I want to write functional test for my controller in PlayFramework. To do that I want to mock implementation of some classes.
I found nice example of how to do that using spec2 here: http://www.innovaedge.com/2015/07/01/how-to-use-mocks-in-injected-objects-with-guiceplayscala/
But I'm using scala test with OneAppPerSuite
trait that uses FakeApplication. Here are documentation: https://www.playframework.com/documentation/2.4.x/ScalaFunctionalTestingWithScalaTest
Problem is that i cannot found a way to intercept into GuiceApplicationBuilder
and override some bindings with mock implementation.
Here are FakeApplication
implementation from play.api.test
:
case class FakeApplication(
override val path: java.io.File = new java.io.File("."),
override val classloader: ClassLoader = classOf[FakeApplication].getClassLoader,
additionalPlugins: Seq[String] = Nil,
withoutPlugins: Seq[String] = Nil,
additionalConfiguration: Map[String, _ <: Any] = Map.empty,
withGlobal: Option[play.api.GlobalSettings] = None,
withRoutes: PartialFunction[(String, String), Handler] = PartialFunction.empty) extends Application {
private val app: Application = new GuiceApplicationBuilder()
.in(Environment(path, classloader, Mode.Test))
.global(withGlobal.orNull)
.configure(additionalConfiguration)
.bindings(
bind[FakePluginsConfig] to FakePluginsConfig(additionalPlugins, withoutPlugins),
bind[FakeRouterConfig] to FakeRouterConfig(withRoutes))
.overrides(
bind[Plugins].toProvider[FakePluginsProvider],
bind[Router].toProvider[FakeRouterProvider])
.build
So there is no way for me to intercept into GuiceApplicationBuilder
and override bindings.
I'm new to playframework so sorry if question looks a bit silly. Thanks!
Take a look at GuiceOneAppPerTest . Here is an example (Play 2.8, scala 2.13):
abstract class MyBaseSpec extends PlaySpec with GuiceOneAppPerTest with Results with Matchers with MockFactory {
def overrideModules: Seq[GuiceableModule] = Nil
override def newAppForTest(testData: TestData): Application = {
GuiceApplicationBuilder()
.overrides(bind[ControllerComponents].toInstance(Helpers.stubControllerComponents()))
.overrides(overrideModules: _*)
.build()
}
}
class OrderServiceSpec extends MyBaseSpec {
val ordersService: OrdersService = mock[OrdersService]
val usersService: UsersService = mock[UsersService]
override def overrideModules = Seq(
bind[OrdersService].toInstance(ordersService),
bind[UsersService].toInstance(usersService),
)
// tests
}
You are probably using an older version of ScalaTestPlus, which didn't support overriding FakeApplication with Application. In Play docs (Play 2.4) the library version is "1.4.0-M3" but it should be "1.4.0".
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