */
}

Here's the error message when running the test:

FAILED CONFIGURATION: @BeforeTest registerWebScopes
java.lang.NullPointerException
    at my.MyBaseTest.registerWebScopes(MyBaseTest.java:22)

Upvotes: 6

Views: 5686

Answers (2)

kuporific
kuporific

Reputation: 10323

TestNG runs @BeforeTest methods before @BeforeClass methods. The springTestContextPrepareTestInstance() is annotated with @BeforeClass and sets up the applicationContext. This is why the applicationContext is still null in a @BeforeTest method. @BeforeTest is for wapping a tagged group of tests. (It does not run before each @Test method, so it's a bit of a misnomer).

Instead of using @BeforeTest, you should probably use @BeforeClass (which is run once, before the first @Test in the current class). Be sure it depends on springTestContextPrepareTestInstance method, as in

@BeforeClass(dependsOnMethods = "springTestContextPrepareTestInstance")
public void registerWebScopes() {
    ConfigurableBeanFactory factory = (ConfigurableBeanFactory) 
            this.applicationContext.getAutowireCapableBeanFactory();
    factory.registerScope("session", new SessionScope());
    factory.registerScope("request", new RequestScope());
}

The @BeforeMethod works, too (as you mentioned) because they run after @BeforeClass methods.

Upvotes: 5

Joe Snikeris
Joe Snikeris

Reputation: 1140

Call springTestContextPrepareTestInstance() in your BeforeTest method.

Upvotes: 12

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