Stub Controller in Play 2.0 - scala

Question

I am trying folow the example from Mock Objects in Play[2.0] but unfortunately I am not having success.
I have a UsersController that uses a UserModel.
trait UserModel extends ModelCompanion[User, ObjectId] {
// ...
}
Next, the abstract controller
abstract class UsersController extends Controller {
val userModel: UserModel
def sayHello = Action(parse.json) { request =>
// return a play Action. Doesn't use userModel
}
// Other methods
}
In the routes file, I call method say Hello in this way:
POST /hello controllers.Users.sayHello
In test directory, I created a subclass of UsersController using a UserModel mock.
package controllers
import org.specs2.mock.Mockito
object UserControllersTest extends UsersController with Mockito {
val userModel = mock[models.UserModel]
}
Now, the main part. I created a Spec test following the Jacob Groundwater example in the page mentioned before. In pluing argument for FakeApplication, I included a calling to UserControllersTest.
package controllers
import org.specs2.mutable.Specification
import play.api.libs.json.Json
import play.api.test._
import play.api.test.Helpers._
class UsersSayHelloSpec extends Specification {
running(FakeApplication()) {
"Users.SayHello" should {
def sendJson(jsonMap: Map[String, String], shouldBeCorrect: Boolean) = {
running(new FakeApplication(
additionalPlugins = Seq("controllers.UserControllersTest"))) {
// Preapration
val jsonRequisition = Json.toJson(jsonMap)
val Some(result) = routeAndCall(FakeRequest(POST,
"/hello",
FakeHeaders(Map("Content-Type" -> Seq("application/json"))),
jsonRequisition))
// ...
}
}
"Not process a empty String" in {
sendJson(Map.empty[String, String], false)
}
// Other tests calling sendJson ...
}
}
}
However, when I run the test I got this error message:
[info] Users.SayHello should
[error] ! Not process a empty String
[error] PlayException: Cannot load plugin [Plugin [controllers.UserControllersTest] cannot been instantiated.] (Application.scala:171)
...
[error] play.api.Application.<init>(Application.scala:158)
[error] play.api.test.FakeApplication.<init>(Fakes.scala:141)
[error] controllers.UsersSayHelloSpec$$anonfun$1$$anonfun$apply$5.sendJson$1(UsersSayHelloSpec.scala:20)
[error] controllers.UsersSayHelloSpec$$anonfun$1$$anonfun$apply$5$$anonfun$apply$26.apply(UsersSayHelloSpec.scala:46)
[error] controllers.UsersSayHelloSpec$$anonfun$1$$anonfun$apply$5$$anonfun$apply$26.apply(UsersSayHelloSpec.scala:46)
Where UsersSayHelloSpec.scala:20 referes to line where I call running method.
So my question is: What am I doing wrong?

Answer 1

I'm not sure what exactly are you trying to do, but the answer for question 'What am I doing wrong?' is:
The parameter 'additionalPlugins' is for additional Play plugins, and 'controllers.UserControllersTest' is not a Play plugin. It's a Controller.
You can read about Play 2 plugins here: http://www.objectify.be/wordpress/?p=464
Have you tried these examples: http://www.playframework.org/documentation/2.0.4/ScalaFunctionalTest ?