我正在尝试Mock Objects in Play[2.0]的例子,但不幸的是我没有成功。
我有一个使用UserModel的UsersController。
trait UserModel extends ModelCompanion[User, ObjectId] {
// ...
}
接下来,抽象控制器
abstract class UsersController extends Controller {
val userModel: UserModel
def sayHello = Action(parse.json) { request =>
// return a play Action. Doesn't use userModel
}
// Other methods
}
在路径文件中,我用这种方式调用方法说Hello:
POST / hello controllers.Users.sayHello
在测试目录中,我使用UserModel mock创建了UsersController的子类。
package controllers
import org.specs2.mock.Mockito
object UserControllersTest extends UsersController with Mockito {
val userModel = mock[models.UserModel]
}
现在,主要部分。我按照之前提到的页面中的Jacob Groundwater示例创建了一个Spec测试。在为FakeApplication提取参数时,我包含了对UserControllersTest的调用。
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 ...
}
}
}
但是,当我运行测试时,我收到此错误消息:
[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)
其中UsersSayHelloSpec.scala:20引用我称之为运行方法的行。
所以我的问题是:我做错了什么?