Grails service injection into integration test

Question

I have a very simple Grails Service:

class UserService {
    def returnHi() { return "Hi" }    
}

I'm trying to get access to the service in an integration test, like this:

def testService() {
  UserService userService
  assertEquals( "Hi", userService.returnHi() )
}

Why do I get the failure: java.lang.NullPointerException: Cannot invoke method returnHi() on null object?

Thanks for your time

droggo droggo · Accepted Answer · 2013-01-19T21:26:28

It's enough to put 'def userService' as your class field instead of putting in inside of the method. In integration tests, beans are injected the same as in controllers, services and other beans.

Do something like:

class MyTests {
    def userService

    void serviceTest(){
        assert userService.returnHi(), 'Hi'
    }        
}

P.S. Make sure the name of the service is correct and written in camelCase.

Grails service injection into integration test

2 Answers