                     }
 
                     it("isNoOpPlayback is false") {
-                        expect(posterPlugin.isNoOpPlayback).to(beFalse())
+                        expect(posterPlugin).toNot(beAKindOf(NoOpPlayback.self))
                     }
                 }
             }

                    core = CoreFactory.create(with: options, layerComposer: layerComposer)
                    core.render()

                    let posterPlugin = self.getPosterPlugin(core.activeContainer)

                    expect(posterPlugin.view.superview).to(equal(core.activeContainer?.view))
                }
            }


                    }

                    it("isNoOpPlayback is true") {
                        expect(posterPlugin.activePlayback).to(beAKindOf(NoOpPlayback.self))
                    }

                    context("and change again to another playback") {
                        beforeEach {
                            core.activeContainer?.playback = AVFoundationPlayback(options: [:])
                            posterPlugin = self.getPosterPlugin(core)
                        }

                        it("hides itself") {
