An extension of BaseOneAppPerTest providing Compile-time DI.

Trait that provides a new Application instance for each test.

This TestSuiteMixin trait's overridden withFixture method creates a new Application before each test and ensures it is cleaned up after the test has completed. You can access the Application from your tests as method app (which is marked implicit).

By default, this trait creates a new Application for each test according to the components defined in the test.

Here's an example that demonstrates some of the services provided by this trait:

import org.scalatestplus.play.PlaySpec
import org.scalatestplus.play.components.OneAppPerTestWithComponents
import play.api._
import play.api.mvc.Result
import play.api.test.Helpers._
import play.api.test.{FakeRequest, Helpers}

import scala.concurrent.Future

class ExampleComponentsSpec extends PlaySpec with OneAppPerTestWithComponents {

  override def components: BuiltInComponents = new BuiltInComponentsFromContext(context) with NoHttpFiltersComponents {

    import play.api.mvc.Results
    import play.api.routing.Router
    import play.api.routing.sird._

    lazy val router: Router = Router.from({
      case GET(p"/") => defaultActionBuilder {
        Results.Ok("success!")
      }
    })

    override lazy val configuration: Configuration = context.initialConfiguration ++ Configuration("foo" -> "bar", "ehcacheplugin" -> "disabled")
  }

  "The OneAppPerTestWithComponents trait" must {
    "provide an Application" in {
      import play.api.test.Helpers.{GET, route}
      val Some(result): Option[Future[Result]] = route(app, FakeRequest(GET, "/"))
      Helpers.contentAsString(result) must be("success!")
    }
    "override the configuration" in {
      app.configuration.getOptional[String]("foo") mustBe Some("bar")
    }
  }
}