How to Mock Command Object that is inside Controller

Question

I have a controller class, inside of which i have a command object. I have a method find() which uses this command object as follows:

class itemController{

         


        

Answer 1

You can use mockCommandObject

Class RioController

class RioController {
    class UserCommand{
        String email
        static constraints = {
            email blank: false, email: true
        }
    }

    def load={UserCommand cmd -> 
        if(cmd.validate()){
            flash.message = "Ok"
        }
        else{
            flash.message = "Where is the email?"
        }
    }
}

Class RioControllerTests

import grails.test.mixin.*
import org.junit.*

@TestFor(RioController)
class RioControllerTests {

    @Test
    void testLoad(){
        mockCommandObject RioController.UserCommand
        controller.load()
        assert flash.message == "Where is the email?"

        params.email = "verynew@email.com"
        controller.load()
        assert flash.message == "Ok"
    }
}