grails code-coverage cannot acces to method - testing

Question

I´m trying to do test in grails 2 with Coverage, but I cannot acces to method:
It said that:
"java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request..."
class UserController implements ResourceLoaderAware{
def index(Integer max) {
params.max = Math.min(max ?: 10, 100)
respond User.list(params), model:[userInstanceCount: User.count()]
}
}
import grails.test.mixin.Mock
import grails.test.mixin.TestMixin
import grails.test.mixin.support.GrailsUnitTestMixin
import spock.lang.Specification
import com.snt.olucarodashboard.UserController
import grails.test.mixin.TestFor
#TestMixin(GrailsUnitTestMixin)
class UserControllerSpec extends Specification {
UserController controller=new UserController()
void "Test the index action returns the correct model"() {
when: "The index action is executed"
controller.index(0)
}
}
What is the problem?
Thanks

Answer 1

Instead of instantiating the controller yourself, use the #TestFor annotation at the class level
import grails.test.mixin.TestFor
#TestMixin(GrailsUnitTestMixin)
#TestFor( UserController )
class UserControllerSpec extends Specification {
void "Test the index action returns the correct model"() {
when: "The index action is executed"
controller.index(0)
}
}