Question

I need to test a controller, of action index(generated by the grails generate-all command). I have a test like this (in Spock) :

package mnm.schedule

import grails.test.mixin.*
import org.junit.*
import grails.plugin.spock.*
import spock.lang.Specification
import org.example.*;

class UserControllerSpec extends ControllerSpec {


def "test"() {
            setup:
            mockLogging(UserController, true)

            when:
            controller.index()

            then:
            redirectArgs.action == "list"
    }

} 

I get a error like this :

Error Error running script test-app :spock : cannot find shared instance field (Use --stacktrace to see the full trace)

After sometime I can run the test, the Test is getting PASSED.

Whats actually going wrong? Why the first time it shows that error? I’m new to Spock environment.

Thanks in advance.

Answer 1

Given that you are using Grails 2.x.x, you should use the @TestFor annotation which enhances unit testing framework classes with mixins.

In your case, you should add @TestFor(UserController) as a class-level annotation, so you can use the mockLogging method.