Unit Testing Controller based RESTful Services in Grails

commentsNo comments    userJonathan Chauncey

December 1st, 2009 

Just a quick example on how you can test the various HTTP methods for your Grails controllers.

Controller:

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def show = {
        def user = User.get(params.id)
        if(user) {
            withFormat {
                html user:user
                xml { render user as XML }
                json { render user as JSON }
            }
        } else {
            response.sendError 404
        }
    }

Unit Tests:

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    void testXMLResponse() {
        mockDomain(User, [new User(id:1, username:"fred", password:User.encrypt("letmein"))])

        controller.request.method = 'GET'
        controller.request.contentType = 'text/xml'
        controller.request.format = 'xml'
        controller.params.id = '1'
       
        controller.show()

        def user = XML.parse(controller.response.getContentAsString())
        assert user.id == 1
        assert user.username == "fred"
        assert user.password == User.encrypt("letmein")
    }
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    void testJSONResponse() {
        mockDomain(User, [new User(id:1, username:"fred", password:User.encrypt("letmein"))])
       
        controller.request.method = 'GET'
        controller.request.contentType = 'text/json'
        controller.request.format = 'json'
        controller.params.id = '1'
       
        controller.show()
       
        def user = JSON.parse(controller.response.getContentAsString())
        println controller.response.contentAsString
        assert user.id == 1
        assert user.username == "fred"
        assert user.password == User.encrypt("letmein")
    }

Pretty simple!

Posted in: REST, grails, groovy



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