grails - How to access grailsApplication and ApplicationContext in Functional Tests -

i building grails rest application , have written functional tests using spock. note these functional tests rest services only.

class loginfunctionalspec extends specification {   def setup() {     // here want access grailsapplication.config   } } 

i have tried following approaches:

1. injecting grailsapplication (by defining class level variable), nothing get's injected.
2. using applicationholder.application.config has been deprecated , suggested approach previous point.
3. tried using plugin remote-control:1.4 although grails console showed plugin installed didn't find class remotecontrol. never sure of approach
4. i tried reading grails-app/conf/config.groovy file (as explained here) got filenotfoundexception.

but none of them provide me grailsapplication.config inside functional test.

is there way achieve ?

update

@dmahapatro

i not using geb because testing rest services , there no browser automation required.

as said in point#1 grails application not being auto-injected.

class loginfunctionalspec extends specification {   def grailsapplication    def setup() {      def port = grailsapplication.config.mongo.port //throws npe   } } 

it throws npe saying config property being invoked on null object.

i think not need inject explicitly. grailsapplication available in tests default.

class loginfunctionalspec extends specification {   def setup() {      grailsapplication.config.blah //should work   } } 

note-
spock not provide direct support functional tests. need use geb proper functional tests.